Moparchat - Home of MOPAR enthusiasts worldwide! Perhaps the resistance of the Champion plug connectors saved me. Weak sparks are orange or red and may be hard to see in daylight. Check the fuel system and/or stark timing. 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! JavaScript is disabled. With all PerTronix ignitions we recommend that a suppression style spark plug wire (also called carbon core) be used. Spark plug wires most definitely will affect the primary circuit. wires moroso plug spark ultra racing degree resistance low straight speedwaymotors I have a Pertronix in my car so I have its install instructions (somewhere!) 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. To accomplish this, we use a copper alloy conductor due to its great voltage carrying capabilities. DO NOT USE SOLID CORE WRES WITH ELECTRONIC IGNITION!!

The suppression wires do an excellent job of controlling the EMI with no degradation to the ignition performance. With lower res. Not sure what I am doing wrong here.

14 volts does not typically cause a spark. Same with the coil I suppose. Contact Us - Solid Core wires do not suppress any Electro Magnetic Interference (EMI) which will interfere with electronics or rev limiters on your vehicle. Perhaps you will believe the Pertronix Ignitor installations instructions: WARNING!!! That said, I have driven tens of thousands of miles with an in-distributor electronic ignition and copper core wires. But, IMO, it does not matter whether the resistance is in the wire or the spark plug end. 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.

You sound like you have six of them and they are connected to the electronics in your distributor.

cap is probably about 5000 ohms. The content contained in this article is for entertainment and informational purposes only and should not be used in lieu of seeking professional advice from a certified technician or mechanic. If you did not see a spark, remove the coil wire from the distributor cap.

We also used to sell tons of Pertronix modules. The issue in the post was a narrow one - why did his ignition fail? Best advise about them is not to use them, and particularly if you are not entering JCNA concours with the car. RFI should not be a problem.

Now to compare, I then grabbed the old MSD 8.5 Super Conductor Lead, cut it in half and again stripped the Outer Layer off to reveal a much larger conductor core that had a tiny wire strand would tightly around the core. (Dont you hate it when one of your mates pops around and solves your 3-month problem in a few seconds)? My boat uses the old style points and condenser system. I don't know if this is "normal". He would replace the module, then about a month later, the module would fail. 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. 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. 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. Fact/Fiction, secondary circuit - E-Type - Jag-lovers Forums I believe Robert gives a description, and there is a poorly drawn diagram. The motor sounded awesome, our crew was excited and we all thought Job Done, lets get it bolted into the race truck! Modifications specific to the MINI Cooper (R50). The hot plasma of the spark ignites the compressed fuel/air mixture that is just waiting for any excuse to explode. 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. Should I be able to get continuity and a resistance reading from the distributor end of the wire to the spark plug connection? DO NOT USE WITH SOLID CORE SPARK PLUG WIRES. This winding procedure, combined with a Ferro-magnetic impregnated centre core, produces an extremely effective Electro Magnetic Interference (EMI) "choke".

After screwing the first Champion spark plug end into the wire, I used an ohm meter to test the resistance from the distributor end to the spark plug connection. For all 7 spark paths). Ahhhthanks for the link. The voltages read fine, 14 volts alternator voltage. But I can only imagine they would cause lots of rf interference. 's p#'s. 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. Even with the fouled plugs, the engine ran fine. Pertronix says no solid core wire, but they dont tell you why.



If you do not understand it, here is a link to a discussion a while back:

Consult a tune-up manual for exact specifications.. 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. ARE "LOW RESISTANCE" SPARK PLUG LEADS ALL THE SAME? .Doctor D has said that the Jeep is a non D.I.S. Its not necessarily about making sure the ignition doesnt interfere with your radio.

Scott Bryce - Owner Proformance Motorsport. Thats curious about resistance wires and Pertronix. Look for any signs of melting or cracking. Nick. After screwing the first Champion spark plug end into the wire . And why would they, as the Pertronix Ignitor is not connected to the ignition wires, it just triggers the coil to work. Its important to keep an eye on your spark plug wires to avoid subsequent engine issues. It would be an idea to check resistance before you assemble wires to the distributor. Purchase a brand of ignition components that you know and trust (Not some new brand that comes from china in a shiny box with a comparison chart). carkart Cookie Policy - The failure is NOT in the wires, it is in the Pertronix itself. Advertising - 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. resistance wires spark moroso plug ultra racing low degree straight Do Not Sell My Personal Information -, By logging into your account, you agree to our. 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. Not satisfied with the test results, I had to know why one lead worked and the other did not. The failures took several weeks after a new module to fail. I was simply not in the mood for testing another brand of Super Race Leads!! The car ran for a season, but I ended up broken down while on a Sunday drive. THEY CAN AND WILL FRY THE COIL DRIVER ELECTRONICS.

Do the Pertronix wires have some kind of connector already attached to the distributor end of the wire? Solid core wires do not suppress electro magnetic interference (EMT) which will interfere with electronics in your vehicle. 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. The brand new leads I was running on the Small Block were indeed new, but a Brand and Type I had never used before. The reason for the high resistance plug wires and plugs is to keep current to a minimum. Ive used both resistor plugs and non resistor plugs, all without issue. Needless to say, I was very impressed with the MSD Lead, when compared to the rubbish lead that I was holding in my other hand. Most distributor caps sold for Jaguars today have a brush that has 5000 ohms. A quick change of the front four spark plugs (Cylinders 1-4) saw the engine come to back life and BOOM, our race truck engine was again the fire-breathing beast we all saw on the engine Dyno. So tight in fact, that there is over 40 feet of conductor wrapped into a single foot of plug wire. Common signs of failing spark plug wires include a decrease in power, acceleration, and fuel efficiency. Turns but no fire! It is NOT just about reducing radio interference, it is just as much about NOT killing the electronic ignition module itself. 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. TurboWerx Exa Oil Pump Review - Should you buy one? I understand Pertronix wants resistance in the wires. If a spark is present, the problem is probably in the distributor cap, rotor or spark plug wires. Its very important to verify that your spark plug wires are compatible with the ignition system, or any on-board electronics in general. Manuf. Measure. The meter said no continuity. Differences in resistance wire-to-wire do not matter one bit. I would have NEVER believed that a set of plug leads could have caused so much frustration and so many headaches to my team. 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). Terms of Service - Do what you want with your Pertronixdont mess with my points distributor. 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.) Some other voltages were on the wire the meter was not picking up. When the resistance is in the spark plug end, all cylinders have the same resistance. Has anyone ever heard of this trick. I forget. Typical wire resistance is ~1K, ,and the Champion ends can be much higher. But I also noticed when I got the meter lead near the primary coil wire, I noticed a small spark jumping. Learn more about quality spark plugs, find your car part, or find where to buy your auto part today.

A damaged boot can impede proper spark plug wire seating and performance. The MSD 8.5mm Super Conductor Plug Wire is available in Universal Kits and Bulk Lengths. 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. Champion offers a wide variety of products for all your automotive needs.Check them out! Equally important there is NO performance advantage whatsoever to solid-core wires. So, whats the verdict? Problem was no spark. I also noticed that the MSD silicon insulator was manufactured from a few different layers/colours of silicon AND some sort of white fibreglass looking heatproof material between each of the silicon layers. So if the only "problem" your spark plug wires have is being OEM, it ain't gonna help to replace them. After a restless nights sleep (ask my wife) tossing and turning thinking I have solved one of the worlds greatest mysteries, at the crack of dawn I jumped in the car and headed straight to the nearest speed shop to grab a set of MSD Spark Plug Leads to confirm my findings and get the engine to idle without fouling plugs once and for all.

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