[superek4]

I think u need to go drag racing not track racing, 4s with 2650kv is already over kill. I use 2700kv with 3s for races.

It's not how fast u can go it's how well u control ur car.

I think castle will be pissed if u tell them u use 5-6s on 2650kv it's only for 4s. The amp drawn killed the esc.

Ur speed n rpm is too much. No body races with this setup