Test can be found here.

http://www.modernperformance.com/pro...c104c4646eb112

Granatelli FTW?

Magnecor FTL?

Discuss!

 

i guess 2nd place is always good

 

I'm more then pleased with my "2nd Place" MSD wires.

 

i think i dats tight how they tested it for us. im going to go wit da msd

 

Well your ignition system was actually designed to run on 4000-6000 Ohms per foot of resistance wire and achieve complete combustion. This combined with the approximately 8000 Ohm Champion spark plugs achieve the balance that was designed to achieve a spark of proper intensity and duration in the combustion chamber.

Dr. Jacobs of Jacob Electronics used to use Champion booster gap plugs to up the intensity of the arc over voltage in the system to help make sure a complete combustion. Basically adding a second gap. In a modern Neon style DIS ignition you have that built in with the second plug used in series (ala the waste spark).

This is why every time you dyno the car it makes NO DIFFERENCE, milage is the same. Sometimes idle is slightly better but not a big difference.

Which wire is best, all would be fine. Jacobs made wire about 150 Ohms/foot which is plenty good enough and recommended the 8000 Ohm Champion sparkplug. So everything in balance. In the 80's and before the car seemed to run better on Bosch Platinum plugs because hen you changed out you old plugs, well, first they were new, second, the platinum changed the required arc over voltage lower making it idle better better as you had fewer misfires.

What does all this mean, you have a good system in stock form. The after-market wires are better built and last longer overall and that is what makes them better. With a change of plug brand to say NGK as well you might affect a smoother idle if the PCM is not providing a enough Dwell time in firing the coil. At the top end, limited effect will ever be evident.

For what you can get MSD for they are a BARGAIN for a LONG lasting quality plug wire. The others they still offer are good as well.

 

I've never heard of Granatelli.
I like the test.

 

"A little knowledge is a dangerous thing"

and

"I know enough to be dangerous"

are old sayings
and that guy who thinks ohmic resistance
is the way to test sparkplug wires is an example.

The coil, ignition wire, sparkplug gap and ground
are all part of an electical circuit
that has an 'impedance'
that is a cousin to, but not the same as resistance.

as you increase the impedance
you decrease the current ONLY AT SPARK BEGINING
and you
LENGTHEN
the time of the spark lasts...making the 'burn time' longer.

Almost all the automakers strive for ignition systems that make the burn time longer, which helps more than having a slightly higher current only at flashover.

You know those guys who created the MegaSquirt open source EFI project?

Well they also want you to understand ignition systems
and put this Java app online to let you play around
with the above ideas:

http://www.bgsoflex.com/igncoil.html

Bottom line?
Buy Magnecor ignition wires and use large spark gaps on your plugs, which probably ought to be tiny tips with irridium alloy so they will stay sharp

 

I like my msds also......

 

I will have to say that I have none of those wires that MP has displayed. I purchased Nology Hot Wires a while back and they have worked great for me.