Does a -4AN feed line need a restrictor?

[aleccolin]

So I'll be swapping manifolds and I figured I'd replace the oil feed line while I'm at it. There has been discussion about relocation of feed source, but no concensus as to what is best. Here's the options:

1) Feed from the head. I can get a local place make me a hose with banjos on both ends. I believe the hose is 3/16 SS brake hose style stuff. Should work fine with my 16G. Something like $30.

2) Relocate to the oil filter housing. I'd have him make a longer hose out of -4AN stainless hose (which is 7/32 ID), a 12mm banjo on one end, and a female -4AN fitting on the other. Then I need an adapter for the filter housing (I think it has to be a 90, 1/4 NPT male to -4AN male, but correct me if I'm wrong) All-in-all about $50.

Here's the problem, I've read that stock 2G lines (feeding from the filter housing) and aftermarket -4AN lines need a restrictor of some sort to keep them from providing too much pressure to the turbo. Is this true? and if so, what kind of restrictor would I need?

Thanks.

 

[Zero Banger]

You may want to call these guys about your aplication, but depending on what type of turbo it is, these restrictors might be what you are looking for.

http://www.atpturbo.com/Merchant2/m...OD&Product_Code=ATP-OIL-022&Category_Code=OIL


I have found that it was not necessary for my application to use a restrictor, as long as the drain is properly sized on the turbo itself and the system is properly vented, to allow unrestricted flow. But that is because I wanted high flow and as much cooling to the CRH as i could get

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[dawid4444]

so if i have 2g gsx with evo 3 16g and i have ebay ss oil feed line i think it is 4AN
so my question is
do i need to instal one of these ??
it will help my turbo to spool faster ??
thx guys

 

[buddahboost]

You don't need a restrictor. I didnt use one on my 16G. Unless your 16G is somehow a ball bearing then yes

And no, it will not make your turbo spool faster

 

[JusMX141]

Turbos in the TD05H frame are designed to be fed from a low-pressure source for proper oiling. They are fed at the head from the factory on both 1G DSMs and Evo VIII/IX models with a .075" restrictor built into the banjo end of the factory oil line at the turbo.

If you feed one of these turbos unrestricted from the filter housing, you're asking for trouble. You can easily triple the incoming pressure and volume the turbo is seeing by feeding from the filter housing.

The only time you should consider moving the oil feed to the filter housing on a TD05H turbo is if you're having trouble with thrust plate wear from excessive boost as higher boost levels create excessive thrust loads. You should still use a restrictor in this case to prevent over-oiling the turbo. It should be known that I've seen even filter housing-fed 16G's / 20G's with excessive thrust wear, so it's questionable that the additional oil does anything.

You don't need a restrictor. I didnt use one on my 16G. Unless your 16G is somehow a ball bearing then yes

Restrictors aren't just for ball bearing turbos, and just because something works for you doesn't mean it works for the rest of the DSM population.

And no, it will not make your turbo spool faster

If you're over-pressurizing the center housing or filling the housing to the point where it can't drain properly, it will absolutely bog your turbo down and hinder it's ability to spool quickly.

 

[dawid4444]

i did a rebuilt on my engine and i Removed balance shafts and the oil presure on my gauge is VERY high :/
thats why im asking you guys if i need one of these ????????
and yes i have my oil feed line from the oil filter not from the head .
so do i need one ??

 

[JusMX141]

Just buy a 1G factory oil feed line and the 10mm banjo bolt you'll need to feed your turbo from the head. You'll spend about $30, and you'll no longer have to worry about over-oiling your turbo.

If you feed it from the filter housing as-is, you're going to have an oiling issue at some point. It may not be right now or in the first 500 miles....but you'll have an issue.

 

[9!'clipseDOHC]

Since you have a 1g, the Bonehead turbo oil feed kit feeds from the head just like stock. I just received mine. Great price too.

 

[dawid4444]

Since you have a 1g, the Bonehead turbo oil feed kit feeds from the head just like stock. I just received mine. Great price too.

so thats what i need ??

btw i have 2g

 

[JusMX141]

btw i have 2g

That doesn't mean shit in this case other than you'll need a 10mm x 1.25 banjo bolt for the head and something to cap off the supply coming from the filter housing.

 

[dawid4444]

Since you have a 1g, the Bonehead turbo oil feed kit feeds from the head just like stock. I just received mine. Great price too.

so thats what i need ?????????????

or i need something else ????

or can i just use this
http://www.atpturbo.com/mm5/merchant.mvc?Screen=PROD&Product_Code=ATP-OIL-022&Category_Code=OIL

thank you guys for your time

 

[fhudsonjr]

Since you have a 1g, the Bonehead turbo oil feed kit feeds from the head just like stock. I just received mine. Great price too.

So does this have the same oil restrictor that the stock line has?

 

[dawid4444]

Since you have a 1g, the Bonehead turbo oil feed kit feeds from the head just like stock. I just received mine. Great price too.

so thats what i need ?????????????

or i need something else ????

or can i just use this with my ss oil feed line from oil filter ??
http://www.atpturbo.com/mm5/merchant...egory_Code=OIL

thank you guys for your time

 

[JusMX141]

Why the hell do you keep asking the same questions?

HE'S TELLING YOU WHAT YOU NEED TO BUY. BUY IT, AND INSTALL IT ON YOUR CAR.



Good day.