[pipeous]

I run the 2.5D and it's useable power and very smooth. top speed on 4s is pretty close to a good nitro well tuned but out of the hole it has grunt. I might try going up a tooth on the pinion, as I am running the RC8 and using the same gearing as a stock nitro. on a smaller track it is dominant but the larger track I was at on friday, I'd like more top end because the track is all about speed with high banked burms and a couple jumps you really need the speed to make...

next for me is a 2.0 to try. I know 2 guys here using the 1.5 on 3s. 4s was just silly power