JGTURBO

Just done a compression test on a second hand RST engine I just purchased.. The results were:

1 = 145
2 = 150
3 = 145
4 = 155

Some variation between cylinders there, but I`m more interested to know if this sounds nearer to being standard RST compression, or low compression?

Any info, is much appreciated..

Thanks

JGTURBO

bttt

MadMac

looks fine to me!

JGTURBO

Yes but does it look like standard compression, or low comp.?

Thanks

flashpoint

You can’t tell from just doing a compression test,

Cheers

Steve

GARETH T

yep no way of telling from a compression test, as there is too many variables

Ginge !

so how do ya test out of interest ??????

i would like to know my comp ratio, the guy who fitted my head forgot to test

Boost Junky

BTTT for JG and b19bal

flashpoint

Putting it simply, you have to calculate the swept volume of the cylinder and then divide in to the chamber volume and that will give the comp ratio.

Cheers

Steve