View Full Version : Twin engine trucks!!
ramstar29
05-23-2006, 07:22 AM
Hi all Im a Newbie to this forum but not a Newbie to the R/C World. I have been in R/C for about 20 years but I just got into Nitro about a year ago. I have 3 savages 2 of which are the limited edition, Traxxas sport, RC 10 GT, NTC3 nitro onroad, a tank, airplane, and helicoptor. I am building a twin engine Savage out of one of my limited trucks and wanted to know how many people on the forum own or have owned a twin engine vehicle? How much trouble they have had tuning them? and anything else you would like to add about the subject. Thanks
Ray
shadowghost1
05-23-2006, 09:19 AM
They are very easy to tune. I just tune one motor at a time, you can forget about getting them perfect. Just like electric motors the nitro motors are never the same and one will always pull a little harder than the other but you wont be able to tell. I find thats the killer issue for the twin trucks because one motor is usually over reving, just pay attention to your plugs and if you have this problem you should be able to tell.
ramstar29
05-23-2006, 11:25 AM
Thank you thats good to here that they aren't that difficult. I will post pics as I build it. My twin engine kit qwill be here today.
socalBash
05-23-2006, 05:39 PM
2x the fun :-) When they are running - people just park their rides and pick their jaws up off the floor.
Mines so big - it has driveline breakage issues - especially with the Huge Arse tires - I think i got 4 lbs of rotating mass at the end of each axle stub :-)
http://img.photobucket.com/albums/v672/socalbashn/OFNA%20Twin%20Picco%2027%20Titan/rollcage4.jpg
http://img.photobucket.com/albums/v672/socalbashn/OFNA%20Twin%20Picco%2027%20Titan/rollcage3.jpg
http://img.photobucket.com/albums/v672/socalbashn/OFNA%20Twin%20Picco%2027%20Titan/RollCage1.jpg
ramstar29
05-23-2006, 07:43 PM
Man that thing is sweet looking, and I can just imagine what you are talking about with the roar of 2 motors going, and non stop wheelieing action!! I get looks, cars slowing, and cars pulling over to ask questions over my stock limited Savage. I got my kit in about an hour ago and man am I excited, but my truck has a long way to go before it will see the road. When finished the truck will be fully equipped with nothing but the best aluminum has to offer. There wont be one plastic piece on the vehicle. How hard is it to tune your truck? Or any other problems?
Tmaxxx-nt375
05-24-2006, 05:29 PM
All you guys who make these twin engine monsters, are you custom making chassis? Let me know!
Also, is it necesary to run the exact same engines?
chrisoneal
05-24-2006, 06:15 PM
Hey Can we see some work in progress pictures of ur twin savage. Its gotta look sweet
ducati777
05-24-2006, 09:17 PM
Sure you could use different motors. See motors push against a load, in this case the truck. The load is slowing down both motors and they're both pushing against it. Doesn't matter if one motor is more powerful than the other because the limiting factor is the weight of the truck, which both motors have to fight. The only case is if one motor has a significantly lower top RPM than the other, in which case at the very upper limits of the rev range they could fight each other. But for the most part we're always speeding up and slowing down, we rarely spend much time at top speed.
ramstar29
05-24-2006, 10:17 PM
Hey Can we see some work in progress pictures of ur twin savage. Its gotta look sweet
Yes I will post pictures of my work. And I appriciate the compliment before I have started. I think it is going to look real sweet and perform as good as it will look. I will charge the batteries for my digital camera tonight so i can post pics tomorrow.
ramstar29
05-24-2006, 10:24 PM
Sure you could use different motors. See motors push against a load, in this case the truck. The load is slowing down both motors and they're both pushing against it. Doesn't matter if one motor is more powerful than the other because the limiting factor is the weight of the truck, which both motors have to fight. The only case is if one motor has a significantly lower top RPM than the other, in which case at the very upper limits of the rev range they could fight each other. But for the most part we're always speeding up and slowing down, we rarely spend much time at top speed.
Are you sure Ducati777? That is a very interesting statement you made. I would think the more powerful of the 2 motors would try to destroy the spur gear if it were metal and rip it apart if it were plastic. Or cause some type of performance problems for the slower motor.I can only imagine, I havent actually even started my truck up yet so I can only wonder but on the other hand with as much money as the kit and truck have cost me already, I dont think I would try either lol. Interesting..........
ramstar29
05-24-2006, 10:35 PM
All you guys who make these twin engine monsters, are you custom making chassis? Let me know!
Also, is it necesary to run the exact same engines?
Hey Tmaxxx, For my savage twin engine truck Im building, Hot bodies makes a kit for you already. Its a little high in price but it is something I wanted to do.(359.99 with-out tires and wheels) It comes with basically a new frame (the 2 silver side plates that hold the savage together but 2 inches longer), new fuel lines for the single but divided fuel tank, new fuel tank, screws, new throttle linkage, 2 new motors .26s, 2 motor mounts and mounting plate for both motors, 2 tuned pipes, 2 manifolds, roto starts installed with the attachment for your roto start, instructions to put it together, and I believ that is it. But to answer your question I am not building a chassis, it is already done for me. I do know of some who have.
Two Stroked
05-25-2006, 12:20 AM
..... You have two of the same engines pushing a spur gear, thats twice the power or atleast more than one....as long as both engines are running they will turn the same rpm when the clutches are engaged and will both push the spur gear, even if one isnt as strong as the other its still adding power.
http://www.mustangmods.com/ims/u/1343/3756/48260.jpg
Socal knows the twins, people just stop to check them out, most get out of the way, especially launching in the air like a buggy and outrunning anything on a strait.
ramstar29
05-25-2006, 09:19 AM
..... You have two of the same engines pushing a spur gear, thats twice the power or atleast more than one....as long as both engines are running they will turn the same rpm when the clutches are engaged and will both push the spur gear, even if one isnt as strong as the other its still adding power.
http://www.mustangmods.com/ims/u/1343/3756/48260.jpg
Socal knows the twins, people just stop to check them out, most get out of the way, especially launching in the air like a buggy and outrunning anything on a strait.
Hey 2 stroked, is that a twin titan? nice truck, thanks for the info.
Two Stroked
05-26-2006, 12:19 AM
Yup titan twin, just like SocalBash, well sorta, his has a big power advantage over my "stock" truck.
RuKind
05-26-2006, 04:07 PM
Here's another twin titan but unlike the other two this one started life as a single engine titan deluxe and was moditfied for the second engine. Fasssttt and god you got to love the sound of it.
Two Stroke - I like your smaller tires that would probably work out good.
http://i64.photobucket.com/albums/h169/RuKind2/lst2037.jpg
rhcsavage21
05-26-2006, 04:42 PM
here is my beast, but it only has one engine but has the mounts for a second. i am broke and cant afford a second :(, but soon it will have 2 :)
http://installpartycentral.com/Pics/IMG_1237small.jpg
RuKind
05-26-2006, 04:51 PM
Here's a picture of a nice looking savage for ya,
http://i64.photobucket.com/albums/h169/RuKind2/johnbigtwin.jpg
Holeshot101
05-26-2006, 06:49 PM
WOW, that is all I can say. ^^^^^^ That is rediculous!!!
kawasakirider
05-26-2006, 08:15 PM
Hey Tmaxxx, For my savage twin engine truck Im building, Hot bodies makes a kit for you already. Its a little high in price but it is something I wanted to do.(359.99 with-out tires and wheels) It comes with basically a new frame (the 2 silver side plates that hold the savage together but 2 inches longer), new fuel lines for the single but divided fuel tank, new fuel tank, screws, new throttle linkage, 2 new motors .26s, 2 motor mounts and mounting plate for both motors, 2 tuned pipes, 2 manifolds, roto starts installed with the attachment for your roto start, instructions to put it together, and I believ that is it. But to answer your question I am not building a chassis, it is already done for me. I do know of some who have.
WAIT WAIT WAIT WAIT WAIT, you're getting the truckzilla kit aren't you :eek: . That will suck they suck at turning top speed is crap and apparently wont wheelie if yoo want a decent twin sav it would have to be similar to the pic of the silver and blue one someone posted near the bottom of the page.
chupacabra67
05-26-2006, 09:58 PM
Here's a picture of a nice looking savage for ya,
http://i64.photobucket.com/albums/h169/RuKind2/johnbigtwin.jpg
sweet! :eek:
chupacabra67
05-26-2006, 10:31 PM
GTX2, Twin Titan, or Giga Crusher DF. I'm going with a twin engine but wich one is overall a better deal?
ramstar29
05-27-2006, 08:45 PM
WAIT WAIT WAIT WAIT WAIT, you're getting the truckzilla kit aren't you :eek: . That will suck they suck at turning top speed is crap and apparently wont wheelie if yoo want a decent twin sav it would have to be similar to the pic of the silver and blue one someone posted near the bottom of the page.
Why do you think hot bodies kit sucks? My truck is going to be very simular if not better than the truck pictured(sliver and blue). Do you know what engines the silver and blue truck is using? or are you just going by looks? you know what else, I really think that is the hot bodies kit on that blue and silver truck. The kit parts look exactly like mine for the hot bodies kit. except the heads, tunned pipes, and other things are different but the platform is Hot bodies.
socalBash
05-27-2006, 09:10 PM
of those three options - the twin titan for sure. Giga Crusher is a tyco plastic toy in comparison.
Two Stroked
05-27-2006, 10:10 PM
My guess if there are any tunning problems with that conversion it would be related to the single fuel tank feeding two engines.
Did someone say my truck has small tires??? maybe a 1/2 inch narrower than stock but over an inch taller and half the weight. You need alot of tire with two engines...
RuKind
05-27-2006, 11:27 PM
My guess if there are any tunning problems with that conversion it would be related to the single fuel tank feeding two engines.
Did someone say my truck has small tires??? maybe a 1/2 inch narrower than stock but over an inch taller and half the weight. You need alot of tire with two engines...
I didn't mean small in a bad way. I take mine to the track with sometimes and the narrower (that's what I ment ro say) would probably be a better tire then the ones I have.
And yes that blue truck is the hot bodies kit. You can't run both engines off one tank, I shouldn't say CAN'T, but you wont get it tuned worth a dam. The tank shown is a split tank with seprate feeds and presure lines.
Two Stroked
05-27-2006, 11:54 PM
http://www.mustangmods.com/ims/u/1343/3756/48259.jpg
gots to have big tire at the track.........
kawasakirider
05-28-2006, 06:37 AM
Why do you think hot bodies kit sucks? My truck is going to be very simular if not better than the truck pictured(sliver and blue). Do you know what engines the silver and blue truck is using? or are you just going by looks? you know what else, I really think that is the hot bodies kit on that blue and silver truck. The kit parts look exactly like mine for the hot bodies kit. except the heads, tunned pipes, and other things are different but the platform is Hot bodies.
Read my post and then u will see y i don't like them I actually think they look GOOD but they handle like crap they are not fast and they will not wheelie it is a waste of a perfectly good chassis just get some lcg ext tvp's and some 40 series tires and it will be bigger and get a hogh powered .28 engine (not any of the hot bodys ones) and ur truck will wheelie and it will not lose any handling and it will gain speed
ramstar29
05-28-2006, 08:27 AM
My guess if there are any tunning problems with that conversion it would be related to the single fuel tank feeding two engines.
Did someone say my truck has small tires??? maybe a 1/2 inch narrower than stock but over an inch taller and half the weight. You need alot of tire with two engines...
The fuel tank that comes with the kit is divided in half.
RuKind
05-28-2006, 10:10 AM
Read my post and then u will see y i don't like them I actually think they look GOOD but they handle like crap they are not fast and they will not wheelie it is a waste of a perfectly good chassis just get some lcg ext tvp's and some 40 series tires and it will be bigger and get a hogh powered .28 engine (not any of the hot bodys ones) and ur truck will wheelie and it will not lose any handling and it will gain speed
When you grow up and can afford a twin engine toy I will maybe take your advice. I say toy because that's what it is to me. It sits on a shelf alot more than the other trucks I own, but does it look kool, yes. Does sound kool, yes. Is it fast, Yes. Do you have one, NO. Do I care what you think, NO.
kevin097
05-28-2006, 04:29 PM
do i care wat u think NO r u a smart a$$ YES do u need to shut up and play nice YES r u cockie YES
Brian23
05-28-2006, 04:40 PM
kevin who was tha directed to?
ministerOFfire
05-28-2006, 08:05 PM
of those three options - the twin titan for sure. Giga Crusher is a tyco plastic toy in comparison.
Have your built a Giga Crusher DF? :mad: ...Kyosho makes high quality plastics, the best I've seen and I have been in the hobby for over 15 years...the Giga is built like a tank and the engineering is amazing. All it needs are a few mods..(new spider diffs, shocks and some boat pipes...) The Giga is hardly a toy IMO. :cool:
kevin097
05-28-2006, 10:28 PM
to ru king he was actin all big and bad and he needed to be shown up so anyways back to the thread i really want a twin engine truck but a bit much for me
kevin
ramstar29
05-28-2006, 10:50 PM
http://forums.radiocontrolzone.com/attachment.php?attachmentid=64529&stc=1Man what a pain!!! I finally figured out how to use this picture thing. I hope I will remember in the morning. lol, anyway this is my twin I have been telling you guys about. It started out as a brand new limited Edition 3 Speed Savage and it hasn't/wont be run until completed.
RuKind
05-28-2006, 10:55 PM
It is R u Kind and I wasn't acting big and bad. I try to help people with there ideas and problems not trash there hopes of having something. This is ramstars thread and if you look all I did was try to encourage him. Not tell him his kit that he spent $300 is a piece of ****.
And what did I ever say to you, are kawasaki big brother?
kawasakirider
05-29-2006, 04:51 AM
When you grow up and can afford a twin engine toy I will maybe take your advice. I say toy because that's what it is to me. It sits on a shelf alot more than the other trucks I own, but does it look kool, yes. Does sound kool, yes. Is it fast, Yes. Do you have one, NO. Do I care what you think, NO.
Well thank you very much for your kind remarks. When i grow up and can afford it? Are you saying I am poor? I have been in the hobby since december 05 and have spent over 3 grand not bad for a 14 yr old with his own money. If I wanted a twin I would have one. FYI i wasn't being rude to the guy that has the truckzilla kit i was advising him against it because of all the bad stuff i've heard personaly from owners comparing them to other twin monsters. Now everyone has an oppinion and it is EXTREMELY rude to say all that B.S that you just said you need to grow up you ignoramus show some consideration to others and their veiws because JUST TO LET YOU KNOW SO YOU DON"T GET TO DISSAPOINTED WHEN SOMEONE ELSE TELLS U, THE UNIVERSE DOES NOT REVOLVE AROUND YOU. I REPEAT THE UNIVERSE DOES NOT REVOLVE AROUND YOU. Key words in those last two sentences NOT ;)
kawasakirider
05-29-2006, 04:55 AM
Are you a tool? YES Are you ignorant to other peoples veiws and oppinions? YES Do i care what you think? NO
kawasakirider
05-29-2006, 04:59 AM
And what did I ever say to you, are kawasaki big brother?
Well you contradict yourself, you don't like it when others mispell your user name but you can do it without any repurcussions? Well NO if you want to get all high and mighty and huff and puff coz some dude got ur name wrong I will too MY username is Kawasaki rider not kawasaki.
chupacabra67
05-29-2006, 07:40 AM
of those three options - the twin titan for sure. Giga Crusher is a tyco plastic toy in comparison.
the twin titan has a 2 speed trans compared to the gtx2 by hot bodies but I cant find the twin titan is it discontinued? where can I find One? :(
RuKind
05-29-2006, 11:33 AM
the twin titan has a 2 speed trans compared to the gtx2 by hot bodies but I cant find the twin titan is it discontinued? where can I find One? :(
Here's a link,
http://hobbyoutlets.com/ofna/ofnc3422.htm
and another
http://cgi.ebay.com/OFNA-TWIN-TITAN-R-C-RC-Nitro-Monster-Truck_W0QQitemZ6061073905QQcategoryZ44029QQrdZ1QQc mdZViewItem
socalBash
05-29-2006, 07:45 PM
Giga Crusher - fantastic piece of engineering .. LOL - and your calling me a DF .... Ya DF.
Best plastic in the world dont change the facts - that truck is just lame. Do you K car fanboys ever tire of the "Kyosho Plastic" is the world greatest .. myth perpetuation?
I can just hear the fanboy meetings now ... "Damn, this thing is slow as dung, handles like a marshmallow with wheels, looks like a 9 year old EURO Dweebs concept of a Monster Truck ... cant sell em for snot - but Damn look at that Plastic - its amazing!!!"
I dont care how long you've been playing with toys ... seems all it means is you have more experience at being a DF ???
ministerOFfire
05-29-2006, 10:36 PM
Giga Crusher - fantastic piece of engineering .. LOL - and your calling me a DF .... Ya DF.
Best plastic in the world dont change the facts - that truck is just lame. Do you K car fanboys ever tire of the "Kyosho Plastic" is the world greatest .. myth perpetuation?
I can just hear the fanboy meetings now ... "Damn, this thing is slow as dung, handles like a marshmallow with wheels, looks like a 9 year old EURO Dweebs concept of a Monster Truck ... cant sell em for snot - but Damn look at that Plastic - its amazing!!!"
I dont care how long you've been playing with toys ... seems all it means is you have more experience at being a DF ???
...once agian...have you built one? And what do you mean by calling you a DF??? I was refering to the "Dual Force" Giga Crusher...and talk about fanboy?....*points at OFNA fanboy"....lol...lets end it here...you obvioulsy are a turd.
socalBash
05-29-2006, 11:38 PM
http://www.rc411.com/reviews/kyogigcrush/04.jpg
Speaking of Turd.....
ministerOFfire
05-30-2006, 12:05 AM
...its obvious you know nothing about the truck...the "DF" Giga that is...lol...nice come back BTW, its funny (and sad) when someone has to dump on another product to make themselves feel better about themselves...put down the "pimp juice" friend...you sir, are not a pimp....lol
socalBash
05-30-2006, 12:55 AM
FORUM ADVISEMENT ..... FORUM ALERT ...... FORUM ADVISEMENT ......
If you have an opinion of an RC vehicle, but have never built it from Kit form, you are forbidden from even having - let alone - posting your own opinion of said vehicle. You will also then be summarily deemed as "knowing nothing of the TRUCK".
Regards,
FORUM Kyosho Expert
ministerOFfire
PS - Let us all remember .... independent thinking without approval of the Kyosho Fan Club's board of directors is forbidden, scary and highly unadviseable.
Dual engine trucks are unique! I think they are a neat novelty but do you know why years ago they quite making twin-engine drag cars and motorcycles? You very really if any see twin-engine racers of any kind and there is a reason why! Some very nice looking trucks here.
kawasakirider
05-31-2006, 05:42 AM
Um 46u, U are building everyone up on your theory but you fail to deliver an answer as to why there's not many 2 engine racers........ lol
rhcsavage21
05-31-2006, 07:59 AM
i love watch duel engine trucks race around with endless wheeles :D
every truck i get i will put duel engines in, i have my CST right now but i want to make a xtm x-factor duEL engine :D
but yes i must say their are some very nice trucks here!
Don’t get me wrong as I think the twin-engine trucks are really neat. But the reason you do not see 1 to 1 twin engine racers any more is that it is to hard to get to engines in sink and you all ways have one engine holding back the other. Now with 1-1 we are talking about numerous cylinder engines. I am not trying to start a flame and being these trucks only have one cylinder a piece could very well be different. If you look back particularly on drag racing they use to run twin engines till they found out you could make a single engine go faster. Just check out some history on racing.
Like I said very nice looking trucks.
ramstar29
05-31-2006, 09:42 PM
Well I would like to first say that I respect everyones opionion about twin engine vehicles, but, Here is a good question, to all the aposing people against twin engine vehicles have you ever raced a twin engine truck? or car? Let us know. I personally understand what I am getting myself into by building such a vehicle but i think they are very cool looking, the power is intense, and the sound is breath taking. I can admit I am not a patient person so this could definetly not be my only vehicle. I consider it my shelf queen as I have heard them called. It will be very pretty, with no bashing intended. I hope to never flip this truck over. (hope is the key word)
rhcsavage21
05-31-2006, 09:51 PM
well i wouldn't race it because i don't have any tracks with in 70 miles from me, lol i would keep duel engine cars or tracks away from tracks well because its more fun to tear up a construction site then a track.
two words:
no barriers :D
ramstar29
05-31-2006, 10:01 PM
Construction sites???? Hummm............. Sounds interesting. Sounds like a good place to have some fun! Thanks never thougth of a construction site.
ministerOFfire
05-31-2006, 11:47 PM
Despite what "some" people think of the Giga...here she is... :D
ministerOFfire
05-31-2006, 11:48 PM
One more.... :p
rhcsavage21
06-01-2006, 05:43 AM
one word:
sexy :P
Well I would like to first say that I respect everyones opionion about twin engine vehicles, but, Here is a good question, to all the aposing people against twin engine vehicles have you ever raced a twin engine truck? or car? Let us know. I personally understand what I am getting myself into by building such a vehicle but i think they are very cool looking, the power is intense, and the sound is breath taking. I can admit I am not a patient person so this could definetly not be my only vehicle. I consider it my shelf queen as I have heard them called. It will be very pretty, with no bashing intended. I hope to never flip this truck over. (hope is the key word)
And I agree with you on RC stuff! :D I am not knocking them like I said I think they are REALLY neat. Why are people trying to put words in my mouth that are not there? :confused:
ramstar29
06-01-2006, 10:36 PM
And I agree with you on RC stuff! :D I am not knocking them like I said I think they are REALLY neat. Why are people trying to put words in my mouth that are not there? :confused:
I apoligize if you took my comment to heart. It was not intended for any one person. I was just asking if anyone had ever put there own vehicle up against a twin engine vehilce in a flat out race. I was curious to see which one had won the race.
RuKind
06-01-2006, 10:58 PM
I've raced my twin titan w/3.5 force engines against my lst2 w/4.27 mach. The titan had the lst2 till the lst shifted into second, the titan shifted first but the lst had the better gears and won at the end. Two engines is not going to make you go a higher speed, it just gets you there faster, gearing will get you the speed.
NitroTXT1
06-02-2006, 12:53 AM
twin is nice for a basher but for racer won't do anything but give better accel lol... adds loads of weigt...but i'd love to own a twin savage
ministerOFfire
06-02-2006, 03:31 AM
twin is nice for a basher but for racer won't do anything but give better accel lol... adds loads of weigt...but i'd love to own a twin savage
...very true, a great basher and sounds pretty cool too :cool:
ramstar29
06-02-2006, 09:50 PM
I've raced my twin titan w/3.5 force engines against my lst2 w/4.27 mach. The titan had the lst2 till the lst shifted into second, the titan shifted first but the lst had the better gears and won at the end. Two engines is not going to make you go a higher speed, it just gets you there faster, gearing will get you the speed.
Not having completed my truck I fully agree with you. Thats why I decided to purchased the Savage limited. Im sure you know it comes stock with the three speed trans. So that would give me the extra gearing you are reffering to.
ramstar29
06-02-2006, 10:36 PM
twin is nice for a basher but for racer won't do anything but give better accel lol... adds loads of weigt...but i'd love to own a twin savage
It does add some weight to the vehicle, and not to mention the cost. I am over $900.00 and Im not even close to being finished. Have a look.
http://forums.radiocontrolzone.com/attachment.php?attachmentid=64618&stc=1