red hot manifolds?????

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  • jay dot dog
    Noobie
    • Jan 2007
    • 32

    #1

    red hot manifolds?????

    my buddy has a 1985 e we just got it running,, put a new wireing harness on it,, it idels good but it has no power when driving it and the Exhaust manifolds are red hot,,, can a cloged cat cause the manifolds to glow red....??????
  • E30 Reaktionär
    Site Manager
    • Aug 2006
    • 14451

    #2
    The cat could be clogged. Does it have 1 or 2 cats? Or it could be running really lean. The cats are really easy to gut.

    1992 BMW 325iC
    1978 Chevrolet Monte Carlo
    1965 Chevrolet Corvair Monza 140hp

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    • Mike325
      No R3VLimiter
      • Mar 2006
      • 3685

      #3
      Ya, sounds like the cats are plugged. The no power thing pretty much tells you their is a restriction. The easiest and quickest way to tell this is to feel the air coming out of the tail pipe, idle and with some throttle. If the air flow does not change really, then that is a clog. You could also take the exhauset off from the headers back to see if there is a difference.
      Originally posted by cabriodster87
      "Honey? What color is this wire? Is it the same as that one? Are you sure? I don't believe it. OK, it works. Thank you sweetie."
      Originally posted by Kershaw
      i've got a boner and a desire to speed.

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      • euroshark
        No R3VLimiter
        • Apr 2006
        • 3491

        #4
        Haha, damn, thats a bad cat... Never experienced that one but it sounds cool!
        '88 528e /// '88 M5 /// '89 951 /// '98 E430 /// '02 M5

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        • jay dot dog
          Noobie
          • Jan 2007
          • 32

          #5
          thanks for the replys

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          • e30sportlove
            Member
            • Jan 2007
            • 69

            #6
            thank you guys it is my e30

            Comment

            • e30sportlove
              Member
              • Jan 2007
              • 69

              #7
              hot manifolds

              the manifolds are still hot and car has no power manifolds to glow red....??????

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