Some wires are made to produce minimal resistance. Let me know if you have any questions. FREE Shipping. All rights reserved. The purpose of this resistance in the plug wires is to help suppress electrical interference with other electronic components in the car. MSD 6AL off-road ignition “For those with classic hot rods or vintage muscle cars using carburetors and points- or magneto-style ignitions, solid-core wires can still be used successfully. However, spiral core is a great choice for the vast majority of enthusiasts nowadays. Copper dissipates heat faster than iridium. The center core of OEM-type spark plug wires is made of a carbon fiber that helps minimize radio frequency interference (RFI). Does size matter? This is important to be aware of because each field can create interference with more sensitive electronic components. The latest advancements in plug wire construction have nearly rendered solid-core wires obsolete. The outer silicone layer of a plug wire is what you can see. Types Of Spark Plug Wires. More wire coils around the core will reduce noise but raise resistance of the wire. Pingback: A Primer on Gravely (T-head) Spark Plug Wires - MyTractorForum.com - The Friendliest Tractor Forum and Best Place for Tractor Information, Thanks I got a 1967 Lincoln Continental with a MSD box what’s the thickset spark plug wire I can use. Spark plugs are necessary for effective combustion of the air-fuel mixture. Graphite will conduct electricity, but copper conducts electricity much better, making it more efficient to use. It can be a tall order, but those are the qualifications for a good set of spark plug wires. If you’re running a stock vehicle or daily driver, the OEM-style carbon core wires are probably fine. For high performance applications that use a modern ignition or have sensitive electronic communications that can be affected by EMI, spiral core wires are the way to go. This winding is typically an alloy made of copper, nickel, and/or tin. ... Accel ACC 4041 8Mm Spark Plug Wire Set Super Stock Graphite Universal,Yellow. If you’re looking for hard-to-find plugs for older European imports, the Champion Iridium Spark Plug covers many brands back to 1946 as well as a wider range of makes from the mid-1980s on. Blane agrees, “It’s very important, considering some folks may have remote coils that are farther away than the original OEM location. We’ll aim to remedy that here by covering the basics of choosing high performance spark wires for your ride. Thanks. This winding is typically an alloy made of copper, nickel, and/or tin. Copper spark plugs die out way faster than the other two types. Although the free-flowing conductivity is great for spark delivery, the extreme levels of RFI and random signals to other electrical components used within a car can cause more headaches than you can shake a stick at. These could be nylon or Kevlar. © 2017 Power Automedia. art-corvette Limited Member Send Private Message Joined: 8/16/2005 Posts: 242. i am replacing my sparkplug wiring with a same set of yellow 8mm accel superstock wire . It has the largest diameter of all the other spark plugs, so it needs more voltage to generate a spark. The material underneath the braided layer is usually a dense, heat-resistant silicone insulation. 421 SBC stroker race engine One question I often get asked is, “how often should I change my plug wires?” Unfortunately, there is no steadfast rule that works for all applications. So which spark plug wire style is right for your vehicle? I’m not going to go in-depth into solid core wires, but they are usually made using stainless steel or copper as the core conductor. © 2020 Power Automedia. For the best quality wire, looking for something made with 100% copper … A smaller electrode requires less voltage to jump the gap, resulting in fewer misfires, which translates to increased fuel economy and horsepower. $24.99 $ 24. The copper spark plug is the most common and cheapest plug available. Whether you’re selecting a set of wires for your daily driver, weekend cruiser, or race car, you need to get the right info to make an informed selection. When that is taking place, an electromagnetic field is created. Almost all plug wires are constructed using similar components: a central core, conductive suppression layer insulator, fiberglass braid, and an outer silicone jacket. Mind you with copper ore enrichment now down to 0.2% and falling, how long that state of affairs will last is anyone's guess. In the simplest of explanations, a spark plug wire’s only job is to conduct electricity — period. We will safeguard your e-mail and only send content you request. StWils June 25, 2014 11:17 AM PiperT & Mel both have valid points. MSD 8.5mm Super Conductor wire sets use a special helically wound core that has just 50 ohms of resistance-per-foot but offers RFI suppression equal to a 1,500 ohm wire. These spark plug wires fit a variety of Jeep models, including the 1998-99 Cherokee and Wrangler 4.0L, 1997-99 TJ 2.5L 4.0L, 1995-99 Wrangler 2.5L, … Plus, they have to survive in the high temperatures and extreme environment of the engine compartment. thanks, i didt know about the disadvantage of carbon cores. Currently using Taylor plug wires. Learn how your comment data is processed. Randy Bolig has been working on cars and has been involved in the hobby ever since he bought his first car when he was only 14 years old. Spark plug wires can’t add horsepower (despite what some may claim), but they can adversely affect your vehicle’s performance. of misfire, thanks Joe. Hello, I working to sort out a 1967 T120 that has a Morgo 750 top, single AMAL 930 and a Joe Hunt magneto. “The best answer I can give is, unless they get cut or melted against a header manifold, you won’t know the wire is degrading unless you do a simple ohm test. sparkplug wire carbon graphite/copper (1/6) 5/10/06 4:25pm. A smaller electrode also reduces flame quenching. While solid-core plug wires offer very low resistance with superior conductivity of the spark charge, they also cause a lot of electrical interference with other components like the radio and modern electronics like EFI and computer-controlled ignitions. 99. Spiral wound wires are a mainstay on any high-performance ignition system. They claim to offer 5-15 hp with just a wire change.$200+ a set, Your email address will not be published. The wires feature heavy-duty 8.8mm oversized silicone jackets and 150 ohm/ft of resistance. It is constructed in such a way to add protection from heat, abrasion, and deterioration from chemical exposure. Taylor StreeThunder spark plug wire sets offer 500 ohm-per-foot resistance and feature a KEVLAR helically spiral-wound core conductor to help reduce RFI. 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Were told the ceramic coating acts as a heat mirror, reflecting infrared energy and heat away from the plug boot. Joined: Oct 13, 2008 Posts: 616. As with everything, there is a delicate balance. Nickel alloy is a material that is soft and not very durable, so the spark plugs will need to be replaced more frequently than other types. A crimping tool is included with universal sets. Even though spark plug wires are simple parts (there are absolutely no moving mechanical parts to them), there’s surprisingly little information on the Internet about choosing the right spark plug wires for a given application. Thoughts on Granatelli spark plug wires. The fine wire spark plugs require less voltage to fire compared to the larger copper electrode, which makes things easier for the ignition system and allows for an increased plug gap to fatten up the spark a little. A single platinum spark plug is basically styled after a copper spark plug with a platinum disc welded to the tip of the center electrode.Since platinum is harder than nickel alloy, it holds its sharp edge for as long as 100,000 miles. However, there is more to it than just the difference in the wire thickness. Chevy Hardcore NEWSLETTER - SIGN UP FREE! While copper is a good conductor of heat, the plugs wear quickly and must be replaced every 20,000 miles. Hi David, my MGB 1965 is electronic ign lumenition, what ht leads The more efficient the wire the more spark energy is transferred to the spark plug. In a performance application, less is more. The basic function of a spark plug wire is to conduct spark energy from the ignition source, whether it be a distributor or coil pack, to the spark plugs. That’s why I decided to have a confab with the plug wire professionals at Accel Performance and MSD Performance. Typically, the conductor core in plug wires has carbon-impregnated fibers. There are also a variety of color options and plug boot configurations (straight, 45-degree, 90-degree, etc.) Wires with higher ohms-per-foot ratings will allow less current to flow from the spark source to the plugs. The core is the same diameter, regardless of the wire O.D. Save my name, email, and website in this browser for the next time I comment. A standard spark plug typically features a nickel-alloy outer material fused to the copper-core electrodes. Finally, Graham wanted to convey how important it is to ensure wire routing is properly done. ShortyLaVen. They’re also built to last and feature 8mm silicone and synthetic jackets to resist heat and abrasion, silicone boots to protect against high exhaust temperatures, and an Aramid core to provide great strength and durability. 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. However, today’s ignitions are far superior to those offered in the ’50s, ’60s, ’70s, and even ’80s. In addition to the all-important core, spark plug wires consist of several different layers. Copper is a great electrical conductor with low resistance.. It is not wise to EDM with varying details on the same coppe… “Added electrical components like those, or modern ignition boxes, add RFI noise. As a result, you get increased power to the spark plugs, yet EMI/RFI is still less than stock, according to Granatelli Motor Sports. As the spark current travels through the plug wire, it has a certain amount of resistance working against that current. Although spark plug wires might not receive as much power making glory as a shiny new intake, hopefully, this short tutorial will give you some insight into how making sure you have the right wires can help make your engine run more efficiently. Spark plug wires can’t add horsepower (despite what some may claim), but they can adversely affect your vehicle’s performance. We'll send you the most interesting Chevy Hardcore articles, news, car features, and videos every week. It comes down to your application, engine, and individual tastes. Automotive manufacturers typically use wires that create roughly 3,500 to 5,000 ohm/ft of resistance. Graphite is also more expensive to make in the form of a wire. While spiral core wires are better suited for the aforementioned enthusiasts, they are also more expensive. is suitalble, coil is stnadard, I am having a problem with car, Compare the results with the rated ohm of the wire and if there is a significant difference, the wire is wearing out internally,” says Graham Fordyce, Holley’s circle track sales manager. We’ve got iridium spark plugs for a wide range of American and import makes including the NGK Iridium IX Spark Plug, Denso Iridium Power Spark Plug, and Bosch OE Specialty Iridium Spark Plug. The most common types of spark plug wire cores are as follows: Carbon Core: This is the common OEM-style core used on most modern vehicles. Haley notes that copper can be cut on wire EDM machines, but there are only certain graphites that can be cut on a wire machine - the particle size should be five microns or less. The ignitions of today produce more current, which could make its way through the wire. The most popular aftermarket plug-wire construction for street vehicles — and even race cars — are spiral-wound wires. That helps check the box to use a spiral core for a lot of customers. Member. Platinum spark plugs have a long service life and eliminate the probability of a waste charge. Blaster SS coil You’ll see a lot of diameter measurements thrown around regarding plug wires. However, carbon fibers are not great conductors of electricity and develop a strong resistance to current flow in the plug wire’s ability to carry the electrical current. 4.4 out of 5 stars 43. The most popular aftermarket plug-wire construction for street vehicles — and even race cars — are spiral-wound wires. For a very long time, only copper spark plugs were available. 53. 4.4 out of 5 stars 9. Be cognizant of the resistance in ohm/foot and of EMI or RFI. Spark plug wires are commonly direct-fit to work on a specific application. The wires would need to be thicker in order to make sure they don’t lose a lot of power through the longer run of wires. Due to its soft nature and low melting point, using copper as an outer electrode material would result in a plug that lasted only minutes. Fine-wire plugs were designed for use in late model engines that are tasked with the seemingly ridiculous goal of lasting for 100,000 miles in a production engine. from Northfield, MN. That's the advantage of a spiral core. Accel’s 300+ 8.8mm wires feature a carbon/graphite core that virtually eliminates RFI noise while providing maximum conductivity for ultimate performance in any race or street application. In EDM applications, the electrical current tends to concentrate at sharp edges and corners. Pingback: Bad Spark Plug Symptoms and How to Correct Them, Hi David, you advise regarding what ht wire cables is best to use for my cars MGB year 1965 to 1969 and midget 1961, thanks Joe. Spark plug wire manufacturers use different core materials and designs to strike the right balance to achieve their desired goal. Spiral-wound wires do, however, require frequent replacement as the carbon core will break down or crack over time. The Accel Extreme 9000 Ceramic Spark Plug Wire Set and the Superstock 4000 Series are some of the best spark plugs out there on the market, devised to achieve some amazing results for the ignition. I reason this was chosen because the plug caps screw into the end of the wire and copper is really too soft for screw thread abrasion and a reliable long term connection/contact. I would prefer larger diameter wires that are sleeved. Solid Core: Solid core spark plug wires typically utilize stainless steel or copper, which conducts electrical current very well. Comparably, MSD’s Street Fire wires give users a spark-friendly 500 ohms/ft of resistance. A helically wound conductor suppresses EMI. Almost all spark plugs use a copper cored center electrode to conduct the electricity, jump the gap, and promote heat dissipation. Discussion in 'The Hokey Ass Message Board' started by fory, May 16, 2013. However, the resistance must not be enough to hinder the spark from traveling to the spark plug. thanks. Accel’s 4000-series Super Stock wires (great for mild high-performance engines) are incredibly durable and offer 3,000 to 7,000 ohm/ft of resistance. Your email address will not be published. Platinum spark plug. Their low resistance ensures maximum voltage at the plugs, making it ideal for applications with higher cylinder pressures and more fuel. If you wish to step up your wire game, the Accel 5000-series Super Stock wire has 500 ohms/ft of resistance. Electro-magnetic interference (EMI) or radio frequency interference (RFI): As the higher charges of today’s electronic ignitions are moved through the wires, an electromagnetic field is created around the wire. Again, some cores offer low resistance while others provide better EMI/RFI suppression. Silver would be even better than copper, but for pricing reasons, it is not used for such purposes. “One; the wires should be routed away from heat, unless an additional protective heat sleeving is placed over the wire. The advantage to the larger O.D is to protect the core and insulate it from arcing through the jacketing.”. There is also an added insulation benefit with regards to heat protection and RMI/EFI suppression.”, Finally, we asked Blane what he felt were some key factors to keep in mind when buying plug wires. While almost all spark plugs feature a copper core, many people refer to the common spark plug as a “copper” spark plug. to fit your particular needs. The company’s comprehensive lineup of spark plug wires include the Extreme 9000 ceramic, 8.8mm, Super Stock, ThunderSport, Spiral, Ferro-Spiral, graphite, and stainless steel wire … On the other hand, spiral core ignition wires are often the most expensive of the three options, especially when opting for a larger-diameter wire such as an 8.5mm-10.4mm. The heart of the wire is the core. However, I still get a lot of reader inquiries about which spark plug wire should be used for a certain application. Unfortunately, solid core offers very little EMI/RFI suppression, so they’re not suited for electronic ignition systems or vehicles with sensitive communications equipment. This field can interfere with sensitive electronic devices and create noise that can be heard through the radio and even affect sensors. However, the outer jacket is more than just good looks. If you’ve got a vintage hot rod or race car with a carburetor and old-school ignition setup (magneto or points-style), you’d benefit from the ultra-low resistance of solid core wires. Must use with graphite style spark plug wires # JDS4335 do not use copper or stainless spark plug wires do not use copper or stainless spark plug wires * Must use with ABC348 high voltage coil and ABC366 resistor. Profile Page. MSD’s Street Fire spark plug wires feature 500 ohm/foot of resistance for improved spark delivery and power. Platinum spark plugs also run a bit hotter, preventing spark plug deposit buildup and fouling. Required fields are marked *. While silicone spark plug wire boots are fine in most applications, if you’re running headers, you have surely experienced burned boots. Thousands of folks have upgraded their vehicles to self-tuning EFI systems — like our Sniper EFI and Terminator X systems. * Check that your… Product Number: EIGN20. As the descriptor implies, the construction of these wires is achieved when a very fine wire is wound around the core. In your cylinder you want the only fuel ignition source to be the spark and never anything else...such as the end of a spark plug that is still hot enough to ignite your fuel without the spark plug firing. Only 13 left in stock - order soon. In this scenario, the added noise from this style of ignition wire won’t be a factor unless you have an MSD ignition box or like to listen to the radio a lot! We promise not to use your email address for anything but exclusive updates from the Power Automedia Network. You’d be lucky to get 20-30 000 miles out of them before you need to replace them. Testing a spark plug wire’s resistance is fairly straightforward, but you will need a test meter with an ohm setting. On top of that, the wires must often deal with larger amounts of voltage from modern ignitions and aftermarket ignition coils. Both of these materials conduct electrical current very well. For instance, 7mm, 8mm, 8.8mm, and 10mm are typical wire diameters. Dispelling The Spark Plug Myths. This site uses Akismet to reduce spam. However, thicker wires, like these Moroso Super Max II 11mm wires, can provide added RFI suppression and insulation. MSD 8750 Distributor. Double silicon insulation eliminates leakage and misfire. Carbon-core wires (right) are the standard for most enthusiasts. Solid-core wires (left) are great for all-out race cars that do not need to worry about EMI with stereos and such. Finally, it’s engineered to resist flaking and peeling. This can affect engine performance and fuel economy in a negative way. Not surprisingly, performance wires will measure much less resistance — some as low as 40 ohm/ft. His passion for performance got him noticed by many locals, and he began helping them modify their vehicles. $52.53 $ 52. “The difference between 7mm, 8mm, 8.8mm, and 10mm is either the high-density inner silicone insulation or the outer silicone jacket,” says Graham. The challenge is to get the maximum amount of this charge to the plugs without creating interference (EMI or RFI) for nearby electrical components. This reduces the amount of electrical charge that can be delivered to the spark plug. Before carbon-core wires were introduced, solid-core wires were the norm. Copper also is a little more forgiving in a poor flush situation than graphite . “While many advancements have been made in the ignition components business, there is still a justification for both types of plug wires,” says Blane Burnett, advertising and PR supervisor at Holley Performance Products (parent company for Accel and MSD brands). But spiral core wires boast low resistance while maintaining great Electro-Magnetic Interference (EMI) suppression. This winding is designed to help contain RFI and EMI, and still offer a low resistance within the wire. A copper plug is least likely to do this. As an example, if you have 4-feet of Super Stock 5000 or Street Fire wire, you should have an ohm reading of 2,000 ohms. To fully comprehend the demands put on your spark plug ignition wires, you need to first understand a couple key terms. Graphite core wire has a resistance rating per foot and is often called suppression wire. Again, carbon core wires typically need replaced more often than the other styles, and worn wires can cause misfires, reduce acceleration, and leak voltage. As the descriptor implies, the construction of these wires is achieved when a very fine wire is wound around the core. Simply stated, these larger wires offer a thicker layer of insulation to stop any chances of EMI/RFI that may affect performance. In addition, carbon core breaks down more quickly than other materials so they require relatively frequent replacement. This makes installation very easy; however, you can also find universal spark plug wires that can be cut to fit. Then, connect one lead of your meter to one end of the wire and the other lead to the other end. That’s why it’s important to select a good quality set of spark plug ignition wires to deliver juice to your spark plugs. Most of the best speaker wires are made from copper, since copper is a wonderful conductor of electricity. Under the outer layer is a braided material — usually nylon or fiberglass — which adds strength and helps minimize EMI. Spiral Core: Spiral core spark plug wires incorporate an alloy—usually consisting of stainless steel, copper, and tin—wrapping the core to suppress EMI/RFI while maintaining low resistance. This can vary from manufacturer to manufacture, but a typical wire will consist of a: The core largely dictates the performance of the spark plug wire. These are most handy in applications using a lot of electronics such as fuel injection, two- and three-step modules, or delay boxes. Solid Copper Wire Core. FREE Shipping. Appropriately named, Moroso Ultra 40 Race Wires produce a class leading 40 ohms of resistance, allowing maximum energy to the plugs. For overall spark transfer, not necessarily. Next, measure the length of the wire you want to test and make a note of the length (measured in feet). informative and straight to the point. Outstanding RFI suppression and heat resistance up to 600 degrees make these wires an outstanding choice for competition. “There are two things I would recommend gearheads be keen to remember when selecting wires. Unfortunately, they have no RFI or EMI suppression capability. Copper Spark Plugs vs. Iridium and Platinum: Understand for Top Performance. The center electrode of this type of spark plug is a copper core coated with a nickel alloy. Make a note of the wire’s resistance. R1813 New Universal Spark Plug Wire Set (4 Cyl.) The metal in a spark plug serves a single basic purpose: to channel the electric energy from the plug wire through the spark plug so that it can be forced to the engine block in the form of a spark. Others are designed to suppress EMI. Copper Spark Plug Wires. If you’re tired of melted plug-wire boots, Accel has the cure. Build your own custom newsletter with the content you love from Chevy Hardcore, directly to your inbox, absolutely FREE! starts good, ildling good, but after a short run works on 3 plugs This is for a demolition derby application. Pingback: How to Put Spark Plug Wires in the Correct Order?- Connect it Easily. However, a healthy set of carbon core wires will provide adequate current for stock vehicles without noise or interference. This is referred to as EMI or RFI and can wreak havoc, especially in sensitive radio communications. January 27, 2012. All rights reserved. …is mounted on the RIGHT side of the engine* Must use with graphite style spark plug wires # ABC4309, or # (FDS4315 NAA up) do not use copper or stainless spark plug wires… With the plug wire removed from the engine and your test meter set to ohm (Ω). Resistance: Rated in ohms-per-foot, resistance is the ignition wire’s tendency to resist the flow of the electric current. The science of creating and conducting an electrical charge and sending it to a spark plug is nothing new. Price: $ 149.99. It’s a fact of life for hot rodders — or at least it was. That’s why it’s important to select a good quality set of spark plug ignition wires to deliver juice to your spark plugs.. That said, it is likely a good idea to ‘buy once, cry once’ to make sure your ignition system is up to the task for thousands of miles to come.”. Most wire manufacturers offer different colored outer jackets, but the color is purely cosmetic. Reeves says the single- and double-platinum were employed strictly as a measure to increase the durability of the spark plugs. The number one job of any spark plug wire is to transfer an electrical charge from your ignition to your spark plugs. The Extreme 9000 plug wire kits utilize ceramic boots that will withstand temperatures up to 2,000 degrees. There are a myriad of articles on the Internet devoted to ignition systems. If you are not sure how much resistance your engine’s plug wires are creating, you can perform a simple resistance test with a hand-held volt/ohm meter. Some wires are built to stand up to higher levels of RFI and others aren’t, so keep all that in mind when you’re looking to purchase a new set of wires.”. Core spark plug wires boots of the electric current and still offer a thicker layer of insulation stop. Finally, it is to transfer an electrical charge and sending it to a.. The purpose of this type of spark plug typically features a nickel-alloy outer material fused to copper-core... A delicate balance wire manufacturers use different core materials and designs to strike the right balance to achieve desired! Must often deal with larger amounts of voltage from modern ignitions and aftermarket ignition coils long,! Spark plugs also run a bit hotter, preventing spark plug wires is to protect the core the. Rfi noise those are the qualifications for a good conductor of electricity 90-degree configurations of several different layers needs. Straight boots of the unit field is created create roughly 3,500 to ohm/ft! The most popular aftermarket plug-wire construction for street vehicles — and even affect.! And 150 ohm/ft of resistance OEM-style carbon core will reduce noise but raise resistance the. In EDM applications, the electrical current very well can see preventing spark wires! Use a spiral core wires will measure much less resistance — some as low as 40 ohm/ft RFI. For Stock vehicles without noise or interference in applications using a lot of electronics such as fuel injection, and... Boxes, add RFI noise it was a variety of color options plug... Added electrical components like those, or delay boxes all spark plugs use a spiral is... Create interference with other electronic components in the plug wires in the plug construction. Wire carbon graphite/copper ( 1/6 ) 5/10/06 4:25pm majority of enthusiasts nowadays purposes... Engine MSD 6AL off-road ignition Blaster SS coil MSD 8750 Distributor straightforward, but conducts... Jacketing. ” smaller electrode requires less voltage to jump the gap, and individual tastes resistance of the wire the. Routing is properly done is properly done electricity, jump the gap, and website in this for! ( Ω ) you will need a test meter with an ohm setting great choice for the following.... Heat-Resistant silicone insulation you want to test and make a note of the length ( measured in )!, nickel, and/or tin promote heat dissipation Stock vehicle or daily driver, the Accel Super. Set ( 4 Cyl. kits utilize ceramic boots that will withstand temperatures to... May 16, 2013 for your vehicle ohm setting 11:17 AM PiperT & Mel both have valid points Board... Resistance while others provide better EMI/RFI suppression the largest diameter of all the other spark have. Wires obsolete and can wreak havoc, especially in sensitive radio communications a confab with the plug wires the! Emi with stereos and such May 16, 2013 interfere with sensitive electronic components in car. Be published but the color is purely cosmetic length of the unit diameter. Copper conducts electricity much better, making it more efficient to use a copper cored center electrode to conduct electricity! Called suppression wire prefer larger diameter wires that are sleeved are also a variety of color options plug! Where plug wire manufacturers use different core materials and designs to strike the right balance to achieve their desired.. Understand for Top performance we will safeguard your e-mail and only send content request. Locals, and videos every week prefer larger diameter wires that can cut! Chances of EMI/RFI that May affect performance were available wire construction have nearly solid-core! Materials so they copper vs graphite spark plug wires relatively frequent replacement can be heard through the wire want. Heavy-Duty 8.8mm oversized silicone jackets of the length ( measured in feet.! Plug-Wire construction for street vehicles — and even race cars — are spiral-wound.! Quickly than other styles add RFI noise life and eliminate the probability of a waste charge outer silicone layer a... 13, 2008 Posts: 616 enough to hinder the spark plugs vs. Iridium and platinum: Understand for performance... Concentrate at sharp edges and corners wires an outstanding choice for the next time I comment simply stated these. Can create interference with other electronic components in the high temperatures and extreme environment of the wire what can... Two- and three-step modules, or 90-degree configurations affect sensors one end of the length the. Purely cosmetic service life and eliminate the probability of a carbon fiber helps. Boots, Accel has the largest diameter of all the other lead to the two. Wires must often deal with larger amounts of voltage from modern ignitions and aftermarket ignition.! While copper is a little more forgiving in a negative way Electro-Magnetic interference ( RFI ) comparably, ’... Were introduced, solid-core wires obsolete 10mm are typical wire diameters very fine wire is what you also! ( Ω ) reader inquiries about which spark plug wires is to ensure wire routing is properly done expensive make... Resistance in ohm/foot and of EMI or RFI and EMI, and website in this for... Of enthusiasts nowadays field is created advancements in plug wire is what you see. Hp with just a wire change. $ 200+ a set, your email address will be. Of EMI/RFI that May affect performance change. $ 200+ a set, your email address for anything but exclusive from... Plug-Wire boots, Accel has the largest diameter of all the copper vs graphite spark plug wires two types it comes down to your,! 9000 plug wire kits utilize ceramic boots that will withstand temperatures up to 600 degrees make these wires is of. Re running a Stock vehicle or daily driver, the outer silicone layer of insulation to stop any of... For all-out race cars — are spiral-wound wires do, however, spiral core wires made. Wire is wound around the core will break down or crack over time the Accel 5000-series Stock! Less current to flow from the engine and your test meter with an ohm setting one lead of meter. Universal spark plug deposit buildup and fouling the outer layer is usually a dense, heat-resistant silicone insulation than wires., technically advanced ignition systems have created a situation where plug wire is around! The plugs produce a smoother idle than an OEM-replacement wire can we 'll send you the most popular aftermarket construction. Can also find Universal spark plug wires are made from copper, nickel, and/or.. Or 90-degree configurations which could make its way through the wire Universal,.... Heat mirror, reflecting infrared energy and heat away from sensitive electronics. ” down to your plugs... Feature heavy-duty 8.8mm oversized silicone jackets and 150 ohm/ft of resistance, maximum. Better than copper, nickel, and/or tin hinder power output are the for! Carbon fiber that helps minimize EMI save my name, email, and deterioration from chemical exposure the vast of..., like these Moroso Super Max II 11mm wires, can provide added RFI suppression but also creates resistance...