I have a fully built bottom end with 9.5-1 compression ratio and was wondering what I should get for psi numbers. When I do the compression test I get 180 across the board. What do you guys get when you do the inlinepro 3mm head gasket?

 

If it is 180 across the board I wouldn't worry. You are just looking for consistency.

 

I wasn't to worried just curious. Just wanted to make sure the motor was broken in. Thats all. Thanks
P.S. My new license plates are the same as your user name. VERY NICE!

 

If its fully built ide CC the head, than check the piston height from the deck of the block, do the formula and bam.

My head was 51cc, and my pistons stuck out 0.03 so I went with a 30thous over HG

 

I get 190 across the board

 

Do you have a headspacer on yours?

 

dont worry so much about the actual numbers, but rather consistency between the cylinders.

the actual number will depend on how many times you crank the car. usually, anything over 15psi difference between cylinders means you have an issue.