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Old 03-24-2005   #7
CDeutsch
 
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Join Date: Jan 2004
Location: Ramsey, MN
Posts: 476
Re: Piston Swap

Quote:
Originally Posted by 1ViciousGSX
Where is it at now and where are trying to get it down to?
It's between 9.5:1 and 10:1. A compression test with stock cams came out with 225-230 across the board.

http://www.rosspistons.com/calculator.php

Here's the numbers I used.
Bore: 3.426
Stoke: 3.937
Head: 46
Gasket: .045
*Deck Height: .0001
Dish: -13
Num Cyl: 4

CR=9.9:1

*Deck height needs to be negative since the pistons slightly come out of the bore, but the ROSS calculator doesn't support that.

I'd like to get the static CR down to around 8:1 (8.5:1 max) so I can run more boost on pump gas.
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