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built4sound built4sound is offline
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Join Date: Nov 2002
Location: Clinton, CT
Posts: 51
oil pressure vs volume...

sorry a little long winded

Question one of two....

Some time ago I was having a major problem with oil flow through my 2.7 turbo. I did receive a lot of great advice here but eventually got very discouraged and the car has been sleeping for quiet some time. Well now I am ready for action.

One if the pieces of advice I had received was to add a rescrictor in the oil line going to the turbo. With that came the discussion.... will a restrictor reduce the oil going into the turbo or since the pressure is still the same will it just change the flow and jet the oil into the turbo at the same rate.

I never really pursued this idea as I already had an 1/8" reducer inline with the turbo and was skeptical if this was the way to go.

The other day I had a revelation and found an adjustable oil diverter that would send the extra oil back to the motor while limiting flow to the turbo. I figured this was a good idea and planned on ordering it and also an oil pressure gauge to install on the output side of it before the turbo so I could make sure that I didn't limit flow to much.

I ordered the gauge and sender but when I went to order the diverter valve they thought it was not the best approach and suggested I adding a restricter..... We then had a long discussion about oil pressure vs oil volume going to the turbo.

So after that long winded history report here is my real question..... since I already ordered an oil pressure gauge to put before the turbo, is monitoring your oil pressure relevant to the amount of oil I send to the turbo. Should I bother to install it and use it as a tool to see the effects of different size restrictors in the input side of the turbo?

Oil drainage question will be part 2, thanks in advance
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74 911s
2.7 Turbo
Old 05-07-2010, 08:46 PM
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