Originally Posted by
RedBMaster
So, I've been doing a ton of work with my 21.5t 24k in USGT. I started with a roll out of 3.9 and it was pretty dang good. I tried lower at 3.8 and my lap times dropped. So, I went the other way and the car got much faster! I ran all the way up to 4.14 and the car was still crazy fast. I have finally settles on a final ratio of 4.09.
On a side note, I tested several different high end batteries with this motor and nothing unlocked the true power of the motor like the Trinity HV Whitecarbon pack! Don't go big on motor and forget about your battery!
The 24k likes to rev and is it more of a RPM motor. I run between 4 to 4.2 on the FDR on small or mid sized indoor tracks. Timing is between 48 to 53. I tried low timing with a lower FDR but this motor prefers higher timing and a higher FDR. If you have a motor checker, try to get the max rpm and kv without a spike in amp draw as you move up on the timing. If the amp suddenly spikes as you move up another degree, you went to far.
HV will unlock more and tested it against other HV packs, they are all comparable between brands.