gearing spur gear

[rc_dan]

punch control is a setting that changes how aggressive the car acts under acceleration, so lets say there was 3 settings, 1 being, smooth acceleration off the line, 2 being, little bit faster of the line, 3 being floor it wheels spinnig and spins out of control of the line....basicly

with the ratios, go with what u got, see wat happens. on the straights u want to be at full throttle with some tracks and the gearing u have atm u wont be able to hit full thortle too fast there for u try a small pion or bigger spur, vise versa. u would stick with the spur u have and get a punch of pions

more teath on the spur slower top end faster acceleration
more teath on the pion faster top end slower acceleration

hope this helps

edit god im slow at typing... guys already covered it oops

dan

[stampede vxlboy]

thanks bogit and rich d

[stampede vxlboy]

got some pinion today but wheel spin all over and slide on the grass .pinion i got 16 /17/18/19/20/20/23/25/28/ and 86 spurs and 83 spurs

[stampede vxlboy]

spur is 76 for top end and top speed on the traxxas . i think a 83 spur or 86 spur would be better

[rc_dan]

really depends on track size you goin to run at, stick to one spur, personally the smallest one u have, then change out the pinions, like i said the aim is u want to be able to hit full throttle on the straight, u can have a really fast car but get on a small track u will never be able to hit your top speed, so smaller pinon this will make your top end less but will be faster on the track, it will make it faster out the corners, and u will be able to hit full throttle on the straight and control it nicley

i will be running my mad rat soon with a 4000kv motor, im sticking with the stock 80t spur and will get a punch of pionos for diffrent tracks

[stampede vxlboy]

ive got on the traxxas 76 spur and 23 pinion and the madrat 81 spur stock i use that and 21 pinion fast hell 4600kv = 8.5 turn . i was got to use a 9 turn in the traxxas insend of a vxl motor 10 turner

[stampede vxlboy]

i think it would be better with a bigger spur gear like a 83 or 86

[rc_dan]

spurs are like fine tuning, try them all if u like say if u use the 86t u will have a u will have a wider range of pinons witch is good, with the mad rat i would stick to the stock spur tho, i have no experience with traxxas

what u running lipo ? 2cell ?

[stampede vxlboy]

lipo torndao 3500kv and a trackpower . would you use the 83 spur cost the madrat 81 spur and a 21 pinion a lot faster 4600kv and traxxas it a 3500kv till i put my 9 turner in it tomorrow

[rc_dan]

whats your aim ? u want both of your cars to be the similar speed ? the madrat feels faster than the traxxes ?

with a bigger spur you car will go slower top end but increase acceleration

[stampede vxlboy]

i think it because of the spur gear for top end speed 76 spur on the traxxas but bigger spur will give more acceleration and speed with a 23 pinion

[rc_dan]

yer, and the kv rating on the motor makes a difference in speed to, higer the kv faster (+heat) it goes to an extent

best thing is turn to the track with your both cars bunch of pinons, try them out, the guys there will point u the right direction

[stampede vxlboy]

thanks mate

[JCJC]

There are often other factors, large spurs can be just too big to fit in, they also push the motor away (if you see what I mean) and change the balance, this can be used to adjust setup, for the madrat I would look at B4 setups for your track surface and motor size.

Have you looked at Elvo's pages, http://users.telenet.be/elvo/

[stampede vxlboy]

thanks mate its for the traxxas with the vxl esc

[jameswilkinson7]

Have you looked at Elvo's pages, http://users.telenet.be/elvo/[/quote]

Simon.. Give this a good read. It will answer a lot of your questions