Drill and tap another port in the filter housing so you can run two separate -4 feed lines. Y fittings are often problematic.

Jack

 

Thanks Jack, that would work. Is there a way to do it without drilling and tapping and no Y block?
I don't know if there is such a fitting for oil but for fuel lines I seem to remember seeing an AN fitting with a port for a fuel pressure gauge built into it. Maybe I could use the one on the adapter for 1 turbo and one on the outlet line AN fitting?

Mike

 

You could run a sandwich mount with a shorter filter.

http://www.cxracing.com/mm5/merchan...merchant.mvc?Screen=PROD&Store_Code=CXR&Product_Code=OIL-SW1&Category_Code=FUSM

 

Y fitting will work fine... Drag Week tested.

 

X2, I run a "T" fitting......no problem either

 

I don't see a problem with a Y, just make sure you run at least a -6 in if you want two -4's out.

 

Thanks for the advice, -6 it is, I already have the 2 -4AN lines.

Mike

 

All twin builds ive done...-4 into Y with -4 into each turbo...havent had any issues

 

Just be careful. We've seen more than a few instances of one side starving with Ts and Ys.

Jack

 

Agree Y is acceptable a T would be iffy

 

If a line one size larger feeding the Y than the 2 from the Y shouldn't be a problem. If jack says he has seen issues then it's a possibility

 

Depending on what the turbocharger setup is (oil requirements), the -6AN to Y-block with (2) -4AN lines is recommended. It is best to make sure that the lines are equidistant coming out of the Y-block. We do not recommend the use of a T-fitting.

 

Intresting in T vs Y fittings

 

The biggest problem I've seen with plumbing two turbo's to a Y poor lines being fabricated. Equal length is one thing, equal FLOW on the other hand is much more important. Doing it correctly will save you headaches from the get go!

 

I guess the problem is the oil is going to go the path of least resistance, so 1 turbo may get more oil than the other and I would never know till one fails.

Mike

 

I'm doing a twin deal as well, so each line has to be the same length?

 

I'm using an aluminum distribution block from McMaster-Carr. Fed by a -6 line, to two 1/4'' hard lines. Then to -4 Teflon lined flex lines to each turbo. Flow was about dead even. Turbowerx Exa Pump.

 

I'm going to complicate the crap out of this, but, the BW S360 turbo calls for -3 oil feed lines with no restrictor. So would a -4 feed to the Y block be a proper choice? I mis-spoke earlier, I actually already have two -3 lines but one is 6 inches longer than the other so I need to shorten it. This may be helpful for anyone running the smaller turbos, size of the feed line is important and is dependent on the turbo brand and size.

Mike

 

i just used a single -4 to a tee then -4 to each turbo. one line is 6" the other is 24"
each turbo has a restrictor so i figured it was all good. no problems yet but ive only put about 800 easy miles without real boost on it

 

Twin s366's here.
-6 to a tee and -4 equal length lines to the turbos. All good so far.
No problems in 3k of pretty hard miles.

 

I've got twin s467s with -6 to a y to two -6s, -12 returns.

 

I also run -4 micro filters before the turbos. That way if something goes south in the engine, the shit won't get pumped through the turbos.
-8 to Y to 2 -4s, garret 94's

 

We see these cause lots of failures too. most of them are much too high a micron count to be effective. The ones that DO catch things generally just cause an oil starvation that kills the turbo anyway.

The only surefire way we've found that is foolproof is to run two separate -4 lines straight from the filter housing. That gives the least chance for something to go wrong.

Jack

 

How would the flow be afftected with a rear mount set up over 6ft away. Is two lines from the oil sandwich still the best way?

 

I'd post a pic but this silly-ass site won't let me.

Mike

 

^^^^^ 10-4 on that, other sites are so easy to post them!