It all started with this
http://www.rcuniverse.com/forum/q-50...in-matney.html
Here are some pic of the finish Model Called Viper Dog E
I use a HK 35*48-1100 KV motor with a 4 cell and 5 cell set ups. And ACP E props 9-7.5 E and 9-9E.And cut them to play with like a 9-7.5e cut to 8.5-7.5 on 5 cells was the best. Also use a Q/500 prop 9-6 with a 4 cell is was about 80 mph,only pulled about 35 amps.to the max speed I got was the 8.5-7.5e on 5 cells about 140mph pulling 75 amps.
Working with 8 prop and 2 battery set ups I can get from 80 to 140 mph