Yes on the FDR if you have a 34 dif and 17 small poulie.
Your FDR with a 13.5 motor depends on the track you are driving on
For example.
I drive on a small track(90 feet straight) and very twisty inside.
I have a FDR of 5.215 with a LRP Stock Spec and a GM Pro stock 13.5 motor.
The GM has a lot of torque but won't rev so high as a Tekin motor
If i use my GM ESC i have to gear down a bit as the GM has more timing in the software.
It all depends on track size.
cheers Roy
Originally Posted by
iPearl
wow O.o
so you saying i have. 104 Spur 35 pinion FS internal 2
104/35x2=5.9 ?
I am using that on a 6.5 atm which seem to run okay i think lots of Turque.
What do i need to change to ratio wise to make a 13.5 be happy in my chassis ?