I've threatened to test mine but have thus far procrastinated.
Quote:
Originally Posted by Vileintent
I had a compression test done on my 2017 ZL1 (24K miles) after a cam install just to check it. I'm trying to find what the expected values are and I'm not finding anything, I also looked through the service manual.
Does anyone know what the expected values are for our engines?
Here are my results:
- Cylinder 1: 168
- Cylinder 2: 168
- Cylinder 3: 170
- Cylinder 4: 168
- Cylinder 5: 170
- Cylinder 6: 160*
- Cylinder 7: 167
- Cylinder 8: 170
Average : 167
#6 is the lowest but still within 10% of the others. GM allows 30%. |
__________________
2020 ZL1LE A10.
LME LT4 390 short block, LME CID Heads, Kong E2650, FBO.
15" conversion, MT ET Street R 325/15.
100 octane: 1045hp/1055tq.
100 octane + Meth (1x10+): 1117 hp/1067 tq
|