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Re: Difference between turbo and n/a long blocks?
Posted by Beaudreau (more from Beaudreau) on Thu, 26 Oct 2000 07:56:09
In Reply to: Difference between turbo and n/a long blocks?, ...ethan, Wed, 25 Oct 2000 20:31:45
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Compression ratio and cams, if it is a 16 valve, 8 valve will be compression ratio and probably the cam.
Sure you can substitute them, but:
A turbo motor won't be happy as an N/A, you lose over one point in compression whith a 16 valve, more with an APC 8 valve and even more with a non APC 8 valve. You can run the cheapest gas around and push the envelope for initial timing advance, but it still won't be the same as a regular N/A motor. The taller gearing of the Turbo tranny won't help any either.
You could get decent performance by turbocharging a N/A motor, but because of the higher compression ratio, you'd probably be limited to running boost somewhere between 6 to 10 psi.
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