[jhautz]

My calculations say that the 1950/8 on 5s with 18/51 gearing is only a 37mph setup. I am planning on running 5s 95% if the time. I'm thinking that the 1950-7 sounds like a better perofmrnace setup. How much diferance in heat would there be between the 2?

WOuld a 1940/9 be worse. Its kind in between the other 2 as far as KV rateing.