Originally Posted by skypilot

i haven't seen a response to post yet (i may have missed it) and if i understand what is trying to said i agree.

I've keep reading about dropping 4 teeth, or 6 teeth or whatever, it seems to me that a brushless motor, has a gear ratio that it runs best at. different brands motors have a different gear ratio IMO. at home i ran a 5.2 all the time, when i went to jonesboro i discovered that by going to a 4.7 the motor ran well but got hot, but i needed more if i was going to even think about running with Mr. Tag, so i tried a different size spur and went to a 4.23 and the motor actually ran cooler. when i came home i ran the same ratio and ran away with the races. I've used this ratio at jonesboro, med size outdoor track and hot has hell temps, I used the same ratio at SIR air conditioned indoor asphalt small track and at Fantasy World Racing track, google it for videos that show the size of track. last week i got to try version 199 after using version 198 the week before, I geared down and felt i lost all the infield rip the car had while only maintaining the same straight away speed. i geared back up, infield rip came back and straight away speed went up. what am i doing wrong or different then everyone else. or is it one of those wierd things that happens some times. thanks and looking forward to 200.