Originally posted by Chewdogg
Hey guys,
I'm looking at the package of my mugen P/S set for my MR12. The package says MR RS NS RR...If these engines use the same sleeve what makes the power different?..Is is carb? crank?
What they are telling you is that it "fits" any of those Nova based engines, but it has probably Mugen's port timings, so in effect if you put that sleeve into lets say a RS you are timing it under Mugen's layout, but we still have the issue of crank induction timing which could be different from engine to engine.
I had an experience rebuilding an RBX12 with a Novamega P/S set and tried it with RB's crank and the engine had more torque, when I tried it with the Novamega crank, the engine had more top end
AFM