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Old 07-01-2014, 09:05 AM   #244
Ice88
Senior Member
 
Join Date: Jun 2008
Location: Auchenflower, Brisbane
Car: Blue SP20
Posts: 2,782
Hey man,

Figured id post this here so the information is available for everyone.

The whole concept came about due to sustained rpm leading to premature engine wear and oil starvation issues with the rods. The stock oil pump just doesn't keep enough pressure/flow enough. The second problem is that the internal PRV causes cavitation in the pump which reduces the flow when the valve opens.

As such the DocB setup uses a swaintech coated pump to create tighter tolerances, thus increasing flow and then plugs up the PRV to stop the cavitation. A PRV is needed however as otherwise you get 100+ PSI at the filter which promptly blows the seal (as mat and myself have witnessed when the PRV failed to open).

The way it works is that you get a AN10 return welded into the MBSP for the oil return and use a oil filter relocation kit.

Stock Oil Filter Out -> Peterson PRV -> Oil Filter Adapter -> Back to Engine

The Bleed of oil from the PRV is sent back to the MBSP. Get mat to show you my setup when you come up

EDIT: When rebuilding engine man, make sure you rebuild using tight tolerances on the mains.
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Last edited by Ice88; 07-01-2014 at 09:07 AM.
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