Quote:
Originally Posted by Brazilbro
having high compression will spool the 20g faster then if you where at 9.1 ish range. so i think that 16g would be really fast, probably hitting full boost at 3200rpm with the 20g at around 3600. You could always put the turbos that come stock on the 3000GT and have full boost at 2400rpm... would probably crap out though after 6k
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There is a lot of debate about whether the higher compression ratio significantly affects spool time. The short answer is, not really. The long answer is, higher compression will give you better off boost performance until you hit boost. Also the extra heat from compression causing additional pressure in the exhaust manifold to spool the turbo has to be significantly higher from a pressure ratio standpoint to make a significant difference, but that doesn't happen to that extent.