how much boost

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11-30-2007, 10:25 PM

HeavyWeight

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how much boost

My current motor is a stock crank with forged rods and 4cc mahle pistions. how much boost can i use with a set of 72 cc heads. It would be from a supercharger with a FMIC

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11-30-2007, 10:39 PM

ChevyChad

8 sec potential, 12 sec slip

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I've got that same setup and was at 15psi with the stock 6.0L heads. I just put a set of AFR's on, so boost will probably drop a bit, but HP should go up hopefully...

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11-30-2007, 10:47 PM

HeavyWeight

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so you think i can push 16 - 18 psi with so patriot heads

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12-01-2007, 01:50 AM

ChrisUlrich

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Get it on a datalog and keep turning it up until you see stuff you don't want too.

But that's a fairly high CR you got there, no?

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12-01-2007, 09:39 AM

ChevyChad

8 sec potential, 12 sec slip

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My SCR was 9.45 with stock crank, compstar 6.125 rods, -4cc Mahle pistons, and GM 6.0L heads (these are advertised as 72cc, but they are really like 71.09 from what I have read here). Also using the GM 3-layer 6.0L gaskets.

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