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copbait73 copbait73 is offline
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Join Date: Nov 2003
Location: Chesterfield IN
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Originally Posted by turboteener View Post
I don't know where all this talk about "high compression" motors is coming from, the 81 SC has a compression ratio of 8.5:1. Not high at all. You can easily do 6 psi on that and the engine will last forever. Plus it will get much better gas mileage and have better drivability around town because it is not a 6.5 or 7.0:1 engine.

If the kit uses a Rayjay turbo you probably should look into getting something a little more modern. You can have a flange for a Garrett, KKK, Mitsubishi, BW, IHI, etc welded to the header, so you can use a much more modern turbo. It would also help you get better drivability.

An overboost switch would not be hard to wire into your system. It is not a complicated device.
I twin turbo'd a '81SC. The C.R. is actually 9.3:1 which requires a little less boost however the point is still vaid. I loved my creation. It was still responsive yet it had an alter ego once the boost guage went past 0 plus the '72 with full IROC body probably only weighed 2150#.
Old 03-08-2008, 07:02 PM
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