Hey guys, was looking on the internet for performance cams for my vtr and didn't really find any. My bike is nearing 50k and I'm gonna pull down and refresh, plus the cam chains are making noise. I've got manual tensioners, looking for some cams and pistons to up performance, anybody have any suggestions?

 

http://www.webcamshafts.com
Web Cams GRIND NUMBER 125/109
Hardweld 55-131 $829.00
Performance profile designed to increase overall performance.
.435/.420 VALVE LIFT
288°/289° DURATION
260°/259° DURATION @ 0.050

Requires Performance Valve Spring Kit
VS-H12 $63.00

Only cam I know of still available.

 

Thanks for the link. Any experience with these?

 

Web Cams yes, many times.... this grind from this application no.

 

Look up Roger Ditchfield in England...

he owns Revolution racing. kinda the home of VTRs

 

http://www.revolutionuk.co.uk

Address: Smith Green Depot, Stoney Lane, Galgate, Nr. Lancaster, LA2 OPX

Tel: 07970 915 259

Fax: 01524 400182

Email: enquiries@revolutionuk.co.uk

 

How much performance gain can be expected from cams alone? Or maybe cams plus a +2ish overbore?

 

That really needs to be asked of a Roger Ditchfield type.
But my guess is not much over all, but more of a how and where that available power is found

 

I am going to dyno mine before and after, so I’ll be able to give some numbers. I’ll include the parts list as it sits, plus any other mods made after.