I was sent a video of dyno pulls on a C7 comparing the stock plug wires to “zero ohm” Granatelli wires. Two pulls on each configuration netted some 11HP/14-17 ft lbs of torque gain.

Seems hard to believe but I have no evidence to say otherwise.

I’m not an electronics engineer but it is my understanding that a level of resistance is needed in the plug wires to keep from interfering with electronics in the car like the radio. How about the engine control module etc?

Chime in, I have no stake in this. Don

 

There are some nasty fights regarding this brand specifically.

Most tests will show that wires approaching 0 ohms will be within standard deviation range up until a certain amount of power demanded. At that point, it's more about the conductor gauge than the resistance.

I replaced my factory wires for aesthetics only, and went from 2000 ohms to 80 without any changes in performance.

 

Do yourself a favor and google Magnacore. Read through his website it goes in depth in that subject. Here is a portion, you are measuring ohm's with a DVM that operates on a 9 volt DC battery. It test the ohm reading by sending 1 volt of dc current through the wire. That current goes through the wire. The coil in your car fires AC current which travels over the skin of the wire and not through the wire. You are comparing apples to oranges when they are talking what ohm a wire is.

 

Interesting...

Has anyone even come close to their claims? independent dyno test?

 

Thanks for sharing that - I got a kick out of a lot of the writing. My kind of humor.

 

I don't and won't use anything with that brand shown in the OP.

Google "granatelli problems"

Elmer

 

I guess I am a major cynic. If GM could get 11-14HP/17 ft lbs of torque from a simple wire change, GM would have done it, easy for their engineers. As though Granatelli has more engineering expertise than GM.

That much power/torque with no added fuel needed would probably give them 0.1-.2mpg more on the highway and to a company like GM, that does matter for corporate CAFE issues. Don

 

You just hit the head of the nail. If GM could gain the power and fuel economy by switching the wires than they would have. I have never seen a gain in power by switching wires unless you had a bad one. Magnacore makes our Zip wires, the only reason we have them over the stock ones is because we run a different boot and heat protection. Other than that, there is no performance gain to he had over the stock wires, GM is already using a great wire.

 

The spark itself is the interference generator and resistor plugs and resistance wire helps to keep that interference from being conducted from the plug to the rest of the ignition system which would otherwise radiate and could also be inductively coupled to other systems causing data comm errors along with radio interference. Think of the spark as a little lightning bolt which is a great broadband noise (i.e. interference) generator. The plug itself provides significant shunt capacitance to ground and the resistance in the plug and cable make the capacitive path to ground more attractive for the interference rather than radiating via the wire.

Very little current flows via the spark so there is no significant voltage drop through the cable and thus no magic horsepower gain from "zero resistance" cables. The only situation I am aware of where resistor plugs and wires were an issue was for much older carburetor fed marine engines that typically ran fully loaded at operational red line for long periods of time and the lower output ignition systems of the day would result in insufficient spark voltage but that was prior to even the most basic CD type ignition systems. My guess is that if a plug fouled in one of these old engines the now resistance loaded system wouldn't be up to firing that plug.

Some of these wire companies play fast and loose with the terms EMI and RFI to impress customers. RFI (Radio Frequency Interference) is just a portion of the overall EMI (ElectroMagnetic Interference) spectrum. RF is electromagnetic radiation just as are visual light, X-rays, etc. although fortunately we don't have to worry about X-Ray radiation from ignitions systems no matter what wire is used

I am surprised nobody is trying to sell a spark plug wire version of "oxygen free copper" cable which does a wonderful job of separating people from money in the audio marketplace. My favorite was a company which sold replacement 6 foot power cables for home theater equipment ranging in price from $700 for the basic cord up to more than $6,000 for a custom built cord that was also properly broken in before shipping. I wondered whether the idiots who buy that stuff ever wonder what happens to the poor electric current that has to flow through all of that standard copper in their household wiring before it gets to that special voodoo super duper power cord

 

You're talking about Camelot, right?

I have a Sir Bors here that somebody paid over $1000 for - I bought it for $30 at an estate sale because of the nice IEC connectors on it.

Some interconnects make for a legit improvement, but power cables always made me laugh. Conditioners, on the other hand, are a different story.

 

Hi Theta,

I believe the company I was thinking of has disappeared to the world of lost scam artists. But it looks like "Crystal Power" is ready to takes its place. For a mere $10,000 you too can own the "Absolute Dream" AC power cable. And we have the nerve to complain about "Corvette Tax" pricing

http://www.thecableco.com/Product/ca...d=334&mid=7107

Too bad they designed out the gas cap for the C7. I was ready to market my special acoustic anti-resonance replacement gas cap that restores power normally lost when sound waves negatively impact hydrocarbon molecules lowering effective octane. A real steal at only $999.95.

 

In general, "high end" theater systems crack me up.

 

May need to a few gig's!

 

7.1 systems!

 

Any further independent testing (or actual user benchmarked before/after dyno's) validating Granatelli's claim (or is it fraudulent)?

 

I watched the video as well. Listen real carefully, and the guy says, "now we are going to change the plug wires and coils". So it seems to me the dyno pulls with the gains included coils, which is very misleading because they are claiming plug wires only.

I bought a Granatelli MAF for my LS2 with great claims of added HP. The car was actually slower. When my tuner saw it, he laughed and threw it in the garbage

 

LOL @ the snakeoil they sell. The OEM plug wires are fine... have been since the C5. They're only about 6" long. Any increases would mean you had a defective or damaged OEM part. The only performance increase you'll get from aftermarket wires is a lighter wallet.

 

All snake oil!

Elmer

 

I think snake oil! Which is a lot of "Granatelli Stuff!
Been around 12-15 seeing his stuff. Unless you change the demand for voltage by enlarging the plug gap. Your gaining nothing.

I would use a 100.00 set of MSD wires instead.


I used to run a 65,000 volt huge coil (half toaster size and .070
plug gaps with indexed plugs and had better ignition and more power.

 

Oh god not this thread again -- burn it with fire!!!!