Light weight pistons

Any of you guys out there have high compression pistons in your RZRs ? My RZR is gonna hit 2000 miles here in the next 2 or 3 months and I'm probably gonna give it a top end job whether it needs it or not. I figured I might go ahead and throw some 11:1 compression Wiseco pistons in it. (you can still use pump gas with 11:1 compression)

Mine are just stock

I have the 11.3 pistons. Or some thing like that. They are 11plus comp. I had the head re-worked and have larger valves, a bigger cam, and the crank was drilled, pinned, and then welded. I do have to run pump premium gas. The motor is so powerful that the stock clutch couldn't hold it. Put in a Dirty Dawg Performance clutch kit, and could lift the front tire a bit when takeing off on blacktop while the 27inch XTR mud tires were on it. One of the changeable clutch weights fell out and threw the clutch out of balance. So, it is in the clutch shop right now, and hope to have it back and installed in time for the spring ride. Dale at DDP told me that a guy needs to take the clutches out 1 to 2 times a year and blow all of the dust and dirt out of them.

Hey thanks for the info 3012red. I've heard that running 11:1 pistons and a aggressive cam is one of the best hop-ups for the money. Its around $500 for a cam and 2 pistons, which is not that bad as compared to a $500 to $800 exhaust system, which does nothing but make a bunch of noise.

Check with HRR he can probably give u the info u want. I did the holz big bore kit minus the cam but haven't gotten it back from James yet so I can't say how it runs.

much better than stock..power and dependability