i know there is a formula for figuring this out but if somebody already knows i would apreiate it i just dont have the patience to search it all down . we are trying to figure the comp ratio of my motor its a 2200 bored 30 over , 9:1 comp pistons but the head is shaved 20ths ,block 10ths and the head gasket is 30 ths 10ths smaller than stock soa total of 40ths . im just curios what this does to the ratio ? any help is appreciated .
13's or blowning it. wayhttp://i39.photobucket.com/albums/e175/slowfire99/100_0463.jpg
just a though, I used 9:1 pistons, and the 0.030" head gasket and my piston to head clearance was 0.024-0.026 and I just kissed the head at 5400rpm... what is your piston height?
HP Tuners | Garrett T3/T04B | 2.5" Charge Pipes | 2.5" Downpipe | 650 Injectors | HO Manifold | Addco front/rear | Motor Mounts | HKS SSQV | Spec stage 3 | AEM UEGO Wideband | Team Green LSD | FMIC | 2.3 cams | 2.3 oil pump swap | 280WHP | Now ECOTECED
Assuming those are stock dimensioned pistons, your clearance went from ~.079" to .044" (.010 for block,
.025 for gasket), you're fine there. Since your head has been shaved, you would have to measure the chamber volume before you could calculate your CR.
fortune cookie say:
better a delay than a disaster.
^^^ nice, problem solved.
jamesn29 - you can google dynamic compression ratio, and find some really good calculators. You will need to know the specs on your intake cam too.
HP Tuners | Garrett T3/T04B | 2.5" Charge Pipes | 2.5" Downpipe | 650 Injectors | HO Manifold | Addco front/rear | Motor Mounts | HKS SSQV | Spec stage 3 | AEM UEGO Wideband | Team Green LSD | FMIC | 2.3 cams | 2.3 oil pump swap | 280WHP | Now ECOTECED
thanks ill see what i can come up with
13's or blowning it. wayhttp://i39.photobucket.com/albums/e175/slowfire99/100_0463.jpg
