compression test psi?

[dolph]

Hi guys, i recently posted a thread about the engine block and thanks to your help we identified it as a recessed block which required the relevant head gasket which i have in turn purchased.  My next question is...when i have popped the engine back together what sort of PSI should i be looking for on each cylinder when i use the compression tester?  
Many thanks
Dave

[johhnyboy]

Hi My Toledo 1300 has compressions of about 120 per pot since i replaced the blown head gasket so I would think between 120 and 150 (tops with rebuilt engine)

[Mad Mart]

Yes but all cylinders should be within about 10% of each other ie. you don't want 3 at 120 psi & one at 150.

[thebrookster]

My spitty has one cylinder at 175psi, and the other three at 145, personally I would expect pressure to be 120 - 200psi surely??? I know modern engines should be around 200, and when rebuild the 1300 to go in the spit I will be running that on very high compression  (as high as I can get away with, aiming for 12/13 to 1 if I can get it, forged pistons, steel bottom end etc etc.)

[thebrookster]

The higher the better really, and yes, all within 10% of each other. (Do not take mine as guidence, it is fooked!!)

[Tinweevil]

180, 170, 170, 180 on the last test of mine, recessed block.

For the best repeatable results you must compression test the engine hot and with all spark plugs removed.