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here's more info for the inclined, from Magnecor (archive)

[ Follow Ups ] [ 5-series (E34) Message Board ] [ Msg. Board FAQ ]

Posted by Brian M. on July 31, 2001 at 16:21:30:

In Reply to: Re: Ignition wire debate. I'm in turmoil... posted by Brian M. on July 31, 2001 at 11:47:26:

if you need a summary, basically it says that you shouldn't buy their product unless you've got a modified ignition system. they also cover spark plugs, pointing out that having an easier gap to jump reduces power of the spark.


the power of a spark is directly related to the power expended to jump the gap in the sparkplug, not the resistance of the wires.

the high performance wires will provide you nothing without the addition of a high performance ignition system such as that found on race cars. they also have the potential to screw up the feedback mechanisms of the stock ignition system.

imho, a waste. the OE supplier is BERU, who supplies Porsche. the quality of the OE wires is extremely high.


Does anyone know if the resistance matched wires perform better on our cars or should I go with the low resistance 8mm silicone wires with varying resistances depending on length of wire run to spark plug? Thanks in advance guys

'93 535M
sharked, blsd, h&r'd, struted but not yet swayed






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