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My poor outlet install caught up with me

Discussion in 'N54' started by NoQuarter, Jul 9, 2018.

  1. NoQuarter

    NoQuarter Lieutenant

    Messages:
    605
    Location:
    Indiana
    Ride:
    Z4 35is, 535xi, X5 35i
    This is on my Z4
    I knew last season after a track day I burned my outlet pipe but it held boost so I let it ride.

    This season it finally let go while working on the new flex fuel tune with BQ. The logs had some crazy wgdc and BQ suggested I look for a leak. Ha... I knew right where I was going to look...

    20180707_201245.jpg

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  2. Cheezy

    Cheezy Lieutenant

    Messages:
    538
    Location:
    Toledo Ohio
    I wrapped mine completely in heat tape before I installed it, hopefully it holds up. I did get under and notice a heat shield kind of poking it and got worried
     
  3. Rob09msport

    Rob09msport Sergeant

    Messages:
    311
    Ride:
    09 335i msport le mans 18 x5
    Oh boy yours is cut way shorter then mine I've been wanting to try slide on turbo further cause my inlet sits on it and when real hot they start to deform eachother but if yours did that im screwed between that and 034 motor mount lol
     
  4. fredcase

    fredcase Corporal

    Messages:
    101
    Ride:
    07 e90 335xi
    MMP outlets are trash.
     
  5. hassan_hamdan

    hassan_hamdan Specialist

    Messages:
    73
    Ride:
    135i M package
    sorry to hear, after personally doing mmp inlets and outlets, I think the best option would be to go with metal upgraded outlets next, its just even wrapping, metal shields, and wtv custom work you do next, its just a band-aid in my opinion. Curious to see what you will do next !
     
  6. NoQuarter

    NoQuarter Lieutenant

    Messages:
    605
    Location:
    Indiana
    Ride:
    Z4 35is, 535xi, X5 35i
    I have a PSP outlet on order.
     
  7. Torgus

    Torgus Sergeant

    Messages:
    330
    Location:
    Boston
    my mmps melted and I always had issues with them.

    I recommend the metal PSP outlet, it the superior outlet by far given what is on the market.
     
  8. fmorelli

    fmorelli Lieutenant

    Messages:
    973
    Ride:
    E89 Z4 35i, F10 535d
    Sorry to see this. A buddy just fried his MMP outlet on his Z4 over the weekend. Mine look fine but I suspect it's a matter of time.

    Filippo
     
  9. N54QC

    N54QC Corporal

    Messages:
    120
    Ride:
    07 E90 335i
    I didn't care for the close proximity of the MMP outlets and ended up taking a sheet of felpro exhaust gasket board that I had laying around and screwed it to the boost solenoid pan as a barrier. I assume if it burns through that, the outlets don't stand a chance anyways.
     
    Last edited: Jul 9, 2018
  10. Rob09msport

    Rob09msport Sergeant

    Messages:
    311
    Ride:
    09 335i msport le mans 18 x5
    I have vtt silicone outlets thinking of going to their aluminum . I like the idea of being able to do reflective high heat paint on outlets. I really wish someone would make double wall insulated outlets but i guess before fmic not as big of a deal. i just hate that my inlet touches my outlet but i guess that's a personal prob lol curious if others got them to not touch?
     
  11. veer90

    veer90 Sergeant

    Messages:
    395
    Location:
    Rye, NY
    Ride:
    e90 335i 6MT
    This isn't an MMP issue, no silicone outlet on the market can handle physically touching the exhaust manifold even with heat wrapping.
     
  12. Rob@RBTurbo

    [email protected] Sergeant Vendor

    Messages:
    265
    It is worth pointing out we have been selling our silicone outlets now for nearly 2 years and to the tune of about 150 sets around the world. In this amount of time we have had 2 issues, both of which did not have our recommended heat shields installed. We also recently had another tail section presumably fail as well, but no details or pictures were provided so it could've been a simple puncture.

    Not saying that aluminum isn't superior (it is!), or that silicone will never fail (it will eventually!); just more so that when a silicone product has a better design, an arguably better composition with certain better rigidity, and actually installs without an all-out battle... then these types of failures will become less likely to happen (or over a much longer duration). Buying products because they are cheaper (ie. $50 less) doesn't usually get you what is the most ideal.

    Rob
     
    Last edited: Jul 10, 2018
  13. Rob@RBTurbo

    [email protected] Sergeant Vendor

    Messages:
    265
    These outlets were made to 2" ID specs which puts them around 2.4" OD, this size material doesn't have the greatest tight bend ability so you end up with even closer proximity to the manifold and other hot parts. They also follow the identical OEM route as they directly match the OEM piping in design.

    This was all done for a few reasons:
    1) To tout about big "FLOW", which really matters nothing in these outlet scenarios where even 1.5"+ is more than enough for the power ranges we are dealing with.
    2) They are designed ultimately to be compatible with the bigger MMP TD04 compressor housings which have a 2" outlet connection. So basically the outlet is "universal" for stock turbo housings (with a very large transitional adapter) or the larger TD04 compressor housings.
    3) OEM routing meant ease of design and no effort in time, this simple copy meant less efforts applied to move the (much larger OD and fragile) silicone as far away as possible from all the hot parts.

    There simply is not the real estate to work with in these areas, and it is not worth compromising longevity for flow (from an overly large outlet).

    Rob
     
    Last edited: Jul 10, 2018
  14. pdxbimmertech

    pdxbimmertech New Member

    Messages:
    6
    Ride:
    2008 E92 335i 6 spd
    Almost the same thing happened to my MMP silicone outlet as well and had it heavily insulated. Not enough to keep it from burning a small hole in it though. Only found it by smoke testing the engine. Will never put another silicone outlet on an N54. Not the environment for silicone if you are expecting it to last and be trouble free.
     
  15. Rcboosted2007

    Rcboosted2007 Sergeant

    Messages:
    472
    Location:
    Fresno ca
    Ride:
    07 335i
    6477BAF0-9BA6-4C1C-8759-08B76E679C7D.jpeg 9C130225-1CC1-4021-BA73-F8E526F814B3.jpeg ECAA090A-C760-4BB8-B664-E15147C3F543.jpeg MMP must be using some cheap material. Mine simply split and blew out
     
  16. LessIsMore

    LessIsMore Private

    Messages:
    35
    Ride:
    09 535i
  17. noorj

    noorj Private

    Messages:
    27
    Ride:
    '07 e90 335i
    omg the cheapest outlet on the market is made of cheap material!?!?! someone should call BBB
     
  18. Rcboosted2007

    Rcboosted2007 Sergeant

    Messages:
    472
    Location:
    Fresno ca
    Ride:
    07 335i
    Bought psp for $240 today.
     
  19. fmorelli

    fmorelli Lieutenant

    Messages:
    973
    Ride:
    E89 Z4 35i, F10 535d
    Good deal on a nice piece of kit. I'm holding out until we do the turbos. Maybe this winter if we can get our mockups and all that going.

    Filippo
     
  20. matreyia

    matreyia Sergeant

    Messages:
    407
    Ride:
    335i e93
    No amount of heat tape or reinforcement will keep the hose from burning. I have tried two times and all have burnt even after more trimming and readjusting. I now have the PSP aluminum kit and should have done it long ago and saved money and time...because after spending the time and money to repeatedly try to make it work with the silicon...you have spend more than if you would have just bought the PSP or VTT kit.

    VT
     
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