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Thread: Back Fire - when should it?

  1. 04-21-2007, 03:30 AM #1
    72911E
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    Back Fire - when should it?

    When should your early 911 back fire - if at all?

    I was in heavy traffic today for about half an hour.......once I got a bit of clear space and hit the flyover and started to acceralte from 2nd to 3rd gear, got quite a loud back fire with a bit of black somke.....is that ok?

    thanks
    Derek
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  2. 04-21-2007, 08:31 AM #2
    nickd
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    and then what happened ?

    are you running a sport exhaust ?

    mfi or carbs ?

    I suspect the car understood you wanted to get up and go, so the engine decided it needed to clear it's throat ......
    Nick D - Run Flat

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  3. 04-21-2007, 01:50 PM #3
    dhopkins
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    Darn..we put the engine in the wrong place!
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    The only time my 911 backfires is when the carbs are not adjusted properly.
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  4. 04-21-2007, 05:58 PM #4
    72911E
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    standard exhaust. Has MFI.

    I too think it wanted to just clear itself ........car was find after this.
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