I don't know, but I think that I have a rather unique situation. On the other hand it may not be so unique. I, personally, could be satisfied with a buggy that will run at 30 or 35 mph. In fact that's what I generally had my buggy running when I was running nitro. The standard short track setup for me was 13/46 with a Novarossi P5X. It had plenty of torque (for nitro) and it got to top speed pretty quick. That was fine and dandy when I was running in the B mains. Before I took a break from the hobby (pre-Katrina) I found myself in the A mains more and more. The guys regularly running in the A mains are hog nuts. As short as our track was, I was actually loosing time to other drivers because they had a faster engine. Besides, I'm not going through all of this trouble to wind up with a buggy that is slower than the fastest nitro buggy out there. When I was running nitro, it was not unusual for me to burn through a gallon of fuel, non stop. A testament to the reliability of the Novarossi engines. I want to be able to run as long with my electric AND be quicker and faster. What that translates to is that I don't want to have to deal with heat issues. If that is something that I won't be able to get around, then I'm going to abandon the whole thing.

I'm going to go ahead and get the 7XL. It's probably going to be the best choice, but from what I understand, I'll have to run something other than a 4S1P pack. I'll have to go to 4S2P to be able to keep up with the current demands.

OK, assuming that I go with the 7XL, do you guys have any recommendations for pinions to get to start at a speed of about 35.

BTW, will going with something like a Lehner 1930 or 1940 really make that much of a difference. I want to stick with a two pole motor for now. The only thing I've settled on is that I WILL be running a MM controller.