5.3 turbo oil lines, Feed and return?
Thread Starter
On The Tree
Joined: Mar 2010
Posts: 153
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From: SpringCity Tn
5.3 turbo oil lines, Feed and return? Im building A 5.3 with a th400 trans and a single turbo Precision 60mm t4 turbo. This is going to be a blow threw carb setup. I have read several posts on oil feed and return for the turbo, altho most are for the rear mount turbo's Which require and additional oil pump. Mine is a Front mount setup, Single feed and return line. Can I get the oil feed from the oil sending unit on top of the intake? or is it better to get the feed from the GTO oil pan, on top of the oil filter (where that 3/8 fitting is 90 degree's?) Also on the oil return? I have read some put it in the timing cover? can I put it in the top front of the pan?
Just trying to figure out the best locations so I don't fry my turbo right off the bat.
Just trying to figure out the best locations so I don't fry my turbo right off the bat.
What about the return going into the "low oil level" sensor spot? Passenger side by the starter.
I'm not using this sensor on mine (swap car) and am looking for ways to route the return without tapping into anything if i can avoid it.
I'm not using this sensor on mine (swap car) and am looking for ways to route the return without tapping into anything if i can avoid it.
I agree with LS1 Nova on this. The front will be your best spot up near the top in the front of your pan ,so it can drain down into the pan If its at or under your oil level the gravity drain setup wont work unless your drain hose is seeing air at the oil pan and will cause your turbo to smoke.You can actually put it anywhere on your pan as long asd its above your oil level .But the front is still the best location IMO beings you cant go wrong locating your drain there!
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I did both.
the oil sender,
http://www.stevesnovasite.com/forums...1&postcount=88
and the filter mod
I ended up using the top one for oil send to my oil pressure gauge and the bottom one for the turbo, only because the line I had was the exact length to that location(6 ft line)
I took off the push lok fitting and used an npt male-male adapter. very easy
the oil sender,
http://www.stevesnovasite.com/forums...1&postcount=88
and the filter mod
I ended up using the top one for oil send to my oil pressure gauge and the bottom one for the turbo, only because the line I had was the exact length to that location(6 ft line)
I took off the push lok fitting and used an npt male-male adapter. very easy
Thread Starter
On The Tree
Joined: Mar 2010
Posts: 153
Likes: 0
From: SpringCity Tn
Thanks, that's kinda what I had in mind, my oil pressure gauge on top from the original pressure sensor, and the feed down at the pan. What size turbo is that? Looks very similar to mine.
yeah, the top one is almost a straight shot to the oil pressure gauge inside the car. use a 4 ft braided line.
if you use a t, you can also mount your warning light fitting in the top one.
its a mp t70, .96 AR
if you use a t, you can also mount your warning light fitting in the top one.
its a mp t70, .96 AR
Staging Lane
Joined: Dec 2015
Posts: 65
Likes: 1
Restricted User
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
You just replied to a 6-year old post.
And your turbo needs to drain above the oil level, not below it. If oil backs up in your return line because it can't drain fast enough, you'll destroy the turbo.
And your turbo needs to drain above the oil level, not below it. If oil backs up in your return line because it can't drain fast enough, you'll destroy the turbo.
Staging Lane
Joined: Dec 2015
Posts: 65
Likes: 1
i know its a 6 year old, this is my 1st build ever, and this is the one question that everyone ask and no one has proof that it works, yet i know of one guy that has done it, so i want to do it for myself to see if it works, they way i see it is that the oil level sensor goes off when the oil is 1 qt low, and when engine is running oil is being pumped thru the motor, which means less oil is in the pan anyway, and with twin turbos even more oil is being pumped up, therefore oil should be able to drain back in the pan with out any issues, and only one way to find out is to do it and record it to prove that it will or wont work,
Why ask a question, only to be told by the guys who have done this before, and then not listen to the guys you asked? This topic has indeed been covered, proved and beaten to death. There has to be no less than 1,000 pictures of drain locations on the site alone.
It's your theory, run with it.
It's your theory, run with it.
Restricted User
Joined: Mar 2014
Posts: 7,192
Likes: 109
From: Ohio
Just search for people having issues with oil in their turbo because of poorly placed return fittings. Lots of people have had oil blowing out of their exhaust or into their intake because of stuff like this. For some guys it works, for others it doesn't. Placing it below the oil level line also means your oil will have air in it, which isn't good either.
Your theory that while the engine is running, it will have less oil in it and it'll work fine makes absolutely zero sense. If that were the case, the oil level light would always be on while the engine is running. But since it isn't, then logic would dictate that your return location is going to be below the oil level, even with the engine running.
Your theory that while the engine is running, it will have less oil in it and it'll work fine makes absolutely zero sense. If that were the case, the oil level light would always be on while the engine is running. But since it isn't, then logic would dictate that your return location is going to be below the oil level, even with the engine running.