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Old 01-23-2017, 04:40 PM
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YerDugliness YerDugliness is offline
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Cobra Make, Engine: Cobra Auto Works body, Ron Godell Racecars chassis, 1989 Mustang GT 5.0 HO (converted to carb), W/C T-5, 3.73's in a Ford 9" Traction-Loc.
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As DXMF said, the relief spring in the oil pump, which opens a valve to dump excess oil back into the oil pan at a PSI determined by the strength of that spring, may for some reason be too strong and not allow that valve to open below 70psi, even in a brand new Mellings (great choice, BTW!).

Perhaps a call to tech support at Mellings could help figure that out and even allow you to get the correct spring to custom set a max psi to suit your engine builder?

Just a thought.

Cheers!

Dugly
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