Forced Induction Superchargers | Turbochargers | Intercoolers

Oil pan return drain fitting help!!!

Thread Tools
 
Search this Thread
 
Old May 6, 2015 | 09:33 PM
  #1  
kwrench61's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Jun 2014
Posts: 193
Likes: 2
From: Ft. Myers.FL
Default Oil pan return drain fitting help!!!

Hi,assembling my 6.0 LQ4 for install and I need to find the right fitting to install for turbo oil return in pan. My stock pan has an oil level sensor,I was hoping to use that existing hole for fitting and I know I saw an exact fitting one somewhere but can't find again for ****. Please help!!!! Have adapter plate for supply next to where oil filter goes already to feed twins. Also I've been seeing "restricters" here and there. Will I need to put one on return side to slow down oil for lube and cooling purposes?? Thanks
Reply
Old May 6, 2015 | 10:22 PM
  #2  
66Chevellelq4's Avatar
TECH Apprentice
 
Joined: Jan 2014
Posts: 362
Likes: 1
From: Torrance Ca
Default

DO NOT RESTRICT DRAIN. If you use a restrictor (which some turbos dont need, talk to the guy your buying it from) they go on the feed side. You want the drain to be a big line with a straight shot
Reply
Old May 6, 2015 | 10:27 PM
  #3  
johnminer's Avatar
On The Tree
 
Joined: Jul 2005
Posts: 125
Likes: 0
From: North Dakota
Default

Originally Posted by kwrench61
Hi,assembling my 6.0 LQ4 for install and I need to find the right fitting to install for turbo oil return in pan. My stock pan has an oil level sensor,I was hoping to use that existing hole for fitting and I know I saw an exact fitting one somewhere but can't find again for ****. Please help!!!! Have adapter plate for supply next to where oil filter goes already to feed twins. Also I've been seeing "restricters" here and there. Will I need to put one on return side to slow down oil for lube and cooling purposes?? Thanks


From the reading i've done you can't install a return where the stock oil level sensor is because you need the return line to be above the oil level or it will back up into the turbo. You want to drain as much HOT oil out of the turbo as possible to allow the fresh oil from the feed to lube it. You need to weld a bung or tap a hole above the oil level.
Reply
Old May 6, 2015 | 10:53 PM
  #4  
Meth Sled's Avatar
Launching!
iTrader: (1)
 
Joined: Feb 2015
Posts: 203
Likes: 0
From: Houston, Texas
Default

Originally Posted by johnminer
From the reading i've done you can't install a return where the stock oil level sensor is because you need the return line to be above the oil level or it will back up into the turbo. You want to drain as much HOT oil out of the turbo as possible to allow the fresh oil from the feed to lube it. You need to weld a bung or tap a hole above the oil level.
This, wherever you place your return, it must be higher than your oil level, or else it will back up with oil. Last one I did was drilled and tapped a hole in a truck pan just below the crank pulley.
Reply
Old May 6, 2015 | 11:05 PM
  #5  
bluecatfish's Avatar
Teching In
 
Joined: Sep 2014
Posts: 27
Likes: 0
Default

Here is were my -10 bung is welded on my F-Body pan
Reply
Old May 6, 2015 | 11:23 PM
  #6  
mkvamso's Avatar
8 Second Club
15 Year Member
iTrader: (2)
 
Joined: May 2010
Posts: 735
Likes: 1
Default

I've got two -12 drains just below the crank pulley in the front of the pan
Pretty easy to get them threaded in and everything clean with the timing cover off
Reply
Old May 7, 2015 | 06:06 AM
  #7  
forcd ind's Avatar
TECH Veteran
15 Year Member
Liked
Loved
Community Favorite
iTrader: (7)
 
Joined: Sep 2007
Posts: 4,188
Likes: 293
From: woodbine, md
Default

I was able to put a drain in right below the balancer-tight fit but does clear
Reply
Old May 7, 2015 | 01:25 PM
  #8  
kwrench61's Avatar
Thread Starter
On The Tree
iTrader: (1)
 
Joined: Jun 2014
Posts: 193
Likes: 2
From: Ft. Myers.FL
Default

Thanks guys. The return above oil level mades good sense,I'll just leave sensor in and drill elsewhere.
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

 Brett Foote
story-1

Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

 Pouria Savadkouei
story-2

Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

 Verdad Gallardo
story-3

7 Most Reliable High-Performance Engines GM Has Ever Built

 Verdad Gallardo
story-4

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-5

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-6

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-7

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-8

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-9

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo




All times are GMT -5. The time now is 06:36 AM.

story-0
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-1
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-05-28 11:05:11


VIEW MORE
story-2
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-3
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-4
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-5
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-6
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-7
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-8
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-9
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE