Firma blx 150 and 2050kv in Senton

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Depends on what you're wanting to do with the senton and what battery you'd want run it with.

The good:
The 2050kv motor and 150a esc would run cooler than the normal 3s system and have more torque.

The bad:
That motor/esc would add extra weight that will slightly affect handling. The 2050kv motor will be MUCH slower than stock on 3s when using the same gear. You'd have to gear up, but with the biggest pinion possible (27t, i think?), you'd still be effectively 15% lower top speed than the stock setup.

If you're careful on the throttle, you could probably up to a 4s battery and get the speed back. If you're not careful with throttle on 4s, you'd be looking at stripped diff gears, driveshafts, and spurs.

A better upgrade would be putting in a higher kv 4068 size motor, like the 2650kv surpass motor I have in my big rock that i converted from a senton. Runs on the stock esc just fine.
 
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