11-07-2005, 11:18 AM
I've had pretty good luck with my 2.5R in my Revo from day one. It runs strong, holds a tune pretty good and hasn't given me any overheating issues as of yet (Top Fuel 33%). I had some local police officers checking out the truck one night I was messing around in a parking lot. They radar'd my Revo when it was brand new and running a bit rich at 39mph. I'd say wait for the 2.5.R to bite the dust then get the OS18, RB or whatever you want. If your dead set on getting a different motor just use the 2.5R as a back up.