Compression Ratio Math Check Please!
Thread Starter
Joined: Aug 2002
Posts: 2,419
Likes: 6
From: 78°14′46″N 15°27′56″E
Compression Ratio Math Check Please! Just want to confirm my compression ratio for my LQ4 build:
Stock bore/stroke/piston LQ4
243 heads milled .017
Stock .051 thickness head gasket
I'm getting 11.1:1
Can anyone confirm my math?
Thanks in advance!
Stock bore/stroke/piston LQ4
243 heads milled .017
Stock .051 thickness head gasket
I'm getting 11.1:1
Can anyone confirm my math?
Thanks in advance!
Valve relief on the pistons (like 4cc)? Do you know how far out of the hole the pistons are (deck clearance)? What size compression chambers on the heads? Is that about 60cc?
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Thread Starter
Joined: Aug 2002
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From: 78°14′46″N 15°27′56″E
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On The Tree
Joined: Sep 2011
Posts: 131
Likes: 0
From: dayton ohio
dont mean to hijack but i have the same question
heres my specs:
pistons -6cc
799 heads milled .019
cc head @ 62cc
piston to deck -.013
.075 between piston and flat of head
3.905 bore
.050 thick gasket
any help would be great
thanks in advance
heres my specs:
pistons -6cc
799 heads milled .019
cc head @ 62cc
piston to deck -.013
.075 between piston and flat of head
3.905 bore
.050 thick gasket
any help would be great
thanks in advance
On The Tree
Joined: Dec 2004
Posts: 124
Likes: 0
From: Northville, Michigan
Here is a good web site to bookmark that will calculate your compression ratio:
http://www.kb-silvolite.com/calc.php?action=comp
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http://www.kb-silvolite.com/calc.php?action=comp
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my pistons had a 6 cc dish and my heads were milled .015 and the chambers measured 62 cc i didnt measure my piston out of hole but i guessed them at .005 out of the hole i figured my compression to be just a little over 10.5 i am going to say you have around 10.6
Thread Starter
Joined: Aug 2002
Posts: 2,419
Likes: 6
From: 78°14′46″N 15°27′56″E
Here is a good web site to bookmark that will calculate your compression ratio:
http://www.kb-silvolite.com/calc.php?action=comp
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http://www.kb-silvolite.com/calc.php?action=comp
-
Thank you! I'll bookmark that for the next build!
