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07-24-2010, 11:33 PM | #45 |
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I consider myself very active on here and I have yet to see one thread about a single N55 HPFP failure. I've seen several threads with TrackRat claiming to have seen several threads but not "bookmarking" them (wouldn't a simple search find them?) but nothing of any substance.
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07-25-2010, 01:05 AM | #46 | |
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The O2 doesn't control boost pressure, FYI. Talk about being "blown" away. Last edited by RPM90; 07-25-2010 at 01:14 AM.. |
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07-27-2010, 08:38 PM | #49 | |
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Hypocrisy? |
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07-27-2010, 09:31 PM | #50 | |
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In the "older" days of turbo's many of us did use MBC's, and yes, tuning was harder. I love modern boost control, just like I like fuel injection, and electronic timing, etc... ABS, I'm still not completely there yet with that one. |
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07-27-2010, 10:48 PM | #51 | |
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07-28-2010, 01:27 AM | #52 |
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07-28-2010, 03:40 AM | #53 |
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I hope there will be no HPFP failures. If so, then this can explain why BMW went from N54 to N55. And if the M1 engine S55 is based on N55, then the M1 will maybe also not get HPFP, what is WIN for a "track" M car.
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07-28-2010, 08:01 AM | #54 |
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07-30-2010, 11:20 PM | #55 |
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I am sorry but why jeremyc74 is banned? I do not necessarily always agree with him, but I feel it is not right to do so. I hope I am seeing it wrong.
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07-30-2010, 11:49 PM | #56 |
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07-31-2010, 12:01 AM | #57 |
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I see his rank as "banned". and I never heard a N55 fail yet.
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07-31-2010, 10:56 AM | #59 | |
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By the way, no long cranks or hpfp failures. |
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07-31-2010, 11:24 AM | #60 |
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I have been through 4 hpfp replacements on my N54, the lease is due back now.
I have an N55 1 Series on order, so I have been digging in deep at my BMW Center. No hpfp's have been done for an N55 as of yet. Good news for sure, if this holds true! --MW edit: yeah, its a 6sp manual. DCT is cool for sure, but good clutchwork is cooler! |
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07-31-2010, 02:02 PM | #61 |
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I'd hate to play devils advocate here ( esp since i just ordered a 2011 135) but considering it has been confirmed the N55 uses the same hpfp, what if we aren't seeing failures because of the time of year. In other words, most people who have the N55 engine haven't had their car through the winter months, and its my understand that this is when the majority of the long cranks seem to occur. Just a thought. Anyone in colder climates have any experience with the N55 hpfp?
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07-31-2010, 03:51 PM | #62 |
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I doubt cold climates is the cause. I know of a 335i and 135i with N54s that have had HPFPs replaced in Hawaii. No cold climate here.
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07-31-2010, 07:16 PM | #63 | |
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07-31-2010, 09:30 PM | #65 |
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Just because the N55 uses the same unit, doesn't mean it's the unit itself that is at fault. It could be an issue with the N54 being too hard on the HPFP unit.
If BMW knew the part itself were faulty, why would they spend millions on developing a new engine only to use the same faulty part. Any reasonable person would understand it's not a good idea if that were the case. Note 35% of long cranks and 25% of replacements occurred within 5000 miles with another 35% long cranks and 25% more of replacements within 10,000 miles. Many people with N55s have surpassed that and still no reports. Also based on that survey, only 35% of survey takers actually had to replace their fuel pumps. 76% of those only replaced it once. I would also be willing to bet that there are more people who had no failure that never bothered to fill out the survey because they weren't affected.
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07-31-2010, 09:44 PM | #66 | |
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So my comments are not inappropriate and I won't refrain from pointing out your BS until there are documented failures on the N55. I won't be surprised if one eventually fails (hopefully not mine). Statistically it's bound to happen. But cut the crap until it actually does. Please don't slink away again. Let's hear your reply with some validation of an N55 failure. |
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