Spur Gear

[gibbons]

What size is the stock t-maxx 2.5 spur gear, looking to go up a couple of teeth and just wondering what the best one would be. I have a 2.5 with a 3.3 engine, with 18t cb. I want more acceleration and torque, any advice would bill helpfull and very much appreciated, thanks.

 

[olds97_lss]

The largest 2.5 spur I found was the stock 72T one.
http://www3.towerhobbies.com/cgi-bin/wti0001p?&I=LXJG45&P=ML

Kimbrough makes smaller ones.

 

[94stanggt]

From Kimbrough: Using a smaller tooth spur gear will give you higher speeds, and using a larger tooth spur gear will give you more torque.
So what you want is a spur gear with as many teeth as possible and a clutch bell with as few teeth. that would def make your ride have better acceleration but you will loose a bit of your top speed as a result. Remember though a tooth or so on the CB will make a bigger difference than a tooth or 2 on the spur gear.

 

[olds97_lss]

With a 3.3 and 18/72 gearing... I can't really understand why you need more torque. that thing should be a wheelie monster!

 

[gibbons]

Just mainly wanting lots of acceleration and torque, not really worried about wheelies even though it does it. Thanks for the advice everyone it is appreciated.