Compression of b16a or b18c5 pistons in a b18b?
10-02-2001, 06:15 PM
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Compression of b16a or b18c5 pistons in a b18b?
Ive heard that ITR pistons in a b18b will raise compression to 11.6. Is that correct?
Does anyone know what b16a pistons will raise it to??
Does anyone know what b16a pistons will raise it to??
10-02-2001, 08:47 PM
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Re: Compression of b16a or b18c5 pistons in a b18b? (Slopoke)
I was wondering why my car wasnt making any compression, dammit slopoke give me my pistons back 
10-02-2001, 09:50 PM
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Re: Compression of b16a or b18c5 pistons in a b18b? (Slopoke)
No, it is not even close.
The CR of a B18B with a stock head, headgasket and ITR pistons works out to 10.34:1. This is due to the LS's larger combustion chambers.
The B18B has 1.8mm more stroke than a B18C, which would increase compression to 10.8:1 with a B18C5 or B16A head, 11.0:1 with a GS-R head.
USDM B16A pistons should yeild 11.1:1 with an otherwise stock B18B.
[Modified by Mycroft Holmes, 12:54 AM 10/3/2001]
The CR of a B18B with a stock head, headgasket and ITR pistons works out to 10.34:1. This is due to the LS's larger combustion chambers.
The B18B has 1.8mm more stroke than a B18C, which would increase compression to 10.8:1 with a B18C5 or B16A head, 11.0:1 with a GS-R head.
USDM B16A pistons should yeild 11.1:1 with an otherwise stock B18B.
[Modified by Mycroft Holmes, 12:54 AM 10/3/2001]
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