C4 Tech/Performance L98 Corvette and LT1 Corvette Technical Info, Internal Engine, External Engine

Leak down test help

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Old Sep 8, 2014 | 05:02 PM
  #21  
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DanielRicany
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Okay, here's the compression test results... Doesn't seem right, the biggest difference of 60 PSI...

1. 190
2. 175
3. 200
4. 230
5. 190
6. 235
7. 205
8. 205
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Old Sep 8, 2014 | 05:43 PM
  #22  
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DanielRicany
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Told me to put some oil in cylinder 2. I did and the compression went to 200. He told me my rings are bad. I hear more leakage in the lifter valley than I do in the head ports.
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Old Sep 8, 2014 | 10:53 PM
  #23  
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This machine shop was recommended to me by a forum member rlane5. He claims that his previous motor ran 11.70 with the help of this machine shop I believe that's what he said. Funny too because my old boss had a 1958 Corvette that ran 8.40s down the track and used this same machine shop for his car. I found this out after I used him for my heads. Also my old boss' buddies go there for their machine work and have some pretty fast cars in the 7-8 second range.
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