07-24-2020, 12:25 PM | #45 |
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OP, sorry to hear about your motor. I've always thought to myself if anything catastrophic happens to my motor, I'll move to an LS motor conversion. Total cost probably isn't far off of your new N55. And it's been done:
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07-24-2020, 12:34 PM | #46 | |
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07-24-2020, 02:21 PM | #47 | |
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07-24-2020, 03:19 PM | #48 | |
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Edit - I should also say that it is unlikely to be LSPI unless: 1) he was using aftermarket oil with super high levels of Calcium, but even then oil induced LSPI because of oil is not common, especially if it is LL01 approved. 2) Had super high IAT's from heat soaking and then goes WOT, pretty hard to see since he has a giant CSF intercooler. 3) Really bad gas - most probable especially if combined with 2, but the car should have adapted for the lower than normal octane unless he just flashed the car and resetted the adaptations and gave it full throttle right away before the car could adapt.
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07-24-2020, 03:24 PM | #49 | |
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07-24-2020, 10:23 PM | #51 | |
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I’m leaning towards having a machine shop rebuild the engine or at least tear it down to see if it can be repaired. |
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07-24-2020, 10:48 PM | #52 | |
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I wouldn't let just any machine shop rebuild it though.
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07-25-2020, 10:02 AM | #53 |
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N55 I believe is not meant for stage one until you upgrade the fuel pump. There are a few companies that have kits for this. You most likely had some detenation from loss of fuel pressure.
There was a thread in the F80 M3 forums that a bmw tech posted a picture of BMW ISTA software auto detecting a BM3 tune. Not sure why it got mysteriously deleted. It makes it look like this forum is shady to protect the vendor to make more $$$ for vendor advertising. Its a shame. Last edited by chmura; 07-25-2020 at 11:53 PM.. |
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07-25-2020, 11:11 AM | #54 | |
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I saw that ISTA blurb reposted in reddit. I can believe it. |
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07-25-2020, 09:53 PM | #55 | |
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07-25-2020, 09:56 PM | #56 |
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X4M has the same engine (different turbo, likely due to packaging)
https://www.car-part.com/cgi-bin/search.cgi they start at $6,500. |
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07-26-2020, 07:26 AM | #57 |
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07-26-2020, 02:00 PM | #58 |
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OP I am very sorry to hear about your situation. However, I must admit I am a bit taken back because BM3 does not have any issues and I been around them for a while. I am indifferent to them unlike many of the fanboys you may find on Bimmerpost, but there has to be more to this situation.
Your best bet is to try and rebuild the motor if it is not too far gone. |
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07-27-2020, 11:31 PM | #60 |
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07-28-2020, 12:03 PM | #61 |
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Well as mentioned above, word has it that BMW has started automatically scanning for any DME tamper via tunes/etc without actually needing the associate to explicitly do so, even if you've removed your tune/device before visiting. 🤷🏻*♂️
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07-28-2020, 01:43 PM | #62 |
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Great. Saves me time from switching to the factory tune lol
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07-28-2020, 03:48 PM | #63 |
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Picked up car from dealer today and had it towed to Eurocharged, Cincinnati. We will see what needs replaced and what they think happened. I’ll keep you posted. 4 weeks or so they state to have the engine pulled and stripped down. I’ll make a decision at that point to either try to find a used engine or build a beast of an engine.
How much horsepower can the stock clutch and manual transmission handle for 80k miles? Last edited by NBE23M2; 07-28-2020 at 03:53 PM.. Reason: Spelling |
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07-28-2020, 04:08 PM | #64 | |
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Remember torque is the real factor that breaks parts.
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08-02-2020, 02:26 PM | #65 |
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What's done is done and I think this is a bit of a fluke given the number of modded EWG N55s running around with more power.
My question is where is this oil leakage coming from on top of the motor? That's serious. Given the breakage of the first plug in cylinder 1, my guess is this motor was routinely having some significant detonation/LSPI or similar in the cylinder. The motor had a serious super knock event that was so dramatic that it hammered the piston rod bearing through the oil film thus spinning a rod bearing (hence the metal in the oil) and broke a ringland too (hence the low compression). Does the motor run as is? If so, is it knocking? Metal in the oil is no good because that means even if the block was good, you'd need to disassemble everything and have all oil passages cleaned to reduce the chance of lingering metal to cause a spun rod bearing. If you're sourcing a used N55, make damn sure it came out of an M2. The M2 has an upgraded oiling system compared to all other N55s.
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