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MBC broken = example?

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    #1

    MBC broken = example?

    say i had a MBC (manual boost controller) and it was not working properly.. or maybe is it possible for it to be inconsestant?
    if no one knows. my car for serveral years now has been boosting good on and off more times though it boost bad like 2~3 pounds.. but i was thinking could it be the boost controller? it is a MBC spring one.
    turbo h22 tein ridin Accord guy... from AccordT****.com
    smarter than local dyno tuners..
    my car in 2004~05<br>
    i love this red font

    my car blew up! in May 07'
    Tags: None
    #2
    Yes, MBC's are known for boost spikes. Best way to test it is to remove it to rule out WG spring issues.

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      #3
      I've pretty much decided the MBC I was using is the cause of mine engine destruction. Ran just peachy with just the WG, put a cheap'ish mbc on it, take it to the track, spike to 18psi a couple of times....engine go boom
      1993 Prelude S
      F22A1
      custom'ish turbo setup
      180 whp/217 ft-lbs super hot, super humid, super rich, boost falling off at 8psi
      18psi boost spike = BOOM!!!!!
      currently being rebuilt

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        #4
        A 3 bar map sensor is a smart investment to make to protect your engine. Even if you plan on staying within the stock limits, I strongly suggest it.

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