I wouldn't go over 6psi.

 

MCX uses a head spacer for reduced compression ratio. Guess I'm really tryin to find out what kit is the most non cheesy.

 

Cheap ain't cool, and Cool AIN'T cheap! As they say.

IMO, 6psi max on STOCK machine (no head gasket, studs, springs, NOTHING).

You can go CHEAP NOW and PAY LATER. Or you can PAY NOW and do it RIGHT.

Its all in what YOU think is worth it. As a rule of thumb, HP doubles at 15psi. 6psi will give you a 40% increase in HP but cost you 60% as much as building a 15psi system. Your cost / lb boost decreases as you go up.

The biggest problem with all of the entry level to mid level turbo kits is the fuel controller. This (tuning) is what puts a bad taste in the mouth of many people about turbo kits. I bought my Aerocharger turbo kit second hand after 1 weekend from a guy because he couldn't get it running right. He wanted a bolt on a go kit. The ONLY way this is possible is to use a high end ECM / Fuel Control system like the new AEM. That adds $2k alone.

If you want bolt & go, sell your car and buy an XPT. If you like to tinker, want a new hobby, want to learn a lot and challenge yourself in something new than turbo your existing car, it can be very rewarding to conquer the challenge.

 

What Bryan said!
the biggest issue is the piston ring gaps on stock engines. More boost means higher combustion temps. At some point, the rings will grow to a point where the ends butt up against each other. With no more room to grow they wedge against the cylinder at the point where temps are highest, somewhere around TDC. When that happens ( and it does happen a lot on any kind of stock engine with too much boost) the rings will jam up and pull the ring land off the top of the piston.
That said, boost is addictive. I started at 6 psi and like buying a boat I said " this is all I need" two grand later making a 6 psi kit push 14 pounds, I'm still wondering how high I can go.

 

So I need to put pistons in it to get some real power.

 

Its for reliability.

 

I've been looking at Power Commanders fuel management. I love how it manages each cylinder seperately.

 

It only does if you upgrade to dual wide band. You can run it with separate cylinder fuel tables but without dual O2's doesn't do much good.

Powercommander, Autotune, LCD = $700+ Ridiculous for a limited capacity piggyback system IMO. Anymore, I'm really leaning toward the idea that a complete replacement aftermarket ECM is necessary for a reliable, well tuned, well performing boosted RZR.

 

I went with the Packard Performance kit. It seemed the best bang for the buck. It has the better engine management computer without breaking the bank. Its not just a fuel management system it controls timing and boost level, its closed loop so it self adjusts for altitude etc. I'm only running 4psi and got +38 rwhp on the Dyno. The kit is capable of running 25 psi so once I build the motor I can turn the boost up to make the power I want.