Originally Posted by Olley

Posted this in another section of the forum and was advised to come here.
sorry if this is all already answered here but it is a lot of reading...



i joined the forum some time ago, but due to circumstances have been away from all things RC since then.

i've got a TC4 which is pretty much as it came out of the box (aside from being assembled) which i've had since 2006.

i'm running a 12 double motor. and a vega v3 speed control. (old stuff i know, but it works...)

can anyone answer a few questions i have?

firstly, what is the trans ratio in the TC4? internal ratio is 2.50

what should i be looking for in regards final drive ratio? 7.20/7.50are you keeping you brushed system?

what spur and pinion is recommended? 72std 24/25

what should i aim for with the roll out? well you have all this above

and lastly, what is the best way to set up a diff correctly? fully tighten but not over done, then unscrew between 1/4 and 1/2 turn specially if your diff is a little old, but open them and wash/grease them well again (on manual they give 1/2 turn)

i would prefer slight over steer to under, and i will be using it at the WLRC track in north london, England. not for racing, just having a laugh... set up as manual and work from there

sorry if a thread like this already exists, i did have a quick search.

in advance, CHEERS!.

Olley.