Originally Posted by
jmkalt
Thanks. 22 tooth pinion is exactly what I've been using.
Like I said, very tight, small track, short bursts of full throttle (albeit with Current Limiter at 50%) but Throttle Endpoint in the radio turned way down (65%).
I'm thinking perhaps the Timing Boost might be the problem. It's presently set at #3 (25 degree boost). Maybe I'll back that off and/or try a smaller pinion and then turn up the Throttle EPA instead.
With lower turn motors you shouldn't need any boost. An 8.5 isn't a crazy low turn, but it has plenty of power without boost. I'd turn the boost off and increase your throttle EPA.
What speeder are you using? Although some speeders say they can run down to a 7.5 motor, it's a different ball game when the system is in a 4wd vehicle. The vehicle is heavier, there is a lot more load on the system running twice the drive train as a 2wd counterpart, and usually you're pushing a 4wd car harder.