I need to know approximiatley what rpm a ported and piped (big fat ftz pipe) lt250r runs, preferable where max torgue and max hp are.

 

You'll probably have to do a dyno run to get an accurate answer. Every quad will perform differently depending on mods. I have no idea how many RPM's my quadracer is turning, but maybe someone else on the forum has dyno'ed their quad to give a ballpark figure.

 

RPM's..... Hum..... Okay, about how big is your thumb?