Well, today we tried a few test. Ran a ground wire directly from the battery to the starter and also threw 24 volts directly at the starter. Neither really worked. We can't seem to get the motor to run cool. We're not running a thermostat so I added a restrictor plate hoping to cool it down and it still wants to run up near 220 degrees. The motor cranked fine at 190 but, anything above that it starts acting up. I'm thinking most of these issues are related to the temp. It's a 2 row radiator with a 16" 3000 cfm electric fan. This same setup was on my 500" with no issues.