I have the 2.5d (1650KV) and that is where you want to be especially if you will be doing more off road running, if your rig will see more street action you could go with the 2d I think with the 1y, it is too much battery for that motor. It is not so much the performance of the motor but the whole drivetrain and if you have too much power your wheels will just spin and you will get no traction
The 1y is 48k max RPM, well within spec. If you can gear it to reasonable speed then I'd go that route. You can always use the EPA to keep it in check. Start about 70%, then go higher for more "fun". Higher RPM = higher rooster tails!
Last edited by What's_nitro?; 05.10.2008 at 12:55 AM.