Originally Posted by
Xtant3150c
I have been running my 17.5 in my Pro4 at a 4.2 fdr and it has been temping from high 160's early in the day to 180's when the track temp is at it's hottest.
Do you think I am at an o.k. fdr or should I drop a tooth or 2 to bring the temp down a little?
The motor is still performing the same but just want to keep the temp on the safer side as to not cause a shorter motor life.
Track size is 60' x 60' asphalt parking lot sprayed with juice/water mix.
160-180F is fine, If the temperature changes outside the temp of the motor will change as well. If your running in the warmer part of the day you might want to consider gearing down a tooth or so.