HPI Nitro RS4 2

[Killer racer]

Can I be competitive in a race with HPI with all of the new advanced touring cars? The guys at my local hobby shop laughed at me when I told them I wanted to race. They even called my car a piece of crap. Does anyone have a good winning HPI set up they are willing to share?:(

[Killer racer]

I need a good winning street setup any suggestions?:D

[viper-gtsr]

irun in the top three with this setup front sway bar os green the springs are green the back sway bar is purple the back springs are red but i also have the nitro handling kit in it to :)

[Killer racer]

Thank you! what kind of tires do you run? :D

[metallihockey88]

hey man, not too hard to get the rs4 race ready...i have 1100 in mine but the only real useful upgrades that i have are the cvd's all around, .12 cv-r, hpi exhaust and belted x-patterns all around...i dominate my track and i race mtx 2's a few ob4's and some other rs4's

[Killer racer]

Thanks for the reply. I am getting my car dialed in to race. I have a RB C-12 with a paris turbo ripple pipe two speed transmition. I am running belted soft HPI slicks. I don't have CVD's yet. The only problem now is the only track we have is shut down.:)

[Saboteur]

$1100 in an NRS4-2??? WOAH....with that kinda money you might as well buy 1/8 scale. :)

[Killer racer]

I agree!!!!!!!!!! But I have probbably spent the same over time not in one shot. I love my HPI.:D

[Killer racer]

What is the most effective hop up to buy for the Nitro RS4 2??
CVD what do you think.?:)

[Mustang/Chevy Killer]

well my setup is pretty much basic but my car really cooks with this setup:
os max .12 cvrx, 1hp
yellow springs, 50 wt oil, and a small shock spacer
2 speed tranny, a must have
green sway bar in rear, no front one
stock tires if that helps
stock sterring servo but controlled by an XR3
stock throttle as well, same as above
could use fiber brake but not ready for it
mip touring car exhaust, really great
other than that that's what works for me, so i hope this helps out and i've got less than 600 in mine.

[NewToNitro]

How much do you htink i could get for my RS4-2 RTR stock? How much modded....I have a lot of graphite and tuned pipe and header...2-speed.

[Killer racer]

Check out the going prices on Ebay that will give you a good idea.:D

[mab_man20]

I've got my nitro flying, i can out turn and our accelerate most of the serpent guys (sometimes its just because they have to wait longer to hit the gas or their mega dollar engines will just spin them out).

front:
ride height, 2mm
toe: -1
camber: -1
white springs
45lb oil
1 3mm spacer inside the shocks

rear:
copper springs (stock ones on the RTR)
45lb oil
stock toe
camber: -1
ride height: 1.5mm

x-pattern belted pro compound, with yellow inserts.
.15fe racing clutch, rrp lw flywheel, better head.
Associated pipe, losi header (who would have thought that?)

I faired very well last year and will be messing with all sorts of setups this season and i can get back to you on how they work out.

[falcon68]

Well, The most effective upgrade for your vehicle, before you spend too much is a FAILSAFE!!!!!!
Then you go to the CVD's
then I would say graphite or aluminum y-brace and upperdeck

[Killer racer]

Well I have a grafite y brace and an aluminum upper deck no CVD's. But how do you install a fail safe.:D

[falcon68]

It's really quite easy, all you do is disconnect the throttle servo , plug the failsafe in, and the servo plugs into the back of the failsafe. All you have to adjust is the direction in which it travels in case of a failure. All that is, is a small flat head screw.
Just out of curiosity, you are familiar with the purpose of a failsafe, right?

[Killer racer]

Yes I know what a fail safe is my local hobby shop does not sell them. How much do the cost and how makes them?:D

[falcon68]

Really the best place to buy them is E-bay. Most of what's there is brand new. Average price is $30-$35. Tower hobbies sells a futaba fail safe for $49.99

[falcon68]

Oh Yeah, Brand names are
Futaba, KoPopro,

[stripedape]

I bought the Megatech alloy steering kit for my RS4 and it cuts steering travel in half when you turn towards the drivers side. If I had looked a little closer at it I would have noticed it doesent have the same offset that the stock bellcrank has. It tightens up the steering alright but it does limit turning ability on tight tracks so beware!

[falcon68]

That's right, I noticed the same thing after installing the powerline steering assembly on my RS4. It really did'nt make a big difference to me though, all I do is play in parkng lots anyway. I can see how that would make a big difference on a tight track. Also, if you're going to do the steering upgrade, it's a really a good idea to get the RPM heavy duty ball cups as well. That will take more of the play out of the steering. It works Well

[Killer racer]

I think the best way to go is to by the bellcrank set from the the nitro racer 2 because it has the adjustable servo saver.:)

[mab_man20]

Im looking at winning the points series with my once RTR HPI. I now have all the performance goodies (except CVD's) i still run the FE and i pass MT-12's on the straight.

If anybody wants it i can give them my set up.

email me at mab_man20@hotmail.com I run on a pritty tight parkinglot track.

[Killer racer]

Did you modify your Nitro star FE because I had one and it had no low end at all. I run a RB C-12 now and I have to much low end now. The car spins out when ever I punch the throttle!!!:)

[mab_man20]

The best solution i have seen to the "to much power" that almost every race engine has now is to get a set of restrictors. There is a little artical on them in the newest RCCA, they may have it up on the site. Trinity makes a good set and i think ofna is the other company they mention in the artical. Io sounds crazy to slow down your big buck engine, but i guerentee it will quicken laptimes. I run a FE with a single needle carb and upgraded heatsink head and i kick a few serpents and a lot of other overpowered cars.

[Killer racer]

What do you all think of the new RS4 3 compared to the RS4 2 ?
I have not see a new Rs4 in action so I can't judge it. I still think belts are better. There are only a hand full of good shaft touring cars.:D

[Saboteur]

Yeah belts are smoother and lighter than shaft drive, but if you run in areas with debris, your sure to get something stuck in the belts, or ruin them. The rs43 i was told is better in stock form than the hpi rs4-2 because its shaft driven, has a box to seal the radio gear, and comes with a heat sink. Although its heavy its still pretty good. And it comes in a race vs, the type ss. IT comes with a 2speed, 1hp .12 engine, and other goodies.

[Killer racer]

I was kind of thinking that the way it would be. I am very happy with my rs4 2 right now so I am not in a hurry to buy a new car.

[Saboteur]

Yeah, I suggest you upgrade on the HPI rs4-2.

[Killer racer]

My car is very upgraded. I have an aluminium top deck 4mm chasis, two speed tranny, grafite y brace. HPI super soft slicks ant Xray wheels. I run an RB C-12 with light weght Robinson racing flywheel an MIP cluch with a HPI header all exiting from a Paris Turbo ring piple. Also a side belt tensioner. Its fast.:D

[Saboteur]

Oh mybad. I forgot. :rolleyes: Ah well, guess it would be cool to have a shaft driven car too. :)

[metallihockey88]

You wanna talk crazy fast?...I am running a brand new Collari XS .12 motor with a BTH and a Paris Pipe, then some Belted X-Patterns on Pro-line Warlock rims. Next comes HD 2-speed, front, side and rear belt tensioners with graphite upper deck, y-brace and front/rear shock towers. Next comes alum. fornt and rear bulkheads, front and rear arms and front and rear knuckles....My car is insanely fast and handles like a dream..lets see someone with a sweeter combo than mine....lol...oh yeah, by the way, have still never lost a race against serpeents, mugens, tc3's, you name it and i have beat it, sorry to brag, but my car is godly...lol

[Saboteur]

Obviously, you must have good driving skills in order to win. you can show up at the track with the best setup, or car, and still lose a race. They are also many other factors that can ruin your chance of winning such as hackers, engine refusing to start at the beginning of the race, fuel line comes loose, car crashes into wall or gets hit by another car and something breaks, etc. So what im basically saying you must be a really good driver at your track to beat all the rest, or you can be just bragging about everything, except your car being very fast. :D :p

[metallihockey88]

its not so much that i am a good driver, it is my car....for osme reason, this thing is glued to the ground...it takes turns got 10 mph faster than other cars, but they spin out, mine just sticks and slides a little sometimes and once it gets out of that turn, it is gone cause the accel on this car is crazy...so it really is a good part of the car that is winning these races, not just me

[Saboteur]

well i know its both the drivers skills and the car setup, but also are you faster with the hpi that the others brand of cars? Maybe so. Each driver has their driving techniques and run cars they turn the fastest laps with. Some like get loose and slide into and coming outta turns. Others like to stay "glued" to the ground and try not to slide. Also its the tires that can cause spin outs either its not getting enough traction, or maybe one wheel is getting too much power and the diff needs to be adjusted. These can be the causes of spinning out in turns.

[metallihockey88]

your 100% correct in everything you have said

[Killer racer]

A car will go as fast as you can take it. HPI are very good car and they can win just as much as a serpent or mugen of tc3 or what ever. Its all based on you as the driver and your ability to control your setup. I can out run my friends with better cars just because I have more driving time. :D

[autotr8er]

Hey man, I've raced against Mugens and kept up. Surpassed everage drivers but skilled drivers will eat your lunch. Never the less, I'm the fastest at my local track here in Dallas and If you are interested, I'll give you the skinny on making all of the Advertising disciples converts. I won't post the secrets here in the forum.

[Killer racer]

Has any body raced a Trinity Reflex NT with a RS4 2 yet if you did how did they compare?:)

[deeman]

Originally posted by Killer racer
Has any body raced a Trinity Reflex NT with a RS4 2 yet if you did how did they compare?:)

I have both cars and it's really an apples to oranges comparison. Don't get me wrong, I have tons of fun with my modified RS4 (graphite goodies & Picco .12). It's just that my Reflex is a much better built and better handling car. To get an RS4 to handle like a reflex will take lots of $$$. My reflex is totally stock (just what came in kit and a Picco .12) and it handles about 10 times better than my RS4. The RS4 is also much more delicate than my reflex and harder to tune (fewer tuning options).

Just remember, I'm not making this a RS4 vs. Reflex war. As I said, I have both, race both, and have tons of fun with both. For the money (the Reflex only cost me $230/motor $149), the Reflex turned out to be a better value. But, the RS4 was a great platform to learn on (fixing, wrenching, suspension tuning, tire selection, engine tuning and especially driving). All of that was valuable experience that helped me when I moved up to the Reflex.

Hope that helps :)
D...

[Saboteur]

Well said Deeman :) I agree.

[quadrent]

I have an RS4 2 with about 1500 into it, I recently bought a 12R SC Evolution II ( 1.2hp ), I also have an hpi header/exhaust and racing clutch, w/2 speed tranny. My car is fast, almost too fast. I've only had my car for about a year and I think I've gone a little over board with the lack of experience I have in this. But who cares, it's fast and I love it :) The only problem I have is with so much speed it's hard for me to control my car. Would anyone happen know what the best suspension setup would be? I've tried alot of different things but I'd like to see what everyone else is using for there cars.

-quadrent

[Saboteur]

At times I thought of taking some trips to my local track, when I get the chance, and bash with a rs4-2, or a racer2. If I got the rs4 2, the only thing I'd change on it is the engine(after it dies), tuned pipe, slap on a 2speed, tires, rims, body, rear brace, and well, thats about it for now. But im not sure when I'm gonna move, so it looks like I have to put that plan on hold. :(

[markanda]

Originally posted by Saboteur
At times I thought of taking some trips to my local track, when I get the chance, and bash with a rs4-2, or a racer2. If I got the rs4 2, the only thing I'd change on it is the engine(after it dies), tuned pipe, slap on a 2speed, tires, rims, body, rear brace, and well, thats about it for now. But im not sure when I'm gonna move, so it looks like I have to put that plan on hold. :(

Sabotuer, do you race at Floyd Bennet Field ?

My RS42 was untouchable until yesterday, bent the chassis 90 degrees in a collision with a parked car ! Belt drive does rule - except for debris laden areas !

Mark

[Saboteur]

90 DEGREES!?! OUCH! :eek: Man I hope you didnt break anything else. Yeah I sometimes take few visits to floyd bennet. But this summer I wanna race this car at the top of the list on this page ---> http://www.ahc1931.com/neo_specials.html

Its a really good car, comes with lots of upgrades and its fast(45-50+mph) I cant wait till I get the cash to buy it, then I'll be at the track more often. Do you go to east coast hobbies? I havent been there in a while. Site is down and I dont know what new stuff they have in there. See ya soon

Saboteur

[Killer racer]

Bending the chasis sucks I did the same thing but not as bad. If you by an aftermarket chassis get a RC TRIX Chassis its 1/8 of an inches thick I got one on Ebay for $27.00 and a my hobby store it was fifty. I will all so help control your car with more weight.

[markanda]

Originally posted by Saboteur
90 DEGREES!?! OUCH! :eek: Man I hope you didnt break anything else. Yeah I sometimes take few visits to floyd bennet. But this summer I wanna race this car at the top of the list on this page ---> http://www.ahc1931.com/neo_specials.html

Its a really good car, comes with lots of upgrades and its fast(45-50+mph) I cant wait till I get the cash to buy it, then I'll be at the track more often. Do you go to east coast hobbies? I havent been there in a while. Site is down and I dont know what new stuff they have in there. See ya soon

Saboteur

I am not a big megatech fan....but the NEO I have seen and I like. I dont go to east coast....I am a Nagengast HObby guy (Fresh pond road)

I go to Floyd bennet during the week...the weekends are too crazy there !

Later
Mark

[Saboteur]

LOL thanks for telling me mark. Now I know to come during the weekdays. :) Yeah I really like the neo. Gonna snag it as soon as I get my my cash.

[tonyr]

i love my rs4-3 rtr I added a header keept the stock pipe added a 2 speed trans new air filter adjustable turnbuckles and some new foam tires the thing kicks ass no problom keeping up with ss's its the driving skill that is abouT 60% OF THE BATTLE :D
DOES ANYONE LIKE THE FOAM TIRES OVER THE RUBBER I RUN ON A PRETTY MUCH SMOOTH CLEAN SOMETIMES HOT ASPHALT SURFACE SOME GOOD RUBBER SUGESTIONS WOULD BE APRECIATED

[Saboteur]

Foams have great traction on any surface, but it does wear out fast, especially the soft compound ones. HPi xpattern radials are great for running on slight dusty or prepared surfaces such as asphalt.

[--MN--]

I got a NitroRS4 racer 2 and just an OS .12CV in it. But it goes pretty fast with the 2 speed tranny.
I use slicks from Proline. I run my car on bitumen and the tyres have lasted quite a while. But on asphalt, when I feel like being a bit wreckless, the tyres tend to wear out pretty quick, but no wher near as quick as foams would.
only thing with slicks is never let off the throttle fully while driving, always have some throttle while you turn with slicks or you spin out.

[Killer racer]

Try running the HPI slicks soft compound they give good traction and they don't wear as fast as Pr-lines.:)

[Saboteur]

I do believe the softer compounds will give better traction, but less wear. As to the harder ones might need some traction additive to help give you the traction you want, but they last longer. Killer, do the HPI soft compound slicks last longer than the proline ones?

[Killer racer]

YES

[HP7]

Hi Guys

Got a newbie question on installing os 15 cv r in my rs4 2. What I need to know is do I need to cur the crank and how many shimes do I install befor I put the collet and light wieght flywheel on. I'm running a two speed any help is greatly appreciated:confused:

[Killer racer]

DO NOT CUT THE CRANK!! Just put the collet on no shims and you can't use the stock flywheel.:D

[HP7]

Thanks Killer, I haven't done anything yet. I haven't had the time.
But this weekend coming up I will install the engine. Again thanks.:)

[racewithmepleez]

sup guys...just got a RACER 2,

I'm about to purchase the SIRIO .12 OUTLAW..thats right the outlaw..
is it worth it.??
do I have to do any mods to it?
oh ..i know its illegal..just wanna whop some 1/8's a$$ @ the track and them big 1/5 gas burners..

[Saboteur]

Well the outlaw isnt race legal..atleast u know that. You can still have great speed on your nitro, but you cant whoop any 1/8ths unless you have good driving skills on the track. However, you may be able to hang with them on the straights. A friend of mine as a friend with a very fast reflex. He beats everyone at his track, but when we went to race against 1/8ths onroads, he got his butt whooped. :p 1/8ths can hit higher speeds faster than 1/10ths can and can cover more ground quickly. They do about 60mph in 3secs or so. I guess those rear tires really help put the power to the ground. They also have better handling at high speeds (notice that nitro sedans are about 200mm while 1/8ths are about 275mm..so the wider the better). Not sure about the 1/5ths. The ones Ive seen only go about 35-40mph. Not sure if their any that hit above 50mph.

[Saboteur]

BTW- Notice how much power the .21 engines have over .12s and .15s. Also I dont think engines with SG crankshaft will fit in the hpi cars. Not sure if they have a clutch that will accept them. But still there are great standard crankshaft engines out there, like the mt12 comes in a standard crankshaft w/slide carb, the RB C12, rb X12, and the trinity picco .12,.15 and I think the new rear exhaust version comes in a standard crankshaft.

[SixVi6]

yeah I realized how much mroe power .21's have over .15's and .12 and I solved that problem with my spare parts/free RS4 2.

http://home.attbi.com/~exsells/hpi21_01.jpg

Yup thats a .21.. its not a super powerfull .21 actually its a stock Kyosho GS21r that was in my Landmax 2. probably about 1.6hp or so but its got sooo much more torque. at the moment its geared 18/44 and still cooks in acceleration better than any engine I ever had when I used to race my old RS42. ohh and its mostly stock.. its got some aluminum knuckles, RRP disk brake, and the .21. Its my beater drag car made from leftover parts and a donor thrashed RS4 that I got for free and yes it handles like crap but in a straight line it flies and whats the only reason I made it. :) I'm thinking a 2 speed with some silly gearing may be in its future. I'm going to have to cut a huge hole in the top of the body to clear this heat sink though. Its a blast to run though and a fun project to bring to the LHS and scare the people that that said it would not work!

John

[PCC]

I seriously doubt if the chassis will hold up to that kind of power. A friend used to run a non-Turbo X12 in his NRS4-2 and he was going through dogbones like they were going out of style.

BTW, my brother and I used to go out and drive his MRX3 at a local parking lot for kicks. That thing is insanely fast! At one point I was driving and trying to impress a friend by sliding it, full throttle, a few feet past him. Figuring that opening up full throttle half way through a turn with a RB Concepts C4 would do the trick, I punch it and the car hunkered down, tightened its line, and took off like a bat out of hell! I missed my mark by almost 15 feet!

[SixVi6]

oh yeah.. I don't doubt fo a minute that the car won't last long with this kind of power but heck its just for kicks and I got it for nothing.. the only money I spent was on some rear arms and the gas tank. When the chassis expodes a friend of mine wants to buy the leftovers for his NRS4 2. I'm hoping the 18/44 gearing will save it a bit from any hard driveline shocks but with the way it moves I don't think its going to last. I run my landmax 2 for real reliable and durable parking lot blasting. this .21 NRS4 2 sure is a blast to walk up to the RC counter at the LHS with though. just to see their expressions.. :eek: lol!

John

[Saboteur]

PCC, tell your friend to upgrade to CVDs. I think that might solve his problem.

[PCC]

Let's just say that at 14 years old, he couldn't afford it (more like his mom wouldn't buy them for him). His grandfather bought him a used V-One R so that is what he runs now.

[Saboteur]

Awesome. Well for sure I know he wont be tearing things apart with that ride.:) BTW what he running in the v-one-r?

[PCC]

The X12 from the NRS4.

[raindrops89]

2 words, Buggy Conversion
Many of You all have seen this: you can find it in the nitro forum.

[kakolitoy]

Well set up RS4 w/serpent, and Kyosho v one r parts

[kakolitoy]

I hope this car will perform good in the challenge. I hav not driven this car in three years. This was my first on road kit. I was not satisfied and bought a serpent impulse pro, impact, vector,and Veteq.

Some modifications and kept it almost stock for the challenge.

Powered by: Novamega SX12

[Saboteur]

Cool ride. Is that a novamega sx12 SE? BTW where is the exhaust pipe? :) I ran my ride against other brands of rc's before, however with the m16 I wasnt fast enough to keep up with em during drag racing or down the straights on the track. I may just get a fantom later for sport use.

http://thercfinatic11203.tripod.com

[kakolitoy]

[QUOTE]Originally posted by Saboteur
[B]Cool ride. Is that a novamega sx12 SE? BTW where is the exhaust pipe? :)


No its a re, its a rear exhaust. This motor is tremendously fast but it heats up right away. The temp of this motor will go 280 f. In two min.


I am thinking to put my paris ring pipe, or my Rb polished pipe.

I might change my motor and go back to my trusted Novarossi RS12.

[Saboteur]

Ahh IC. Yeah I do like the power and performance of the rs12. BTW do you know if it comes with a standard crankshaft?

[kakolitoy]

Originally posted by Saboteur
Ahh IC. Yeah I do like the power and performance of the rs12. BTW do you know if it comes with a standard crankshaft?


yeah it does, but I like the performance of the Sg.

Do u want the latest version of the RS12

S5 5 port. I get most of my stuff in Europe and Asia. So if u want some top end motors let me know I might be able to give u a price lower than a hobby shop.

[Saboteur]

Cool. Thanks dude. :cool:

[kakolitoy]

Originally posted by Saboteur
Cool. Thanks dude. :cool:


sure just let me know.

[maX energ]

i have a VERY fast NRS4 2 i have a little over 1000 into it..im very satitsfied!! :D i have:...
stock .15FE motor
mpi 1/10 touring header
cvec dual pipe
gs racing pressure fittings
2 speed
motor saver air filter
x patter radials pro compound
chrome 5 spoke hpi racing wheels
those garbage gray foam inserts (hey they work good lol)
side belt tensioner
all around mpi cvds
RX cover
standard eletronics...:( even thought its not RTR
wolfpack radicals blue cooling head
i want the carbon fiber y brace and upper chassis and also the fiber brake and ball diffs...any seggestions?!

[kakolitoy]

Originally posted by maX energ
i have a VERY fast NRS4 2 i have a little over 1000 into it..im very satitsfied!! :D i have:...
stock .15FE motor
mpi 1/10 touring header
cvec dual pipe
gs racing pressure fittings
2 speed
motor saver air filter
x patter radials pro compound
chrome 5 spoke hpi racing wheels
those garbage gray foam inserts (hey they work good lol)
side belt tensioner
all around mpi cvds
RX cover
standard eletronics...:( even thought its not RTR
wolfpack radicals blue cooling head
i want the carbon fiber y brace and upper chassis and also the fiber brake and ball diffs...any seggestions?!



Have u ever race this car?

If not go ahead and bring this car in the track this coming summer.

[hpi_rs4_racer2]

I just got a Racer 2 Kit, so I was told that is the best RS4 out right now? TRUE OR FALSE?

Well anyways, I am really looking forward to racing an on-road car. I have had an electric Losi truck and a RC10GT, but I considered both "backyard bashers". I have spent alot of money on this car and hope to see it win some races!!!
I wanted to know what you guys think about my setup and how competitive I should be.

Here it is:

HPI Nitro RS4 Racer 2 Kit(has the CVDs all the way around), Stock wheels (actually there hella kool), HPI Tires that are kind of a X-Pattern but I forgot exactly what they are, JR XR2 Radio System, with the JR servos and reciever, and a Trinity Picco .12 Rear Exhaust Pull Start motor(1.25 hp). Here is a list of the hop-ups I am buying tomorrow:
Heavy Duty 2 Speed Tranny, a real reciever batt pack(instead of the 4 AA's), Purple Brake Kit, Purple Aluminum Front C-Hubs, Purple ALuminum Rear Knuckle Arm Set, Purple Aluminum Front Knuckle Arm Set, Purple Threaded Shock Set, Purple Aluminum Body Mounts, Purple RPM Ballcups, Purple Aluminum Turnbuckles, another set of wheels and tires, Dodge Ram body(has a bad ass black and prple F-150 body on it now, HPI Tuned Header and Pipe Set.
Well thats all......... not bad for a 14 year olds budget huh??? LOL yea I am only 14 years old.

So you guys think it will keep up with the other touring cars?? Let me know what you think on here or by email!!!

Thanks A Bunch!

Kyle

[hpi_rs4_racer2]

this is what I got from the guy I bought the motor from:

Picco/Trinity P12 .12 Picco Round Side Exhaust Engine
with Pull Starter.

will it even work with a rs4 racer 2?

[Saboteur]

hpi_rs4_racer2, if you had good driving skill and your car is dialed in, I'm sure you can do well. BTW the picco .12re doesnt come in a pull start form, only the standard exhaust and picco round port side exhaust come with a pullstart. BTW,how much did you pay for the picco .12 re? I recall seeing it for around 130. For the HPI vehicles they will only accept engines with a standard crankshaft, not a pilot/SB crankshaft. Also you will need a picco round port manifold for that engine.

[hpi_rs4_racer2]

Hey all-
Just got back from the hobby shop, and I bought a Dynamite 1000 Rx Pack. I also bought the correct charger for it. I had to get a 3 way switch to use with this so I wouldn't have to take it out of the car. I plugged everything in correctly, and for some reason the little light on the charger, will not come on telling me that it is not charging right? I also, lugged the charger directly into the battery itself and the light still didn't come on.??? PLEASE HELP!!!!

Thanks Kyle

The motor I got is a Trinity P12 .12 Picco Round Side Exhaust motor. Not a SG/cut crankshaft. So hopefully it will work!!!!!!

Bought a pipe today with header but didn't look at it closely enough and I got home and saw it was for a rear exhaust motor.

[hpi_rs4_racer2]

hey all-
me again. i was just looking at the picture of the motor I bought, and it looks like it may be a normal type of header?? not picco? from the camera angle, you can see the two bolt holes that would hold the non-picco style header on, but does the picco style mount with 2 bolts also, or did this guy lie to me about being a picco exhaust? here is the link to see the pic of the motor. PLEASE TELL ME WHAT THIS IS SO I DONT BUY THE WRONG HEADER/PIPE TOMORROW!!!!!

THANK YOU
http://**************/ws/eBayISAPI.dll?ViewItem&category=34062&item=1924868726&rd=1

Thanks, Kyle

[Saboteur]

The picco exhaust use a manifold that has an opening like a rear exhaust, however the exhaust port on the engine is the same place a standard exhaust is. Like I said before you will need a picco style round port manifold. I believe trinity makes one for it. BTW, that link didnt work. :)

[Crazy Racer]

Originally posted by maX energ
i have a VERY fast NRS4 2 i have a little over 1000 into it..im very satitsfied!! :D i have:...
stock .15FE motor
mpi 1/10 touring header
cvec dual pipe
gs racing pressure fittings
2 speed
motor saver air filter
x patter radials pro compound
chrome 5 spoke hpi racing wheels
those garbage gray foam inserts (hey they work good lol)
side belt tensioner
all around mpi cvds
RX cover
standard eletronics...:( even thought its not RTR
wolfpack radicals blue cooling head
i want the carbon fiber y brace and upper chassis and also the fiber brake and ball diffs...any seggestions?!

it must not be that fast if you still have the stock plastic brake disc. On my old rs4 2 the moment i did a high speed run when i first put on my two speed my disc melted when i attempted to slow down.

fast is getting 54mph out of the 15fe using stock gear ratio that comes with the kit. If i had it clocked again with the way it is now it should hit atleast 56-57mph. Keep in mind this is with the stock gears, if i put different ones on my top speed would dramatically increase even more, but i keep it with the stock one for quick acceleration for the track.

[Saboteur]

Hitting 54mph+ with the stock .15fe?? :confused: I'd love to see a video of one doing that. With the stock gearing a hpi rs4 hits about 30-35mph. I doubt it will see speeds of over 50mph even if you changed the gearing, ported it or geared it high.

[Crazy Racer]

Originally posted by Saboteur
Hitting 54mph+ with the stock .15fe?? :confused: I'd love to see a video of one doing that. With the stock gearing a hpi rs4 hits about 30-35mph. I doubt it will see speeds of over 50mph even if you changed the gearing, ported it or geared it high.

i think i may have confused you. I meant stock gearing as in the stock gears that come with the 2speed. An FE isnt unbelievable hitting 50+ with different 2speed gearing than what comes with it.Keeping the stock 2speed gearing is impressive. It accelerates like a bat out of hell and then levels off at top speed. I havent confirmed 54+ yet but 52-53 was confirmed. Since then i further worked on the sleeve and crank as well as exhaust timings. The rs42 is just a fun project.. my time really goes into my new 705

[Saboteur]

Ahh ic. Yeah they make great project cars. I do like the serpent 705. Very durable and comes with lots of upgrades. However it is expensive. I run a Neo TNT nitro sedan btw
http://thercfinatic11203.tripod.com

[hpi_rs4_racer2]

Hey all-
I got my motor in and all, but for some reason my flywheel loosens up alot? I use locktite on all of the bolts that go on the crank and all, but it still loosens up? When I take it apart everything looks fine, but the little gold colored ring that gradually gets smaller, is pushed in the flywheel a little bit more than it is when I put everything back together??? Does anyone have this problem? ANyone know what it could be or how to fix it? Any help would be greatly appreciated!
Thanks, Kyle

[HighPerformance]

Hi i have Rs4 2 and it has a a decent amount of upgrades but what i wanna know is what is a great engine to replace the .15 fe ?

[PCC]

Originally posted by hpi_rs4_racer2
ANyone know what it could be or how to fix it? Any help would be greatly appreciated!

First off, buy a new collet set. When you install it, make sure you use at least one of the black washers between the collet and the engine. When you installe the collet, hold the crank with one hand and push the collet on with all your strenght with the other. Then you install the flywheel and the pilot shaft. When tightening the pilot shaft, use a good quality wrench (I use an in-line screwdriver-style 8mm socket that is normally used to swap glowplugs out on my engines with) and grab the flywheel with a pair of channel-locks and tighten away. You'll know you've overdone it when the crank snaps off ;)

[hpi_rs4_racer2]

hy thanks ppc! ill give it a try! i should use loctite on all of it right? (I HAVE BEEN). what does a new collet set cost?

thanks, kyle

[PCC]

Loctite is good.

The collet is only a few dollars.

[HighPerformance]

Anybody gonna help me out im still here and i still need to know ? somebody got any sugestions ?

[Crazy Racer]

Originally posted by HighPerformance
Anybody gonna help me out im still here and i still need to know ? somebody got any sugestions ?

i would get the new RB x12 5port Rody Tuned engine. It is one of the hottest .12s out there.. No one will be able to touch you...

[Saboteur]

Bashing wise yes, but for racing I doubt it. That would be after a good month or more of consistent practicing at the track. There are other .12s you can buy which are cheaper and still great enough to race with.

MT12
RB X12
Novarossi RS12
Sirio .12
Trinity/Picco XP .12
Trinity/Picco .12re

[speedydave]

O.S. .12 TR! :D

[jblaze725]

hey saboteur ive never seen or heard of those neo cars but they look pretty impressive for the price. how do they run.

[HighPerformance]

Well i want a pullstart engine is that engine your talking about does it have a pullstart i dont want to have to deal with a dang starter box i just like to be able to pull it a go because when im not racing im gonna be on my street messing with my car also so.

[speedydave]

OK then. OS .12 CVR-X! :p

[Saboteur]

I'd prefer a starter box for racing and sometimes even bashing. Sure you'd have to pay more for an engine with a non pullstart and starter box, but it will be a lot easier to start the engine even it the settings arent correct.

Jblaze, I love the Neo TNT cars. They are available at a cheap price but offer A LOT of performance. I got mine at my LHS, America's Hobby Center ( www.ahc1931.com ). I believe they still have a sale going on for all the NEO cars. You have the Neo TNT nitro sedan, 1/10th attack onroad, 1/8th saber (btw all 3 of these vehicles come with a centax clutch), and the Neo mid and rear mount motor electric sedans. I havent heard much about the electric sedan's but the Attack has been raced and won in a past NATS, and some guy from Team CRC has won with the 1/8th saber, however this race wasnt in the US. I may buy one of the electric sedan's though and see how they perform. I am the biggest NEO fan you'll ever find on this forum and I may even buy one of each car they have... LOL :D :cool:
Here is my Neo TNT http://thercfinatic11203.tripod.com
Sorry I forgot to mention the OS .12tr speedydave...lol :)

[toofast4u752]

hey i have an rs4 2 nad im wundering, does the sway bars actually help? anybody have a link to a set that fits? i was looking around and i found some but it said wide version only and another it said narrow version only how do i know which one i have? also whats the next best hop up for my car when my car has this:

threaded Aluminum shocks,two speed,gear brace, custom made aluminum upper deck and rear brace and front shock tower, it also has graphite rear shock tower, slide carb and the stock fe large hpi heatsink,front belt tensioner,aftermarket header and pipe,boost bottle, racing clutch,cvds, umm i think thats all it has right now what should be my next upgrade? i dont want to change engine untill i burn out the fe. do you think the car is raceable?

[Saboteur]

All those upgrades are worth getting for your ride except the boost bottle which doesnt improve the engines power that much. The .15FE is good to use however it will still be good to upgrade to a new engine. The OS .12cvr will be great engine upgrade; reliable and powerful.

[Witness_02]

heya

i run a highly modified rs4-2, its damn fast. at the moment its got a rb c12 in it, and its outrun o.s engines, but isnt so great against the mugens. As a racing car, its good, but not competative against topline cars unless your willing to spend alot of moneyt on it.

Hpi roll center plates
Hpi rear urethane belt
Hpi stainless steel hinge pins
Hpi carbon graphite A-arms (front and rear)
Hpi universal joints (front and rear)
Hpi black r5 wheels (front and rear)
Hpi advan a038 tires (front and rear)
Hpi carbon fibre Y brace
Hpi fibre disk brake
Hpi heavy duty 2 speed tranny
Hpi machined belt tensioner (side)
Hpi racing cluth
Hpi carbon fibre upper deck
Hpi racing fuel tank
Hpi reciever cover (orange)
Hpi front belt tensioner
Hpi green springs (hard)
Hpi black springs (medium/hard)
Hpi orange springs (medium)
Hpi white springs (soft)
Hpi header
Hpi composite tuned pipe
Hpi urethane bumper
Hpi 2 speed standard gear set
Hpi 2 speed 18/39 gear set (higher top end)
Hpi Racer 2 chassis
Hpi Lotus elise 200mm body (beat up)

Protoform Vectra 200mm (not as beat up)

Yokomo hard inserts (front and rear)

Rb concepts C12 engine (side exhaust pullstart)

Dynamite fuel filter


kinda long a$$ list, but ye its worth it.

my 0.02

richard

[sppedfeen]

Do the MIP 80803/80804 fit the RS4 3. I was told by MIP that they do not make a set for the RS4 3 yet?

[Nexus]

I'm a little confused by all of HPI's Nitro TCs.

Which model would be the direct competitor to the Associated NTC3?

[mab_man20]

Nexus: That is actually a debatable question. Some would say the RS4-3 SS while other say the rs4 racer 2. IMO the racer two is a better car than the SS, but it costs a little more to get the 2 up to speed.

If you are interested in getting the racer 2 (dont let my opinion sway you to much either way) let me know and ill sell you mine from last year with support equipment for $225. Its got just about every race worth hop-up and a custom 1/8" 6061 T6 aluminum chassis on it. You'll need some new tires, the engine is the FE (with an OS A10 carb and the big heatsink head) but if you ask around at the track it kept up with the CR-V's down the back straight.

[racewithmepleez]

quick question???

will the rs4 3 clutchbell w/ individual pinions fit the rs4 racer2?
or the ofna clutchbell and spur part number OFN35951?
i would like to run it on 18 21 t.

[toofast4u752]

My Nitro rs4 2: mi listed my hopups in a previous post:)

[josche_rs42]

hey good job on your upperdeck, i made one too but it has holes drilled. lol my switch mount was about half an inch ahead of yours and it got in the way of the steering so i had to get a smaller switch

[PCC]

Originally posted by racewithmepleez
quick question???

will the rs4 3 clutchbell w/ individual pinions fit the rs4 racer2?
or the ofna clutchbell and spur part number OFN35951?
i would like to run it on 18 21 t.
Yes, they do. The problem with the NRS4-3 clutchbell is that you cannot get smaller pinions than about 17 or 16T. With the OFNA one you can go down to about 12 or 13T. They discontinued the 21T, BTW, so if you can find one, buy two. They're pricey, though, at $10 for the bell, and $10 per pinion. No, the pinions are not compatible between the HPI and the OFNA, I tried...

[Hpiracer23]

Heres my hpi. I just picked it up for 120. Im not exactly sure the model though

[Hpiracer23]

Has 2 speed trany custom exhaust new suspension. A lot of hop ups

[toofast4u752]

well it sure looks like an rs4

1 question: whats the difference between the original rs4 and the rs4 2?

[losi4life]

Hi I just resently rebuilt my Rs4, and I would like to know what kind of glowplug the Nitro Star 15FE uses.

[PCC]

Originally posted by toofast4u752
well it sure looks like an rs4

1 question: whats the difference between the original rs4 and the rs4 2?

They revised the front suspension, mainly. The rear suspension was revised slightly. The old suspension is still used in the RS4 electric Rally.

[me43]

hey, im sure this has been asked before but
can you put a short or sg shaft engine in a RS4 because i have just bought one and when i look at the chassis there are 6 engine mounting screws and the 4 farthest from the spur gear side of the car are the ones being used

so im wondering if i use the 4 closer ones, will i be able to use a sg or short shaft engine with say a RC10GT flywheel

it looks like its possible, hope it is:D

[hd_nitro]

Heres my rs4-2 gone racer2 / carbon racer. More setup info on my car can be found Here (http://www.rc-x.org/forum/showthread.php?s=&threadid=1852&perpage=15&highlight=rs42%20racer2&pagenumber=2). Also my car handles totally different. I also have some tips on where to put shims on your car to take out a lot of slop. Ive been working with the rs4-2 for quite a while.

Chassis / Suspension Parts & extras

HPI Carbon Graphite/Fiber Parts:
CG Upper Deck
CG Uprights 10 Degree & 8 Degree Included (10 was used)
CG Suspension Arms
CG Front BulkHead
CG Front Knuckles
CG Wheel Hubs
CG Servo Mount
CF Bumper Brace
CF Front Shock Tower
CF Rear Shock Tower

Aluminum Parts
HPI Threaded Aluminum Shocks (front only so far)
HPI Red Progressives Springs in the front + White Progressives in the rear
HPI Thin Purple Wheel Nuts
HPI Purple Shock Caps
HPI Purple Cone Washers
HPI Nitro RS4 TurnBuckle Set
HPI Lightweight Flywheel
HPI Gear Brace w/ belt Tensioner
HPI Purple Front Belt-Tensioner (helps keep that long belt in check)
GPM Ball-Bearing Steering
Dubro Purple Fuel Filter

EXTRAS - These are well worth getting
MotorSaver Airfilter (First Line of Protection for your engine)
HPI Purple Receiver cover , save your investment and makes things look nice.
HPI Foam Bumper - Saves your car somewhat and helps support your bodies.
HPI Urethane Belts
HPI Fiber Disk Brake | Also the Aluminum disks might be better look into those.
Duratraxx Teflon Sealed Ball-Bearing Kit - If your bearings ever go , its a good set to get.
Team Losi Throttle Return Spring - (TRS) **
Trinity Royal Bearing Oil - Helps keep things up to par. #4051

[filipinoguy]

Can someone please tell me how fast an HPI RS4 2 RTR is out the box ?

[losi4life]

My car is a Rs4 2, what heat of glowplug does it use. Nitrostar 15fe

[bigmike216]

Try an OS 8, or an MC-59, both will work well.

[mistercrash]

Hi
Our nitro club has a new racing class this year. A HPI challenge kind of thing where you can only race HPI cars with HPI hop ups, engines, wheels and tires, etc. So this will be a good occasion to get my Racer2 out there and race it. The class rules calls for HPI 26mm rubber tires and inserts on 26mm HPI wheels. I'm used to race with foams on my Mugen MTX2 so I'm not familiar with the caracteristics of HPI rubber tires and inserts.
We race on a smooth, 2 year old parking lot. The asphalt is pressure washed and sprayed with VHT (smells like bubble gum and gives high traction). The track surface ranges between 75 and 135 degrees F.
I need to know what tire/insert combo will work best for these conditions. I went to the HPI site to see what tires and inserts they offer and thought that the B15-40 were interesting but didn't find 26mm inserts.
Can someone give me a good tire/insert combo for the conditions listed above.

Thank you

[floReS42]

Anybody here from NJ??? Where do you race/bash?

[malibu4bbl]

im working in NJ and i was jsut bashing in the parking lot where i work.

[ALJR]

any one here need a nice set of new aluminum touring car shocks?

http://www.radiocontrolzone.com/forums/showthread.php?s=&threadid=134401

i also have a micro rx:

http://www.radiocontrolzone.com/forums/showthread.php?s=&threadid=134219

[RS4 Freak]

There is really no way to tell people how to set up ur car for racing the only way to fully customize ur car is to get all of the optional parts (ie the hpi super shock set) and tune in ur car. Here is a pic of my car!

[RS4 Freak]

I would have to say setup ur car they way u like it but there are a set of foam tires that are awsome they are called Jaco. Use JAC3050 for the front tire and use JAC3240 for the rear, They will give u unbelievable handling.

[rookie12]

i wanna know if its worth payin 175 bucks for a used rs4 2 i know that would normally be a pretty good deal but the front differential sounds like its gringing the gears when i roll tests it but its got a lot of aftermarket parts in it al the other guys at tha track r runnin mugens so i want somethin cheaper to beat em down with just to make em realize they payed too much for a slow car i had a mugen at 1 time but it really sucked so i sold it and now i want a new car

[floReS42]

that would be cool, but what engine would u drop in the RS4 to beat a MUGEN? and wat other mods are neede to beat em? i need an engine right now for mine...but i don't know yet wat to get.

[rookie12]

an os .12 cvr will do just fine if u tune it right and can drive it through the turns good and get it out right cuz mugens can turn in way late for some reason without spinnin but they send the power back too fast when u get back on the throttle thats y i sold mine but most people who race mugens practice with em alot to get used to em and they have em set up really good so gettin the edge on em comin out the turns will really help i know i make it sound hard and it is but its a lot easier than it sounds but ill give u another tip with that engine dont nail the gas immediately comin out of the corner cuz u want to spin the tires as little as possible or else any car close enough that gats out with little tire spin will pass u and ull have to drive like a maniac to catch back up with em but it should only take a lap to catch up to em though

[S0ME GUY]

Originally posted by rookie12
an os .12 cvr will do just fine if u tune it right and can drive it through the turns good and get it out right cuz mugens can turn in way late for some reason without spinnin but they send the power back too fast when u get back on the throttle thats y i sold mine but most people who race mugens practice with em alot to get used to em and they have em set up really good so gettin the edge on em comin out the turns will really help i know i make it sound hard and it is but its a lot easier than it sounds but ill give u another tip with that engine dont nail the gas immediately comin out of the corner cuz u want to spin the tires as little as possible or else any car close enough that gats out with little tire spin will pass u and ull have to drive like a maniac to catch back up with em but it should only take a lap to catch up to em though

longest sentence ever!

ever heard of periods? they look like this> ....

try and use them next time you post, kinda hard to follow what your saying.

[cduna]

I have a tricked out RS4 with all the Carbon fiber goodies, threaded shocks and Cvd's etc ...I was curious thou if anyone has tried the Traxxas 2.5 mill yet in a RS4 ?

[Saboteur]

I know someone tried the TRX 2.5 in his Super Nitro. Pretty fast, good power, etc. The 2.5 crankshaft isnt really a full SG crankshaft but rather an IPS (Integrated Pilot Shaft). Its similiar to the one found on the AE .12 and .15engine. If you do buy an engine with an SG crank, check out wolfpacks flywheels availabe for the RS4's. Most RE's and SE engines do come with a standard crankshaft though; easy fitting in the RS4 vehicle. Here's a list of powerful and faster than than CVR side exhaust engines to try:

Side exhaust engines:
Fantom FR12
Novarossi CX12
Trinity/Picco .12 rcspeed
RB C12
Wasp .12SE

[floReS42]

i wonder how much power each of these engines put out.

[cduna]

Hey Saboteur

Thanks for the tip on the crankshaft the one im getting is threaded with 2 lengths .. 2.5 Threaded Crankshaft (http://www.buytraxxas.com/product_info.php?products_id=1649)

[Saboteur]

Cduna- You're welcome :)

FloReS42- You can check the stats on the engine but dont really believe em. All I know is those engines I listed are definately faster than the CVR, both in HP and RPM. Forgot to mention the Novamega SX12 SE; another powerhouse. These are all great to start with for racing. Just remember to practice driving and dial in your ride to the track, otherwise you wont be doing so well in any future races. After each lap you will get a bit faster. You can watch the fast guys as well during a race. Also dont forget to stock up on parts.

[floReS42]

i want to get a pullstart engine for about $150...what's the best engine that i could get with that price...the fastest...drop in...with no mods.

[Saboteur]

You can get at Fantom FR12 for a lil under $150. Good HP and rpm. The RB C12 is another powerful one but I think its $169.99 with p/s. Trinity/Picco .12 is also a fast one and the cheapest I believe. Everything else costs more.

[floReS42]

and with any of these engines i don't have to modify anything? just install it and that's it? i don't know anything about shafts etc. short, standard etc...do these have what the RS4 2 requires?

[PCC]

As long as you get a rotary carb standard shaft engine you'll be fine.

If you can get your hands on a Hot Bodies .12 then get it. If I'm not mistaken, they were selling for $120 with pullstart and are very similar to the FR12. I think the FR12 makes a bit more power, though. At one point you could buy a Yokomo RX12 from Ultimate Hobbies for $69. It's a virtual clone to the HB .12. I don't think they have those anymore, though.

[cduna]

I just installed the Traxxas 2.5 in my RS4 2 and I tell you its the fastest car I have ever built. With 10 or 11 tanks this motor is really just coming to life every time I run it - seems like it gets stonger every time I run it!

If you want insane horsepower for your RS4 get this and a motorsaver air filter for it works like a charm will post pics this weekend - I have a sweet 70 Mustang w/ Led headlights I made.

[malibu4bbl]

we never got the pics!!!!

[cduna]

Malibu4bbl

I do apologize for not submitting pics - Ive been swamped with homework and studying for finals . When I would much rather be toying around with my OS 21 Powered T Maxx arggghhhh. Anyhow will get around to posting the pics soon - Ive just made Rear Louvers and sprayed them today so just about finished up with the car ..

Will get them here soon !
Chris

[obnoxiusintegra]

I own both, a 2 & 3 I must say that I like how the 3 handles better than the 2. I had set both of them up the same way so I can compare them. The 3 has a header and tuned pipe along with electric start that the 2 is still stock. I accually prefer running the 3 because the last time I ran the 2 I got a pebble jammed into the front drive belt and locked up the car and I just noticed the last time I was cleaning the car the rear drive belt and diff gear are worn and I need to get a new one of those also when I go to replace the belts. I am also thinking about changing to a rear exhaust pipe so it keeps the body cleaner.

[obnoxiusintegra]

Here's a pic of the 3

[AznJunkie]

I’m looking for a new engine for my Nitro RS4. I’m currently running a Megatech M16. I want something that will have at least same amount of power, if not more. I was thinking of maybe the OS .12 CV-R or the HPI Nitro Star .12R SC.

Any input is greatly appreciated. :)

Oh and here’s a pix of me car. :)

[floReS42]

Is the RB C-12 really 200+ $$$???. I also would like to know if the OS engines are any good...Fast? bhp?

[Saboteur]

I also have an M16. Compared to an OS .12cvr they are about the same in power. If you want a fast side exhaust engine, check out the RB C12 which is about $140-$160( w/ pullstart), Trinity Picco rc speed, Fantom FR12, or Wasp .12SE (reincarnated picco rc speed with more reliability and power).

[floReS42]

saboteur, tell me where i can get a C-12 for that price...my LHS has it for $240. do you have the info? tell me where pls

[Saboteur]

$240 for a C-12? WOW, thats SERIOUSLY rediculous. They were never worth that price. You can get an RB X12 5 port here for like $209.99...LOL. Try calling Bruckner Hobbies, or visiting Ace-Hardware.com, or Stormer Hobbies.

[caseymou]

I am looking for a replacement engine for my rs4-2 and wondered exactly what is needed. I assume it will use a standard shaft engine but can the crank be cut?

[Saboteur]

You can put a side or rear exhaust in the RS4-2 but it must have a standard crankshaft. Cutting it wont be necessary. If you buy an engine with no pullstarter you need to 1) get non p/s engine mounts and 2) a slightly smaller flywheel. If you already have an upgraded flywheel, clutch system, then all you need to get is the engine. What's the current engine in you RS4-2?

[caseymou]

I currently have the 15 FE. I believe I need engine mounts, a header, and a pipe to get me going. This is all assuming that the stock clutch nut/bell assy will work on a cut shaft engine.

[PCC]

Why would you cut the crank? Most standard crank engines drop right in.

For your conversion, if you were to drop a 12CVR-X in it, you would need engine mounts. That's it. As long as you are trying to put a standard shaft engine in your car you should be fine. I would highly suggest that you replace the cast steel flywheel with a proper aluminum one and collet while you are at it. As for a good manifold, look at Dynamite's line of side-exhaust headers.

[caseymou]

I didn't choose to cut the crank. I bought a used fantom and the crank was already cut. I specificially asked the seller if it was cut and he told me it was not. He is now telling me it will work on a rs4-2. Anyone know where I can find a reasonable engine mount? It seems that since the 3 came out the 2 parts are getting scarce. I actually have an aluminum "lightweight" flywheel that came with the car when I traded for it. I would think that would work. A 2 speed would also be nice but they seem to go really high.

[AznJunkie]

Motor mount - $3.89 on towerhobbies.

http://www2.towerhobbies.com/cgi-bin/wti0001p?&I=LXN373&P=7

It's not the best looking one, but it'll do just fine.

[PCC]

Originally posted by caseymou
I didn't choose to cut the crank. I bought a used fantom and the crank was already cut. I specificially asked the seller if it was cut and he told me it was not. He is now telling me it will work on a rs4-2. Anyone know where I can find a reasonable engine mount? It seems that since the 3 came out the 2 parts are getting scarce. I actually have an aluminum "lightweight" flywheel that came with the car when I traded for it. I would think that would work. A 2 speed would also be nice but they seem to go really high. It depends on how much he cut. If he took off less than 1/8" then you should be fine. If he took off enough for it to fit a NTC3 or RC10GT then you are SOL.

Is your lightweight flywheel the pullstart or non-pullstart one? The way you tell is that the outside diameter of the flywheel is either 1.25" or 1.6" in diameter. The smaller one is for non-pullstart engines. The engine mounts that AznJunkie lists are for the pullstart engines.

[caseymou]

He said he was using it on a xxxnt. It looks like it is cut enough to fit a gt also. Oh well. Just have to find another engine. Thanks for the info on the engine mounts, just have to get the correct header. I have a trinity pipe which should work. Maybe my local contact will be able to help me out with a long standard shaft engine.

[RandyT]

A standard crankshaft can be replaced inexpensively. Just go to you LHS and ask them for a new crankshaft. Good luck.

[Toyotatogo]

*Under Construction*

HPI RS4-2 *Heavy Modified*

NSR-12S5 Engine
NRS51603 Tuned Pipe <--- backordered
RB1700-193 <---- backordered
26mm Kyosho 10 Spoke Rims
HPI Belted X-Pattern Tires , Inserts etc. <--- not ordered yet
FM XXL Novak Receiver HS-605BB Servos x 2 <--- not installed yet
1/10 Skyline Body <---- not painted

Much More To Come !!!

http://pic10.picturetrail.com/VOL320/1049490/3623660/44523719.jpg

http://pic10.picturetrail.com/VOL320/1049490/3623660/44523696.jpg

http://pic10.picturetrail.com/VOL320/1049490/3623660/44523677.jpg

http://pic10.picturetrail.com/VOL320/1049490/3623660/44523670.jpg

http://pic10.picturetrail.com/VOL320/1049490/3623660/44523665.jpg

http://pic10.picturetrail.com/VOL320/1049490/3623660/44523638.jpg

All aluminum parts were made by Wolfpack Radicals "Wolfgang"

http://www.wolfpackradicals.com/index.html

:D :D :D :D

[SN VipeR]

Originally posted by Toyotatogo

All aluminum parts were made by Wolfpack Radicals

I didn't know he made aluminum shocks and finger-type twospeeds! :confused:

[Toyotatogo]

No the shocks are from Hpi ...

oh and no thats a stock Hpi Tranny .... lol :D

[hooligan1]

that's a sweet looking rs4,i like that side belt brace,what brand is it?

[RC10T3]

Hey, I just wanted to share with all of you guys my custom NitroRS4 I built a year ago. Center Fuel tank, caster braces, and revised suspension components.

http://home.comcast.net/~rc10t3/cap_020.jpg

Hope you guys like it.

[hooligan1]

nice rs4,what engine are you gonna run?

[Manny]

Does anyone know if the suspension arms are the same for these two cars?

[RandyT]

I can tell you they're not the same part number. The RS4 2 lower arms are a part A453, while the RS4 3 is part number 85030. Many of the HPI parts such as the lower arms are close, but you'll have to check to see if the CVD or dogbone lengths are the same, and the holes might be in a different postion. Good luck.

[RS4 Freak]

I have just bought an EPIC .18 engine for my RS4 2, and it flyies right know, you should check it out.

[josche_rs42]

thats a nice rs4:)...heres mine with my custom parts

[RS4 Freak]

Nice RS4 as well did u make ur parts, and what are they made of aluminum or titanium etc.

[josche_rs42]

Nice RS4 as well did u make ur parts, and what are they made of aluminum or titanium etc.

its made of aluminium...the upper deck and shock towers are from street signs:)

[jshiigi808]

sup guys i just wanted to know what is the best engine i can buy for my rs4 2 with a pull start and doesnt cost to much.i kinda lost interest in my rc but since my car wasnt sold i want to build it up again.and i want to know what is the best header i can also use to get top end and tuned pipe to.im thinking of buying the o.s. .15cv-x again but i saw in the 2003 buyers guide that sirio sells a hop up kit for the .12 o.s. engines that you can use a turboplug and a new sleeve and piston.

[RS4 Freak]

Dude there is good engine that i am running it is the Epic .18 rotary. It is 1.7 hp @ like 37 000, and the top RPM is 39 000. It is a great engine, and at towers its there for like $150.00. Now on the header thing, i have heard a great header is the MIP header, and the CVEC tuned pipe should do the trick.

[jshiigi808]

is that engine bolt right in and any header bolts in to.

[JaG]

RS4 2 is a classic awesome car. It's got Character. Mine is 100% purple aluminum :)

[JaG]

Holey crap.. looks like Duratrax Street Force Car is a CLONE of the RS4 2!
***!!!

http://thercfinatic11203.tripod.com//sitebuildercontent/sitebuilderpictures/SF10.JPG

[ctimm]

FYI: The duratrax streetforce side belt tensioner fits my rs4 2 perfectly and looks great too.

Kudos to all your RS4 2s out there, i just got mine used from a guy here on the zone. It looks & runs great! I cant wait to start adding the mods.

I'll start with the fail safe, then a tuned exhaust for the stock 15fe, and i'd like a new heat sink for the engine.

Oh well, one step at a time. :D

[JaG]

RS4 2 is #1

My concorse car is almost ready:

[dgmorr]

Has anyone else done a big block conversion to their RS4-2? I just did one. This pic is with my Ofna Force P4 .21 engine with the stock tank. The pic was taken a week ago. Currently I have a Thunder Tiger 21BX-R engine in it. 150cc fuel tank, custom aluminum chassis, Y brace, shock towers. I'll post a couple pics when I have it running. I did all these mods but have no set up the linkage. I am trying to figure out how to link the slide carb. Anyone have ideas how to use a slide carv in the rs4? It's really tight for space.

[JaG]

NICE RS4 !!!!!!!!!

I know someone has set up that linkage. Try looking in the HPI forums.

[dgmorr]

I completed and ran my .21 RS4 over the weekend. It is wayyy to much power for the car. It accelerates very violently! The CG of the car is also pretty high. I cannot take turns at full or even half speed! It is pretty much useless on a track unless you are just gonig to drag.

[Wr95jp]

:confused:

I just bought a rs4 2 off a guy at my local track, he was new to nitro and gave up on them. The prob, i had to put a new motor on it.

i'm new to hpi's cars and this has the 2 speed on it but its got a weaird clutch
real narrow and i cant find a pic of how it goes in all i know its black and has 3 holes for settings but how do you know whats front or back?

any help on this would be great or a improved clutch that will fit.

[2mcgrath]

that is the race clutch sounds like...the lio on the clutch goes to the front..go to www.hpiracing.com to see what the different holes are for..all they do is make the clutch engage at different rpm's

[2mcgrath]

not lio i mean lip

[zmaster007]

Hi guys,

I've got an RS4 2 which is pretty much stock apart from the two speed gearbox. Just a quick question - what should upgrade next? I cant afford a new engine unfortunately, and was looking at a tuned pipe or cvds.

Can anyone help?

Cheers

[zmaster007]

Has nobody got this kit anymore?

[jshiigi808]

hey guys does anyone have a o.s. .15 cvr motor in there nrs42 cause my handling is ******. i guess it would be cause it has more power than the .15fe or maybe cause my chassie is bent. how do i get my car to handle good.

[kells81]

I just purchased a full Rolling chassis off of E-bay, its a HPI RS4-2 series I think, Anyway my neighbor also has one of these chassis and that I might buy. Both have no engines and from what he says you have to find one that bolts thread into the bottom. looking at DG Morr's car I can see thats not the only option,

I am prolly gonna strip my Nitro Stampede of its motor/radio gear to run this car. I have found it pretty much useless since getting a Rustler. Its got a pro-15 on it and am wondering if all I need is a set of odd motor mounts for this or going to have to find a factory HPI Engine? I am not really new to Nitro RC, have had a nitro Pede since '99 but my military carreer has kept me from playing till recently. any help would be great.

Comes with some extra stuff as you see, shocks tires and he says it already has the ball bearing conversion on it. Also something about a 2 speed gearbox.
Sellers description I paid $45 shipped for this
"UP FOR AUCTION IS THIS HIP RS4 4 WHEEL DRIVE TOURING CAR ROLLING CHASSIS, READY TO MAKE THAT SUPER DRIFT CAR YOU'V BEEN WAN'TING WITH IT'S FULL BALL BEARING, PURPAL ANODIZED CHASSIS IT ALSO COMES WITH 2 SPEED TRANNY EXTRA BELT, A-ARMS, CUSTOM PAINTED CORVET SHELL ( USED BUT STILL PLANTY OF USE LEFT,"
http://i9.ebayimg.com/03/i/07/78/2f/72_1.JPG

[bigphil]

I have a 200mm Nitro 2, does anyone know what length universals I should be using - 50mm i'm guessing and if the RS4 3 universals or CVDs will fit this generation?? Thanks.