Member Introductions
All the boosted kits are 9.0 and stock is 10.6:1, 9:1 ratio should be about 133 psi, correct if I’m wrong. I recently did a compression test on my 2012 rzr with 995 Alba big bore kit and MCX turbo tuned on e-85 aluminum rods, ported head, +1 valves, ARP head studs, copper head gasket, turbo...