spark plugs

Over the years I have often seen a slight improvement in performance when running a full size copper core plug over a fine wire electrode plug. The readings on the gas analyzer also said the burn was more complete. It never made much sense to me.

Maybe Nology has a good point here. http://www.nology.com/silverdetail.html

I think I will have to try a set. Jim

And when there shot , you can always use them in your teeth . :shock: ( Fillings ! )

Ok Jim your remarks and plug pointer noted though I'm a ad sucker for the surface discharge sparkers. If one were to index aim the hook gap direction what direction should the be?

Didn't see a listing for the Norton. Oh well.

Guido said:

Didn't see a listing for the Norton. Oh well.

Click to expand...

But there is a cross reference for the NGK plug that fits the Norton.

I spoke to Gary at Nology yesterday. I was impressed by his knowledge and willingness to help with a little design problem I had going on. Jim

hobot said:

Ok Jim your remarks and plug pointer noted though I'm a ad sucker for the surface discharge sparkers. If one were to index aim the hook gap direction what direction should the be?

Click to expand...

I don't know if there is a rule for that. Just where it works best is what I have heard. Jim

L4YS should be the plug for street

Cheers Richard

Jim,
I think Nology's Hot Wires with the capacitors in them are worth trying on ignition systems that have modular multi-terminal coils or low output coils. I have used them on my carbureted tube frame Buells and my fuel injected Buell XB and found them to give improved cold starting,idle stability and acceleration from low speeds. Gary was also very helpful with me on my XB. I was not able to use the Silver core plugs on my XB because the Silver core plugs are non-resistor plugs, and the RF interference interrupts the data links on the fuel injected Buells because they are not shielded.
Those who would try using the Silver core non-resistor plugs on Norton Commandos with electronic ignitions may have the same problem. If their ignition is fully contained in the timing cover and doesn't use a separate module they may not have a problem. Gary suggested using one of the many wire shielding products available to prevent RF interference from the non-resistor Silver core plugs on fuel injected or electronic ignition equipped engines.
I have researched wire shielding but haven't tried shielding the harness on my Buell. If anyone wants to try the Nology Silver core non-resistor plugs and finds that the RF interference is a problem take a look at the products offered at http://www.wirecare.com
The only constraint with the Nology Hot Wires is that the shortest wires Nology offers are 10 inches long due to the space required for the capacitors.

You know us red neck hayseed's got our reputation because the Union so suppressed the south we just had to make do with what ever and in this case its what resistance and capacitance in high tension lead to the spark gap teaches. Most EI ignitions are not that sensitive to RFI but the LED diodes can be to turn into syncopated rpm timing lights. Fo best spark you want low resistance coil to collapse its flux flield fast and hard as possible by having the least resistance and capacitance in the HT lead to the spark gap. Anything else is just expensive hype like the $10,000 a foot audio cable. Run copper or other metal leads to non R plug and put a Resistor cap on it *IF* the static bothers your radio or annoys others to aim at you. Where you want your resistance and capacitance is the in the spark gap itself. So if not shooting the charge in its own feet, open your gap up for even more flame front lightening bolt. At least don't connect the earth/ground lead of them $80.00 nonology shielded cables.

http://www.sacskyranch.com/iglead.htm
If we reduce distributive capacitance (i.e. reduce lead length)

* More reserve magneto energy is available to fire the plug.
* Less spark plug electrode erosion occurs.

A small, thin, weak-looking spark is characteristic of a capacitance spark. The fat, big blue spark of the Bendix S1200 magneto, is characteristic of an inductive spark.

The ignition lead has inductance. That is, the lead stores energy in a magnetic field and releases this energy when the spark gap ionizes. Lead capacitance and inductance offer a resistance to the flow of current called Ignition lead reactance.