s480 oiling issue
Thread Starter
Staging Lane
Joined: Jul 2014
Posts: 65
Likes: 0
s480 oiling issue I'm having some issues with my new turbo. I was told I need to run a 4an feed and 12 an drain which I have. Frist start up and few miles went fine. after about 12 miles It started smoking so I pulled the exhuast off and there is oil leaking into the housing. I have to run a 45* fitting to clear my hotside and a 90* to get into the pan-the bung in the pan is as high as it can be. With the car level on Jack stands no oil comes out of the bung with the drain line off, but the car don't sit level on the ground. I can't get anymore angle on the drain line and the turbo is as high as it can go without hitting the hood so I have a bit of fall in line about 4 inches. Has anyone had to run a restrictor with a bw s480? The car does have a high flow oil pump.
Launching!
Joined: Oct 2006
Posts: 201
Likes: 0
From: Grand Rapids, MI
If it is only the exhaust side, you may have just hurt the turbo. Definitely confirm that there is no oil in the intercooler or anything like that. You may need a restrictor in the feel line, and if its coming out both sides simultaneously, you will DEFINITELY need one.
Hard to say for certain without inspecting the turbo.
Jack
Hard to say for certain without inspecting the turbo.
Jack
The absolute best way would be to measure the oil pressure at the feed fitting and measure that against what Borg Warner calls for max pressure. I had the exact same issue as you on my Garrett, and I put a 0.060 restrictor on it, and it hasn't smoked or blown up ever again.
Trending Topics
LS1 Tech Stories
The Best V8 Stories One Small Block at Time
6 Common C5 Corvette Failures and What's Involved In Repairing Them
Pouria Savadkouei
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph
Verdad Gallardo
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked
Pouria Savadkouei
Top 10 Most Powerful Chevy Trucks Ever Made!
Hennessey's New Supercharged Silverado ZR2 Has 700 HP
Verdad Gallardo
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes
Verdad Gallardo
Awesome K5 Blazer Restomod Comes With C7 Corvette Power
Verdad Gallardo
10 Camaros You Should Never Buy
10 LS Engine Myths That Refuse to Die
Verdad Gallardo Thread Starter
Staging Lane
Joined: Jul 2014
Posts: 65
Likes: 0
Will do that is the easy thing to try.I'm still learning with the ls type motor. I have had some other turbo cars but they didn't make much power and had smaller turbos.I guess I just was able to get away with not venting much on them
I dont care who says not to run a restrictor on a borg but I run a .070 as my melling high volume pump is just too much oil pressure with a -4 feeding and -12 draining. Never had an issue, borg has been on the car for a year and beat the crap out of it.
TECH Enthusiast
Joined: Mar 2010
Posts: 519
Likes: 2
Betting this is a crankcase venting issue.
Soon as my catch can would fill up with oil/water my turbo would smoke. Once emptied it wouldn't smoke again unless I filled that can by accident again.
This was a brand new tc7875 on a completely stock ls1.
Soon as my catch can would fill up with oil/water my turbo would smoke. Once emptied it wouldn't smoke again unless I filled that can by accident again.
This was a brand new tc7875 on a completely stock ls1.