02-20-2006, 11:41 AM
Join Date: Mar 2002
Location: Johnstown,PA, USA (Flood City)
Re: Stock LT1 DCR? Intake closing point?
97bowtie, what specs did you use? here`s what I used, and the results are similar to yours:
8cc piston head volume (did a search on this)
gasket bore 4.125 (just a guess here)
deck .015 (guess also)
With the above data the CR comes out to 10.455. I sorta reverse engineered the deck, and gasket bore to get the known CR for an LT1 (10.4/10.5).
Then with the 60-64* ABDC I got: 8.396 - 8.643.
How did you get the 60-64*?
ADV DUR minus .050" DUR divide by 2 and add that to the INT CLOSING @ .050"?
Last edited by cdb95z28; 02-20-2006 at 11:44 AM.