compression psi to ratio: compression test results!
#1
compression psi to ratio: compression test results!
im not exactly sure that this is where this belongs but this is where its going...im wanting to figure out how to turn a compression test into a compression ratio. ive looked around on a few different sites but i havent came up with much nor do i know if its even possible...?
#5
Re: compression psi to ratio
ok cool i dont feel quite as dumb now. im not the only one that doesnt know. the reason i ask i have an h22 hatch and im wating to turbo it. supposedly something has been done to it the guy i got the motor got it from a guy that got it from a guy... its supposed to have really high compresson and when i took it to get it tuned it put down like 225 and dan said hes never seen an h22 put down that much power that was stock. im gonna go run a compression test probably tomorrow when i get off work. im just trying to figure out what is done to this thing without pulling the head...
#6
Re: compression psi to ratio
Well obviously the lower the compression ratio the lower the compression of the motor and vice versa. If your compression ratio is 10:1 you will have a much higher psi reading on the gauge than if you had a motor with a 9:1 ratio. All you need to do is find what the service standards are for a compression test on the H22 and see where your numbers sit at.
#9
Re: compression psi to ratio
Originally Posted by turbo4life
maybe dew to leaks !! more wear different engien more blow by?
well yes i understand that more psi means higher compression ratio. i would just like to know what the compression ratio is on this stupid thing to figure out whats been done to this thing. oh well thats cool i just didnt know if theres a formula or something. thanks for the info though!