dumb ?-srx

[fusion 69]

This might be outof line but here it is. How do you figure out your compression ratio?

 

[Devilin AblueDress!]

Dont know thats is a dumb question, I consider myself mechanically inclined and I have no idea how to figure out comp ratio. Whats got me curious is why?

 

[madzx2]

heres some reading material i found interesting
http://www.sacoriver.net/~red/uccr.html