Originally Posted by
Canuck
Just ordered me a 503002-C1 - 1/10 E4FS/C1 Rubber Tire Spec Electric Touring Car. It's the E4FS Rubber Conversion with (convertable) front 1 way option.
I plan on running it on a large outdoor asphalt track.
Also will have the following setup on the car:
- Mamba Max with 7700 BL motor (equivalent to 7T)
- Orion 4800 Lipo
- 110T spur 64 pitch
- Internal ratio is 2.0588
- Tires are Jaco greens (Rubberz)
My question is what size of pinion should I be using ?
Any suggestion on color springs to use ? I ordered the G4 spring set.
Also running with a Mazda 6 Blitz body.
Look forward to some help here

about a 24t pinion (for a 9.43FDR) but i would get an assortment of spurs and pinions its alot easier to find the ratios that you need with the minimum space to move the motor.
I would start with about 19lbs in the front and 17 lbs rear depending on the grip.
I have a few set ups that work very well a few pages back