Compression ratio math?

art leong · 01-17-2012, 01:05 AM

I've just measured my motor. And would like to see what compression ratio others come up with?
Here are my specs.
Bore 3.480
Stroke 3.976
Flat of piston is .010 out of the bore
Head volume 49 cc
Head gasket thickness .077
Head gasket bore 3.50
Volume of cylinder with piston .355 down the bore is 47 cc
I believe that will give me a dome volume of 8.33 cc's
Head gasket volume is 12.14 cc's
Cylinder volume is 619.7 cc's

01-17-2012, 01:05 AM	#1
art leong VIP Member Join Date: Dec 2001 Location: Richmond Hill, Georgia Posts: 2,003 Likes: 0 Liked 1 Time in 1 Post	Compression ratio math? I've just measured my motor. And would like to see what compression ratio others come up with? Here are my specs. Bore 3.480 Stroke 3.976 Flat of piston is .010 out of the bore Head volume 49 cc Head gasket thickness .077 Head gasket bore 3.50 Volume of cylinder with piston .355 down the bore is 47 cc I believe that will give me a dome volume of 8.33 cc's Head gasket volume is 12.14 cc's Cylinder volume is 619.7 cc's __________________ Art Leong 2095 SS Last edited by art leong; 01-17-2012 at 01:10 AM.