What can I do to get more horses out of my Raptor 660 without porting or getting a big bore kit? I have an HMF pipe and pro flo open air box right now, what else can I do? Thankx

 

You might want to get a cam from hot cams in rocky mountain. They help you pretty good, have a friend that weights more than me by alot, and has the exact same mods as me, but he has a cam and he always pulls away from me in 2nd.

 

150 shot of nitrous.....it works

 

rocket engine


http://www.albaaction.com/video/rocket2.wmv

 

isaw that video. that raptor was awsome. id be to scared to ride it

 

A stage one hot cam would be a good mod that wouldn't cost much.

Rocky Mountain is not the cheapest place though. Check Bob at Magnolia Yamaha. If you need a link, I can hook you up.

 

You've done the intake and the exhaust. They were your easy gains. Your next biggest gain will be a cam or big bore kit. To make any more good gains you will have to break into the engine.............or shoot it full of funny gas.