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Showing results for tags 'low compression'.
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Hello! So I got a little bored today and decided to pull all of my plugs and check my cylinder compression. I’m going to be doing a turbo build so I just though it would be a good idea to give the old L28 a once over. I pulled all the plugs and got a consistent 100 PSI on all cylinders. 😡 al little history on my L28 ... i rebuilt it about 15 years ago and it has about 20 thousand miles on it. It’s an F54 block with flat top pistons with an HKS steel head gasket (2mm I think) with a freashly re-built P90a head. So what’s up??? Why 100 PSI??? I mean it’s 100 exactly on all 6 cylinders HELP!
