What Oil Restrictor do I need?

[TkrPerformance]

just buy a new turbo it will save you all the problems.

[Shane@DBPerformance]

Here is what I do on my own DSMs, if your turbo blow a seal or dies from oil starvation though, don't blame me.

Mitsu Turbo with balance shafts: Head port
Mitsu Turbo without balance shafts: Head port
Garrett/PTE/Turbonetics Journal Bearing Turbo with balance shafts: Oil filter port
Garrett/PTE/Turbonetics Journal Bearing Turbo without balance shafts: Head port or oil filter port with FP journal restrictor/filter.
Garrett/PTE/Turbonetics Ball Bearing Turbo: Oil filter port with FP DBB restrictor/filter
Holset turbo: Goodluck

-3 feed line max.
Big, no crimp, no uphill oil return line with the turbo center section pointing as straight down as possible.

[santa]

Julien RE-RE built my turbo.

That's your problem right there. Lots of people on this board have had him rebuild turbo's for them and they fail rather quickly. Bring it to a place that specializes in rebuilding turbos :).

[93tsiawd]

That's your problem right there. Lots of people on this board have had him rebuild turbo's for them and they fail rather quickly. Bring it to a place that specializes in rebuilding turbos :).

precision:drive1:

[Cammaxon]

Talked to Brian at FP. He said Stay away from putting a restrictor on a journal bearing turbo. He also said to stay away from any one that suggests to lol. He said you can't just throw a rebuild kit at a turbo and hope for the best; it's a pretty complicated process to make sure every thing is working perfectly.

Talked to a tech at MAP. He said don't run a restrictor. He said the PSI was completely normal and plenty of people are running turbos for years (not a few hundred miles) without any problems at that psi.

If it blows out again i'll take the loss and buy something new. i'm sick of dealing with it. this is the 3rd time in a year my turbos been off my car. I just wanna go fast. i just dont want my floor board to fall out and i dont want any danger to my manifold.

[blackrosenova400]

If you know for a fact that the inlet of the oil feed is restricted then yes it does not need a restictor.

If it doesnt, and hes feeiding it with a 4 an line from the filter housing, he is feeding a shit ton of oil to that turbo and thats why its blowing. Any turbo is gonna blow, it doesnt matter, the drain cannot handle that amount of oil.

The only way for oil to blow out out that seal is for it to be worn, inproperly installed, or too much oil FLOW that the turbo drain cannot handle, backs up into the center section, and out the seal.

I personally ported and altered my oil pressure relief. I now have a nice controlled 15-18 psi at idle and 75-85 psi at 8500 rpm, warm.

I also run a 4 an line feed (form filter housing) to my garret center section turbo with a .09 restrictor, works beautifully.

Take a picture of the inlet of the oil feed on the turbo.





A journal bearing 20G doesn't need an oil restrictor. Oil pressure from the port on the head is much lower than engine oil pressure.

Oil pressure is temp and RPM based, it has nothing to do with load so please don't list an oil pressure for WOT. 100+ psi at idle with a cold engine is perfectly normal. Once the engine is fully warmed up oil pressure should be between 5-20 psi at idle. At 3k RPM (once fully warmed) oil pressure is generally 60-80psi.

[Iliketurtles]

Julien RE-RE built my turbo
this is def why your turbo is off your car

[Matt D.]

If you know for a fact that the inlet of the oil feed is restricted then yes it does not need a restictor.

If it doesnt, and hes feeiding it with a 4 an line from the filter housing, he is feeding a shit ton of oil to that turbo and thats why its blowing. Any turbo is gonna blow, it doesnt matter, the drain cannot handle that amount of oil.
Keep in mind that pressure does not equal volume. In fact, higher pressure equals less volume. Look up Boyle's Law.

[scheides]

Boyle's law is a gas law, and last time I checked, oil isn't generally in gaseous form in an engine. That would probably be bad :)

[blackrosenova400]

Thats why I said it cannot handle that amount, and didnt say that it cannot handle that pressure. If I go and remove my restrictor on my turbo will you pay for it if it blows? Because it will.

Its so obvious its funny. Theres two options looking at the pics.

1. Inproperly installed seal

2. Too much flow


Keep in mind that pressure does not equal volume. In fact, higher pressure equals less volume. Look up Boyle's Law.