Okay, I tried an 18t on mine today. After running a 4100mah pack (didn't time it) I was 174°F. It was only about 60°F out though.

Yea, I figured it would be no problem too. Im really surprised by the heat. I actually thought that the regular pro4 motor would be enough motor. bu that was even workse. 270+ last week on a pro4 1900 motor.

Buggy is brand new. one 6 minute heat and one 10 min main before today. New bearings throughout. That said. I did slide the motor out and check that everything was free and smooth. No issues. Very free spinning. Speed seemed pretty good. It wasnt reving out or anything. Just hitting top speed about when I had to hit the brakes at the end of the longest straight. I could have probably gotten away with one tooth less and would have tried it if it weren't for that damn stripped grub screw on the pinion. But at 18T I think I would have been wanting more top end in the fast part of the track.

Its actually not that tall. (36pmh or so) Im running a 21T on my 1700kv motor in my stock eb48 and Im coming off in the 140s. Same track.




The track was a little loose today. Lots of wheel spin, but it was no different for anyone else and they weren't any other heat issues. I actually overheated a regular Pro4 1900 motor last week in the 10 min main to the point of demagnetizing it. 270+ degrees after the main. Little sucker finished the race though. I could feel the power dropping off in the last couple laps though.

Im gonna go through the buggy again just to make sure there is nothing weird going on, but I just think its not quite enough motor.

It was pretty hot here today. 87 or so. Nothing blazing. If it cant handle that then it will have no chance in July.

I ran really well again with it. It was good hard run and I pushed it pretty hard. Definitely didn't baby it. Finished 2nd again with it. There were a bunch of other teknos out there this week. Only guy I couldn't run down was the local untouchable. Amazingly I finished on the same lap as time for the first time ever. He even commented on how good the car looked.

according to scriptasylum, at 17/44 w/1900kv, the top speed is approx 37-40mph......

Was it Cathcart ? That guy is amazing ... If you stayed on the lead lap with him you were really hauling the mail !

I to am surprised you are having heating issues running 4s with that motor when the 4300 on 2s doesn't get that hot . I was running on my practice track that is clay and has a lot of traction and only got the Pro4 HD in my SCTE to 170 after a full 10 minute run ........

Anyone have video of their buggy running a 2s setup on a track? If there are major heat issues I will stick with my standard 4S/1900 buggy setup.

What size tire are you using in your calculation? I get 34 point something mph. with that motor and gear combo ???

37-40 mph is perfect. Thats about what I typically gear for on a good size track. We have a really good size indoor track that I typically drop to 34-35 mph on.



Yea. He is stupid fast. Really good run for me. Really good. Another minute or 2 in the race and he would have probably gotten the lap on me.

I like to marshal the races he is in so I can get a close up look at how he is taking sections I am having trouble with .....

some people have a very "relating" driving style, that means neutral cruise through some of the sections.
Personally I found it very hard to do, I was taught in racing you should either on gas pedal or brake pedal.

And from the beginning, I found (my) eb48 tend to be very tail happy under braking, a lot of understeer under small acceleration, and back to oversteer when push harder. All of these are very nice, the car's very predictable and easy to drive.
Because of that, I tend to brake in the straight line, and go through the corner with little throttle, let the car kept in the understeer state and safely go through the corner.
Probably not the fastest way, I'm just taking time and learning these monsters.

4.37, and i didnt add any ballooning either.

This past weekend I tried a 2050kv T8 16/44 and it was so fast that I had to get on the breaks much sooner than the others to slow down enough for the turn at the end of the straight.....approx 40mph(scriptasylum)

To each their own I guess. I only like having enough motor to clear the biggest jump on the track comfortably.....

I am entering the battery voltage at max.....

First race was great w/a 1900 trackstar/4s geared 18t on a medium size outdoor track. I made a few changes from stock as I built it, swapped f+r sways, drilled 4 holes to 1.5 in the stock pistons, 40f/35r losi oil, and removed anti squat. also removed some droop on both ends(not sure on a #) and moved r links out 1 hole after a few laps. Still had tons of steering everywhere and planted in the rear on/off throttle.
I remember someone talking about trying some of the bigger sway bars a while back, Any feedback? There were a couple spots on the track where it felt like some stiffer bars would help.

I have that "relating" driving style, not point and shoot. A good solid year of driving 2wd has taught me how to carry speed through the turns in a neutral style. It works well for me .lol

I do the exact same thing. That guy puts down faster laps with his 4x4 short course than the rest of the field does with their ebuggys. Cool thing about him is if you just ask him he'll tell you what his line is. He is super helpful. That guy has made me a much better driver with all the advice he has given me. I wish every "fast guy" was as helpful as him.

Yea. That will give you higher numbers. Max voltage isnt realistic. I use nominal voltage. Under load the voltage drops that low or lower. Even nominal is probably too high.

Yea everyone has their own preference. Believe me. I drive one off the lower powered buggies on the track. 1700kv motor on 4s is what I was running, and now trying to make the SC motor work. I have no idea how some people can drive the 2200kv motors and hang on to them.

After 10 min, I dont even use half of the battery capacity. But whatev.... Love this buggy, just gotta get it dialed in a bit

i disagree. when cruising at top speed at WOT, the load is very low and i doubt the voltage sags very much. i think using the max charge voltage is probably closer than nominal when trying to figure speed.