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Originally Posted by Rtsbasic
Hi, I've got an 8L and Mtroniks Truck combo running in my Emaxx, and it runs nice and strong - geared 18/66, I'd estimate 35-40mph, closer to the 40 I reckon. But it has a heat problem. Its fine when the weather 35F but now its crept up to 55F upwards its coming off a run too hot for me to hold a finger on for even 2 secs.
It does this if I run in either 1st for a run, or 2nd for a run, even if I'm keeping to low speeds, like just doing a couple of small ramps on my garden. The tranny is stock except for a Robinson Racing slipper kit.
Does anyone have any suggestions on keeping the heat down? I tried gearing at 15/66 and it gets just as hot. My stock front and rear gearboxes seem to have a fair bit of resistance in them, is there a way to reduce that? I thought of putting a fan over the endbell, but its not going to cool the rotor too well is it. I also thought of getting a 7XL but I don't want to loose the top speed I'm getting now.
Cheers.
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How heavy is your e-maxx?
And, yes try 7XL on 12 cells... you can crawl after it! Guys do you care about Kv ratings or what?
Timing, how much efficiency in % you will gain on average playing with timing?
If you under 11 pounds install 9L and good heatsink. Timing will be later when overheating would be solved.
Artur
P.S. 8L and 16/66 are wrong numbers, unless you have custom diffs., spur should be 72 or 70 at least. You killing motor...