Had to fix my tornado tras wouldn't shift now i swaped out the adjuster now also when i had it apart there were no bearings in the caseing and it caused my gears to wear.Now i had 39,42 the gears that were in it were 42,47 will the 39,42 make a difference

you will probably gain more bottom end with that gear combo but i am not 100% certain.

I'll have to get her running and see what happens but what is the best way to adjust the gap between the gears one the trans and motor

Going to a smaller spur gear will decrease the amount of low end power and give you an increase in the amount of top end (if the engine can provide the necessary rpm's).

The stock gear is still on the motor but i have the HPI gears but i have to get the 12mm bell for them to go on

it wont work cuz ur gears have to be 5 teeth in difference

my mistake there a 39,44

need help guys been a few years now i got back into it my car was running fine now seems to only move if i give it full throttle but then it creaps spin trans with fingers wheels don't move.Trans isn't engaugeing like it should moves freely when pushing it but when running give it throttle doesn't work then you hear like a ching ching when you rev it high thr gears move when you rev it but don't seems to be truning wheels

turns out the one way bearing spun inside the gear lucky i have two for spares.Running the vp powermaster fuel that was all i could get my hands on but this fuel is good stuff.But i don't like it is only 9% oil but i'm running a little rich