Recently got my b16a all put back together and i wanted to get a accurate compression ratio. Im using Wiseco low compression flat top 81.5mm pistons (K542M815) and eagle rods (CRS5290H3D) with a stock b16 crank. The block deck was milled 7 thousands with a stock b16a head. I did a compression test and i got 190psi across the board. I just wanted to know what my compression ratio is and what psi should i be reading.

 

no one??

 

thats around 9to1 to 9.2to1

 

its nearly impossible to tell exact compression with cc'n the head/block etc

and most compression gauges arent that accurate but what really matters is that the psi across the cylinders are even