How big can I go with valves on my Raptor?

102mm bore, 12:1 comp

Is there a big difference in power over just porting?

 

Why on the valves, and Yes on the porting.

 

Trying to get more flow than just porting!

With just porting I am at 58hp would like to be in the mid to upper 60's.

 

dont we all though

 

just out of curiousity, did you goto a dyno or is that what you think you have? and if you have the trinity 686 kit everyone else knows you are only getting around 48 hp at the wheels.

 

Actual dynojet #'s on a dyno in Shreveport, LA. with nobbie tires.

still trying to get more. I need to take the head off and I'm looking at replacing the valves if it will be worth the $200!! while it is off![img]i/expressions/face-icon-small-wink.gif[/img][img]i/expressions/face-icon-small-sad.gif[/img][img]i/expressions/face-icon-small-blush.gif[/img][img]i/expressions/face-icon-small-disgusted.gif[/img][img]i/expressions/face-icon-small-blush.gif[/img][img]i/expressions/face-icon-small-sad.gif[/img][img]i/expressions/face-icon-small-wink.gif[/img][img]i/expressions/face-icon-small-smile.gif[/img][img]i/expressions/face-icon-small-smile.gif[/img][img]i/expressions/face-icon-small-wink.gif[/img]

 

Because everyone runs with golf cart tires huh[img]i/expressions/face-icon-small-tongue.gif[/img]