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Thread: Using Spark Plug colors to tune...?

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  1. #1
    I hate drifting Big Baller's Avatar
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    I've seen guys check plugs on cars on the dyno but they usually make a full pull and shut the car off they don't even let it cool down. Its a huge pain in the ass so why bother.
    Quote Originally Posted by Slowwrx
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  2. #2
    mm...Needs some Salt teh_mugen18's Avatar
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    Quote Originally Posted by Big Baller
    Its a huge pain in the ass so why bother.
    Lol not running so lean as to blow-up an engine is a good reason i think


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  3. #3
    I hate drifting Big Baller's Avatar
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    Quote Originally Posted by GM_TUNER
    Lol not running so lean as to blow-up an engine is a good reason i think
    Quit being a fucking cheap ass and buy a wideband, the only thing you can tell from plugs is how rich it was when you stop the pull, you have no idea how lean it is in different load zones....you sound like someone should be tuning your car....besides you.
    Quote Originally Posted by Slowwrx
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  4. #4
    Mountain man green91's Avatar
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    Quote Originally Posted by Big Baller
    Quit being a fucking cheap ass and buy a wideband, the only thing you can tell from plugs is how rich it was when you stop the pull, you have no idea how lean it is in different load zones....you sound like someone should be tuning your car....besides you.
    x2

    my thoughts exactly LOL.

  5. #5

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    Quote Originally Posted by Big Baller
    Quit being a fucking cheap ass and buy a wideband, the only thing you can tell from plugs is how rich it was when you stop the pull, you have no idea how lean it is in different load zones....you sound like someone should be tuning your car....besides you.
    A wide band doesn't tell you if you have too much timing. Optimal a/f ratio for different engines will not be the same either. A wide band is only good for driveability tuning, and is not an accurate way of tuning an engine with a power adder. Being "lean" is the last thing you need to worry about. Too much timing is what kills engines.

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