To be honest I don't know about the traxxas nitro vehicles. In comparison the 3.3ci is only really 0.20cc. So compared to a 2.1, 2.6 and 2.8 they are lacking in power.
have u thought about something like this... It's got a .28....and they are the benchmark for nitro bashing... They are nearly considered cult status
http://www3.towerhobbies.com/cgi-bin...&I=LXRUS1&P=ML