UnderDaHill

Like many people here I'm trying to get a good starting point for setting up my car. I've got the car working pretty good but can use some suggestions on rollout for a 19T and Stock on HIGH TRACTION CARPET. I'm just looking for a general range (in millimeters) that you set your rollout to. Since this information could be handy for more than just myself please try to respond as follows:

Car your using (tc3/xxxs/pro4/etc)?

Stock Motor name?

Stock Motor Rollout Min/Max?

19t Motor Name?

19t Motor Rollout Min/Max?

Anything special you do to keep from cooking your motor when using Max (aggressive) rollout.


Example:

Car: TC3

Stock Motor: Trinity Monster Horsepower 68w

Stock Rollout: 27mm/30.4mm

19t Motor: Reedy Quad 19t

19t Rollout: 27mm/29.7mm

I am using a small fan blowing on the motor endbell when using Max (aggresive) rollout.

Remember that 1 inch is 25.4 millimeters so please respond in millimeters. Also the calculation for rollout is:

[(Tire Diameter X 3.14 )/(Teeth in Spur Gear/Teeth on Pinion Gear)] / Gearbox Ratio

Gearbox Ratio for:
TC3 = 2.5
XXXS = 1.83
Pro3 = 2.25
Pro4 = 2.4375


A good place to calculate rollout is HERE.