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Originally Posted by kms racing  iv done a search and found a few things about the engine , what can be done to them to get decent power out of them ie. cams bodies ect , whats the best way to raise the compression ratio
can any one point me in the right direction
nick |
I've been talking to a man in South Africa who does a lot of NA tuning for these engines, the very very very most you're likely to get is ~280bhp on a full race, and that would be with Touring car cams, exhaust manifold, throttle bodies, 13:1 compression and a large amount of port work.
I've had my head gasflowed, skimmed by 1.2mm (should be close to 11.5:1) and will be running PROCAR cams (300deg duration @ standard lift for a South African race specification) as these are the only decent cams that mean I dont have to pocket the pistons, solid valve lash adjusters, double springs, throttle bodies. I should get close to 200bhp if I'm lucky, the final hike in power would be to go silly on the bottom end with madness like longer rods, stupidly high compression, and pistons machined for uber high lift cams.