Hey guys.
A short time a ago I became the owner of a 2011 XP900 with an MCX Turbo kit.
The kit in question is the 150hp Euro MCX kit.
I’m fairly well informed about the specifics of the kit, but one factor I haven’t been able to figure out are the primary clutch spring rates. Apparently the kit came with a Team Rooster weight kit and an unknown clutch kit. I’m fairly certain that the information I was given about the spring rate is incorrect, supposedly it’s 120/310. I find that hard to believe as I’ve scattered through much data on available springs and not one utv-turbo related spring has such high numbers.

What I’m looking for is basically a starting point. What spring rates are you aftermarket turbo guys utilizing?

Please be so kind to share your knowledge and/or thoughts about this.

Utah RZR Rentals