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JohnJL JohnJL is offline
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Join Date: Jan 2005
Location: Toronto, Ontario
Posts: 4,728
Thanks guys.

Yes, the cylinders are 98MM 8:1 coated JE pistons in new perfectbore cylinders. Planning on running 12-14 lbs boost. Supercharger is a twin-screw Autorotor.

Wouldnt the same principles as a N/A engine of 6.4 liter NA engine apply? Wouldnt the same principles of our NA engines apply, just with additional flow requirements? I thought our NA engines liked some crossover or at least meeting at the muffler rather than separate outlets like headers-straight-into-stingers?

Anyone put any weight to these tools...

Header sizer:

Using an effective displacement of 6.2L I get 2.25"

Exhaust sizer calculator seems to be missing from the site.
2007 911 Turbo - Not a toy
1985 911 Cab - Wife's toy
1982 911 3.2 Indiash Rot Track Supercharged track toy
1978 911 3.0 Lichtbau toy "Gretchen"
1971 911 Targa S backroad toy

Last edited by JohnJL; 07-29-2008 at 04:47 AM..
Old 07-29-2008, 01:55 AM
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