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Is this good?
I ran a compression test and these are the #'s I got.
1. 150 2. 155 3. 155 4. 155 5. 160 6. 155 7. 160 8. 160 Is that good or bad; the motor has about 3000 miles on it. I have a 347 with 10 to 1 compression. I think it is pretty good but want a second opinion. |
it is very good. what your looking for is any cylinder that is much lower than the others.
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That is what I thought, thanks mike.:)
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Consistency is good, but my stock compression motor makes 155-160 across the board. A friends LT1 shows 180 psi and they are 10.25 to 1.
Maybe you might want to try a leakdown? |
I think the overlap of any given cam may also affect compression numbers, so being you have a 347, it probably has a decent cam and you probably don't have anything to worry about.
Did you check the compression when the engine was at operating temperature? A warm engine is usualy good for another 10 psi or more. |
It was warm but not hot.
The cam is a 224/230@0.050 with .544lift 112ls I do not know anyone around here that has a leak down tester. |
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