Will this work? My car smokes due to a smallish oil return setup (which im about to fix), but would placing a nitros jet also fix my smoking issues and make sure I dont have anymore? My car smokes at idle and VERY little @ WOT if im cruising and then quickly change gears and jump on it....but here is the deal, if I put it into 3rd @ 65MPH and hang around at that RPM for about a minute like pacing someone, and THEN go WOT...there is a pretty large smoke cloud behind me and it stays with me through 3rd and 4th just pouring smoke out. And then will slowly go away after about a mile of driving, and doesnt smoke anymore. If im going red light to red light just cruising and sortof rev through a gear to say 4K and then let off the gas and let teh RPMs come back down, when I stop it smokes pretty bad at idle. However if I stay at low RPMs the entire time my car just barely smokes at idle. So apparently its not getting out of the turbos fast enough...or too much is going in and leaking out of the seals. All I know is that its VERY annoying and embarissing and I am going to fix it one way or another.
A person I met at a mustang meet suggested the use of the nitrous jet because according to him turbos get more than enough oil. But i wanted to see if this is a common practice before I do it...and if its SAFE. This would fix my problem, but will it starve the turbo of oil?

Oh and NO this isnt the HP kit...this is a custom setup with the turbos mounted high in the engine bay on my 2004 GT mustang. I have 3/4 inch hose, but the ID of the lines that it plugs onto is probably 3/8s if that. So Im goibng to drill them out larger, but if I can just restrict the oil comeing in also, ill do that too to make SURE it doesnt smoke anymore.

Thanks in advance!

 

Lets look at your drain problem before you restrict your oil flow.... Try this little experiment, find a boost/vacuum gauge and connect it directly to your oil dipstick tube! We are looking for a positive pressure inside your crank case..IE positive (blowby) think of it, your oil needs to gravity drain back into your engine. If you have blowby trying to get out your drain fittings, the oil has no place to go. Therein could be a cause for your oil issue...I had that exact same problem till I put a crankcase evac pump on it..no more oil issue.

 

Yeah, check the drain first. Also, you can unhook the drain from the oilpan, and let the oil drain straight to a pan on the floor. Put the car up on blocks or a lift, start the car up, and watch how much oil comes out the turbo drain. If the turbo stops smoking, it is a drain problem. If it still smokes and there's plenty of oil coming out, then restrict the turbo. A .060" orifice is a good place to start. I have my turbos restricted to .060" for TWO turbos. Ball bearing turbos require less oil than thrust washer turbos, but neither requires a lot of oil, especially if you have high oil pressure from a high volume oil pump.

 

Thanks guys! And yea when I had 1/2 return lines (solid) we unhooked one and cranked it up...after a few seconds here it came...like a darn garden hose . It wasnt quite full force but darn near...we were surprised at how much oil was coming out, and this was just at idle.
We had a 3/8s on there originally and that caused ALOT of oil loss through the exhaust...we tested it too and it was FULL force coming out of there.

I think the problem really is where its coming out of the turbo..the opening is maybe 3/8s and I think its backing up there. If I drill it out larger im sure that will help alot.

Thanks for the input guys and keep it coming. Also what type of .060 restrictors are you using and where did you buy them from?

 

I'd go with 3/4" return line or hose somehow. The fitting in the turbo may be small like 3/8, but it backs up quick, use a -3 line to feed and a -12 return and you should be good...

 

What weight oil are you running?

 

5 W 20 as recommended in my manual. (and nice avatar )

I drilled the flages out to the largest drill bit I had...definatly over 1/2. Hoses are 3/4 BTW they just fit over the fittings. That definatly did help, but it didnt solve the issue. Starts smoking @ around 5K @ WOT and still some @ idle...but its juts not nearly as much.

Im thinking a .060 restrictor may be too small. It could clog very easy im sure. Anyone using anything a bit bigger?

 

+1 on the -3 feed and -12 return.

Many have not gone this route and in return get a smoking turbo.

 

This is what I use. Works great!

http://cgi.ebay.com/ebaymotors/F7-T...ryZ33742QQihZ006QQitemZ160120951984QQtcZphoto

 

^ Thanks....thats actually a .062 restrictor. So im guessing a .060 will work fine. I really dont want to redo the return lines as currently I dont have a way to make the flange larger, not to mention that pan hole is about the size of my current flages hole....so I think im going to give the restrictor a shot and see what happens. Thanks all for your help and if anyone has anymore input its most definatly welcome.

 

Well I just got my 1/8 NPT .060 restrictors in...BUT THEY WONT FIT! Threads are wrong and its too small as a whole. It said "works with T3-T4-T104E ect." But clearly the threads are different than the ones from the link Ackbar00 posted....and it also says works with t3 t4 and T104E ect.

SO what the heck? Are my threads -4AN or something else....because I know they are not 1/8 NPT, even though when I bought them thats what the oil feed was listed as. All I know is that its VERY annoying. Help please and let me know what all turbos come with. Mine are T3/T104E Hybrids.

EDIT: Im not going to worry about it. Im just going to find a plate restrictor like Ack linked...I just didnt like that idea and wanted to find one to screw in, but im fed up. Anyone know of another place to get one....ebay seems to be fresh out of the - 4AN size.

 

post some pictures of what you are talking about. If your turbo's have -4 inlets, you'll need some adapters.

 

Ok, here are the threads in the turbo....weird, and definatly not AN or NPT. But im ditching trying to find something that will screw in and will just go with a plate.

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And here is my newest question lol. I dont know if my fittings are -3 AN or -4 AN here are 2 pics.

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And this is the AN fitting on the right compared to the 1/8 NPT restrictor on the left. Can anyone tell me based on this if the right fitting is a 3 or 4 AN?

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THANKS!

 

You'll either have to adapt that AN fitting to 1/8 NPT, then back, or switch to a restrictor flange like Function 7 sells.

This is what I used with my last turbo. I now use a fitting just like yours. I have an AN to 1/4 NPT, 1/4 NPT to 1/8, the restrictor, then 1/8 to flare.

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Thanks Explorer! I have figured out that my fittings threads are 7/16 outside to outside, and according to areomotive thats a 4 AN fitting I have....which means my oil supply line fittings must be 4AN. If not ill just spend another $35 and buy 3AN plates from function7 the next time LOL.
It doesnt matter because my front Tokico strut broke in half, nearly pulling my coilover spring out...which would have been VERY VERY bad....so the car is down right now. The crappy Tokico drag struts just cost me $700 in parts to replace the coilover kit with MM stuff/new springs and to get Bilstein struts.

 

The AN/JIC end is -4 (its stamped right on the nut)

As for the other end of the adapter, thats ORB(o-ring boss), couldnt tell you the size from the picture though.