She was the most likeable pedant I ever met. '03 Khaki Rubicon , Warn bumper , 8000lb winch, Rocky Road 2" Lift, 1" BL, Canyon Crawler rear bumper, 255/85r16 BFG M/T KMs, 3/4inch spacers up front, JKS Quicker Disconnects(2.5"-6"). Its very important to verify that your spark plug wires are compatible with the ignition system, or any on-board electronics in general. wires moroso plug spark ultra racing degree resistance low straight speedwaymotors If you lower the resistance too low(IE: battery cable) you will transfer more amperage which will, melt plugs among other things. Whether you do a complete tune-up or only change the spark plugs, spark plug wires (also known as ignition cables) should always be checked first. I have included some more Info re the MSD Super Conductor leads from the MSD Website below: The MSD 8.5mm Super Conductor Wire is "the" performance wire.Engineered from the inside out, the 8.5 offers everything you have ever wanted in a wire; incredibly low resistance without electronic interference! The Fora platform includes forum software by XenForo, http://www.msdignition.com/pdf/tech%20b top_10.pdf, TJ Suspension and Steering, Tires and Wheels, VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. conductor spark 5mm resistance msd plug wire feet low super Wire insulation thats damaged by head can allow voltage to jump to the ground rather than jumping the gap at the bottom of the spark plug. 2022 DRiV Incorporated. Will low resistance spark plug wires and a high output coil make, F54 :: Clubman Stock Problems/Issues (2015+). Further investigation showed that the front two front spark plugs (Cylinders 1 and 3) were completely fouled with thick black carbon, resulting in absolutely No Spark. Ray I dont dispute that you need suppression particularly in a modern car, but Im just answering the writers question on failure of his ignition system - its not likely caused by his choice of solid wire. More current, more heat and induced noise in the rest of the electrical system. Much to my surprise (After spending quite a few of my Race $$ on this high quality set of Race Leads), the plug lead I was holding in my hand had an inner core that I can only describe as a tiny 2.5mm black flexible rubber o-ring stretched out straight. Simply attach or hold a meter probe on each end of the cable and read the total resistance on the meter. My question is, is that right? msd plug lt1 firebird otvc conductor resistance tailored With lower res. The reason for the high resistance plug wires and plugs is to keep current to a minimum. None. If a spark jumps from a plug wire to the test light at any point, this is an indication that the insulation has broken down, and the spark plug wire should be replaced. Are we speaking about a different system to the usual Pertronix trigger? spark wires plug harley glide accel shovelhead 8mm fxwg sturgis fxb wide fx fxs rider low super ignition This causes an increase in the voltage required to fire the spark plug, which could damage the ignition coil as well as the spark plug wires. I know that Spark Plug Lead manufacturers advertise graphite core, carbon core, low resistance leads etc, but come on, whilst the material that this core did indeed have a low resistance (As stated by the manufacturer), the inner core was clearly manufactured from was flexible like rubber substance and was OBVIOUSLY the cause of my poor spark, my engine problems and my frustration. A good friend of mine Kevin happened to be visiting our race shop whilst I was again busy changing my spark plugs (for the 6th time in a few short months) and asked me if the problem could be a spark plug lead. It obviously is physically possible and it is also possible to disobey instructions. That is the lowest resistance of any helically wound wire. Now, you may want to be careful you do not have too much resistance since you have your wire resistance and possibly your spark plug end resistance. (hotter spark, better burn ) would this affect cb's- radios-ect.) Having solid wires means there is more likely to be a high-voltage oscillation jammed back into the Pertronix module. ARE "LOW RESISTANCE" SPARK PLUG LEADS ALL THE SAME? msd 5mm ignition I was super excited and Kevin was feeling a bit smug knowing it was he that had suggested the lead or leads in the first place. DO NOT USE WITH SOLID CORE SPARK PLUG WIRES. Once this happens, voltage can jump to ground instead of reaching the spark plug. Terry, follow the secondary circuit after it goes through the spark plug and to the engine ground. When the resistance is in the spark plug end, all cylinders have the same resistance. Like Geo Ive run many miles with a Pertronix ignition and copper wires. We encourage you to consult with a certified technician or mechanic if you have specific questions or concerns relating to any of the topics covered herein.Under no circumstances will we be liable for any loss or damage caused by your reliance on any content. Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! Its possible they have changed the internal components, so it will fail if you use them, but I suspect its because they want you to be good citizens. Problem was no spark. I also have many brake components that came with warnings of the dangers of DOT5 - which I also ignored. The failure is NOT in the wires, it is in the Pertronix itself. So, whats the verdict? cap is probably about 5000 ohms. The issue is that most primary wiring now has many thousands of ohms resistance for modern highly computerized cars and .that is the point I am making. Did anybody know that till I told them? Archive - The instructions for mine - admittedly its older, dont say anything about the wires. Problem with nonshielded type wires and low resistance plugs is they create higher EMF `s(electromagnetic fields) and while modern ignition systems are mildly shielded they can cause havoc with the computers reading millivolt and milliamp signals and can produce "dirty" power throughout the electrics. conductor spark 5mm resistance msd plug wire feet low super Pertronix says no solid core wire, but they dont tell you why. Its not necessarily about making sure the ignition doesnt interfere with your radio. Chances are your copper wires were fine, as chances are your Champion spark plug ends had enough resistance in them. d029 3l The brand new leads I was running on the Small Block were indeed new, but a Brand and Type I had never used before. Resistor wires will work just fine, and will also NOT create radio interference around your car. Why use them? As it unravelled it revealed a stiff inner core that felt very different to the rubber feeling core that I found in my questionable plug lead. http://www.pertronix.com.au/ignitor3.html. When our new small block Chev engine was screaming between 5000 and 8000 RPM on the engine Dyno our new race engine showed absolutely no signs of poor spark or poor performance. At the high tension wire to spark plug connection, you need to strip away enough insulation so that you can fold back the core over the wire insulation so that when you crimp the connector to the wire, it touches the core fibre. ULTIMATE IFS WHEEL TRAVEL - THE SEARCH IS OVER, SOME THREAD LOCKERS CAN AFFECT BOLT TORQUE - BE CAREFUL. Note: Try to avoid direct contact with metal parts of the vehicle when checking for shorts., Remove a spark plug wire from any plug. I believe should not is the right expression. If you have lower resistance wires then you will have higher current flow through the wires. However, some OEMs have recommended different maximum resistances. Plug Wires, Taylor,accel,magnecor,and Msd Wires. Common signs of failing spark plug wires include a decrease in power, acceleration, and fuel efficiency. {{lede.date | date:'dd-MMM-yyyy'}}{{lede.tags.length > 0 && lede.date ? ' Resistance is not the most important detail to be concerned with when choosing spark plug wires. I want the best possible wire but not at the expense of ticking sounds coming though my system. This EMI can create confusion with electronics and ultimately damage them. Perhaps the resistance of the Champion plug connectors saved me. Heres a guide for installing new wires if its time for replacements.. ford plug spark wires boot mustang parts v8 wire spiral wound 9mm degree racing performance valve 6l ignition electrical Without even looking at the data logger or exhaust temps, we quickly removed the first four plugs and sure enough they were again covered in black soot and carbon, resulting in NO SPARK. And youll find the same recommendations on most electronic ignitions, including EDIS. But I also noticed when I got the meter lead near the primary coil wire, I noticed a small spark jumping. It should help with figuring out the spark plug wire being used on your engine. I have since purchased a 20 Metre length of the MSD 8.5mm wire and the MSD plug lead crimps and I keep them all on my race trailer just in case!! ford plug spark wires boot mustang parts v8 wire spiral wound 9mm degree racing performance valve 6l ignition electrical If you are running original type points distrubutor you want as close to zero resistance as possible. Learn more about quality spark plugs, find your car part, or find where to buy your auto part today. If you do not understand it, here is a link to a discussion a while back: It is unlikely all 6 wires failed. wires spark plug corvette chevrolet lt1 ignition 2mm 7l mm 8l camaro v6 chevy huge To say a little more on that, I find that both of those numbers that you gave are considered relatively low. Check the fuel system and/or stark timing. After loading the truck up on the trailer and moving it around the workshop (dozens of times) to make way for other vehicles, our crew began to notice the bad idle and backfiring had returned! Keep in mind PerTronix ignitions need carbon-suppression, or spiral-wound wire: TurboWerx Exa Oil Pump Review - Should you buy one? Crack the engine and check for a good spark at the spark tester. I don't know if this is "normal". Tom, Powered by Discourse, best viewed with JavaScript enabled, mallory_instructions_unilite_distributor_37_38_45_47.pdf, Fact/Fiction, secondary circuit - E-Type - Jag-lovers Forums. spark plug 8mm bravex wire yellow iperfectlist I then grabbed 3 month old, super duper low resistance, Brand XXX racing plug lead (I have not mentioned the Brand - it makes my blood boil) and cut it in half to look inside. There should be a regular spark as you crank. spark plug wire resistance supper 5mm silicone copper electric low saab buick cadillac pontiac hummer gmc chevrolet pack THEY CAN AND WILL FRY THE COIL DRIVER ELECTRONICS. Very reliable products. A PO had installed a Pertronix ignitor in my 65 S1 4.2l distributor. Do Not Sell My Personal Information -, By logging into your account, you agree to our. msd Contact Us - Therefore I suggest to take the spark plug lead from the coil, leave it connected to the coil, unplug it from the distributor cap, put the end about 1/4 inch from a ground, like against the cam cover, and crank engine. If the car ran for a season, then I speculate the failure is not your high tension wiring to each cylinder. Lowest is best. Champion offers a wide variety of products for all your automotive needs.Check them out! '03 Rubi with a few mods and under the knife again Well if it is a true DIS then the best/longest lasting plug would be a dual tip platinum.Because the arc jumps both ways and DIS fire twice as often.A true dual tip Iridium would be even better as it is a more durable metal and has a lower resistance than Platinum but it would be pretty expensive if they ever made such a beast. If no spark, problem is low tension circuit and either 12 Volt wiring to Pertronix is not provding 12 Volts or failure of Pertronix, or Pertronix gap changed because screw holding Pertronix to plate loose and Pertronix gap to magnet changed (unlikely). Measure. Look for any signs of melting or cracking. Ive used both resistor plugs and non resistor plugs, all without issue. msd conductor On another tangent, the OP indicates hes planning on using his new Pertronix carbon core/spiral-wound plug wires with his Champion spark plug terminals. msd conductor Use tab to navigate through the menu items. Most wires should have 650-700 Ohms per Foot if they are in good condition. I then stripped the shiny and brightly coloured (Yes they did indeed LOOK like they belong on a race car) silicon outer layer to reveal the conductor core of the plug lead (the bit that sends the electrical spark to the plug). wires moroso plug spark ultra racing degree resistance low straight speedwaymotors Typical wire resistance is ~1K, ,and the Champion ends can be much higher. Keep in mind that all of this happens in a few milli-seconds. I noticed I have solid wires in my boat. Even with the fouled plugs, the engine ran fine. What is the purpose or application of solid wires? Here I was sitting at my bench with a super duper brand XXX Plug lead with nothing inside it but what appeared to be a black rubber band and an old MSD lead with multiple layers of insulation, heat proof fibreglass, large conductor core and some sort of tiny copper wire wound tightly around the core. I then concluded that whilst the leads I had purchased previously were indeed low resistance (I even tested them with a multimeter), the inner core that provided the low resistance on paper, looked like rubber, felt like rubber and performed like crap at sending a 40,000 Volt spark to my plugs. The next two spark plugs (2 and 3) were removed and found to be black with carbon, (not quite as bad as 1 and 2) and the rear most plugs (5-8) were a nice Tan colour as we saw on the Dyno. ls1 ls6 Solid metal (copper, tin-plated copper and/or stainless steel) conductor wires are still used in racing on carbureted engines, but can cause all sorts of running problems if used on vehicles with electronic ignition, fuel injection and engine management systems, particularly if vehicle is driven on the street and damage to some original equipment and aftermarket electronic ignition and engine management systems can occur. JavaScript is disabled. But for best spark, have some resistance. I have the needed resistance in the spark plug ends. Higher resistance in series means less current for a given voltage magnitude - ohms law, so Bradlybob is correct. Terms of Service - Most distributor caps sold for Jaguars today have a brush that has 5000 ohms. Even with the fouled spark plug, the dead cylinder that was fitted with the MSD Lead fitted came back to life and the exhaust temp of that cylinder came back tonormal. Some other voltages were on the wire the meter was not picking up. Any guidance would be appreciated. Show me why that is so if it is. DO NOT USE SOLID CORE (COPPER CORE OR STAINLESS STEEL CORE) SPARK PLUG WIRE WITH ANY ELECTRONIC IGNITION SYSTEM, https://pitstopusa.com/p-4155-msd-ignition-tech.html. If you have lower resistance wires then you will have higher current flow through the wires. msd conductor That said, I have driven tens of thousands of miles with an in-distributor electronic ignition and copper core wires. Then after you do each connection. Same with the coil I suppose. A damaged boot can impede proper spark plug wire seating and performance. Our Digital Dash quickly pointed out the problem - the front four engine cylinders were burning at lower temps than the rear cylinders. The high resistance of the wires keeps the actual current flow very low but still presents 1000's of volts of voltage potential to the spark plug gap. The hot plasma of the spark ignites the compressed fuel/air mixture that is just waiting for any excuse to explode. Do the Pertronix wires have some kind of connector already attached to the distributor end of the wire? I then had a strange sense of Dj vu I remember having a similar conversation when I purchased the questionable set of leads a few months earlier from another race shop. d029 3l Well if it is a true DIS then the best/longest lasting plug would be a dual tip platinum.Because the arc jumps both ways and DIS fire twice as often.A true dual tip Iridium would be even better as it is a more durable metal and has a lower resistance than Platinum but it would be pretty expensive if they ever made such a beast.I`m pretty sure AC and Autolite make a reasonably priced dual tip with the extended electrode design that the 4.0l likes.Dr is right the computer is looking for missfires so if thats a problem it should show up.I honestly doubt you would see a substantial improvement in performance you just wouldnt have to change them as often.Kind of like extended service synthetic oil,though you might see some increases due to the decrease in frictional losses.The MSD 6AL I feel would help the ignition system burn every drop of fuel more completly if it can be used in the Ruby.I have done emission testing on non catted vehicels and they have always read less HC/CO/NOX with the MSD`s, More resistance = More amps or at least it should.