Compression ratio calculation
Thread Starter
Melting Slicks
Joined: Oct 2002
Posts: 2,106
Likes: 0
Compression ratio calculation
Is there any way to calculate your compression ratio by using a compression guage? because i have one of those and i dont feel like replacing the gaskets for the valve covers just to look at a bunch of numbers.
Instructor
Joined: Oct 2000
Posts: 137
Likes: 0
From: Flemington, nj 08822 usa
Re: Compression ratio calculation (battsup)
No. "Compression ratio" is theoretical only due to the cam holding valves open as the piston moves up. Cylinder pressure is what a gauge reads and it's a relative value depending on leakdown, cam timing etc. There's no direct relationship.
Race Director
Joined: Oct 2000
Posts: 15,036
Likes: 79
From: central FL, near the beach.
Re: Compression ratio calculation (battsup)
remove plugs
open throttle
check compression
post #'s
Post cam
post any other mods
post all known engine info
post reason for asking
I'll give my analysis
open throttle
check compression
post #'s
Post cam
post any other mods
post all known engine info
post reason for asking
I'll give my analysis
