gilberjj

Needs a job
Friend of Fast
Posts: 3196
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posted April 09, 2011 10:05 PM
Turbo oil drain
Im having some problems with having too much oil pressure in the turbo. Oil is seeming past the seals and blowingout the exhaust pipe. I currently have the oil draining to the bottom of the oil pan.
Either the scavenge pump isn't able to get the oil out fast enough, or too much oil is being allowed into the turbo feed.
Is there a way to get a turbo oil restrictor on a cycle logic kit?
Or
Does anyone know who sells the oil drain that drains into the a modified oil filler cap.
When I pulled the oil drain from the bottom of the motor and just put the drain into the oil filler pouring onto the clutch, the oil stopped pushing past the turbo seals. I think either solution would work, but I'd prefer to simply use the restrictor method as I'd like to keep the oil pressure up. Thanks
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01smokes

Needs a job
Posts: 2243
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posted April 09, 2011 10:40 PM
Some use a .34 nitrous jet to restrict the oil pressure
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gilberjj

Needs a job
Friend of Fast
Posts: 3196
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posted April 09, 2011 11:04 PM
Where does the nitrous jet go?
I think I've figured out how to fix this.... I've done some research, and the stock wrx sti turbo comes with a banjo bolt turbo restrictor. It has one .055" hole which would be great if my turbo were a ball bearing turbo like the vf39 on the sti. I think I'll just buy that bolt and drill it out a touch... That should restrict flow enough to not push oil past the seals, provide enough oil for the bearings, and increase oil pressure for the rest of the motor.
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Big_T112

Pro
Posts: 1061
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posted April 10, 2011 06:31 PM
If you drain back to the oilpan the hose has to enter right by the pickup for best results. If it just dumps in the pan under standing oil it will smoke.
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