Gearing for DeWalt 820 motor in a Summit?

[fyrstormer]

I noticed the DeWalt 820 kit sold by Kershaw comes with a 17t pinion, 3t (or if you prefer, 21%) higher than stock. Is the 820 motor actually that much more powerful, or is it just assumed that someone upgrading the stock motor is looking for more speed and doesn't care about potential overheating? What have been other people's experiences with gearing this motor?

 

[Irishchamp]

You probably already found an answer to your question but I stumbled across your thread. from some research I've don't just related to using the Summit transmission and 820 motor 17t pinion is the sweet spot.

 

[fyrstormer]

Actually I'm still using the stock Titan 775 which I modded with sealed ceramic bearings, so the DeWalt motor is still sitting in the spare-parts box waiting for that motor to die.

Did you happen to figure out *why* 17t is the sweet spot? I'm curious.

 

[Irishchamp]

not specifically, more torque simply allows for larger pinion, it seems around 17t is good for "most" summits, much over that and things start to get hot.

Actually I'm still using the stock Titan 775 which I modded with sealed ceramic bearings, so the DeWalt motor is still sitting in the spare-parts box waiting for that motor to die.

Did you happen to figure out *why* 17t is the sweet spot? I'm curious.

 

[fyrstormer]

That's a good enough explanation for me. Thanks.