plug wires?

well I'm going to replaced my old, worn out, burned out, sparking like crazy POS stock coils on my XJ550 with a set of dyna coils (DC1-1 from what I gather is the correct ones), I was wondering if I should go with the Dyna coil wires DW-300 which are red coated wires with a copper core, or the DW-600 which are Black coated suppression wires with a graphite core, would there be any difference in the two, any input would be helpful, Thanks...

 

I have seen it done both ways, but the preferred wire is copper core. (There are other colors available.)

Z

 

do you know why copper is prefered over graphite or other material for that matter?

 

Two reasons:
1. To keep resistance at or near the appropriate level. Normally the resistance in the secondary is achieved with resistor caps at 5K Ohms. Sometimes the resistance is increased by using resistor plugs, as in my case using Iridium plugs which only are available resisted. Adding resistance in the wires too is unnecessary, but number two is the kicker.
2. Typically, the ends of the plug wires have screw-in terminals, especially the plug caps. The screws don't hold very well in graphite.

Then again, graphite core wires are used by us, and those that do have done it successfully. Keep in mind that resistance is added only to reduce radio noise in our ignition systems, but doing so inherently reduces spark. Those of us who are considering which wires to use are usually doing so because we've replaced our original coils with high output coils which makes up for the additional resistance. I've seen where some have used resistance wires, resistance caps, and resistance plugs with no obvious ill effects. IMHO it's just better to stick with copper core wire.

Z

 

One thing I did notice when I changed my ignition system over to standard 7mm automotive graphite core wires was that the original cooper core wires were extremely corroded on the ends. When I removed the cooper core wires, the end wires were so corroded that most of the core wires were either broken or actually nothing much more the corrosion powder. If you use cooper core, make sure you take the corrosion into account and use electrostatic grease or some other material to thwart the procces.

 

thanks for the info, makes my decision alot easier!

 

I would suggest some OEM type coils Maybe From: Mikesxs.com The dynas while good are seriously pricey.. Many have found that replacement of their tired 20 year old coils with New oem type replacements gave miraculous result.. Short answer is You will get more than you need with the cheap oem types.

 

the dynacoils plus the wires are still cheaper than the OEM which I can only get from the dealer here!, (living in newfoundland sometimes shipping is a pain when ordering online). I got my dynacoils and wires for $180cnd where as the OEM's would have cost me $240.

 

BTW I ordered them today, so I the dealer should have them by friday...come on friday, lol