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Discussion Starter · #1 ·
Could someone please tell me what is the normal safe oil pressure operating range is for a warmed up ZO6. Mine ranges from 29/30 psi at idle and as high as 61 psi when I am getting on it. :jawdrop: Is this normal? Thanks! :zboobie:
 

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25-60 psi is normal and expected when hot with 41-45 psi being the average nominal value.

Flow is important in these engines almost as much as pressure. So make sure the levels are kept up and 1 qt overfill is added for track use.

But it still gives me the hibbiejebbies, especially on a hot day at the track.

If racing, some use15W50 or 20W50 in hot weather.

The oil pump inlet/outlet can also be ported and polished and the oil relief spring shimmed to raise the flow and pressure.

Recently there has been a larger gearrotor pump developed that puts out higher flows and pressure. It requires a modified or split timing cover.
 

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Discussion Starter · #3 ·
Thank you for the info! :thumb: I just changed my oil and thought it was a little high but it looks like I am right where I want to be. :D Thanks again! :usa: :z:
 
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