Welcome to the North American Subaru Impreza Owners Club Saturday August 29, 2015
Home Forums WikiNASIOC Products Store Modifications Upgrade Garage
NASIOC
Here you can view your subscribed threads, work with private messages and edit your profile and preferences Home Registration is free! Visit the NASIOC Store NASIOC Rules Search Find other members Frequently Asked Questions Calendar Archive NASIOC Upgrade Garage Logout
Go Back   NASIOC > NASIOC Technical > Factory 2.5L Turbo Powertrain (EJ Series Factory 2.5L Turbo)

Welcome to NASIOC - The world's largest online community for Subaru enthusiasts!
Welcome to the NASIOC.com Subaru forum.

You are currently viewing our forum as a guest, which gives you limited access to view most discussions and access our other features. By joining our community, free of charge, you will have access to post topics, communicate privately with other members (PM), respond to polls, upload content and access many other special features. Registration is free, fast and simple, so please join our community today!

If you have any problems with the registration process or your account login, please contact us.
* Registered users of the site do not see these ads.
Reply
 
Thread Tools Display Modes
Old 11-24-2009, 07:03 PM   #1
w8ing25
Scooby Newbie
 
Member#: 157139
Join Date: Aug 2007
Chapter/Region: RMIC
Location: Colorado
Vehicle:
2005 Impreza WRX STi
Blue

Default Got the car back from the shop....and it burns more oil than usual

I put my car (05 STi w/ 49,000 miles) in with the local shop a while back ago to have the following done:
Install GT35R (Precision)
Fab rotate kit
Fab air intake
Fab full exhaust
Install fuel injectors (I think 880's)
Install FMIC
Install BPV
Install oil catch can

The car had been in the shop for 4 months or so before I got it back, and when I got it back it leaked oil and smoked often, but not all the time. I took the car back in the shop to have the oil leaks fixed, to which they did fix, but the car still smokes. I know the car is burning oil because I have to put at least a quart in every week, if not more, depending on mileage that week.

The shop initially thought the oil catch can plumbing (that's my term) may not be connected correctly, so they disconnected it entirely, and still the car smokes. The theory now is that the new turbo may be faulty. I am told that we need to send the turbo in to Precision to verify the seals are good, but I have to go without my car now for several weeks which is a hardship on me at this point. My truck recently broke down and I have no desire to invest money into it since its 20+ years old.

To elaborate on the oil consumption/burning, I notice smoke coming from my tailpipe SOMETIMES while sitting at a stop light. I also notice it SOMETIMES while driving. My oil on the dipstick looks normal. I know I could put the car in the shop to do a compression test, but the shop I use has not suggested it, nor do I believe it is bad o-rings.

I don't have detailed information on the parts that were added on. I let the shop deal with what model/manufacturer to use, etc.

With all that said, I'm sure I'm leaving something out, but I'm confident this forum will point that out to me quickly.

My questions are:
What else could be causing my car to be burning oil?
Would sending the turbo in to the manufacturer be the first place to start?

Thank you in advance for any help you can provide. I am fairly ignorant when it comes to turbo and all accessories related.
* Registered users of the site do not see these ads.

Last edited by w8ing25; 11-24-2009 at 07:08 PM.
w8ing25 is offline   Reply With Quote
Sponsored Links
* Registered users of the site do not see these ads.
Old 11-24-2009, 07:15 PM   #2
moorebl
Scooby Specialist
 
Member#: 59238
Join Date: Apr 2004
Chapter/Region: SWIC
Default

they are called ring lands, sti's do this when you run the piss out of them
moorebl is offline   Reply With Quote
Old 11-24-2009, 07:33 PM   #3
Uncle Scotty
Scooby Guru
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK buy Nates beans
westcoastroasting.com

Default

it got joyrided and blowed up
Uncle Scotty is offline   Reply With Quote
Old 11-24-2009, 07:39 PM   #4
sidewayz
Scooby Specialist
 
Member#: 5810
Join Date: Apr 2001
Chapter/Region: Tri-State
Location: Easton PA
Vehicle:
2001 S366 2.5RS

Default

35R+ STOCK STI... dumb
sidewayz is offline   Reply With Quote
Old 11-24-2009, 08:19 PM   #5
DHRDAN
Scooby Specialist
 
Member#: 204358
Join Date: Feb 2009
Chapter/Region: SCIC
Location: Santa Paula, CA.
Vehicle:
01 2.5RS W/ EJ257
Black

Default

Finish the compression test. Only way to really know.


Tell them you know something is wrong, a quart a week is A TON! compression test.
DHRDAN is offline   Reply With Quote
Old 11-25-2009, 12:18 AM   #6
TDagen
Scooby Specialist
 
Member#: 163648
Join Date: Nov 2007
Chapter/Region: MWSOC
Location: Minnesota, mpls
Vehicle:
2002 Wrx,5.3L,S476r
FNF LSX Swap,E85 and more

Default

Before everyone gets all carried away, lets see some pictures. Is the turbo sitting tipped back at a bit of an angle? If the turbo is angled back too much ( not sitting level ) it will burn some extra oil , this oil will make its way out your exhaust as smoke , SOMETIMES, not always...So lets see some pics.
TDagen is offline   Reply With Quote
Old 11-25-2009, 10:17 AM   #7
WolfPlayer
Scooby Specialist
 
Member#: 65054
Join Date: Jun 2004
Chapter/Region: MAIC
Location: Frederick, MD
Vehicle:
2005 STI (CGM)
Descooped / Dewinged

Default

What shop did the work and who tuned it?

t
WolfPlayer is offline   Reply With Quote
Old 11-25-2009, 01:02 PM   #8
DrewDeezy
Scooby Specialist
 
Member#: 160279
Join Date: Sep 2007
Chapter/Region: NWIC
Location: Richland, WA
Vehicle:
2004 STi
Crawford Performance

Default

Quote:
Originally Posted by Uncle Scotty View Post
it got joyrided and blowed up
QFT.

Quote:
Originally Posted by sidewayz View Post
35R+ STOCK STI... dumb
not necessarily. There are a few STi's with 35r's with stock motor and still running strong, check modaddicts 400hp motor with 2 different 35r setups on it, perfect compression after 25k+ miles.
DrewDeezy is offline   Reply With Quote
Old 11-25-2009, 02:35 PM   #9
simonella_virus
Scooby Specialist
 
Member#: 183875
Join Date: Jul 2008
Chapter/Region: E. Canada
Location: waterloo, ON
Vehicle:
2007 WRX STi Stg2
WRB

Default

oh man, that's horrible. my worst nightmare when surrendering my car to any mechanic- is that something like this happens.
simonella_virus is offline   Reply With Quote
Old 11-25-2009, 03:24 PM   #10
phlegmon
Scooby Specialist
 
Member#: 26223
Join Date: Oct 2002
Chapter/Region: SWIC
Location: Tulsa
Vehicle:
2012 GTR - on E85
07 STi twinscroll XTR

Default

Make sure you have the proper restrictor at the oil inlet line to the turbo CHRA. The dual ball bearing turbos only need a *trickle* of oil to run properly compared to the Mitsu or IHI turbos. If you don't have the proper restrictor, you will push oil past the rear seal which will cause smoking.

Also, DEFINITELY get a compression (and leakdown) test done. The stock STi hypereutectic cast pistons are on borrowed time with a 35r (and even on a stock turbo if the tune isn't ideal). A quick (and notoriously insensitive) test is to let the car run and open the oil filler cap. If exhaust is puffing out, you likely have a broken ringland (However, normal rapid "puttering" out of the fill cap is normal- there shouldn't be any exhaust, though).

Finally, you might want to check your catch can plumbing and make sure it's routed correctly. Also, make sure the diameter of the catch-can hoses is BIG- at least the size of stock, if not bigger. The old Perrin catch-cans (with the tiny hoses) actually caused excessive crank-case pressure!

Check and/or replace your PCV is you haven't done so at that mileage.

Good luck.
phlegmon is offline   Reply With Quote
Old 11-25-2009, 03:31 PM   #11
mpsti05
Scooby Specialist
 
Member#: 86741
Join Date: May 2005
Chapter/Region: MWSOC
Location: Chicago
Vehicle:
05 STi.. Built
twinscroll35r Love/Hate

Default

Send the turbo to precision and have it inspected might have a blown chra

Last edited by mpsti05; 11-25-2009 at 11:56 PM.
mpsti05 is offline   Reply With Quote
Old 11-25-2009, 06:51 PM   #12
STi Mikey
Scooby Specialist
 
Member#: 114631
Join Date: May 2006
Chapter/Region: Tri-State
Location: TheShopCT / EFI LOGICS
Vehicle:
2009 GTR, 735whp
13' Benz, 15' WRX

Default

Quote:
Originally Posted by Uncle Scotty View Post
it got joyrided and blowed up
In all honesty, and unfortunately, probably
STi Mikey is offline   Reply With Quote
Old 11-25-2009, 11:39 PM   #13
w8ing25
Scooby Newbie
 
Member#: 157139
Join Date: Aug 2007
Chapter/Region: RMIC
Location: Colorado
Vehicle:
2005 Impreza WRX STi
Blue

Default Thank You

Thanks everyone for their advice. "Ring lands" is something I am unaware of, but will begin researching them. If they failed due to the way I drive, I will have to say they must be weak. I wouldn't say that I rag my car out, but at the same time I do baby it more than anything else. It's always garaged, has low mileage and it wasn't smoking before I put it in the garage.

I will check into the compression test just to relieve my mind. I'd hate to see or hear that my rings are blown. I'd look to the shop for an explanation if that's the case.

Uncle Scotty...I don't believe "it got joyrided and blowed up" because it started smoking almost as soon as I picked it up, and it didnt have the best tune on it when I picked it up. I just assumed it was residual oil burning off at first. I had to keep the RPM's below 4000 until I could get it to another shop for a tune. I know that doesn't prove it got joyrided, but I was at the shop at least once every week towards the end and watched them put the car back together. It wasnt even ready when I went to pick it up and had to wait 1+ hour.

Phlegmon...After reading some other posts and before I posted this thread, I suspected the oil restrictor, so I'm glad to see someone else suspected the same. Unfortunately, I'm not sure what size (assuming one was installed) is on the turbo, but hope to find out after Thanksgiving.

As for the oil catch can, I need to find out how a Greddy is supposed to be connected. As I said earlier, it's disconnected now but I'd like to connect it just to eliminate that as a possibility.

Sidewayz...disagree. I wanted the bigger turbo so that after the engine was built, I could dial up the turbo without having to buy a new one.

TDagen...I'll try to get the pics up of the turbo. When it was in the shop, he originally had it mounted at a sharp angle for a couple months, but ultimately decided to cut that angle some. Once I noticed the smoke and knew it wasn't due to an oil leak, my thoughts went back to the original angle he had it mounted and wondered if oil seeped past the seals causing damage. I don't know...and all I'm doing is speculating.

WolfPlayer...I don't want to smear a shop's name at this point, especially if it turns out to be the turbo and nothing they did. Let's just say it is a local Colorado shop though that specializes in import modifications. I know my STi is not the first one he has ever touched and felt comfortable with them working on my car. I've seen some of their work and am satisfied with what they do.

I hope I covered everything. Thanks again everyone for their comments and suggestions.
w8ing25 is offline   Reply With Quote
Old 11-29-2009, 03:43 PM   #14
w8ing25
Scooby Newbie
 
Member#: 157139
Join Date: Aug 2007
Chapter/Region: RMIC
Location: Colorado
Vehicle:
2005 Impreza WRX STi
Blue

Default Pics

Here are a couple of pics as promised. No new update to give. Hope to have a used TrailBlazer soon, allowing me to put the Subi back in a shop to finally resolve.


w8ing25 is offline   Reply With Quote
Old 11-29-2009, 03:54 PM   #15
E85 WRX
Scooby Newbie
 
Member#: 219412
Join Date: Aug 2009
Location: Chico
Default

Does the car idle rough? Why not once its started and warmed up, open the oil cap, see if you have any smoke comin out of the oil cap?
E85 WRX is offline   Reply With Quote
Old 11-29-2009, 04:50 PM   #16
Uncle Scotty
Scooby Guru
 
Member#: 16200
Join Date: Mar 2002
Vehicle:
OK buy Nates beans
westcoastroasting.com

Default

^^^^^
raw exhaust out the oil filler is bad juju

coolant temp sensor bad??
Uncle Scotty is offline   Reply With Quote
Reply

Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump

Similar Threads
Thread Thread Starter Forum Replies Last Post
Got my car back from the shop!! Before and after pics kyleblix Member's Car Gallery 22 11-26-2007 01:06 AM
So, I just got my car back from the body shop and . . . HoRo1 Southern California Impreza Club Forum -- SCIC 6 10-23-2004 08:49 PM
Got the car back from the shop, and I need advice. joltdudeuc Normally Aspirated Powertrain 4 06-14-2002 03:41 PM
Just got the car back from the body shop Slvrblt New England Impreza Club Forum -- NESIC 6 04-26-2002 03:34 PM
So I finally got my car back from the body shop, after two weeks and... JGard New England Impreza Club Forum -- NESIC 8 03-23-2002 09:03 AM


All times are GMT -4. The time now is 04:21 AM.


Powered by vBulletin® Version 3.7.0
Copyright ©2000 - 2015, Jelsoft Enterprises Ltd.
Powered by Searchlight © 2015 Axivo Inc.
Copyright ©1999 - 2015, North American Subaru Impreza Owners Club, Inc.