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what's all this exhaust stuff?

Discussion in '80-Series Tech' started by e9999, Oct 13, 2003.

  1. e9999

    e9999 You want to do what...? Moderator

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    OK, folks, I'm still learning and I'm reading conflicting info (ain't the Web great?)

    1. Looking at a 100, I see 2 cats right after the engine (about under firewall), going into what looks like a big ole muffler midship, culminating in some sort of smallish round device at the end of the pipe (next to spare). I guess the cats are to reduce emissions using a platinum catalyst. I take it the big one is a "muffler" meaning a device to reduce sound in some ways. That correct? What's the rear gizmo for?

    2. Is the arrangement similar for the 80?

    thx
    Eric
     
  2. Beowulf

    Beowulf

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    1. It's a resonator.
    2. Yes.
    -B-
     
  3. e9999

    e9999 You want to do what...? Moderator

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    thanks BW,
    what's a resonator?
    Eric
     
  4. moralien

    moralien

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    [quote author=e9999 link=board=2;threadid=6252;start=msg50285#msg50285 date=1066065445]
    thanks BW,
    what's a resonator?
    Eric
    [/quote]

    A useless coffee can just waiting to get dinged up. ;)
     
  5. Beowulf

    Beowulf

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    Eric,
    If you are really interested then do a Google search on Heimholtz Resonators. It's a physics principle that uses specific sized cavities to deaden sound.

    It's definitely waiting to get smashed. See pics of mine that were posted a few months ago. The resonator barely survived but the tip of the pipe didn't.
    -B-