Technical > Matt Shaff's Engine Shop

dry sump systems

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hemidakota:
Coupemerc how much oil do you run in your set up? It appears I have the same system, 1.2" pressure and 1.4" scavenge 5 stage and the same tank. Thanks. Figured you were pulling way more vacuum, interesting. The money we spend to go fast...

coupemerc:
I put 10 Quarts of oil in mine if it's completely dry, 9 quarts on a change. You need the tank to be about 1/2 to 2/3 full with the oil hot and motor at about 3000rpm. The only "downside" to mine so far is that it's making insane oil pressure. 100 psi just off idle and who knows where it is at 10.2K? I've been working at bringing that way,way down. Even with the super high oil pressure, the bearing still look good. Bringing the the pressure down to something reasonable will help free up some power and allow the DS and Vac systems to work better. The motor pulled 18" of vacuum on Iaconio's dyno.

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