Thread: GT3 RS 4.0
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      06-06-2011, 05:10 PM   #1
kyoo
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Drives: IX
Join Date: Feb 2010
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GT3 RS 4.0

Any specific reason why the flat 6 4.0L makes 500hp vs the M3's v8 4.0L?

I'm geniunely curious. Higher compression ratio, etc? Seems to run similarly spec'd otherwise, even down to the peak power, redline, etc. Just looking at the motor itself.