Compression
Compression I was wondering if anyone could help me figure out if 59cc heads would put my compression too high to run well on pump gas. The heads are for a 383 ls6 bored .010 pistons are mahle -6cc. My cam is going to be 590 / 590 224 / 232 115lsa
heeeeeelp
heeeeeelp
To properly calculate your DCR I'll need the cam ICL and your piston to deck clearance. I did run some calculations making a couple assumptions and your static compression will be about 11.4:1, which is very doable on pump gas.
here is my specs been running on race gas but its getting expensive, i think 91 octane should do the trick whatcha think..sorry for the hijack
1999 LS-1 Polished Crank, 11.25:1 compression, small chamber heads, 550 lift Cam, Howell harness and computer,
1999 LS-1 Polished Crank, 11.25:1 compression, small chamber heads, 550 lift Cam, Howell harness and computer,
What is the cam part number? What head gasket? What is the piston-to-deck height? What is the rod length?
You should have no issue running 11.25 on 93 octane. I'm running 11.31 with no issues.
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Crane part: 1449121 rod length would be 7.25 if i remember correctly. i plan on using crane rocker set that comes with pushrods. (144750-16)
http://www.lingenfelter.com/store/ls1105910i06.html best description of my shortblock setup that i could find, i think.
http://www.lingenfelter.com/store/ls1105910i06.html best description of my shortblock setup that i could find, i think.
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Verdad Gallardo Crane part: 1449121 rod length would be 7.25 if i remember correctly. i plan on using crane rocker set that comes with pushrods. (144750-16)
http://www.lingenfelter.com/store/ls1105910i06.html best description of my shortblock setup that i could find, i think.
http://www.lingenfelter.com/store/ls1105910i06.html best description of my shortblock setup that i could find, i think.
Calculation:
No problem running that on pump gas.
Image updated in post above. FYI, you would be better off with a .040 head gasket because of the deck height. With .040 gaskets you get 10.97
