How to calculate compression ratio?
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From: GARLAND, TX, usa
How to calculate compression ratio?
I have b16 block with 84 bore and 77 stroke, 0.036 head gasket, open combustion chamber to match 84 bore and 9:1 pistons. what is the formular to find Combustion Chamer Volume, Piston Dome displacement? I;m probably in the 8.
jason phan
jason phan
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Thread Starter
Junior Member
Joined: Dec 2001
Posts: 960
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From: GARLAND, TX, usa
Re: How to calculate compression ratio? (speeds)
I have the web page. As you can tell I change the bore, combustion chamber and pistons compression. I'm interested in finding Combustion Chamer Volume, Piston Dome displacement. So I can plug them in to find out my C/R.
Honda-Tech Member
Joined: Sep 2001
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From: in the LEAVES, USA
Re: How to calculate compression ratio? (Ltech)
just use the stock combustion chamber volume for whatever head you are running. Unless you get your cumbustion chambers cc'ed this is your best bet. Piston dome displacement should be on the spec sheet that came with your pistons.
Honda-Tech Member
Joined: Jun 2001
Posts: 8,120
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From: Irvine, CA, usa
Re: How to calculate compression ratio? (Ltech)
The formula is simple. Cylinder volume at BDC divided by cylinder volume at TDC. It's calculating those volumes that makes the c-speed link awsome 
USE THE LINK
USE THE LINK
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Takumi Fujiwara
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Apr 16, 2005 04:22 AM
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