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BMW 3-Series (E90 E92) Forum
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High boost turbo failures
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04-26-2008, 06:31 PM | #89 |
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04-26-2008, 06:32 PM | #90 | |
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04-26-2008, 06:32 PM | #91 |
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sigh...this stuff scares me
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04-26-2008, 06:33 PM | #92 |
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[QUOTE=hotrod182;2560115]They had various studies, and I don't remember the figures, but I would venture to say if you bought every part seperately for the 335i, it would probably be $150,000-$200,000. I'm sure some experts in the field can chime in on those figures. [QUOTE]
That's it - I'm going to buy as many as I can afford and part them out. Or take them apart and sell them for NOS 15 years from now. By the way, one thing holds true with fast cars and horsepower no matter what: You play, you pay.
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04-26-2008, 06:39 PM | #93 |
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04-26-2008, 06:44 PM | #94 | |
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Not a BMW story but I think it is still relevant Back in 1996 I had a Eclipse GST running 20 Psi of boost on stock a turbo. At higher rpms it would run out of boost and everyone said it would be fine, at about 25k miles on my way home from work I got on it a little hard going up hill then suddenly lost power and when I looked in my rear view mirror all I saw was a big smoke screen behind me I turned off the motor and coasted to a stop. I lost 2 quarts of Mobil-1 in about 5-10 seconds. I took it to one of the turners in Canoga Park and he said that I over speeded the turbo and compressor contacted the housing and grenaded it. Well after about $7k I had a new custom 20G turbo and a new intercooler and new intake tubes and a new throttle body and was putting 281 Hp at the wheels. Oh and BTW the CATS and the O2 sensors were fine.
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04-26-2008, 06:47 PM | #95 |
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04-26-2008, 06:48 PM | #97 | |
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He also had blacked out window trim. That car from the first pic has the chrome trim. |
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04-26-2008, 06:49 PM | #98 | |
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04-26-2008, 06:50 PM | #99 | |
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04-26-2008, 07:15 PM | #100 | |
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Whats interesting is ive had multiple piggybacks (original vishnu XEDE - i was one of the first testers and had multiple CELs due to a bad resistor, procede (no CELs), JB2/HHR). Ive thrown CELs for different things multiple times (never non human error though). Had my DME checked multiple times too and nothing stored.
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04-26-2008, 07:18 PM | #101 | |
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04-26-2008, 07:35 PM | #102 | |
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As far as other stock turbos failing, the point of this information is to let you know that the turbos are a somewhat weak point. If a stock turbo fails, it is more than likely that one with 50% greater stress on it will fail even sooner. And if you take your car in for warranty work on the turbos, you can bet the area field service engineers will scrutinize you car for tampering. Secondly, when you take it in and "think" that your DME is clear, you never know what they might actually see, that is the point of showing part of that 11 page printout on a modded car. What is important to know here is what the consequences are. You are right, the V2 coupe owner had down pipes and removed them to take the car in for warranty coverage. However, in the process of taking the car in for "warranty" service. the oil dumped into those factory cats and ruined them too. Ouch. These are all cars with less than 15000 miles or so. So its just a matter of time, you will be hearing more about these failures, and BMWs response to them. Doom and gloom is not the purpose here. The purpose is to let everyone know that this can happen to anyone with a N54, that is correct. And that is the problem, if it happens to you, and you just happen to be modified, there is a LOT of $$$$ in jeopardy here. You might think its not likely to happen to you...but then again, not too many of us are prepared for these kind of failures and $ risk.
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04-26-2008, 07:39 PM | #103 | |
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As for the reason for the thread, you are correct, everyone should be aware of the possibilities. Although most will never have an issue, there will be those unfortunate ones which inevitably will and they need to be prepared. |
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04-26-2008, 07:54 PM | #104 | ||
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I see this whole thread turning into a Shiv back peddle cover up. Orb Last edited by Orb; 04-27-2008 at 12:19 AM.. |
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04-26-2008, 08:01 PM | #105 | |
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04-26-2008, 08:15 PM | #106 |
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It's okay. I expect no less from Orb.
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04-26-2008, 08:17 PM | #107 |
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All of the piggyback ECU tunes are capable of producing roughly the same psi, and nearly doubling the stock psi is potentially problematic regardless of who's ECU tune you're running. At least Shiv's following the forum. Yes Terry is banned but I don't see anyone other piggyback manufacturers offering comment.
This thread just brings the entire argument of "pay to play" back to the front of everyone's mind in a very sensationalistic way. Everybody knows that if you blow up your drivetrain in a catastropic way, the dealer's going to take a look at your car fairly closely. We all get lulled into a false sense of security because of all the feel-good dynos, "kill-reports", and track results and we love how the car performs and (some of us) forget that there's always the potential for problems of varying cost. The OP's subject car obviously had some sort of a serious problem. You have to believe that every once in a while, there's going to be a post like this. I'm not changing anything. I should have taken the over on 5 pages today... |
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04-26-2008, 08:29 PM | #108 |
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V3 is the one which really runs more boost at higher revs. Even V2 had some taper and was more conservative, when used correctly, than the JB2HR.
Do you really think it is fair to blame a single tune at this point? Heck, this same thing could occur with a Dinan flash. And with the additional modifications, Dinan could have said no to warranty coverage. Now, if a single tune starts showing repeatable failures, sure, the finger pointing is justified. As I am sure you are aware, the same thing could, and probably has, happened in a stock vehicle. We just wouldn't hear it on here as there would be no point to visiting. |
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04-26-2008, 08:35 PM | #109 |
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Unlikely if the purchaser stays within the scope of the warranty protection.
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04-26-2008, 08:40 PM | #110 |
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