The Truth about ignition Wires?

I have several posts detailing my problems installing a stereo in my 75 GT4. My main suspect causing all the problems is my 7mm solid core ignition wires. My car runs flawlessly with them but here is where I need some technical expert advice.

I have a set of new black 114473 & 114474 new ignition wires, which are specified for mondial or injected 308's, the part specified for my 75 308 GT4 is 107364 & 107365 and are red. My question is before i go ad buy a new set of Magnecor 7MM wires or OEM red ones is: Is there any difference between the OEM set I have and the OEM red GT4 wires? I know the later cars had more powerful ignitions but have no idea whether the wires themslves are different in composition or constuction. The black ones I have read CAVIS 400 CLASSE B.

Also do you think the Magnecor claim of superior RFI and EMI suppression would be any better than the factory wires. I wnat the correct wire for my car with the most noise suppression possible without damaging my points or coils. BTW I am running non resistor black extenders with NGK BP6ES plugs

http://www.magnecor.com/magnecor1/main.htm

look under products and

MAGNECOR CONVENTIONAL HIGH PERFORMANCE WIRES
ELECTROSPORTS SERIES 7mm and 8mm IGNITION CABLES

I personally like the black solid core wires but they are making any stereo an impossibility. I dont have a OEM GT4 set but can check the resistance on the OEM black set i have this weekend. I am almost positive this is the cause of all my troubles but do not want to put the wrong wire on my car.

If anyone is interested I started using the solid core wires after reading Allen Bishop's book on Ferrari performance, and have no idea whether they are better conductors or not however I have had great luck with them, never a fouled plug, misfire and my points look new every time I look at them.

Thanks,

Rob
Image Unavailable, Please Login

 

Thanks Steve,

That answers one of my questions but I still need to know which ones to use to give me the max suppression with the closest to best performance, and if there would be any difference between the GT4 and GTBi wires or magnecor wires??? here are the specs on the Magnecor wires:

SPECIFICATIONS FOR
MAGNECOR ELECTROSPORTS 70
7mm IGNITION CABLES
These specifications are also available in PDF format.
Please look at our downloads page for more information about PDF files.

OVERALL LEAD ASSEMBLY

Outside Diameter of Cable.......... 7mm.

Colour..........................................Black.

Boot/Terminal Configuration....... Various - to suit different applications worldwide,

as well as customer special requirements.

Country of Manufacture...............Cable: USA. Assemblies: USA, UK and Australia.

CABLE

Construction Type.......................Two section: Insulator bonded to high strength, high heat

resistant outer jacket.

Insulator Material.........................High dielectric silicone rubber.

Outer Jacket Material.................. Extreme high tear strength, high temperature resistant silicone rubber.

Heat Resistance...........................205o C (400o F) service temperature.

Dielectric Strength.......................45,000 volts.

CONDUCTOR

Conductor Size............................1.9 mm in diameter.

Conductor Type............................Magnecor Metallic Inductance CN RFI and EMI Suppressed.

No conductive coatings applied.

Core.............................................Ferrimagnetic base over kevlar and fiberglass substrate.

Windings......................................77 turns per cm (200 turns per inch).

Windings Material........................Stainless steel.

Resistance...................................98.4 ohm per cm, 3K ohm per ft. + 10%.

Capacity.......................................45,000 volts, 2kVA.

TERMINALS

Spark Plug....................................Stainless steel snap-lock 180o bendable and fixed 90o styles.

Distributor and Coil.......................Brass, stainless steel and beryllium snap-lock 180o and 90o styles.

PROTECTIVE BOOTS

Spark Plug....................................Silicone 205o C (400o F) - selection of straight, 45o and 90o styles

used where applicable - special connector assemblies for some applications.

Distributor and Coil.......................EPDM or Silicone - some sets will be fitted with OE style connectors.

Rob

 

Thanks for all the info. I am not sure that it was the right thing to do but I ordered a set of the 7 mm Magnecor wires, They have been good to me over the years and I am running their solid core wires. However the 7mm wires they sell are 3000 ohm /foot , do you think that these will harm my ignition? I will check the wires I have this weekend. BTW Magnecor says they have been selling these Ferrari wires for years and said they are similar in design to the CAVIS but with more suppression?

Rob