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      12-13-2013, 04:43 PM   #59
Boss330
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Quote:
Originally Posted by solstice View Post
You also need to consider the compression ratio. The GT-R run 9:1 and peak boost around 13psi stock. The M4 runs 10.2:1 and 18 psi. Fuel self detonation is a limitation if you want to run on standard 93 octane. The M4 has a lot less room to increase combustion pressure than the GT-R. My guess is that there is little room left on the M4, maybe just enough for a symbolic boost for the comp. pack.
Which is why I said that 50% of the power increase a GT-R can achieve on std turbos should be possible on the N55... The GT-R can apparently go to 650 on std turbos, if we only consider a 50% increase of that as possible on the S55 we would be at 515hp.
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