Lightning Stadium Pro - R conversion questions

You should worry about the heat on the motor. When I had mashers 40 series on that truck, it hit 150 degrees after about 5 speed passes. I was using a 1515 2y with a fan on it. Also, the lvc was kickin in on the 5th pass. When I switched to buggy foams, I was able to do 20 speed passes before the lvc kicked in and the truck was geared higher. The motor was warm to the touch and I did not have a fan on it. The more weight your tire is, the more amps you will pull compared to a ligher tire.