BMW ignition booster - anyone knows where to get one?

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  1. BMW ignition booster - anyone knows where to get one? 
    #1
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    I've seen a lot of gadgets for various brands, but nothing that would suit BMW i6 engines. Anyone knows where to get one without losing an arm and a leg? Ta!
    There are only two products required to make the universe work properly: Duct tape and WD40. 


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    It shouldn't be needed, same with the hugely overpriced "plasma" coils they sell in the US.
    The ECU already has a dwell map inside which alters the spark charging time and therefore power depending on battery voltage to keep it consistent.
     
     

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    I can't afford brand new genuine coils, and I have a feeling my aftermarket coils are not as good as the genuine counterparts. And I'm trying to compensate for this with an ignition booster.

    Only saying this because, after replacing all coils with brand new aftermarket ones, the car felt very responsive and hard on acceleration (especially above 4k), but it only lasted for a week or so. Then it went back to the way it used to run before I replaced the coils. Sluggish, non responsive and disappointing.

    So I'm now considering this booster thing, hoping to overcome whatever the problem is (weak coils, something wrong with the ECU or wiring etc).


    This is the sort of thing I'm looking for:

    There are only two products required to make the universe work properly: Duct tape and WD40. 


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    And a bit more info on this, in case anyone is interested in this topic.
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    A good rule of thumb is "If it is American, ignore it."
     
     

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    Got one for Malaysian, too?
    There are only two products required to make the universe work properly: Duct tape and WD40. 


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If it doesn’t move (and it should): WD40.

    Everything else is just stuff.
     
     

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    US quality, Asian prices!

    it looks like it is for single coil engines, BMW have been doing 6 separate coils for quite some time now which are already very powerful compared to single coil types.

    As with most things, it is the general perception that sells it. You either get a misfire or your don't, and in the same way, you wouldn't need a bigger match to set fire to a bigger object, it'll either burn or not burn.

    Making the spark more powerful might be handy on high boost, high compression engines where misfires may occur, but otherwise they only need to be as strong as to make a spark to ignite the air and fuel.


    Spark plugs are similar, unless you have some real old dirty ones, changing them won't give you any more power by having a larger spark.
     
     

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    sounds like an electric turbo zet thing to me lol

    could try adding an extra earth wire to engine
     
     

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    Quote Originally Posted by TheEnd View Post
    It shouldn't be needed, same with the hugely overpriced "plasma" coils they sell in the US.
    The ECU already has a dwell map inside which alters the spark charging time and therefore power depending on battery voltage to keep it consistent.
    so im assuming the dwell map can compensate for a less efficient coil.
    which would mean that the coils are not the problem?
    i would have thought that generally they either spark or they dont.
    and you would notice an actual missfire.
     
     

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    They compensate for varying battery voltages, they can't detect bad coils, but it does mean the spark "requested" will always be constant if the battery is at 11.5v or full on 14v when running.
    It will also adjust for the engine RPM as there is only a certain amount of time to charge a coil before it is needed to be used again.

    With the table, it will figure out how long it has got and what power is available, and produce something of the same energy.

    Old distributor systems couldn't do any changes like that, and one coil would constantly have to be running to spark every cylinder.
    There would be longer leads for the spark to travel down, the coil would start getting pretty hot and it would have a pretty rough time, but BMWs have been using coil-on-plug for quite a while now, each cylinder has its very own coil, the lead is only about 2-3 inches between the bottom of the coil and the top of the plug so they are a very strong system.

    Where it can start to go wrong is when the coils start to get old and break up inside, and they can start short circuiting. A coil of 20 loops of wire might end up shorting between a couple and giving less of a spark.
     
     

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