I was searching on eBay and found that some sellers claim that their oil feed inlet adapter to the turbo has a built in oil flow restictor, so that excess oil pressure won't blow the oil seal of the turbo.



Is that true and do I need the one with the restrictor or limiter?



Or Can i just screw the line's male fitting into the inlet of the turbo?



The picture of the restrictor here:









Please let me know.

Thanks guys!!





nate

 

it is true, but the one pictured is by far the smallest ive ever seen. but yes, you need to have a set amount of oil into ur turbo, if u just run something like a -8 into the turbo without a restrictor, you are gonna have oil problems

 

I'm going to use -4AN size feed line.

Do I still need this restricter with my setting?

please let me know.

 

depends on the turbo itself, u need to know what it calls for, think of it like a car, would any set of rims work? no, cause different cars have different bolt patterns and offsets.

 

Its also about where your getting the oil from, if your tapping from the head it wont matter what size (as long as its not dinky) you use without a restrictor, as the head isnt a high pressure source. Actually with a journal bearing turbo and a low pressure feed, a restrictor might not allow enough oil into the journal to properly lubricate and cool the turbo..

If your tapping from the block, aka the pressure sending unit, your talking about higher pressure feed and without a restrictor your journal has to deal with that pressure, not to mention your pressuring oil in and out of the turbo, the oil should have enough pressure to deliver it to the turbo, and gravity takes course from there.

ALSO ball bearing turbo's require less oil as well, so youd have to take that into consideration when purchasing a restrictor.

 

I have T3 super 60 turbo, and I am getting the feed from the Greddy Oil filter adapter where the oil filter is.

Again, I am going to use -4AN size feed line.



Do I still need the restrictor?

 

yes it'S a high pressure source

 

use a -3an line.. a -4 is a little big.. i am getting my oil from the head, using a -3AN line and its working great.. no blown seals, or anything.

if you tap into the block, USE A RESTRICTOR.. that was one of my problems last time.. i had -4AN line, no restrictor, tapped into the oil pressure sending unit..

but check the specs on that turbo, and see how much oil psi it should have. then, if your doing things right, get a oil psi gauge and hook it to the same location on the head, and see what its pumping out, if its a lil to high, use a restrictor thats a lil small, then if it pumps out to little psi, drill the hole open a lil more...

 

I will try soon and let you guys know.

thank you.