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BMW 3-Series (E90 E92) Forum
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01-23-2023, 09:10 PM | #23 | |
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I find it hard to believe that turbos with larger bushings and thrust plates would fail sooner than the stock turbos as the same boost levels. How are you so certain than the stock turbos lasted longer than RB or Pure turbos would have? Where's your data? |
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01-23-2023, 10:07 PM | #24 | |
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01-23-2023, 10:14 PM | #25 | |
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If I wasn't going just stage2+ I would consider aftermarket turbos for sure but then you wrote what you wrote without elaborating more on it so I'm pretty lost tbh. |
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01-23-2023, 10:30 PM | #26 | |
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01-24-2023, 12:22 AM | #27 | |
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20psi on even the OEM Billets should last as long or outlast OEM stock ones. Failure rates are a good indication but how hard and how often it's driven and wether it's tracked all have an effect on longevity. Freur is just making assumption, with no evidence to back up his claims. Last edited by Saif2018; 01-24-2023 at 12:55 AM.. |
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01-24-2023, 05:59 AM | #28 | |
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Yes....I agree with you, stock turbos are going to be more reliable than cheap china eBay turbos.....but I would be willing to bet that a set of RB TWO's at 20psi are going to be much more reliable than a set of stock turbos as 20psi. How could they not? Larger bushings, thrust plates, and bigger oil channels machined in the thrust plates. There is no way they are going to be less reliable. Are you saying OEM turbos that are designed around 8-10psi operating pressure are going to out last a set of turbos that have been beefed up to handle much more than that? That doesn't make sense at all. |
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01-24-2023, 06:01 AM | #29 | |
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01-24-2023, 08:08 AM | #30 |
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Yeah, that's typically what he does.
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01-24-2023, 04:50 PM | #31 |
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I don't see how anyone could really produce comparison data on these turbos. Just far too many factors to look at.
How would you start? Failures per hours driven, factors for Max compressor RPM and duration. Heat cycles... or duration of driving cycles. Good luck developing that matrix. Then comes the whole "quality" question. Where " quality " means meeting the expectation of the customer. OEM has a completely different expectation than a stage two set up. |
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01-24-2023, 07:41 PM | #32 | |
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Most people that have some common sense can assume that something like RB or Pure with upgraded components should last longer than stock at a given boost level, but in the end...there are just too many variables to really prove anything with hard data. When it's all said and done....it's all personal choice. Buy what you want....and have fun with it ....as long as they last |
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01-24-2023, 09:28 PM | #33 | |
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01-25-2023, 12:16 PM | #35 |
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01-25-2023, 12:36 PM | #36 |
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RBs are probably the only aftermarket turbo I'd consider because of their reliability. If you ran the RBs at the same power the stockers were being run at I'd put money on the RBs lasting longer.
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01-25-2023, 01:04 PM | #37 | |
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I really don't see how you can argue against physics....
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01-25-2023, 04:19 PM | #38 | |
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RBs really are the exception to the rule. |
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01-25-2023, 04:45 PM | #39 |
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Yep...I completely agree. You can't really have a blanket statement like "stock turbos are more reliable than aftermarket turbos"..... Unless you specifically call out which aftermarket turbos you're talking about. Yes, most are cheap china junk. RB's are top notch, I've heard Pures are very high quality also, but I have no first hand experience. All the others (DAW, VIV, CTS, etc....) Are just rebranded china junk.
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