Pinion question on a TC3 with a mamba 5700....HELP!
 

Ok. I don't want to burn this new motor so here's what I have. I'm running GP 3300's once everything will be setup. I have the mamba 5700 and need to know what pinion sizes I can go before that motor gets 200 degrees and fries. I'm running 48 pitch with a stock spur. I know what your going to ask me is what do you want in speed and torque. I just want to go at least 40 which I know I will and not burn the motor up. I have a 21, 24, 25 pinion now but it may be too high. What size do I need to get? I really need to get a set of pinions from(14 to 24) so I can have all the sizes. If anyone is selleng that, let me know!

Thanks

start with the 21. how much space are you going to be driving in? open parking lot bashing or are you going to a track? it all depends on how much space you have. I would inverst in some smaller pinions, 16-19 may be appropriate for smaller spaces. run for 2-3 mins and check the motor temp.

small to med track. I'm thinking a 15 or 16

how long? 100 feet? the stock spur is a 72 so with a 21 the FDR is 8.57 (spur * drive ratio / pinion) which is fairly conservative so id think youll be fine starting there. I would get between a 16-21 just to be safe however.

The battery is important. I have a 19/72 combo. Tire spin is inevitable, really. 3S 5000 batt. Motor is de-tuned / retarded. Got to be haulin before you punch it.

I've got one AE Motorsports GP 3300 matched 6 cell(all 6 cell), 2 Orion Stick Pack GP 3300 packs, and hopefully a good used pack of Hurricaine 4200 matched soldered pack. I have a 16t pinion waiting at my LHS once my motor/esc comes in.

I passed up the opportunity to get a 15t pinion. I think thats too low.

I am going to swap out my ring gear next.

Getting a 19t tuesday. I'll keep ya posted