I have a 96 prelude Si with a h23 turbo, turbo pistons and lowered compression. I was told it had bad rings so I took it home and did a compression test and it came out like this.
Cyl 1: dry-130. Wet-150
Cyl 2: dry-140. Wet-163
Cyl 3: dry-129. Wet- 166
Cyl 4: dry-121. Wet- 165

It does not smoke and doesnt burn much oil nor do I seem to have loss of power, and the only spark plug that was wet( on the tip) was cyl number 3.

FYI I do have a crack in my turbo manifold.

Please help what's wrong with the car?????

 

possible leaky valve guides? is the o2s near the manifold crack? it can give false readings if it is. why where you told it had bad rings?

 

a shop told me. but i didn't believe them. and whats worse valve guides or rings?? and no the o2 arent but there is a big enough crack that you can feel the air coming out

 

leaking oil into the combustion chamber is not so good either way. valve guides are "easier" to fix. remove head & send to machine shop. you can remove the pistons & rings with out removing the engine. take them through the bottom, remove oil pan. you still need to remove the head. air is also being sucked inbetween strokes in the manifold, kind of a venturi vaccum effect. is the fouled plug causing a misfire?

 

if you end up replacing the motor, I have a h23a crankshaft with 55mm mains you can put it in h22 97+ blocks. for sale