Compression Ratios
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Compression Ratios
I have heard a lot of talk about how you can adjust the compression ratio of your engine for better performance. I really don't understand what the compression ratio is, if anyone knows anything about this subject and how the ratios differ between LS version to GSRs , please write so I can maybe understand it a little better. Thanks
1994 GSR
1994 GSR
I
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From: Westside til I die
Definition:
Static compression ratio is the volume above the piston at bottom dead center divided by the volume of the piston at top dead center. Here's a little picture:
Now there are many factors that affect static compression ratio. Dome/dish size of the piston, combustion chamber size, cylinder bore, stroke, deck height.
As for difference in compression ratios, here they are for integras:
LS (b18b) 9.2:1
GSR (b18c1) 10.0:1
USDM ITR (b18c5) 10.6:1
JDM ITR (b18c) 11.1:1
Static compression ratio is the volume above the piston at bottom dead center divided by the volume of the piston at top dead center. Here's a little picture:
Now there are many factors that affect static compression ratio. Dome/dish size of the piston, combustion chamber size, cylinder bore, stroke, deck height.
As for difference in compression ratios, here they are for integras:
LS (b18b) 9.2:1
GSR (b18c1) 10.0:1
USDM ITR (b18c5) 10.6:1
JDM ITR (b18c) 11.1:1
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2015 Ford Mustang GT Fastback - Ingot Silver - 6M - Performance Package - Gibson Catback, JLT CAI, FR 47lb injectors, BAMA E85 tune, Eibach Sportline, BMR wheel hop kit, UPR oil separator, Steeda shifter bushing/bracket
Team B.O.B.® - Ballaz on a Budget
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