I have a 2000 camaro with stock cam Ls1. I have a set of 243 heads I want to install. From what I have read, I should use .040 head gaskets to set quench. I don't know if I should or can mill the heads any and still use 93 octane. I can't figure out how to determine my stock cam .006 numbers for the dynamic compression calculators.

Can some one help explaining how to get the necessary numbers to use the dynamic compression calculators? All I have found are stock cam numbers at .050.

Thanks

 

 

check Wallace racing ,they have a great list calculators to figure out a lot of stuff for engines

 

I tried to use the Wallace racing calculator, but am getting hung up on cam specs. After searching, I found cam specs 198/209 .500/.500 and 119.5 lsa. I think those are .050 numbers and I think I need .006 numbers.

I haven't been able to find the .006 numbers listed or a way to calculate them. I also have no idea how to calculate intake centerline and the valve open and close events that several calculators ask for.

Any advice on this, or do I pretty much have to buy a cam with a cam card to get those numbers?

 

youll be fine on pump gas as long as the tune is done right

 

Dynamic compression is hard to calculate. Static of course is a fixed reading taken at TDC at starter motor speed, while dynamic by valve overlap, cylinder scavaging, and other events. Beware also, and unless the site has changed, Wallace takes measurements at advertised lift and duration and not 1/2 inch.

 

Try this calculator http://www.smokemup.com/auto_math/dy...sion_ratio.php