My brother has a mazda rotary digital compression checker and we used it today on my fb. Here are the results:

Front: 5.4/5.2/5.2, 217 cranking rpm
Rear: 5.0/4.8/5.0, 201 cranking rpm

The minimum spec for a stock port 12a is 6 bar at 250 cranking rpms. Extrapolating for the lower cranking rpm, I am probably right around there. Also, my half bridge definitely makes the numbers lower. All in all I am pretty happy with the results, the pulses are pretty even and the car pulls good.

Btw, for anyone in the NJ area who needs a compression test PM me. My bro commented that it is much easier to get to the spark plugs on an FB than an FD, so I am sure he'd be willing to do it for cheap for us guys

 

Tell him to brind the tester to the meet in NJ, that would be cool!

 

He'll def bring the compression tester to the meet on May 13th in NJ

 

That's hot. I wanna see my compression!!!

Next we need a portable dyno, some trees and cold air and we're on vacation in rotary heavan

 

LOL! Ya I really want to dyno my car too and see how many ponies this baby is putting down!