Hey, I'm a newbie to the forums but quite familiar with engines. I've recently tried installing a Y8 head on my D16 ('90 CRX) with little success...regarding compression anyway. Here's the story:

Before I touched anything, I tested the compression (cyl 1-4): 180-170-170-170. Sweet, the spec is 185, all looks good. I did the whole swap, took another reading and got like: 80-120-100-120. I figured my head was bad or something, so I reinstalled the original head, headgasket, and took readings again: 60-80-80-100. WTF!?! I've been doing different combinations of Y8 head to A6 gasket, A6 head to Y8 gasket, Y8 head to Y8 gasket. Each time I take care to tighten the head bolts properly and in order, make sure my timing is dead on, and that my comp. tester is fully tightened in the plug threads.

WHAT IS GOING ON!? My bottom end has to be fine due to the readings I received in the beginning and the fact that I haven't touched anything but the head this whole time. I would blame the Y8 but the A6 is getting crappy readings too! Anyone ever come across something like this? I need my compression back!