P.I....Over rated. Who cares

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06-08-2007, 12:00 AM

#141

silverstang1996

5th Gear Member

Join Date: Jul 2006

Location: carlisle PA

Posts: 3,007

RE: P.I....Over rated. Who cares

Quote:

ORIGINAL: incubus1275

Performance Improved. NPI cars have less of a dish in the pistons so with PI heads they make higher compression.

NPI = 9.0:1
PI = 9.3:1
NPI with PI heads = 9.6:1

A 96-98 NPI car with PI heads with a port and polish and headers will be faster than a 97 cobra 4v with cat back and gears.

i don't know about that, it sounds like you just raced on cobra and beat it, doesn't mean all can be beat. it'd be close race maybe but cobras main dissadvantage is their powerband doesn't come in till 3300rpm, gears change that a whole lot.

06-08-2007, 01:37 AM

#142

97stanger

5th Gear Member

Join Date: Dec 2005

Location: NJ

Posts: 3,769

RE: P.I....Over rated. Who cares

wow, i dont know why i just wasted 10 minutes of my life reading this post. I'm just a lousy non pi motor too. I had every bolt on you can do and i pushed out 202rwhp, through an automatic. I'm making 343rwhp through NON PI heads AND NON PI cams.