What kind of speed are you guys getting?

[OptimaMan]

Hello guys, I figured I start a new thread. I just want to know what kind of speeds you guys are getting with vehicles, motors, batteries, gearing, and method of attaining speed readings. For starters, I have a couple:

Losi XXX-S Graphite +. 1515 6 turn motor geared with a 15 tooth pinion, 90 tooth spur. FDR = 10.98:1. 6 cells Sanyo ultra metal 3000 batteries. Mercedes CLK DTM body, rubber slicks. Top speed was 50.6 mph. I only have about 400-500 feet of straightaway and with this gearing, the sedan I think hit top speed within 2-3 seconds. I measured it with a Garmin Etrex GPS. This setup is actually pretty cool on the motor, controller and batteries. They were all about 140-150 degrees F.

Emaxx 12 sanyo 3300 cells in series. Lehner 1920 5 turn motor geared 15/72 which gives an FDR of 23:5 to 1 gave a top speed of 43.4 mph. Stock everything else. This setup was really burning up the electronics though. Batteries were over 200 degrees F!!! Once again, I measured speed with a GPS.

[OptimaMan]

Sorry, that's 23.5 : 1 for the emaxx. And here's the total picture of the XXX-S. BTW, Iwas going to test it with the bigger 1920 5 turn motor, but my car broke...

[HiAmplidude]

I have a fairly long and detailed list of the tests I remembered to post results for and happened to have my GPS with me at the time HERE (http://www.rcnuts.com/speedtests.htm)

[robert L.]

who makes the 1515 6 turn motor?and where did you get it?can i pruchase one online?

[OptimaMan]

The 1515 is a Lehner motor. rumrunners used to sell it but not anymore. Maybe you can special order it from fine design - but if you do, you neet to get a special adaptor plate because the motor is really small and the stock 540 mounts won't fit onto the motor. If you get this motor, just be cautious because it spins at over 9000 rpm/volt an putting too much load will burn the motor or putting more than 10 volts might blow the motor.

-OptimaMan

[bomb-proof]

54mph in e-maxx, 15-16lbs, dual Hacker XL motors, 16 cells each, geared 31/54. This was the highest I got out of it due to transmission gears and it was in 1st gear. Using GPS as well.

[NIC]

64,5 mph in a Kyosho TF-2R with 6 FAUP 1950 mAh cells and a B406L.

Speeds in the video is around 95 km/h when I go uphill. In the first run going downhill I hadn´t got the speed up (very short distance to accelerate).
The real speedtest was done away from traffic on a level road.

http://www.******.net/media.php?trick=Any&type=Video&limit=10&searchstr=TF-2&time=1068038390&search=search (www.******.net/media.php?trick=Any&type=Video&limit=10&searchstr=TF-2&time=1068038390&search=search)

NIC

[anothermbdusted]

man that thing moves how often you go through tires on that thing lol

[DualBL]

well, no real speed readings yet, but I just drove my rustler, and got out of controll (I'd guess at about high 50's- low 60's) and it got on 2 wheels, and decieded to go airborn...
went 10 ft horizontal, and 3ft vert.
right into a telophone poll :(

my 8 cell batt pack doesn't have one straight batt bar on it, and it was basicly wraped around the chassis.. (coldfusionracing chassis w/ upper deck)

the tranny was completely ripped off from the chassis (stripped all 6 holes on bottom, and broke the top 2 holes on the upper deck...
and took a huge chunk out of my body. all that, and it hit the poll on the top front. luckily no REAL damage, just got tweaked really bad.

B50 8s
8 cells
Rustler
-Too fast for streets :p

-Nick

[anothermbdusted]

i want to see a picture of that sounds like its wasted

[mtrsprt]

Totally stock Emaxx (mine is weighing 11.5lbs with batts)
12 GP cells in series

Lehner Basic XL3600
Schulze 18.97KW
14/66 gearing

1st gear 26.3mph
2nd 38.0mph

ESC and batts barely warm after running. Motor about 130*F range.

Going to try a 16T pretty soon. Done with a Garmin Geko 201 GPS (small lightweight version, great for RC speed testing)

[05h3t5ky]

I have a nearly completely stock RC10B4 (just added an RPM bumper & gear cover). I run a Lehner BASIC 5300 motor on a Schulze U-Force 75 controller. For speed I run 8 FAUP cells, and for normal running I run 6 Sub-Cs. With the 8 FAUPs and 25/81 gearing I hit 50MPH flat according to my Venom Speed Meter, and it is relatively accurate; I factored in my tire's balloonage at top speed for the input. For tires I run Pro-Line Dirt Hawg I & III's. All power wires are Dean's Wet Noodle 12 gauge, using Dean's Connectors on the batt and 3.5mm gold plugs b/w the motor and controller. Pics to come tomorrow if you guys wish to see. :D

[ElectricThunder]

::raises hand:: I wish to see! Sounds like a beast! Those lehners basics are something else! Tiny little things with the heart of a MONSTER! I gotta get me one of them....lol! :D

[mtrsprt]

FYI, I picked up my Lehner Basic XL3600 from b-p-p.com for $139.00 shipped to my door, with an extra set of gold motor/esc connectors. :)

[05h3t5ky]

Here are the pics of my beast as promised. :D Enjoy...feedback would be appreciated. :cool: Pic #1:

[05h3t5ky]

EDIT: I put up too many pics...figured I'd leave the nice, show-offy ones and get rid of this and one more to make it easier on the 56k guys around. :)

[05h3t5ky]

EDIT: I put up too many pics...figured I'd leave the nice, show-offy ones and get rid of this and one more to make it easier on the 56k guys around. :)

[05h3t5ky]

Pic #4: She's Naked!!!! :eek: :p

[05h3t5ky]

Pic #5:

[ElectricThunder]

Dude, that's a nice setup.::drool:: How much do U-forces run? (already planning to upgrade from my novak in a year...:D)

[mtrsprt]

What type of cells are those? I do not remember my B4 battery tray being able to hold 8 cells. They look smaller than a standard sub-c type cell.

What kinds of speeds are you getting? I reached 45mph with a Novak SS5800 and 7 cells in my old B4. The B4 has one of the most efficient drivetrains on the market today. It also is VERY lightweight. I would assume 55-60mph wouldn't be too hard with 8 cells and a Lehner 5300.

[ElectricThunder]

They look like double AA cells. I think they're called FAUP cells? :confused:

[DaFF]

Very nice !

DFF

[05h3t5ky]

ElectricThunder--> Thanx...I kinda like it myself. :D The Schulze U-Force 75's are running about $250 (US) before shipping, but are well worth the cost. They have excellent throttle smoothness and control, and can be hooked up to your computer using a special interface that's only another $50 (I think) to adjust EVERY SINGLE parameter....I want to get that interface to play with it a bit. :D They seem to be the most popular controller now for those with the $$$ to buy one, and as such it's kinda hard to find places that have them in stock right now since they're selling like hotcakes. I got mine here, but I'm not sure if they currently have any in stock...I had to wait about a month/month and a half for mine to get in stock and arrive at my doorstep: http://www.modelflight.com.au/lithium_ion_polymer_esc.htm

Mtrsprt--> They are 1950mAh Ni-MH cells, more commonly known as FAUP cells. They are not to be confused with AA cells...AA cells could most likely fry under the Amp draws of a geared-up brushless if ran for more than one or two speed passes. FAUPs are about the same length as the sub-C cells from pole to pole, but are 4-5mm smaller in diameter, allowing 8 of them to fit perfectly in the B4 battery tray, minus the foam spacer block. :D As for speeds, I hit 50MPH flat according to that nice VSM you can see on my servo in those pics, and I can still gear up more to get my absolute top speed...I'm guessing 55-60 isn't too out of reach either. My controller is getting mighty hot now though, along with my batt, but I plan on getting a small mini-fan to get some air flowing under that tight-fitting B4 body to help alleviate that situation. Only other thing is, the FAUP cells drop in voltage more under load than the GPs do (Since they are smaller and have a slightly lower Amp capacity), so I won't be able to push my speeds to their absolute max until I build byself a custom 8-cell GP pack that'll fit in the B4. But for now, the FAUPs work fine, and I'm near broke anyway....but I've always heard speed costs money...I guess whoever said that was right. :p

DaFF--> Thanx. :) But as for those blue pieces, those are two capacitors I wired together and hooked into my battery slot....I heard somewhere that when the power gets hooked up, they get charged instantly and sit there. If the radio temporarily loses power, they're supposed to take over providing power to the reciever and servos for that split-second loss and help reduce the risk of a glitch or a crash resulting from that. I dunno if it actually works, but it helps me feel more safe running this beastly fast setup. :p

[DaFF]

I'm sure Lipos would fit, but that's again more donugh ! I guess a 3S pack for 11.1 volt for extreme speed run. Mind you, with the Amp draw from the 5300, you'll need very high discharge Lipo and someting like at least 6/7 Amp.

So I guess, it would not be possible, because you would strain your Lipo too much.

Better off with a milder motor like a 4200 to keep the Amp draw under control if you ever want to use Lipos...

( You're posting and editing too fast for me LoL )

DFF

[Lou_]

TB-02 from Tamiya
U-Force 75
Hacker C40 L6
6 cells, 7,2V GP3300 Pusched & Matched (hopf)
final ratio gear : 69 / 34 * 2,6 = 5,276


78 km/h (on first test) (tested with Venon Speed Meter)

[05h3t5ky]

DaFF--> Lol. I'm kinda bored at the moment and procrastinating doing some summer work for school, so I have nothing better to do than watch my posts closely while I surf the new topics. :p But yea, I have been thinking about Lipo, but I just don't have the cash, and to have to buy another motor just to use them would be even more expensive....like at least $350 total for the conversion, figuring $100 for the pack, $100 for the charger, and $150 for the motor.

Lou_--> Pretty nice...I'm sure you could squeeze more speed out of that setup by gearing up a bit and adding another cell or two. Very good for the initial run though. :) How were the temps on the motor and controller?

[ElectricThunder]

ElectricThunder--> Thanx...I kinda like it myself. :D The Schulze U-Force 75's are running about $250 (US) before shipping, but are well worth the cost. They have excellent throttle smoothness and control, and can be hooked up to your computer using a special interface that's only another $50 (I think) to adjust EVERY SINGLE parameter....I want to get that interface to play with it a bit. :D They seem to be the most popular controller now for those with the $$$ to buy one, and as such it's kinda hard to find places that have them in stock right now since they're selling like hotcakes. I got mine here, but I'm not sure if they currently have any in stock...I had to wait about a month/month and a half for mine to get in stock and arrive at my doorstep: http://www.modelflight.com.au/lithium_ion_polymer_esc.htm

Thanks for the link! Seems a bit pricey for me right now, but maybe in a year if i save up enough...:D

Do you think the schulze future 18.61 would work in a car?

[05h3t5ky]

No problem on the link. But as for saving...saving would seem like a well worth it idea to me! The U-Force is absolutely great. As for the 18.61, I haven't ever dealt with one, but I'm not sure the standard version would be the best choice...I'd think the K version would be better since it has a heatsink on it as well to help dissipate excess heat (Someone with more experience with this controller please correct me if I'm wrong).

That's the 18.61K...hmmm...it doesn't seem to be on modelflight... but you can get it at http://www.finedesignrc.com/speedcontrols.asp ...only problem being that their price is a bit steep and $25 more would get ya a U-Force. :rolleyes: Maybe you can E-mail Modelflight and see if they can get you a K version for a tad more than the price they're advertising their standard version for?

Even then, neither the 18.61 nor the 18.61K have a BEC...meaning you'd have to find room to run a separate reciever battery or buy an Ultimate BEC from http://www.modelelectronicscorp.com/price-list.html#accessories ...buying a reciever batt or the UBEC would bring the total price right back up over $200 though if you don't already own one or the other.

And even still, it would depend on what motor you'd be planning on running with it...I could see running the Novak SS5800 or MAYBE a Lehner Basic 4200/5300 or similar motor on its 61A rating, but it won't be good for some over-the-top motors like the real fast Hackers. Sorry to say man, but unless I'm wrong on all this (and someone with experience with this controller please correct me if I'm wrong on it), you may end up waiting a little longer to save the extra few $$$ for the U-Force. And if it comes to that, you'd probably be happier anyway. :)

[mtrsprt]

I found my ESC (18.97KW) to be operating barely lukewarm, but that motor is sure sucking some amperage. Batts are about 130*F after running.

The 18.97 is VERY smooth, even at crawl-slow speed. No cogging whatsoever. I'm happy so far.

[05h3t5ky]

Yes, but he is talking about the 18.61 (~$170), not the 18.97 (~$300). Glad that you're having a good time with that controller though mtrsprt. :)

[mtrsprt]

Thanks :-). Cost with shipping. $362.00 :(

[ElectricThunder]

05h3t5ky- Thanks man soooo much for helpin me with this. I'm definitely gonna wait to get enough money for a Uforce and lehner 4200 or 5300. That, or I'll wait for the Castle Creations thing to come out (if and when it does come out). Time to start saving my pennies! For now my novak will have to do (it's a pretty cool lil system!).

[ElectricThunder]

Just found out that the 18.61K can handle a lehner 5300 or 4200 easily, and can be used in cars. I may go for that instead of the Uforce. I already have a Receiver pack so I won't have to get that. So many choices! AHHHH! :D

[TheSteve]

ElectricThunder - if the 18.61K is all you can afford then by all means grab it, you'll still be very happy. If its at all in the budget though the U-Force 75 is more powerful and certainly smoother/easier to drive. I think the "feature" that makes the U-Force feel so much smoother is the soft-start power delay time. I'm pretty sure the regular Schulze ESC's have it set as low as it can go(something around 66ms) the the U-Force is defaulted to 280ms.

[05h3t5ky]

ElectricThunder--> No problem man, anything I can do to help. :) And as for your choice dillemma now, I would follow what TheSteve just said: If at all possible, spend the extra few $$$ to get the U-Force....it's built in a much more mounting- and car-friendly configuration and is overall smoother (from what I hear) and better for car setups....it's basically the current top-o-the-line Car brushless controller out there. It even gives you the option of later using *GASP* Brushed motors!!! Dun dun DUUUUUN!!! :p But all jokes aside, that could come in handy if you ever race at a track that only allows brushed motors. That and the wide amount of programming options make it a tough controller to beat, even by other Schulzes. So take your time and choose wisely *COUGH*Uforce*COUGH*....as you said, you have about a year, give or take, to think about it. :D ;)

[ElectricThunder]

Thanks steve and 05hty3 (got that soooo wrong) for the input. Got plenty of time to decide what i want! Wow, i hijacked this thread so badly... :o Sorry ya'll! When i save up the money i'll get that or the uforce... Both seem good. Ok, here's your thread back...:D

[05h3t5ky]

Lol....np....but yea, we both kinda did....oops....*hands thread back to Optimaman*....sorry! :o