Originally Posted by
hipwell
Thanks guys.
I bought an mr33 holder and core rc 40mm fan which also sounds like an f22 jet.
Came off at 60c on pretty much max timing. I was geared at 5.05 and the car felt great, but not quite as fast as the other guys down the straight, but I made up for it on the infield.
I could probably get away with another tooth or so on the pinion but I'll stick at 5 for now
Is this a 17.5 combo? I would drop down to 4.4-4.6 and you will see a huge difference, check temps and all the usual info. Get that motor up to 120-130 at least after a hard 6 mins. 135-140 is still ok if you want to crank it up more after that