I'm still new to all of this. I have a 2wd traxxas stampede with the xl5 brushed set up. I am wanting to go to a brushless setup and I'm looking at hobbywing ezrun max10 g2 combo with the 3665sd g3 4000kv motor. What are the thoughts on this any help is greatly appreciated
Welcome to RCT. I have a 2wd Stampede I have been a bit indecisive about upgrading. It doesn't weigh much, so it doesn't need much amperage. Stay with 2S.
You could go with the EZRUN
MAX10 G2 Combo (80A ESC + 3652 G3 Motor) here...
https://www.hobbywingdirect.com/pro...2&_sid=47d66a174&_ss=r&variant=40521989455987
With that, I would go with the 4100kv motor. I would grab the Traxxas 86t spur - part #TRA4686 and a few Robinson Racing 1/8" (3.175mm) 48p pinions ranging from 19t to 22t or so. The common speed gearing is 23t/86t pinion/spur. But this being a hotter kv motor, you might want to stay a little lower on the pinion teeth.
Or you could try this one with the 3660SL motor and 3700kv motor.
QUICRUN WP 10BL120 G2 COMBO (Sensorless)
https://www.hobbywingdirect.com/col...p-10bl120-sl-system-g2?variant=41474386886771
The 3660's have a little more torque, so they have a 5mm shaft, so you would need a 5mm pinion instead of the 1/8".
With this I would grab a 20-23 tooth pinion and the same 86t spur listed above.
Or for extra durability for either system, you could step up to 32p gearing. It would cost you a little more, but they would hold up a bit better to brushless power. The 48p gearing should be ok, but just something to consider.
If you do go with 32p gearing, you will want the Hot Racing spur/pinion setup. This setup comes with a pinion sleeve to adapt from 1/8" to 5mm. Not ideal, but they work. Or you could grab equivalent Robinson pinions.
For the 3660SL 3700kv motor, I would grab this.
https://www.amainhobbies.com/hot-racing-32p-steel-pinion-spur-gear-set-18t-58t-hraste258/p649766
Or
For the 3652 4100kv motor, I might grab this gearset.
https://www.amainhobbies.com/hot-racing-32p-steel-pinion-spur-gear-set-red-18t-60t-hraste260/p649762