Thread: C5 427 forged motor?
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Unread 09-11-2009, 12:57 PM   #84
Rich Z
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Name : Rich Zuchowski
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I was looking over the specs of the engine build again and couldn't find what the compression ratio is going to be. I think Chris said 8.5:1, if I remember correctly. That's quite a drop from the 10.5:1 of my LS6 motor. I was reading something somewhere about a person who got an engine build and the compression ratio turned out to be TOO low and negatively affected the low end and mid range torque. I know lower CR is good for forced induction, but I really don't want to lose the low end and mid range oomph and only have the power when the turbos start kicking in at around 3K rpm. The motor should be the "cake" with the turbos being the "icing" on that cake.

Yeah, sometimes I read too much. I'm sure Chris has taken this all into account, but guess I need a "Everything will be perfect, Rich, don't worry...", now and again..
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