I recently bought a Sidewinder v2 w/ 6900 kv 1406 series motors and decided to try it in my 2wd buggy (crazy overkill, I know). I used my Castle Link to tame everything down (no timing, 70% max power output, etc) and dropped the pinion to a size that required a microscope to put on so the gearing was VERY safe. I ran it on the track (indoor clay) and the power was actually quite managable. Fortunately, I'm paranoid and pulled it over after 6 laps. The motor hadn't broken 100 F, but the ESC was already at 165...about 1 1/2 minutes of driving.

No wiring muddled up by me, Dean's connectors 5000 mah lipo. So, really, should this combo ONLY be used for straight line drag racing? Any other thoughts besides I was crazy to try it in the first place ?

Some run the Castle motor fan on the ESC which seems to help

What sort of speed are you getting and what does the car weigh ?

Cheers

I thought about a fan but that much heat that fast was enough to keep me from experimenting any further. I was running indoor clay so never "opened it up". Weight shouldn't be an issue since it's stock trl 22 kit.

I almost wonder if turning it all down and using less throttle could increase resistence and thereby generate more heat? (grasping at straws)

I would put a fan on it. I really believe this is a top end motor . Not made for racing just speed runs. I just out one in my tc3 for drifting. Lets see how that works.

Like all esc's full throttle builds less heat

Bottom line is that the Sidewinders are marginal with the 540 4 pole motors

Hobbywing stuff (SC8 etc...) does a better job and is around the same price

Cheers

I saw that it is made for primarily speed runs, but thought it would be a good tool for working on improved throttle control on my buggy. I imagine the increased variation in throttle work could be the culprit. I don't plan to race with the combo, was just playing. But I am curious.

That does jive with what I was thinking

Thanks for the feedback.

I have a sidewinder v2 and the 3800kv motor in my B4 and my ESC is getting really hot. The motor temp is under 110 degress. Can the wires on the esc be shortened or do they have to be the stock length of a foot. LOL

If you bought new maybe send it back to Castle. I had a Sidewinder and no matter what it was crazy hot. ESC temped/thermaled on 3s in a few seconds. And on 2s it was hittin 190 fast. I thought they where junk! First Sidewinder. Always had Mamba Max, MMP, etc. Returned it and they replaced it. MUCH cooler and no issues after that.