i know if you have ctr pistons in a sirII the cr will be about 11.1, what i am wondeing is do the valve cover and cams effect the cr? so if i had a b16a sirII with ctr pistons, ctr cams, and ctr valve cover what would the cr be? oh yea, and if someone could thro in that really good cr calculator site where you get to choose your parts that would be great, thanks!

 

here you go:
http://www.c-speedracing.com/howto/c.../compcalc.html

no valve cover or cams do not effect the cr.....much to learn still grasshopper

 

thanks!