AN oil hose setup for ball bearing turbo

[incubus2432]

I just ordered a GTB6131 turbo and I know it requires a special oil feed hookup. I have never dealt with AN fittings/hose so I am a little unsure of what all I need to connect the turbo to the engine. I know it is a -4 to the turbo but which one, how do the fittings connect to the hose (part of the fitting I assume), what adapter to the engine, etc.

I'm sure if I had the Turbo in front of me and an assortment of fittings I could easily figure it out but I'd like to get things ordered in advance and only order what I need.

Thanks!

 

[DCVING 6]

I think most people are using rubber lines to the coolant passages under the throttle body.

At any rate, I would give PTE a call and see what they say. I think they even have kits for them. 219-967-7832

 

[BEATAV8]

The fittings for the ball bearing turbos have oil restrictors in them. I noticed it on my new PT6776BB. You better get what you need direct from PTE.

 

[incubus2432]

OK....the turbo came today so i see what I have to deal with. The AN fitting and oil line are included. All of the hard line routing looks tight. Anyone have any pics of their BB turbo installed?

 

[Royal-T-Ltd]

Can you post pix please of new turbo......please:biggrin:

 

[incubus2432]

I'll take a few tomorrow.....I already repacked it in the shipping box to wait until I have an afternoon to install it.

 

[incubus2432]

Here are a few pics. You can kinda see how tight the hardline routing is. I think I am going with a "turbo saver" type system so the oil feed line shown will be eliminated.

I am surprised by how small the restriction is in the supplied AN fitting......it's a pinhole basically. I would think you'd want more oil flow but, I guess, that might kill flow elsewhere to the motor if it was wide open. Thoughts on this?

 

[Royal-T-Ltd]

Here are a few pics. You can kinda see how tight the hardline routing is. I think I am going with a "turbo saver" type system so the oil feed line shown will be eliminated.

I am surprised by how small the restriction is in the supplied AN fitting......it's a pinhole basically. I would think you'd want more oil flow but, I guess, that might kill flow elsewhere to the motor if it was wide open. Thoughts on this?

Im guessing those hard lines are the coolant lines that go between the turbo and the coolant hardline/throttle body lines? thats kinda cool. how much did those run?

and to answer your question - i heard that the b/b turbos just need a thin film between the b/b cartridge and surrounding area.... too much oil and it will leak out....
oh an thanx for the pix it looks bad ass

 

[incubus2432]

The hard lines with the banjo and anodized red bolts are for the coolant....I believe they were $75. Kinda pricey but should make for a clean install. The longer line is the oil feed which I likely won't use anyway.

I talked to Mike at Full Throttle about the AN fitting and he said basically the same as you.

 

[RUQWKNF]

On the Garrett BB turbos, they require very little oil for lubrication purposes. If you didn't run a restrictor fitting, oil would leak past the cartridge, due to flooding the cartridge with excess oil. Yes, the Red anodized fittings with tubes are the water coolant lines and the small aluminum fitting is the oil feed fitting with restrictor built in. Thanks for posting up the pics, looks good. Also, if you do go with the Oil Filter relocation kit made by PTE, it will include a new braided SS -4 An feed line that should screw directly to the restrictor fitting that came with your turbo. The really long prebent tube that you have attached to the restrictor fitting was designed for stock oil feed line setups. The PTE Oil Filter Relocation kit does away with the factory oil feed tube and plugs it up. The new oil feed line comes directly from the oil filter header so that the turbo will receive filtered oil.
HTH

Patrick

 

[d0n_3d]

Gee Patrick, that turbo in the pics looks familiar huh?:tongue:

 

[Louie L.]

Those are some cool fittings-adaptors. Two hoses off the old TB coolant nipples and its done, no one uses them anyways ..Sweet..

 

[incubus2432]

My only remaining "issue" to get everything I need for install is to get the fitting where the oil feed attaches from the engine.

It looks like the same as the feed port on top of the turbo and that is 1/4" NPT .....am I correct on both counts?

 

[RUQWKNF]

On the BB chras, the oil feed fitting is not a standard npt like the non ball bearing. It takes a tapered flare fitting. The silver oil feed fitting you see in the pic is a very specific fitting that was designed to work with the BB chra turbos. It has a restrictor built into it and screws directly into the chra. -4 AN on the other side of the fitting. In the picture above, you can see the oil feed line that comes with the Water coolant line kit for Buicks, this line screws directly onto the factory brass block that the factory oil feed line used to attach to. So you really don't need anything else for install other than some rubber hose and worm clamps to connect the water coolant lines to the heater pipe barbs.
HTH

Patrick

 

[incubus2432]

Thanks....I understand all of that and I appreciate your your response. I wasn't clear on what I was looking to accomplish.

I am looking to make a custom feed line with filter so the turbo always gets filtered oil......so I won't be using the supplied feed line. I will use the included restriction AN fitting of course. I just needed the size of the connector that attaches to the oil feed source.....I'm reasonably sure it is a 1/4" NPT. The restriction AN fitting included with the turbo is a -4AN to 1/4" NPT.....correct?

 

[RUQWKNF]

Nope, the fitting in the turbo is -4 AN to tapered flare, not NPT. Can't remember the exact thread pitch but it's definitely not standard NPT. You might want to call PTE direct and ask them the thread pitch.

 

[incubus2432]

OK....last try. :wink:

What are the sizes/threads of the two fittings on the supplied feed line? This will get me what I need to know. Thanks again.

 

[PaCemkr86]

can you link me to that water line kit for the turbo?

 

[incubus2432]

BAM!!!!!!!!!

Water line kit link