Sparrow, the motor is pretty new, so hadn't considered bearings. Definately be worth a look.
The 19t pinion felt to me as though it was a little short, getting to full throttle too quickly on the tracks we run on, which is the reason I went back to the 21t. But then it ran at a temp that Novak consider to be ideal with the 19t, and with epa down, it would have had more to give if I let it, so maybe it wouldn't have felt so short in reality?!?!
Marvin, I wasn't really referring to the gearing, I'm ok with that part of it I think, I was purely asking about the motor and how it should theoretically behave
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I figure if I can understand each component on it's own as much as possible, then that's more chance of understanding the whole system.
Thanks for the comments so far guys, think I'm gonna put the epa back to 100% where it belongs first, then try the various pinion sizes out again and see what the temp gun says. I should check the bearings out to be sure as well.
It's just confused me a little seeing very similar setups running sooo much cooler, but then if I'm running at Novaks advised ideal temp, then maybe I'm worrying too much anyway
