Originally Posted by Wild Cherry

A lot of guys here will tell you to try a smaller pinion, add boost , timing, ect to improve the trucks acceleration.

Instead if you need more acceleration ?
Gear up a tooth ..

Whats happens when you gear down a tooth ?


Just risks more wheel spin and this can kill the
acceleration your looking for ....

However
If the traction is good a smaller pinion is smoother & coast brake improves ....
( better for infield performance)


Suggest to always test a smaller & larger pinion just to see if there is a benefit with either...




Using the Reedy Sonic 550 4.5 *

( 32p/62 spur , 12t <> 13T pinion)


*Hauls azz fast