05-01-2022, 03:53 AM | #89 |
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Thanks didn't know stock turbo could reach those levels of boost.
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2018 340i 8AT RWD - M Sport - Catless MPPSK - Stock Turbo - TU HPFP
Tunes: Self Tuned via MHD - Fuel: E18/92RON/87OCT https://datazap.me/u/ims/e20max?log=0&data=4-19-29 |
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05-01-2022, 03:54 AM | #90 |
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One of the top catastrophic events as a result of tuning. Not uncommon. Of course it happens even to untuned vehicles but that's very rare, for obvious reasons.
The worst way a turbo can fail.
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05-01-2022, 04:00 AM | #91 | |
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I actually just sold my stock intake manifold to someone who had his broken turbo bits end up in his manifold as well.
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05-01-2022, 04:17 AM | #92 | |
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I guess you mean the compressor blade, I am surprised BMW didn't put a kind of mesh between the charge pipe and throttle.
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05-01-2022, 04:22 AM | #93 |
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And introduce another potential single failure catastrophic event?
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05-01-2022, 04:26 AM | #94 |
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Why would a static metal mesh fail ? in that case the intercooler fins could also fail
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05-01-2022, 04:31 AM | #95 |
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Rust? Fatigue?
In Engineering it is all about MTBF (Mean time between failure) and probabilities. The probability of turbo failing and more importantly - failing in a way which is catastrophic for the engine, is extremely remote (under stock configuration, that is). Therefore no need for additional protection (which would need its own MTBF assessed and eventually mitigated, plus added manufacturing cost). All those numbers and assessments go down the toilet once we start modifying.
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05-01-2022, 05:08 AM | #96 | |
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I ran 21 psi on MPPSK tune.
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05-01-2022, 01:49 PM | #97 | |||
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05-01-2022, 02:13 PM | #98 |
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Yeah I've seen this in a couple of cars, stock turbo not able to hit high boost at peak RPM.
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Tunes: Self Tuned via MHD - Fuel: E18/92RON/87OCT https://datazap.me/u/ims/e20max?log=0&data=4-19-29 |
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05-03-2022, 05:07 PM | #99 |
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I have been getting unstable STFT and some timing corrections. Car on flexfuel with DAW, DS2 hpfp and PI controlled by Reflex. Can you guys take a look to see if log has anything obvious? Thanks! btw I'm still tuning.
https://datazap.me/u/alanle/david-re...og=0&data=3-24 |
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05-03-2022, 11:48 PM | #100 | |
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Timing corrections are ok but timing advance is low for a flexfuel tune.
Also boost is low you should be targeting at least 25 psi boost and 15 degrees timing. Quote:
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Tunes: Self Tuned via MHD - Fuel: E18/92RON/87OCT https://datazap.me/u/ims/e20max?log=0&data=4-19-29 Last edited by IMS-340C; 05-04-2022 at 02:49 AM.. |
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05-04-2022, 12:27 AM | #101 | |
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05-04-2022, 02:13 PM | #102 | |
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https://datazap.me/u/alanle/david-re...og=0&data=3-24 |
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05-04-2022, 08:49 PM | #103 |
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On the subject of "fuel", been looking at this from searching online, wanted to ask the experts here...
Not ideal to do WOT data logging with fuel (in my case, pump gas of Shell 93 octane blend with E10) in the tank that's been ~1 month since last top off, i.e. 1 month old fuel? Too stale to do a proper WOT data logging with? I read that the fuel has "stuffs" mixed in to avoid fuel from going stale? |
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05-05-2022, 02:39 AM | #104 | |
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Looks like bad throttle mapping, gas pedal 50% while throttle 98%
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05-05-2022, 04:28 PM | #105 | |
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I reset adaptation but problem still persists https://datazap.me/u/alanle/reflex-v...data=2-3-24-27 |
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05-06-2022, 02:34 AM | #106 | |
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You could try an OTS map and check if the problem disappear.
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05-06-2022, 02:51 AM | #107 | |
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Quote:
https://www.bootmod3.net/log?id=61ba...90c665b9ebcb45
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SOLD: 2016 340i xDrive 6-speed DAW v2.5 turbo E40 | Dorch S2 | VRSF DP | MST intake | AWE catback | 335is clutch | CSF heat exchanger | RK Autowerks intake manifold | Orange M Perf Brake Kit | KW Street Comfort coilovers | GTS taillights V2 Last edited by G.Newt; 05-06-2022 at 03:00 AM.. |
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05-06-2022, 03:00 AM | #109 | |
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Your WGDC also oscillates up and down, almost mimicking throttle closure. Something isn't right. Your smoke test came up with nothing? Hmmm
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SOLD: 2016 340i xDrive 6-speed DAW v2.5 turbo E40 | Dorch S2 | VRSF DP | MST intake | AWE catback | 335is clutch | CSF heat exchanger | RK Autowerks intake manifold | Orange M Perf Brake Kit | KW Street Comfort coilovers | GTS taillights V2 |
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05-06-2022, 03:15 AM | #110 | |
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Last edited by E90ROXS; 05-06-2022 at 03:21 AM.. |
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