No they won't beat a two stroke of the same cc's.... that's because 4 strokes have to work twice as hard... so you double the cc's to make up for it
Dont get me wrong the 4 strokes are nice are are the main power choice these days.for a quad these days thats the only choice you get.My brother has the 700raptor with enough in suspension and shocks to literally out run mostly any quad thru the whoops but his motor aint workin as hard a s 450s is either.
The thing that makes me laugh are the ones who think that the 4 stroke will last forever with low maintainance the 450s are race track bikes and when a top end goes it aint going to be a cheap fix vs a 2 stroke.
I still have an 85 atc 250R only done the top end once a 90 dollar job total but it still has 200 pounds of compression not bad for a bone stocker.Oh has a pipe thats it But plan on some porting right now it will give a 450 hell on hill race just depends who gets the leave.But i want a cr500 for a duner :idea: