Compression and leakdown test results - good? - Team Camaro Tech
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post #1 of 5 (permalink) Old Apr 27th, 19, 08:12 AM Thread Starter
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Greg
 
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Compression and leakdown test results - good?

Never performed either of these tests before and believe the results are good from what I've read, but would love confirmation. My engine builder wanted me to run these tests because I blew my oil pan gasket and he was afraid of excessive bottom end pressures. Here are the results:
Compression:
1 - 190psi
2 - 190psi
3 - 190psi
4 - 190psi
5 - 190psi
6 - 180psi
7 - 190psi
8 - 190psi

Leakdown:
1 - 6psi
2 - 6psi
3 - 6psi
4 - 7psi
5 - 7psi
6 - 6psi
7 - 6psi
8 - 5psi

'68 Camaro with RS conversion
Moser 9" with 4:11
Martz Chassis 4-link and Front Sub-frame
Tremec T-56 Magnum 6 speed
572 BB - CM Engines
Wilwood 6 piston front and 4 piston rear disc
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post #2 of 5 (permalink) Old Apr 27th, 19, 08:27 AM
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Dave
 
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Re: Compression and leakdown test results - good?

I have seen customer's fresh rebuilds with more variannce between cylinders. Ring seal isn't the issue.

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post #3 of 5 (permalink) Old Apr 27th, 19, 08:45 AM Thread Starter
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Greg
 
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Re: Compression and leakdown test results - good?

Thx Dave!

'68 Camaro with RS conversion
Moser 9" with 4:11
Martz Chassis 4-link and Front Sub-frame
Tremec T-56 Magnum 6 speed
572 BB - CM Engines
Wilwood 6 piston front and 4 piston rear disc
pittpens24 is online now  
 
post #4 of 5 (permalink) Old Apr 27th, 19, 06:57 PM
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Re: Compression and leakdown test results - good?

Looks great to me
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68 Camaro~LSx ~all motor
1.54 60'--6.95 @ 98.45 660'--10.96 @ 121.53
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post #5 of 5 (permalink) Old Apr 28th, 19, 07:41 AM
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Rick
 
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Re: Compression and leakdown test results - good?

[QUOTE=pittpens24; My engine builder wanted me to run these tests because I blew my oil pan gasket and he was afraid of excessive bottom end pressures. [/QUOTE]

Check your PCV and breather(s).
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