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spark plug wires to stay away from?

Posted by dboyle23, Apr 15, 2012

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  1. cartz-snopro

    cartz-snopro Proven Member

    Joined Feb 20, 2012
    Dekalb, Illinois
    NGK all the way
  2. ktgurl87

    ktgurl87 Proven Member

    Joined Sep 1, 2010
    Elizabeth City, North Carolina
    Found this on another thread when I searched for "spark plug wires." As soon as I find the thread I'm looking for I'll edit and post it too.

    Originally Posted by Magnacore's Website
    "LOW-RESISTANCE" SPIRAL WIRES By far the most popular conductor used in ignition wires destined for race and performance street engines are spiral conductors (a.k.a. mag, pro, super, spiral, monel, heli, energy, ferro, twin core etc.). Spiral conductors are constructed by winding fine wire around a core. Almost all manufacturers use constructions which reduce production costs in an endeavor to offer ignition component marketers and mass-merchandisers cheaper prices than those of their competitors.

    In the USA in particular, most marketers of performance parts selling their products through mass-merchandisers and speed shops include a variety of very effective high-output ignition systems together with a branded not-so-effective ignition wire line using a spiral conductor. Most perpetually try to out-do their competitors by offering spiral conductor ignition wires with the lowest electrical resistance. Some publish results which show their wires are superior to a competitor's wires which use identical cable (on which another brand name is printed). The published "low" resistance (per foot) is measured with a test ohmmeter's 1 volt direct current (DC) passing through the entire length of the fine wire used for the spiral conductor.

    "Low-resistance" conductors are an easy sell, as most people associate all ignition wire conductors with original equipment and replacement ignition wire carbon conductors (which progressively fail as a result of microscopic carbon granules burning away and thus reducing the spark energy to the spark plugs) and with solid wire zero-resistance conductors that were used by racers with no need for suppression. Consumers are easily led into believing that if a spiral conductor's resistance is almost zero, its performance must be similar to that of a solid metal conductor all race cars once used. HOWEVER, NOTHING IS FURTHER FROM THE TRUTH!

    What is not generally understood (or is ignored) is that as a result of the laws of electricity, the potential 45,000 plus volts (with alternating current characteristics) from the ignition coil (a pulse type transformer) does not flow through the entire the length of fine wire used for a spiral conductor like the 1 volt DC voltage from a test ohmmeter, but flows in a magnetic field surrounding the outermost surface of the spiral windings (skin effect). The same skin effect applies equally to the same pulsating flow of current passing through carbon and solid metal conductors.

    A spiral conductor with a low electrical resistance measured by an ohmmeter indicates, in reality, nothing other than less of the expensive fine wire is used for the conductor windings — a construction which cannot achieve a clean and efficient current flow through the magnetic field surrounding the windings, resulting in poor suppression for RFI and EMI.

    Of course, ignition wire manufacturers save a considerable amount in manufacturing costs by using less fine wire, less exotic winding machinery and less expertise to make low-resistance spiral conductors. As an incentive, they find a lucrative market amongst performance parts marketers who advertise their branded ignition wires as having "low-resistance" conductors, despite the fact that such "low-resistance" contributes nothing to make spiral ignition wires perform better, and RFI and EMI suppression is compromised.

    In recent years, most ignition wire manufacturers, to temporarily improve their spiral conductor's suppression, have resorted to coating excessively spaced spiral windings, most of which are crudely wound around strands of fiberglass or Kevlar, with a heavy layer of high-resistance carbon impregnated conductive latex or silicone compound. This type of construction hides the conductive coating's high resistance when the overall conductor is measured with a test ohmmeter, which only measures the lower resistance of the sparse spirally wound wire (the path of least resistance) under the conductive coating and ignores the high resistance of the outermost conductive coating in which the spark energy actually travels. The conductive coating is rarely shown or mentioned in advertisement illustrations.

    The suppression achieved by this practice of coating the windings is only temporary, as the spark current is forced to travel through the outermost high-resistance conductive coating in the same manner the spark current travels through the outermost high-resistance conductive coating of a carbon conductor used in most original equipment and stock replacement wires.

    In effect, (when new) a coated "low-resistance" spiral conductor's true performance is identical to that of a high-resistance carbon conductor.

    Unfortunately, and particularly with the use of high-output ignitions, the outermost high-resistance conductive coating over spiral windings acting as the conductor will fail from burn out in the same manner as carbon conductors, and although in most cases, the spiral conductor will not cease to conduct like a high-resistance carbon conductor, any RFI or EMI suppression will be lost as a consequence of the coating burning out. The worst interference will come from the so-called "super conductors" that are wound with copper (alloy) wire.

    However, despite the shortcomings of "low-resistance" spiral conductor ignition wires, these wires work satisfactorily on older production vehicles and race vehicles that do not rely on electronic engine management systems, or use on-board electronics effected by EMI — although with the lowest-resistance conductor wires, don't expect much RFI suppression on the AM band in poor reception areas.

    Some European and Japanese original equipment and replacement ignition wires including Bougicord and NGK do have spiral conductors that provide good suppression —usually none of these wires are promoted as having low- resistance conductors — however, none are ideal for competition use, as their conductors and pin-type terminations are fragile and are known to rarely last as long as good carbon conductor ignition wires.

    To be effective in carrying the full output from the ignition system and suppressing RFI and EMI in particular, spiral conductors need windings that are microscopically close to one another and precisely spaced and free from conductive coatings. To be more effective, the windings need to be wound over a core of magnetic material — a method too costly for wires sold through mass-merchandisers and most speed shops who purchase only the cheapest (to them) and most heavily promoted products.

    494  0

    1996 Mitsubishi Eclipse N/T
    · 2G DSM
  3. 99gst_racer

    99gst_racer Moderator

    Joined Apr 5, 2003
    Coloma, Michigan
    Good to know the Duralast wires suck.

    I've ran NGK, Magnecor, MSD, Accel, and Taylor, and I've never had a bad experience with any of them.

    Street Build 6K  67

    1999 Mitsubishi Eclipse GST
    609.8 whp · 541.2 lb/ft · 2G DSM
  4. jed344

    jed344 Proven Member

    Joined Jan 10, 2008
    Waterville, Iowa
    i have also ran NGK, MSD, and at the moment running accel 8mm plug wires never had a issue with any of them.

    839  26

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
  5. forcefed_90tsi

    forcefed_90tsi Proven Member

    Joined Mar 5, 2012
    albuquerque, New Mexico

    271  0

    1990 Eagle Talon TSi AWD
    · 1G DSM
  6. _DSM_

    _DSM_ Probationary Member

    Joined Sep 15, 2012
    TWINCITIES, Minnesota
    I ran Accel wires and have had troubles with them misfiring at high rpm under boost. Im going to try out MSD and see how they run.
  7. Firegst

    Firegst Proven Member

    Joined Aug 29, 2012
    Queen Creek, Arizona
    I had these wires on my gs-t for about a month and they started spark jumping like tiger to anything within 4 inches of the wire....I would just use OEM or NGK
  8. PieEyedPiper

    PieEyedPiper DSM Wiseman

    Joined Nov 13, 2004
    North Bay Area, California
    My Accel wires would cause ignition break up around 4-5k (peak power) after they got to be 4-5 years old.

    Switched to NGK premiums for 60 bucks and I'm quite happy.

    1K  0

    1998 Mitsubishi Eclipse GSX
    manual · 2G DSM
  9. turboglenn

    turboglenn Proven Member

    Joined Nov 5, 2007
    RIpley, West Virginia
    ive only had bad luck with accel and duralast wires, the set of magnecores on my car hvce been there aalmost 10 years now and are still holding up, before them i went through 3 sets of accels in 5 weeks and kept getting blowout after a few good cycles of heat got to them`
  10. SpiderGST

    SpiderGST Proven Member

    Joined Sep 13, 2011
    Frisco, Texas
    So if your going to be seeing around 700whp or more. I will be running a AEM ECM. What would the community recommend?
  11. cnordelo

    cnordelo Proven Member

    Joined Jul 21, 2011
    Orlando, Florida
    I work at advance auto. We sell those colorful accell wires. In my opinion stay away. We get come backs all the time. I would stick to ngk oem msd.

    Street Build 1K  0

    1997 Eagle Talon TSi AWD
    501.8 whp · 458.5 lb/ft · 2G DSM
  12. DUOeclipse

    DUOeclipse Proven Member

    Joined Mar 31, 2009
    Azusa, California
    I've always ran NGK and never had a problem :thumb:

    318  0

    1998 Mitsubishi Eclipse GST
    manual · 2G DSM
  13. abaum565

    abaum565 Proven Member

    Joined Aug 9, 2006
    Wausau, Wisconsin
    Napa wires, stock coils here. 38psi and HP in my Avatar

    390  0

    1998 Mitsubishi Eclipse GST
    manual · 2G DSM
  14. triggerx

    triggerx Proven Member

    Joined Aug 15, 2009
    Gilbert, Arizona
    Honestly I like ngks for results and reliability, but so far I've never had a set of wires that didn't break somewhere off the distributer. They are great when running them. I usually have a problem removing 1
  15. dsmcurse

    dsmcurse Proven Member

    Joined Aug 14, 2009
    Pasco, Washington
    the NOLOGY wires or what ever the hell there called suck bad. (you know? the kinda spark plug wires that each have there own lil ground wire strap) those suckers are expensive and look nice but they TRULY SUCK! stay away from those. ive seen massive ignition break up with those wires on not only a DSM platform but also seen those wires fail on a Honduh B-series platform.

    every body uses NGK plugs and wires because THEY SIMPLY JUST WORK THE BEST. i personally have a nice custom built intake mannifold and on top of the plenum right smack in the middle is a custom lil "battery tie down" style mounting braket. my factory coil pack is mounted there in the center allowing me to make my plug wires all equal length.

    i run equal length NGK wires down to NGK bpr7es spark pugs. have those suckers gapped pretty tight at like twenty or twenty two. this combination seems to work great for me. last summer i dyno'd at cobb tuning surgline at 505awhp right now i honestly would expect to see about 560awhp and my FACTORY coil pack with NGK plugs and wires work awsome. have no ignition troubles at all and runnin a ton of boost on a hx40. (about 33psi everyday with meth injection) NGK is what i stand by. im a firm beleiver in there products

    1K  0

    1995 Mitsubishi Eclipse GSX
    manual · 2G DSM
  16. Bmxr152

    Bmxr152 Proven Member

    Joined May 27, 2006
    Gardnerville, Nevada
    Im running accel wires and have been for 2+ years now with no problems.

    Street Build 458  0

    1992 Mitsubishi Galant VR-4
    manual · Galant VR-4
  17. Babnaw

    Babnaw Probationary Member

    Joined Oct 20, 2012
    Fuquay-Varina, North Carolina
    I'm msd 8.5 plug wires no problems I haggled with my parts store and got them down to 45 but they took a couple sys to get them in preform
  18. talon314

    talon314 Proven Member

    Joined Aug 31, 2012
    pacific, Missouri
    Stay away from anything but ngk wires. they are the best wire for our cars and are about the same price as any other wire. thats my 2cents

    370  0

    1992 Eagle Talon TSi AWD
    · 1G DSM

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