pdd

iTrader: (3)

i tried here and this is what i got
http://www.kb-silvolite.com/calc.php?action=comp

cyl head vol= 60cc
piston head volume =2cc
gasket thickness=.045
gasket bore=3.905
cyl diamitor bore=3.898
deck clearence=.008
stroke=3.622

rod length=6.1
intake closing point on cam card=43.1

SCR=10.788
DCR=9.810

jermstyle

That calculator is off and with 43* it's going to be pretty high. Take a look at my thread about compression and you will find links to more accurate calculators.

jrp

iTrader: (16)

http://members.uia.net/pkelley2/DynamicCR.html

pdd

iTrader: (3)

thanks guys

pdd

iTrader: (3)

im still getting 9.80 on that site for DCR. what gives

jrp

iTrader: (16)

because your using cam timing from .050 and you cant do that, you need the seat timing (.004/.006).

jrp

iTrader: (16)

i come up with 11.2 SCR

H82BBad

http://www.rosspistons.com/calculator.php
to figure static compression

to figure dynamic go here.
http://www.rbracing-rsr.com/comprAdvHD.htm