Somebody want to figure

[Coyote Jack]

Would somebody please figure out my static compression ratio. I have tried 3 different calculators and got 3 different answers.

340 +.030 = 4.07
X heads (should be around 72 cc's)
TRW L2385 pistons (these have 4 valve reliefs)
stroke 3.31
pistons are .070 in the hole
gasket, use a .039 thickness


Thanks
Jack

 

[63dartman]

This is what I got but, you didn't give your head gasket bore, I just used piston bore for it.


STATIC COMPRESSION RATIO 8.416

 

[Coyote Jack]

I have got 3 different head gaskets on hand, none are the same as the bore. I think the generic is 4.12 inches.

Jack

 

[JBurch]

I came up with 7.7 to one

 

[daredevil]

Jack you may want this link. A lot of different calculators in one spot.http://www.wallaceracing.com/Calculators.htm

 

[Coyote Jack]

Thanks pete, that was one of the ones I was using.

Jack