Indoors you have no need for the covers . If you remove just the motor gear cover ? Can expect temperatures to drop 20 degrees as the motor will be able breath better .

Out doors would recommend the covers if you are running on a back yard track with 2 in of dust to plow .
Most outdoor tracks are better & groomed ,so I would not use the covers still .

Candrell has raced this summer outdoors on what most consider a typical outdoor event that has mass dust ect. He had no problems.



I have not raced outdoors for a couple years now . Use to race the big outdoor events all summer for many years , raced 1/8th & gas truck .


These days I like to stay near home and save money .
Competition at Trcr is so intense , so no need to travel when I can get beat at my local by factory drivers ....