Been turbo for about a year now so I figured it was long past due on a compression check. This was a salvage motor I got about two years ago with 79K miles. Has about 105K or so on it now. I have had detonation here and there and have certianly pushed the motor to it's limit on stock timing.

I did all cylinders twice

Cylinder 1: 195 & 195
Cylinder 2: 209 & 210
Cylinder 3: 198 & 200
Cylinder 4: 205 & 205
Cylinder 5: 210 & 210
Cylinder 6: 200 & 202

Good results. Nothing to worry about. A little high but I am pleased

 

What method did you use?

Throttle held open?

Just one plug removed or all?

Cold or warm?

Just wondering, since I need to check mine and I've tried on a different car with varying results depending on above.

 

Throttle open

all plugs removed

Fairly warm. Test was done after car sat for 1/2 hour but it was driven for an hour before that

 

Looks like you are really taking care of it. Nice job.

 

MikeD
what would cause your numbers to be high. low i could understand. aren't VQ's suppose to be around 175?

 

Carbon build up will cause higher compression than stock...

 

Good numbers mikeD, definately nothing to be worried about.
I believe 180 is the average number. I believe a lot of carbon deposite can give a higher number reading, dont have an explanation as to how yet. . .