CAM and compression ratio??
I don't know what to say to you guys
you did gave amazing answers and explanation and i really do appreciated your helps and efforts 
I will show this subject to my friends
What the calculators online you're using?
I see some shortcuts and i would like to make sure on them please.. I hope didn't miss any of them please ..
BDC means Bottom Dead Center
IVC means **************** ?
ICL means **************** ?
TDC means Top Dead Center
DCR means Dynamic Compression Ratio
ABDC means *************** ?



