tubo oil feed lines

SON240sx Automotive
1

A couple people have contacted me about oil feed lines for your turbos. For some reason, they say they are hard to get?
I don’t know enough about your cars, but would like to look at having these made. I understand they need M12 x 1.25 threads at each end? Do they use a banjo bolt at each end? I was under the impression that the T25 seals on an inverted flare?
Anyways, I also believe these can be mounted either above or below the manifold? How does that affect the oil feed line? Is there a standard length or couple of lengths these should be??

Thanks in advance,
Ziggy

2

There’s a banjo fitting on only one end.

---------- Post added at 04:39 PM ---------- Previous post was at 04:32 PM ----------

(I found this on some other 240 forum. Hope it helps)

Cut/paste from notes i’ve saved:
Oil supply line
12mmx1.25 to -6AN union adapter-----EAR-991945

6 AN female x -4 AN male AN reducer fitting-----EAR-989464

90 Degree -4AN hose end-----EAR-309104

Perform-O-Flex -4 AN hose, 3 Foot Length-----EAR-403004 (cut to required length)

90 Degree -4AN hose end-----EAR-309104

GT Oil supply fitting (go to www.atpturbo.com)

Water supply
1/4" hose barb to 1/8" NPT union adapter-----EAR-984004

1/8" NPT female coupler-----EAR-991001

1/8" NPT to -4AN union adapter-----EAR-984004

-4AN straight hose end-----EAR-300104

Perform-O-Flex -4 AN hose, 3 Foot Length-----EAR-403004 (cut to required length, should be able to do the return and supply on the stock DET manifolds)

-4AN straight hose end-----EAR-300104

1/4" NPT to -4AN union adapter-----EAR-981644

ATP banjo water fitting adapters (go to www.atpturbo.com)

Water return

ATP banjo water fitting adapters (go to www.atpturbo.com)

1/4" NPT to -4AN union adapter-----EAR-981644

90 Degree -4AN hose end-----EAR-309104

-4AN hose(see above)-----EAR-403004

-4AN straight hose end-----EAR-300104

ATP banjo water fitting adapters (go to www.atpturbo.com)

Oil Return

ATP GT Oil drain fitting and gasket

1/2" NPT to -10AN union adapter-----EAR-981610

-10AN hose end-----EAR-800110

-10AN hose (again this is a 3 foot section which you wont need all of)-----EAR-403010

-10AN hose end-----EAR-800110

1/2"BSPT to -10AN union adapter-----Found a place in Florida that deas this fitting http://www.batinc.net/files/un816.pdf

---------- Post added at 04:39 PM ---------- Previous post was at 04:39 PM ----------

(I found this on some other 240 forum. Hope it helps)

Cut/paste from notes i’ve saved:
Oil supply line
12mmx1.25 to -6AN union adapter-----EAR-991945

6 AN female x -4 AN male AN reducer fitting-----EAR-989464

90 Degree -4AN hose end-----EAR-309104

Perform-O-Flex -4 AN hose, 3 Foot Length-----EAR-403004 (cut to required length)

90 Degree -4AN hose end-----EAR-309104

GT Oil supply fitting (go to www.atpturbo.com)

Water supply
1/4" hose barb to 1/8" NPT union adapter-----EAR-984004

1/8" NPT female coupler-----EAR-991001

1/8" NPT to -4AN union adapter-----EAR-984004

-4AN straight hose end-----EAR-300104

Perform-O-Flex -4 AN hose, 3 Foot Length-----EAR-403004 (cut to required length, should be able to do the return and supply on the stock DET manifolds)

-4AN straight hose end-----EAR-300104

1/4" NPT to -4AN union adapter-----EAR-981644

ATP banjo water fitting adapters (go to www.atpturbo.com)

Water return

ATP banjo water fitting adapters (go to www.atpturbo.com)

1/4" NPT to -4AN union adapter-----EAR-981644

90 Degree -4AN hose end-----EAR-309104

-4AN hose(see above)-----EAR-403004

-4AN straight hose end-----EAR-300104

ATP banjo water fitting adapters (go to www.atpturbo.com)

Oil Return

ATP GT Oil drain fitting and gasket

1/2" NPT to -10AN union adapter-----EAR-981610

-10AN hose end-----EAR-800110

-10AN hose (again this is a 3 foot section which you wont need all of)-----EAR-403010

-10AN hose end-----EAR-800110

1/2"BSPT to -10AN union adapter-----Found a place in Florida that deas this fitting http://www.batinc.net/files/un816.pdf

3

Well, that helps SOME…

Doe your lines use the banjo fitting at the turbo end, or the supply end?
That list seems like a long -round-a-bour way of putting the line together. Like the first two fittings can easily be combined into one.

I would still love to know:
a) does the turbo use a banjo bolt, or does it seal on the M212x.125 with a crush washer? Actually, I had thought T25’s used 7/16-24 inverted flare fittinngs? The T25 on a 2g DSM does!
b) do you need a Banjo style fitting at your feed source?
c) the GT style fitting at ATP turbo…I couldn’t find that on the site…but is that a restrictor fitting? Do you really need a restrictor fitting with a journal bearing turbo? would it maybe be better to use -3an line instead of the restrictor fitting?
d) exactly how long does the line need to be??

I might tackle water lines later if the oil feed lines work out. Do you guys also have issues with oil return lines? Is that something I should be looking at also?

Thanks,
Ziggy

4

One water line uses banjos at each end, goes into the engine block below the #1 cylinder exhaust port. The other has a banjo at the turbo and a rubber hose clamped onto a steel line at the other end, behind the cylinder head.

Oil feed uses 2 banjo bolts, goes into the engine block 10-12" below the water line.

Oil return is the usual 2 bolt flange with a rubber hose to the bottom of the block.