Yeah! able to shoot a vid of your monster in action?

With 18 cells, you have got plenty of power available for that motor!

yeh I will definately get round to it. I still havn't quite got the guts to let my finger drop all the way down and stay there. :p I need to lower the truck a little, at the moment it likes to go veering off course at about 3/4 throttle......

It simple screams for a g-maxx chassis!!

It's 2nd on the to do list, after cvd's (and maybe idlers...) I'd also like to get my hands on a pro-line suspension kit, it lowers the chassis quite a bit

175F after 15 minutes on a hot day is a pretty reasonable temp. A 20 or 22 pinion would be something to try and see what happens. Depending on the running conditions, it could cool things off or heat them up.

why so high?

20 or 22 tooth pinion is really high for that setup, correct?

20/72 or 22/72 is a little on the high side, depending on how/where it is driven. 18/72 should be a pretty happy place for the motor in most conditions.

what would you recommend for a e-maxx with a lehner xl3100, warrior 9920, 12 cells, 40 series bowties, with a 66 tooth spur?

i have a 14 on it now

Tht is about right. I used to run a 13 or 14 with that motor for racing. 14 or 15 is good for bashing.