Brushless Gearing Help

[activethunderrc]

Need Help Gearing A Putnam Pro Car Customworks Rear Putnam F/e
Running A 13.5 Brushless
Run Line Is 230 To 240 Ft
Trans Is 2.40 B3
Tires Are 2.55 Silver
I Used To Put Brushed Motors On The Dyno And Figure This Out But I Cant Figure This One - Any Help At All Would Be Great Dyno Is Useless - Anyone Want A Dyno Cheep Its A Fantom -
Chris

[signman501]

Running 13.5 in a putnam edm I use 76 spur and anwhere from 60p to 65p. PRS makes these gears in 64 pitch.