Well its out!

Discussion in 'Mazdaspeed 3 Build Diaries' started by Mtnbker3531, Jan 16, 2022.

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  1. Mtnbker3531

    Mtnbker3531 Platinum Member

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    Thanks for the warning on that! I've been researching it quite a bit and seen some bubbling action over time. I have zero intention of ever driving the car in wet weather again but things happen.

    I know I need to do something about the CS exhaust manifold to mitigate heat I'm just undecided on what direction to go.

    From my loose understanding any sort of heat wrap/coating will shorten the service life of the component. How much impact will it have though?

    The positive side of this is that the CS is cast so I would imagine it would be more tolerant than a welded tubular design.
     
    Mtnbker3531, via a mobile device, Mar 27, 2024
    #61
  2. phate

    phate Motorhead Silver Member

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    I have a cheap ebay tubular mani swain tech coated and it's lasted several seasons. I think you'll be fine. I'm planning to add some stainless steel heat shields this year in addition to the coating.
     
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  3. Easter Bunny

    Easter Bunny Professional Engineer Motorhead Platinum Member

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    that heat wrap causing deterioration is a wives tale related to poorly made manifolds if the hood is closed what moisture could it be trapping
     
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  4. Mtnbker3531

    Mtnbker3531 Platinum Member

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    I almost tagged you EB, I was hoping you would chime in.

    I never understood that whole moisture thing either. Not to mention I would imagine with the temps any moisture would dissapate.
     
    Mtnbker3531, via a mobile device, Mar 27, 2024
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  5. Mtnbker3531

    Mtnbker3531 Platinum Member

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    T
    That's great to hear! I seriously doubt my car will ever see the temps you probably see on the track.
     
    Mtnbker3531, via a mobile device, Mar 27, 2024
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  6. Mauro_Penguin

    Mauro_Penguin Punk in Drublic. #BlackLivesMatter Motorhead Platinum Member

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    It's true the rust on manifolds has to do with quality of the manifold, it also depends on where you live and the weather.

    I've seen cheap exhaust rot/rust here in FL, not to mention the weird rust you get on cars the closer you live to the coast. It's not like northern salt rust from winters.

    Going on 6 years now with the full race manifold coated and wrapped. 5 years with my cpe downpipe wrapped. No issues so far.
     
    Mauro_Penguin, via a mobile device, Mar 27, 2024
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  7. Easter Bunny

    Easter Bunny Professional Engineer Motorhead Platinum Member

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    Are you rebuilding the whole rear suspension?
     
    Easter Bunny, via a mobile device, Apr 1, 2024
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  8. Mtnbker3531

    Mtnbker3531 Platinum Member

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    Pretty much, I have all the Powerflex bushings and I plan to clean and paint all the arms as well as the sub frame. I also have a set Swift Springs with B8s and some Massive Speed camber arms.

    We shall see if I regret going to urethane on the street.

    Depending on how things look above the fuel tank I may drop that if I see any issues.
     
    Mtnbker3531, via a mobile device, Apr 1, 2024
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