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10-07-2007, 11:17 AM | #1 |
Scooby Specialist
Member#: 1199
Join Date: Apr 2000
Location: Caracas, Venezuela
Vehicle:1994 Supra+1K, 22b alike, 07STI |
What`s the CR from sti 07 USDM heads and CP drop in pistons?
As the title says
It is said that it will raise the CR, what would it be then? have anyone already calculate it? Stock sti 07 motor with cp drop in pistons Thanks DJ
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10-09-2007, 07:24 PM | #2 |
Sammo Hung
Moderator Member#: 10613
Join Date: Sep 2001
Chapter/Region:
South East
Location: N Fla / S Ga
Vehicle:2002 USDM WRX WRB |
nope..they are suppose to be the same..
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10-09-2007, 09:56 PM | #3 |
Scooby Specialist
Member#: 1199
Join Date: Apr 2000
Location: Caracas, Venezuela
Vehicle:1994 Supra+1K, 22b alike, 07STI |
the same? it can`t be as the sti 07 heads has smaller combustion chamber...
If anyone has the number please post it Thanks |
10-09-2007, 11:08 PM | #4 |
Scooby Guru
Member#: 33782
Join Date: Mar 2003
Chapter/Region:
MAIC
Location: Milton Keynes, UK
Vehicle:96 3MI Racing search FIRST, then PM!!! |
yeah, I had heard that the 07 heads had smaller combustion chamber too...I have yet to be able to cc a set of them though
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10-10-2007, 11:14 AM | #5 |
Scooby Newbie
Member#: 83435
Join Date: Mar 2005
Location: Team Crawford Performance
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Give Crawford a call, they have cc'd all the Subaru heads
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10-10-2007, 11:58 AM | #6 |
Scooby Specialist
Member#: 127670
Join Date: Sep 2006
Chapter/Region:
MAIC
Location: Lehigh Acres, FL
Vehicle:2007 HTA GT3794 Darton Sleeved |
I thought the 07's were 9.1:1. Please chime in if you have professional experience.
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