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Comments sought on compression test results... 200 1979

posted by  pierre on  Sat Mar 1 13:36 CST 2003
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last visit: Fri Oct 10 10:49 CST 2014
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Hello, I hope everyone is well.

I just did a compression test on my modified B21F with 11:1 CR and 150,000 miles.

Set-up:

- Equus gauge
- Clean, rebuilt head
- Warm engine
- Wide open throttle
- All plugs out
- 5 seconds of cranking for each cylinder

Results in PSI:

- 150, 148, 148, 148

The consistency is good across the cylinders but I was expecting higher PSI because of the higher-than-stock CR. Maybe I was expecting wrong?

Will you share your thoughts?

Thanks, as usual...






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New Comments sought on compression test results... [200][1979]
posted by  pierre  on Sat Mar 1 13:36 CST 2003 >


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