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Old 01-17-2013, 02:05 AM   #1976
_davin
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Originally Posted by The_TIP View Post
Having to stop and chip ice out of my rims and calipers, every time it snows... otherwise it'll cause violent vibration at driving speeds. First time it happened I was sure I threw a weight and would have to get my wheels re balanced.
Go to Mt view bay wash and spray it out.
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Old 01-17-2013, 02:42 AM   #1977
Rakaz
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Broken ringland and blown turbo
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Old 01-17-2013, 11:57 AM   #1978
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Whhhaaa?! Sounds like 2008 STI problems. What's the deal?
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Old 01-17-2013, 12:14 PM   #1979
Nomadgene
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Broken ringland and blown turbo
Ouch. Was that before or after the methanol kit install.
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Old 01-17-2013, 02:38 PM   #1980
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Broken ringland and blown turbo
No good, forced rebuilds suck. Was it at least a stock turbo?
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Old 01-17-2013, 03:59 PM   #1981
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It happened to my 07. It happened after I installed the meth kit. I haven't read anything that suggests that the meth kit would have caused this but who really knows.
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Old 01-17-2013, 04:00 PM   #1982
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Originally Posted by White_Rice View Post

No good, forced rebuilds suck. Was it at least a stock turbo?
Yes it was the stock one
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Old 01-17-2013, 04:23 PM   #1983
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No to ask a possibly dumb question here but was it tuned for the meth injection?
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Old 01-17-2013, 05:42 PM   #1984
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No to ask a possibly dumb question here but was it tuned for the meth injection?
Here is a dumb answer to your question. No it wasn't. I had the meth turned down so it only came on at higher boost though. Do you think that not having it tuned could cause the ringland to fail?
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Old 01-17-2013, 05:50 PM   #1985
ridestreet84
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I'm not surprised that an 07 Sti had a ringland failure, hell I broke two of mine on a stage 2 tune
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Old 01-17-2013, 05:59 PM   #1986
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Very unlikely but possible. All meth/water does is cause the car to run rich(initially), the effect is .5 on the AFR scale or more. So if the car was running 10.5:1 then with the meth on it would see 10:1. The other effect from being too rich and or not adding timing is spark quench (feels like misfires when meth comes on, check engine light flashes).

When most of us tune for meth/water we lean the system out and add some ignition timing. Other things happen as well but that is the basic idea.

Now without getting too overly in depth, IF by chance the meth was coming on earlier then just high boost then your car could learn to trim fuel (lean the system) globally above a certain load. In essence auto tune itself. I still doubt this would have damaging effects unless after the car leaned it self out your meth/water quit flowing for some reason. The car will also add timing (if the stars line up) over time and with meth/water flowing the system would think it had higher octane fuel and it may add extra ignition timing that could be also bad if you had a sudden stop in meth flow.

Since stock or near stock motors seem to break ring lands as well its kind of a moot point to try and decide what causes this as it can be about 10 other things that can lead up to a failure. My vote is that the water/meth did nothing to cause the fail.

NOTE: What ever you do and who ever builds your motor again needs to make sure the problem is isolated or identified and not brought back in your new motor. Examples we have seen over the years have been; odd MAF sensor problems, partially blocked injector, head problems, bad ECU, and some other sort of obscure stuff. I wouldn't want to see you spend thousands just to have something fail again.

Quote:
Originally Posted by Rakaz View Post
Here is a dumb answer to your question. No it wasn't. I had the meth turned down so it only came on at higher boost though. Do you think that not having it tuned could cause the ringland to fail?

Last edited by P3Auto; 01-17-2013 at 06:04 PM.
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Old 01-17-2013, 06:11 PM   #1987
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Now I just need to convince my wife that the meth kit didn't kill the engine
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Old 01-17-2013, 06:25 PM   #1988
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Simple solution...First tell her most engines have ring lands. Then tell her to go to google and search 'ringland failure' then note that without even being specific that a MASSIVE amount of search results refer to Subarus.

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Now I just need to convince my wife that the meth kit didn't kill the engine
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Old 01-17-2013, 06:27 PM   #1989
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What I know for sure is that the oil level dropped much faster than usual (1 - 1.5 quarts / 4000) and I did not catch it until the oil warning light came on. About 2 weeks later my turbo started making noise. I had subaru check to verify that the noise was the turbo which they did. I then performed a compression check and my no 4 cylinder is at 45 - 50 cold. The others are between 110 and 120 cold.
It seems to me that the ringland broke which allowed the oil to pass by the piston causing the loss of oil. The loss of oil caused the turbo to be starved thereby killing the turbo.
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Old 01-17-2013, 06:47 PM   #1990
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Bummer, textbook reason why it died. Sorry to hear. I always stress to check your oil every time you put gas in your car!!! Many a engine lost due to not checking.
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Old 01-17-2013, 06:56 PM   #1991
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FWIW -- I have heard from lots of sources that Subaru states anything better then 1qt of oil per 1000 miles is within spec for a turbo engine model.

We rebuild 2-3 motors a month and a decent amount of the builds have shown signs of oil loss at one point or another. It should be noted that ringland failure can 100% be from lack of oil. Oil plays a major roll in cooling for that piston and that piston that failed gets hotter then the others.

These motors really only hold about 4.5 qts. I know for a fact that if you get even 1-1.5 qts down and make a hard turn or a very hard stop you will for a split second loose oil pressure. I have seen it on my own gauges. The oil "warning" light doesn't come on until your basically experiencing no oil pressure at all. Probably one reason why bearing failure is on the top 3 killers list for these motors as well.

Talk about grinding gears...
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Old 01-17-2013, 07:13 PM   #1992
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Originally Posted by JordyB View Post
Bummer, textbook reason why it died. Sorry to hear. I always stress to check your oil every time you put gas in your car!!! Many a engine lost due to not checking.
Yep. Laziness costs.
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Old 01-17-2013, 08:47 PM   #1993
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I think this issue goes much deeper. I recommend that everyone in AKIC read this thread

http://forums.nasioc.com/forums/show...+land+failures

and begin re-thinking some of the multitudes of problems that have been occurring with these motors over the past several years. The problems are more complex than is initially perceived.

ANYONE thinking they can just throw on a bolt on part or even install a meth kit without causing an issue elsewhere, had better think again or get ready for some expensive lessons. These motors are built to run highway speeds. When you begin tweaking settings without thoughtfulness and consideration, raising horsepower by over a 1/3 on the original design and putting a bigger strain on components….something somewhere is going to let go. Guaranteed.

In the above thread, they talk about big diesels and Porsches having 10-12 quarts of oil. Think about the heat soak potential of that amount of oil. Most of our vehicles only have 5 quarts. When you begin stressing the small amount of what oil we do have in the car, and using the vehicle in heavy duty situations (which we all pretty much do living here in Alaska), over clocking turbos, running higher boost, etc. you are setting your motor up for failure. Add in those folks reusing old components, not bothering to clean out or replace oil coolers, oil pans, etc. It is a recipe for yet another failure.

Rakaz, going with a meth kit was a good move but not getting it tuned was a bad move, in my opinion. Don't know what happened, doesn't really matter now, but at some point you detonated and that non-timed explosion broke your piston. That set off your oil consumption problem thus killing the turbo too.

Look how much money you saved by not getting the car tuned properly.

After going through a recent build up myself firsthand, I can say that these endeavors are costly on many fronts, not only financially but energy-wise, stress-wise and they can be soul draining. Things must be planned down to the gnat's ass and even then, be assured you will run into multiple issues during the course of the build. Many times these are completely unforeseen. It is like walking into pitch-black room with no references, working through a maze without a map and trying to find a needle in a haystack. I don't want to ever go through a similar situation again, especially with a daily driver.

My first car lasted 132K miles before succumbing rod knock. We have yet to tear that motor down yet but will be doing so soon. That car was built slowly over a decade, methodically, with careful consideration and attention given to each component. My own maintenance schedule for the car was half of what the factory limits called for and yet it still failed. My oil pressure was always fine too. Never had a warning light come on. Time, mileage and wear. Even when things are done "right"….results=dead motor.

Quote:
Originally Posted by Rakaz View Post
Yep. Laziness costs.
It is not possible for anyone to fathom just how much this is going to cost you in the end, in intangibles. It's gonna hurt in more ways than you can yet imagine.

Last edited by Nomadgene; 01-18-2013 at 12:34 AM.
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Old 01-17-2013, 09:04 PM   #1994
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Craigslist changed their formatting. I don't like it.
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Old 01-17-2013, 09:09 PM   #1995
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^^^ I don't know, I kind of like it myself.
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Old 01-17-2013, 09:24 PM   #1996
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I don't like that it's centered now, and the photos seem to act weird. Enlarging on mouse-over. Strange. I liked it simple, fast and effective.
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Old 01-17-2013, 09:26 PM   #1997
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On the flip side of that, the images are larger yet again.
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Old 01-25-2013, 12:40 AM   #1998
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Almost being rearended on the highway and dumb driver on icy highways!
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Old 01-25-2013, 02:43 PM   #1999
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WGMG? Dirty car.
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Old 01-25-2013, 02:56 PM   #2000
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People not doing the speed limit or anywhere near it on a day like today. Chevy blazer with summer tires and I haven't been sliding at all while in 2wd.
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