BackFilp 360

i have a piranha 1900 7 cell my frist one i had i got five runs out of it and it heated and the positive wire shorted out i sent it to duratrax cause it was 4 days old they gave me a new one and to day i broke it in and ran it for 5 min and i smelled the melted shrink wrap and it was super hot this was it frist run why did it do this

hummbug

Sounds like you have a bad setup. Probably overgeared or something binding in your driveline. Try a smaller pinion gear.
It would help if you gave some setup data and what vehicle are you talking about.
H

BackFilp 360

ok my truck is a rustler with a 10 turn cobalt thur a traxxas lx 10 esc the gears are 84 and 18 i had a 22 in it had it still heated up on the frist battery the drrive train fells smoth no binds

everydayflyer

Well with th stock 20T gearing is what 20:87? When I had a 15 Turn double wind in mine I geared it 16:87. Sounds to me like you need to go much smaller on the pinion.

Check out this post
http://www.rcuniverse.com/forum/m_3255405/tm.htm

BackFilp 360

but this is the only battery that it does it on i have some 6 cell epic 3300s and they just get a lil warm

akm

YOU ARE WAY OVER GEARED. to properly gear a 10 turn in a rusty you would need a 8 tooth pinion. A 48 pitch 8 tooth pinion does not exist so you can not properly gear a 10 turn in a rustler. Try a 15 turn motor instead and use a 13 tooth pinion. The way to properly gear a rusty is go two teeth under the turns of the motor. With gearing that high the motor is probably junk buy now[&o].

BackFilp 360

theres no way its overed then how do they put a mamba in a rusty the motor never got super hot i put it in a t3 truck same gearing theres no way this is ture

guver

My Feedback: (325)

The lower quality battery is showing problem with the high current draw. The 3300's can get away with it. A better battery is an answer. If it is geared too high then that is another problem.

akm

Yes you are overgeared. Do some research on traxxas.com.

ford f150

gear the thing lower and protect your electrical from melting

BackFilp 360

today i ran a 1500 with 12 gauge wires it seem to run fine i put a 18 and a 87 tooth it seem to be a little cooler than most of the time