Anyway, lower allows more voltage to the spark plug and that is the goal. Go back to the suppliers website and look at the spec of wires you purchased. This has been more than adequately proven by the failures on this forum alone, let alone countless others. Besides, everyone knows the red ones are "faster". Modifications specific to the MINI Cooper (R50). Keep in mind that all of this happens in a few milli-seconds. 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. With all PerTronix ignitions we recommend that a suppression style spark plug wire (also called carbon core) be used.

It obviously is physically possible and it is also possible to disobey instructions. 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. By the way some high resistance wire will NOT send the small tester 1.5 V battery current along a several foot length, so you get no continuity light. {{lede.date | date:'dd-MMM-yyyy'}}{{lede.tags.length > 0 && lede.date ? ' 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. Do what you want with your Pertronixdont mess with my points distributor. You sound like you have six of them and they are connected to the electronics in your distributor. Zero. As to your copper wires.

Ray I couldnt agree more that you should run resistance in your system - it works better, but it doesnt need to come from the wires. Repro Champion ends have also created a huge number of problems for many people over the years. So, whats the verdict? The brand new leads I was running on the Small Block were indeed new, but a Brand and Type I had never used before. Click here to search for Mopar cars and parts for sale. That low of a resistance wire will also cause distributor and coil problems. Run low resistance:get close and side by side to that brand new BMWand blow all its electronics!! My boat uses the old style points and condenser system. Imagine the electrical system you would need to have to if you were using more current and less voltage to generate a spark. There just has to be enough resistance somewhere in the system. In addition, the engine light coming on or visible damange to the cables can be signs of a failing wire. A damaged boot can impede proper spark plug wire seating and performance. Mallory has a pretty clear warning for their Unilite products: To prevent false triggering and possible premature ignition failure, you must use suppression type (carbon core, spiral core, or radio suppression core) spark plug wire. TurboWerx Exa Oil Pump Review - Should you buy one? Solid Core wires do not suppress any Electro Magnetic Interference (EMI) which will interfere with electronics or rev limiters on your vehicle. In summary, dont get fooled by Brand XXX race lead with Super Low ohms per foot or silly comparison charts showing how great one lead is compared to the other. Use what has worked for you in the past and if you are new to this sort of thing or if you are ever in doubt, use what millions of racers use worldwide - grab a set of MSD leads and relax knowing that any future engine misfires or headaches will NOT be caused by the spark plug leads! Then you add plugs, wires, caps, and a lead to the coil from the distributor, all with resistance and wonder why you have poor ignition performance. We also used to sell tons of Pertronix modules. Perhaps the resistance of the Champion plug connectors saved me. 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. Problem was no spark. Most experts will not agree. My question is, is that right? Are we speaking about a different system to the usual Pertronix trigger? Many modern wire sets are for modern cars that require tons and tons, like 50,000 ohms of resistance. For a better experience, please enable JavaScript in your browser before proceeding. Crank the engine and check for a good spark at the spark tester gap.. What are your Spark Plug Lead Conductors made of? 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. Vibration damage Constant wear and tear caused by engine vibration can loosen the electrical connection at the spark plug. Differences in resistance wire-to-wire do not matter one bit. When we had the engine on the Dyno, because of the longer lead lengths needed to fit the engine and computer harness onto the Dyno, our team had used some old leads from one of our big block Hummer Engines. The coil creates thousands of volts that it supplys to the spark plugs via the plug wires. Like Geo Ive run many miles with a Pertronix ignition and copper wires. That said, I have driven tens of thousands of miles with an in-distributor electronic ignition and copper core wires. Ive used both resistor plugs and non resistor plugs, all without issue. Are we speaking about a different system to the usual Pertronix trigger? Come join the discussion about performance, modifications, classifieds, troubleshooting, maintenance, and more! I have had no problem with the copper core wires and a Pertronix (or Petronix knock-off) but then I have genuine Champion plug connectors. The Society of Automotive Engineers suggests the maximum resistance should be 12,000 ohms-per-foot. Nick. If you have lower resistance wires then you will have higher current flow through the wires. Which Is Better? The following errors occurred with your submission. JavaScript is disabled. But I also noticed when I got the meter lead near the primary coil wire, I noticed a small spark jumping. 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). Resistance is not the most important detail to be concerned with when choosing spark plug wires. There should be a regular spark as you crank. You want the LEAST resistance possibleso you can have more electric spark energy. 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. Every time we put in a new set of plugs, the engine was FINE when driven hard, but when driven at low speeds, moving the truck back and forth to car shows and events, and around our property, the front four spark plugs would simply foul up after 10-20 minutes of low speed driving. They have some there that are 500 ohms per foot. '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. Ignition Wiring - Rod & Custom Magazine. The reason for the high resistance plug wires and plugs is to keep current to a minimum. Same with the coil I suppose. I purchased a set of Flame-Thrower low resistance wires from Pertronix. If problem is low tension circuit, I would suggest to put the points back and see if there is spark. Solid Core Wires: You cannot run Solid Core Spark Plug Wires with an MSD Ignition Control. Why use them? If you lower the resistance too low(IE: battery cable) you will transfer more amperage which will, melt plugs among other things. If a spark is present, the problem is probably in the distributor cap, rotor or spark plug wires. 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. Resistance should be zero or close to (ie less than 1 ohm there is oxidation that will raise resistance a bit). The outer sleeve that surrounds the conductor assembly is just as impressive. Advertising - 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. THEY CAN AND WILL FRY THE COIL DRIVER ELECTRONICS. Quality of the wires should a prime consideration. If there is a regular spark, problem is rotor or distributor cap. Attach the spark tester to the distributor end of the coil wire. Not all copper wires will cause failures. and can tell you what the gap to rotor magnet should be. 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. My understanding from one of the usuals some while back is that the Champion spark plug screw-in terminals are not compatible with carbon core or spiral-wound plug wire - they are designed to be used with solid core plug wire only. I immediately thought, Now we were getting somewhere. Manage Preferences - A forum community dedicated to Jeep Wrangler Rubicon owners and enthusiasts. But for best spark, have some resistance. Crack the engine and check for a good spark at the spark tester. Be sure to first check spark plug wires for visual damage. I have the needed resistance in the spark plug ends. My favourite is the sign at the foot of the escalators on the London Underground:- Dogs must be carried. The voltages read fine, 14 volts alternator voltage. It should help with figuring out the spark plug wire being used on your engine. So if the only "problem" your spark plug wires have is being OEM, it ain't gonna help to replace them. If you did not see a spark, remove the coil wire from the distributor cap. Proper wires solved the problem there too. Some other voltages were on the wire the meter was not picking up. DO NOT USE SOLID CORE WRES WITH ELECTRONIC IGNITION!! The issue in the post was a narrow one - why did his ignition fail? The conductor is wound extremely tight around a special centre core. Nick, Turns out, solid core wires were indeed installed, so I purchased a set of Flame-Thrower low resistance wires from Pertronix I carefully removed the old solid core wires and disconnected (unscrewed) the Champion spark plug ends , I cut them to length and stripped about 3/8 to 1/2" of the insulation to leave the carbon core exposed. Once this happens, voltage can jump to ground instead of reaching the spark plug. Not changing the gap is fine if they are consistent however I found that perhaps due to shipping that the gaps were all over the place. This winding procedure, combined with a Ferro-magnetic impregnated centre core, produces an extremely effective Electro Magnetic Interference (EMI) "choke". 100 ohms is a very very very small resistanceit will be there. You cannot use solid core (typically copper) spark plug wires with this product. Typically measuring 5000 ohms when new many quickly deteriorate to infinity, but surprisingly they often continue to work. My first thought was the primary circuit was for some reason drawing too much current.

Has anyone ever heard of this trick. Show me why that is so if it is. Given that you did have a failure, I suggest you check the distributor cap contacts for continuity (ie from inside of cap to outside with ohm meter. Terms of Service - Ahhhthanks for the link. Using silicone lubricant spray, I snaked the wires back thru the conduit to the distributor. Whilst I appreciate that Kevin is a very smart business person, a race engine builder he is NOT, so I initially shrugged off his Silly idea suggesting to Kevin that all four front cylinders are playing up and the chances of me having Four Dead leads in a single batch were pretty low because the plug leads were brand new only 3 months ago. Turns but no fire! 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. But, IMO, it does not matter whether the resistance is in the wire or the spark plug end. (hotter spark, better burn ) would this affect cb's- radios-ect.) type ignition as in three coil fireing the six plugs.He said it is a coil on plug type setup so in theroy there should be 6 coils in that rail. To prepare the new wires, I cut them to length and stripped about 3/8 to 1/2" of the insulation to leave the carbon core exposed. 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. But I can only imagine they would cause lots of rf interference. The suppression wires do an excellent job of controlling the EMI with no degradation to the ignition performance. I was simply not in the mood for testing another brand of Super Race Leads!! I changed the plugs one more time and when we took the truck for another test session. Turns out, solid core wires were indeed installed, so I purchased a set of Flame-Thrower low resistance wires from Pertronix. It returns to the coil through the points or in this case the Pertronix module. Equally important there is NO performance advantage whatsoever to solid-core wires. My English teacher Miss Handley would point out that you can, but you may not. This is necessary due to the aging of the spark plug wires from exposure to extreme temperatures (hot and cold), engine chemicals (oil, grease, coolant, etc.) Tom Das others have noted there is plenty of resistance in the combination of parts, including oft installed supressors, so that zero resistance is of course not a possibility in the entire ignition system, and close to zero for the wires is a goal for points distributors: the wire will have some small resistance, but without doubt, no more resistance is needed to be added in the primary wires. The resistance should ALWAYS be measurable, so there is definitely a problem somewhere in the new wires, Champion ends, or the distributor-side wire ends. A PO had installed a Pertronix ignitor in my 65 S1 4.2l distributor. '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"). Tom.

Spark plug wires most definitely will affect the primary circuit. Terry, follow the secondary circuit after it goes through the spark plug and to the engine ground. 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!

I bought some Accels once that were over 600 ohms per foot. Higher resistance in series means less current for a given voltage magnitude - ohms law, so Bradlybob is correct. If I am understanding how you are measuring, yes you should have resistance, often about 1000 ohms per foot, but it does depend on your wire. I suppose I got into the copper core preference from using them on my Triumphs as the distributor cap connections are the pointy-screw variety and do not work well the the silicone/carbon variety of wires. Captains log: Still alive, Sept 2015.If anyone needs me, send me an email to. 4wd trophy truck proformance transfer case, coast drive side ring gear dana 80 ifs dana 60 ifs, ifs irs diff oil cooler oil viscosity ultra 4 rock, narrow ifs differential dana 80 dana 60 ifs profor, turbowerx mini exa oil flow rates failure. Attach a spark tester to the wire and to an engine ground. After many months of annoying black spark plugs, Proformance Motorsport recently changed our Spark Plug Leads to the Awesome MSD 8.5mm Super Conductor Leads. Most distributor caps sold for Jaguars today have a brush that has 5000 ohms. With lower res. They want to see at least about 100 ohms in the secondary circuit to help slow down and extend the spark. I hope this has been useful to someone in race car land and prevents the hours of frustration we went through to find the cause of our problem. So then, what typically causes cold start bogging / sputtering for the R53. cap is probably about 5000 ohms.

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