Turbo oil feed line size???

Coloty

New member
I know I have seen these posted before, but can not find them and the syty.org archives are not up yet. I want to re-do the oil feed line from the back of the block to the top of the turbo with some new braided line and Earl's or Aeroquip fittings. What is the fitting sizes at the turbo and block so I can order them from Summit? I appreciate the help in advance.
 

Coloty

New member
So if you want to re-route the line to take oil fresh from the filter you can get a 1/4 NPT plug for the block and call it good. Anybody have the size for the unused spot on the oil filter "caution hot" area? I know Mike does....hopefully he reads this thread. :D
 

ghettosled

SYTY SUPERSTORE
I think the stock line is -3 with -4AN crimped fittings. And the fittings in the block and turbo are 1/8" NPT.

The line I use from the remote oil filter is -4 stainless braided line(physically larger diameter), with Goodrich fittings.
 

Coloty

New member
Great I appreciate it. Also, are there no problems with pulling oil from the filter as far as less oil to the motor? I have a stock oil pump and just want to make sure this won't starve the motor of oil. I'd rather have my turbo go down than the motor.
 

sy2185

New member
I would be concerned as well if the feed(to turbo) was in line with the oil return(from oil cooler in rad.), forcing all return(from cooler) oil to go through the turbo line, but it's not. The plug on the remote filter housing is a T off the oil cooler return line. Should have no noticable difference on oil pressure/flow since after going through the turbo it dumps back into the pan, similar to the way it did stock. An added benefit is the oil feeding the turbo is right out of the oil cooler and has just been filtered. Good stuff for turbo life.
Jeremy
 

Coloty

New member
I still haven't been able to find posted anywhere what size the fitting is in the oil filter adapter and can't remove it to see until I find the right tool. Its obviously NPT plug, maybe 3/8", and has an odd allen type head on it. Could someone that knows clue me in :D Thanks for the info.
 

sy2185

New member
I'll post it all when I get off work tonight at 12am. I just did it with -6an line and everything.
Jeremy

I have pics too.
 

ghettosled

SYTY SUPERSTORE
it is 3/8". You used to need two fittings to go from 3/8" to -an

now i get em in one fitting. -6 is overkill for the turbo feed.
 

Coloty

New member
You guys rock........... Just needed a confirmation before ordering the hose ends. They are a little pricey ($18.99) so I don't one to order 1 of each and then return the rest. -6 AN does sounds pretty big. Pics would be sweet if you can post them. I plan on using -4 AN but that will require a -6 to -4 AN reducer at the filter housing. Nothing I can find that adapts from 3/8 NPT to a -4 AN directly in Russel, Earl's, or Aeroquip. -6 AN is what I have for the coolant feed line from the manifold however. I'll try and post pics as well. Thanks
 

Coloty

New member
Pics look good, thats exactly the look I'm after as well. How hard are the hose ends to put on?? I've heard everything from its easy to its a bitch. Order should be here Today from Summit. Oil feed line is gonna be -4 AN from the filter housing to the turbo. Coolant feed line is gonna be -6 AN from the manifold to the turbo. I also did find a fitting that will take 3/8" NPT down to -4 AN so that should work well. The link is:

http://store.summitracing.com/defau...t&Part=aer-fcm2519&Search.x=1&SearchType=Both

I'll let ya know on mine as well. :D
 

sy2185

New member
Yeah mike, I agree that -6 is a bit over the top, but all I had to get was the turbo adapter and go with -6 that I already had or buy all new hose and fittings in -4. Oh well.
As for removing the filter plug I didn't have the right tool so I used the square end of an old tap I had lying around that happened to be the right size. Grabbed the other end w/ a wrench and I was home free. As for the hose end assembly, yeah, it can be a pain but only until you get the hang of it. HuRyde did it with Earl's(or Aeroquip) push-lok ends. Now thoses sound like a bitch; don't you have to heat them or the hose up to put 'em together?
With the stainless pro-flex,etc. lines just wrap where you're going to cut with a few tight wraps of electrical tape.
Then Secure the hose to your vise or even better to your chop saw's table.
I wouldn't recommend cutting the hose by hand in a vise if you're learning how to do it. And by all means never use any kind of knife,hacksaw or snips,etc. All these will do is fray the ends making that cut useless.
It can be done with a 4" grinder in a vise but get the thinnest blade you can and look for a smooth edged metal blade if possible instead of a woven disc style blade. It cuts much cleaner w/o tearing.
Cut in the middle of your elec. tape wrap. The tape along with a good blade and straight cut keeps the braid from fraying.
Get your end of choice and unscrew the bottom piece(red on Earl's stuff).
now remove the tape from the hose(I roll it off- unwrapping makes it fray)
and push the fitting onto the cut end with the threads pointing away from the hose. Make sure you get all of the hose and it's braid into the end. Keep watch for a run or unraveling.
Here's the tricky part:you want to insert the hose far enough into the end that the other piece of the fitting(blue)can bite into it(making the seal) but not so far as to have the hose bottom out before the 2 end pieces are night. As you assemble the two end pieces the hose should be held tighter and tighter until the hose is just right when the fitting reaches it's recommended torque just as it bottoms out against the hose inside it.
Practice makes perfect, but after a while it only takes a minute to assemble the ends.
You'l prolly also need some aluminum smooth vise jaws(don't want to tear up the ends, though they'll work just as good) a set of single sided aluminum AN wrenches, and some asembly lube(I use the same Mobil 1 out of the SY). Before you screw the 2 pieces of the hose end together put several drops of oil on the threads so the alum. doesn't gall.
Keep the cuts straight and consider a presure tester until you're confident. Then all you need is a truck full of cash. I could send you pics if you needed them, it's not hard just complicated if that makes any sense.
Jeremy
 

ghettosled

SYTY SUPERSTORE
-4 hose is a pain in the ass to assemble. Anything larger is pretty easy if you know what you are doing. Bigger the easier. The push lock hose is simple to use. No heating, etc required. Just a little lube to help slide the hose over. Just depends on what look you are going for.
 

Coloty

New member
Mike,

I hear ya on that one. Just finished assembling my -4AN hose yesterday. I used a dremel cut-off wheel and it still was always screwed up. Seemed like the SS braid just kept wanting to separate and un-ravel from the rubber hose portion so I had to trim it a little with tin snips and wire cutters. But, I got it after 40 minutes or so and both ends were on and secure. I used Earl's Auto-fit hose ends. I found a piece of 5/16" square stock at Home Depot and bent it into an "L" shape. It worked perfectly to remove that plug from the oil filter housing. Now I just need to get the old oil feed hose out of the truck, ie... find where it attachs to the block and cap that off with a 1/4" NPT plug and I'm all set. Hopefully that is easy....cuz I need an easy project Today. :D
 

ghettosled

SYTY SUPERSTORE
the stock feed attaches above the stock oil filter mount on the ds back of the block. The line goes up and around the block(on top of the bellhousing). It is held into place by 1 bolt that attaches to the back of the head, then the -4 on the turbo..
 

Coloty

New member
Well got everything installed. Oil feed line turned out real nice, coolant feed line is nice, but I jacked up the hose ends a little with the wrench trying get them on tight. Would be a lot easier with the lower manifold out of the truck trying install the frickin 90 degree fitting from the thermostat.... oh well I'll redo it when the motor is out one of these days. Talked with a guy who showed me a little trick with some paint and a q-tip to touch up the blue anodized hose ends to fix them up, I could not tell he had touched his up. Thanks for all the help on this little project. FYI.....I have all the part numbers for this on an excel spreadsheet if anyone would like to do this................looks real nice and clean. Just PM or IM me with your e-mail and I'll send them to you :D
 
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