08-06-2011, 09:31 PM | #1 |
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Charge Pipe: Lousy Design
Just back from first day on track with my 1M.
Took it easy first session learning the car, but began pushing second session. Coming onto the bridge straight (at Summit Point's Shenandoah Circuit), "pop." Reduced power and check engine light. Immediately suspected the charge pipe, and -- after getting back into paddock -- I checked. Sure enough, charge pipe had come off throttle body. 10 minutes later, it is back together (with the circlip loudly snapping into place). Go back out next session, and in exact same place, "pop" (again). Same deal. Was able to repair it in 5 minutes this time. I'm aware of several other 1Ms that have had this problem and figure that this will be (or is) a common problem with 1Ms that are tracked. Perhaps the overboost feature and the stresses of track use puts a marginal design over the edge. Neil |
08-06-2011, 09:50 PM | #3 | |
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Also spent some time on the skidpad and car was a hoot. Other than charge pipe (about which BMW and its Motorsport division should be embarrassed), I'm very pleased. Neil |
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08-07-2011, 09:12 AM | #6 |
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08-07-2011, 09:14 AM | #7 |
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08-07-2011, 10:34 AM | #8 |
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Can someone post a pic of what this charge pipe looks like and where it comes off at. This would be great so i know what to fix once i get mine.
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08-07-2011, 11:02 AM | #9 |
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Look at part no. 5 (charge air induction tract):
http://www.realoem.com/bmw/showparts...85&hg=13&fg=20 It connects to the throttle body attached to the intake manifold. Neil |
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08-07-2011, 01:30 PM | #11 |
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Make sure that the clip is properly seated. The clip positively locks the hose in place and it would be very difficult to get the hose to slide past the metal clip.
What is the overboost psi on these cars? |
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08-07-2011, 02:21 PM | #13 | |
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08-07-2011, 03:14 PM | #14 | |
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08-07-2011, 03:26 PM | #15 |
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this is definately not a 1M problem because it happened to me multiple times until i went aftermarket and i havent had any problems since
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08-07-2011, 04:12 PM | #16 | |
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I'm convinced that a bit more camber would go a long way. Neil |
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08-07-2011, 04:25 PM | #17 |
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good to hear she runs well out of the box on Shenandoah...it is a pretty technical track without much runoff. any video? if not could you post some more impressions on specific areas and the track and front/back straightaway speeds I'd appreciate it.
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08-07-2011, 04:26 PM | #18 |
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there are many probléme in France too
a friend has his charge pipe who have explosed after two lap tour on a track!!! BMW must react!!!
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08-11-2011, 10:56 PM | #19 |
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This is the exact problem that I report maybe 3week ago ! The only way is to change it .
There is what happen Actualy I was looking to change it for the active autowerk.
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08-21-2011, 09:12 PM | #20 |
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I just got back from my first track outing with the 1m. My chargepipe actually broke, not just popped off the throttle body. In the market for a solution.
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08-22-2011, 09:21 PM | #21 | |
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Neil Last edited by MDORPHN; 08-23-2011 at 08:07 AM.. |
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08-22-2011, 09:52 PM | #22 |
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That's crazy! I don't know why that happens to you guys and not to us non-m guys. I'm sure that we have been running higher boost!?
Perhaps the way the overboost comes on? Too abruptly?
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