Originally Posted by
gixxerman
Are any of you running a C6BBII .21 USA? Right now I'm running a WS7-2 and absolutley love it. I'm looking at getting another motor for a GOOD back-up or to replace the WS. How do they compare? Is the power band smoother, over-all power, any opinions on anything else? Would anyone recommend the WS9 instead?
Thank you in advance!!!
I'm running the usa spec and love the motor.I'm getting 12-13 min a tank in my buggy with it tuned at 225-230

I have only ever owned c5 and c6 before so i couldn't fairly compare it to a ws motor.Compared to the regular c6 the usa comes on the bottom stronger and seems to just pull from there even seems better on the top.
I run a fairly loose track and the usa in my 8 2.0 seems to be more motor then whats needed on a low bite track.So I'm getting the ws9 to put in my buggy and then use the usa in the 8t 2.0 i just got