Is Quench Required?

What's the calculated dynamic CR and cranking pressure with that combo?

Wallace Racing: Dynamic Compression Ratio Calculator

I don’t use “dynamic” compression ratio because it has to to be calculated with RPM and load.

You are better off using effective compression ratio because once the SCR and IVC are set it never changes.

I’m saying that dynamic compression changes, hence the word dynamic. That Wallace calculator (and all the others I’ve seen) never tells you at what RPM it occurs. If it uses VE in its calculation than it’s only at that VE where it’s correct.

Inlet air temperature isn’t included because that affects DCR as well and some other things I’m forgetting.

The math I use for picking cam timing uses ECR and not DCR.