However, thicker wires, like these Moroso Super Max II 11mm wires, can provide added RFI suppression and insulation. 2012-07-02 00:58:40 2012-07-02 00:58:40. There wasn’t even insulation. Coil number is under the wire boot and is hard to read without pulling coil pack. The most common instance of radio frequency is the phenomenon that occurs when a home mechanic replaces the plug wires on a vintage car and afterwards the radio has a pinging noise whenever the driver turns on sweet tunes while the engine is running. High-temperature-rated boots might be required if you have headers or other routing that puts the sensitive wires near a strong heat source—mainly the exhaust. 6. The higher voltage of a coil on plug or distributor system can create enough voltage that a slightly higher resistance wire will not greatly affect spark strength, but the relatively lower output of a magneto means using a lower resistance wire is more important to ensure a hot spark from the spark plug. have DENSO spark plugs....and have heard they are the best brand...but need to replace spark plug wires, distributor cap now too and need to do it asap....so went to "O Reilley's Auto Parts" and purchased their recommended brand "Import Direct" spark plug wires and distributor cap and etc...is this a good brand or does it really not matter? Answered . Not only did insulation join the features list for plug wires, increasing use of electronics as the decades wore on required the development of EMI and RFI suppression. Favorite Answer. Yet again, not quite. Per consentire a Verizon Media e ai suoi partner di trattare i tuoi dati, seleziona 'Accetto' oppure seleziona 'Gestisci impostazioni' per ulteriori informazioni e per gestire le tue preferenze in merito, tra cui negare ai partner di Verizon Media l'autorizzazione a trattare i tuoi dati personali per i loro legittimi interessi. Does it really matter? Spark plugs can vary in reach from 0.095 to 2.649 cm (0.0375 to 1.043 in), such for automotive and small engine applications. Headers are notorious for causing problems, so invest in some extra insulation to prevent your new wires from literally melting down. Over the years the demands on these humble wires have increased, and thus the technology wrapped into them has also advanced. They will intermittently stop delivering spark, making your engine miss a beat, and there's about a dozen different things that have the same symptoms. Like everything in life that is good, that insulation has side effects. Ignition systems which use a magneto are often best served by the lowest resistance wire possible. ... You need to check the coil number and choose plug wires accordingly. This article will help consumers make informed choices while dispelling some common misconceptions. Haul your horses with this Ferrari 412 pickup conversion, Wrenchin’ Wednesday: Efficient, no-mess grease packing, Chip Foose reimagines the iconic Jaguar E-type, Chip Foose reinvents the 1966 Ford Bronco with street-savvy style, Jeep Grand Wagoneer LS swap: Project accomplished, lessons learned, Watch this 56-mile Buick Grand National get a much-needed pampering, Reconfiguring a novelty ignition system requires a novel solution, Wrenchin’ Wednesday: Chopping and bending custom wrenches, Toyota skips the 2020 Nürburgring 24 Hours to prepare for the 2021 event. Once you have your wire chosen, you’ll need to connection the distributor cap (or coil, for coil on plug applications) and the spark plugs. No. If you have any additional tips, be sure to leave them in the comments below. Informazioni su dispositivo e connessione Internet, incluso l'indirizzo IP, Attività di navigazione e di ricerca durante l'utilizzo dei siti web e delle app di Verizon Media. As long as the the ignition phasing is correct, it does not matter which wire goes where. Spark plug resistance. The side effects are resistance and cost. That electrical noise can wreak havoc on everything from AM radios to engine and transmission control computers. Electromagnetic and radio-frequency interference can be a real pain in the butt. Voltage builds in a ramp regardless of how the spark is generated. Super Max II spark plug wires have two fiberglass braid layers and an intermediate silicone-EPDM layer for extra insulation, giving them a larger diameter. From there, the heat is dissipated into the cylinder head and eventually into the cooling system. By reducing the resistance in the plug wires, the coil does not have to work as hard because less voltage is lost to the resistance between the coil and spark plug. Those are the four things a gasoline-fuel engine needs to run properly. I have a 99 corolla and need to change the spark plug wires. There’s not many technical articles about spark plug wires, and for years we’ve been relegated to finding whatever information that was out there in the form of advertisements from manufacturers or on the back of the spark plug wire box. A resistor spark plug will delay the time when the spark jumps. Does size matter? There is often the option to purchase pre-terminated wires, where the wires have been cut to the proper length for your application, but if you have something custom or want a cleaner appearance than factory, building your own spark plug wires might be the way to go. Sign up for the latest automotive news and videos—in short, everything for people who love cars. Does it really matter what brand of spark plug wires you use on your car - Answered by a verified Mechanic for Honda. For overall spark transfer, not necessarily. May 25 2012, 4:15am. Does the wiring order matter? "Crossfires" from spark plug A to spark plug B. b. Diminishes spark at the time it's needed and a … I doubt anyone will even remember this discussion, ... but that's my next step to see if there's a difference other than the harness plug and the spark plug wire connections. The automobile had been around for at least 50 years when my 1930 Ford Model A was built, and guess what, it’s plug wires are just straps of metal from the distributor to the plugs. Spark plugs differ in many ways: thread diameter, reach, temperature range, and electrode design, to name just a few. The spark needs of a stock 216-cubic-inch inline-six Chevrolet are drastically different than those of a supercharged big-block Ford. The carbon burns from the ends, and when the gap gets big enough, you see the arc emerging in the surrounding space (why folk suggested looking at it in the dark). This channel is the home for all your vintage Mid-Year Corvette content. The only ones I can find are 8mm and contain silicone. We use cookies to give you the best possible experience on our website. While it sounds pretty simple, the reality is that even vintage engines are quite picky about how each of these four items is attained. Noi e i nostri partner memorizzeremo e/o accederemo ai dati sul tuo dispositivo attraverso l'uso di cookie e tecnologie simili, per mostrare annunci e contenuti personalizzati, per la misurazione di annunci e contenuti, per l'analisi dei segmenti di pubblico e per lo sviluppo dei prodotti. Hey guys and gals, welcome to my YouTube channel. That pinging noise is the radio-frequency interference from an uninsulated plug wire. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. 5. For stock applications, an OEM-spec wire might be best despite it having greater resistance than an aftermarket wire. Also, all the shielding inside a wire is not free. Does anyone know if the 8mm wires will perform as well as the 7mm wires? Often this was the spark plug wire nearest to it...which also had insulation breaking down. If the spark plug requirement concerning the voltage supplied by the ignition system exceeds its possibilities, there will not occur any spark jump across the spark gap. We’re here to help you make sense of the features and technology out there. Plug wires of larger diameter could simply have larger conductors inside the wires, but their size could also be due to other features. Yahoo fa parte del gruppo Verizon Media. WHen replacing spark plug wires the difference in length will not affect which cylinder they are on, just as long as they are routed where they will not contact the exhaust or anything that will damage the while the vehicle is running. Jump to Latest Follow ... wires 1-2 are the same length, as are 3 and 4. Spark plug wire resistance Q. Early spark plug wires were very simple—just metal that conducted. It’s not a difficult process; it just takes a bit of patience and attention to detail—like any other automotive project. Thanks in advance for your thoughts and information. Also, a marine spark plug's shell is double-dipped, zinc-chromate coated metal. There is more to consider though. What happens if it is out of … Plug wires are often advertised by the diameter of the wire, making it easy to look at the options for plug wires and immediately think if 7mm is good, 8.8mm must be great. As other answers have said, if the threaded portion is too long it can result in damage to the piston. Yes, it does matter very much. Hmmm, 5 wrong answers, until this post. Spark plug manufacturers usually spot-weld side electrodes to the plug wire, but to survive 500 miles of torture this plug has a machined one … Spark Plug Wires. Plug wires are often advertised by the diameter of the wire, making it easy to look at the options for plug wires and immediately think if 7mm is good, 8.8mm must be great. Attach the test light to a good engine ground. Taylor, Moroso and Live-Wires are the best money can buy. Stock spark plug wires are 7mm but I want to add some color to the engine bay using colored spark plug wires. A wire with high resistance can be in the 5000 ohms per foot range for especially high-output ignition systems, whereas a low resistance performance wire could easily get double digit ohms per foot. 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