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Originally Posted by ecoli
More displacement means more HP at the same boost level/RPM, look at how much more power a 3.0l MKIV Supra can make at the same boost level on the same turbo, even with a less efficient motor. Going from a 2.0l to a 2.4l nets around 50whp on a decent sized turbo. The 2.0l is able to equal or outflow the 2.4l in higher RPMs where the 2.4l is limited to running around 8500RPMs max. So if you are building a crazy race motor and have radical cams and a tranny that work at 10,000RPMs then a 2.0l might be a better option, like for Brent.
A 2.3 has more stroke, a 2.4 has more bore, stroke and deck height. My 2.4 is really only a 2.35l also.
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I was going to refer to a v6 motor aswell, but shane's explanation pretty much sums it up. It Doesn't matter how big the damn turbo is, there will never be a replacement for displacement.
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