AXR88U

I know that these types of tests are only a guide and vary depending on cam intake timing. Just after a rough guestimate, of what you fellas with 11.5:1 are getting and with what intake timing.

I was getting roughly 190psi with 230@050 intake lobe

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Better off with not enough traction than not enough power

DJS351XD

You can't really get an idea... Mate's roller Clevo had 11.34:1 with a 270@0.050" Crane, and it had 100psi cranking pressure.

AXR88U

Your right about that, especially with that bigger cam duration difference.

I was hoping there was someone around with about the same intake duration as mine.

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Better off with not enough traction than not enough power

smally351

see if this helps
http://not2fast.wryday.com/turbo/com...pressure.shtml

AXR88U

cheers,
Thanks for that info.

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Better off with not enough traction than not enough power