Some car engines use a small ignition coil mounted on top of each spark plug, eliminating the need for spark plug wires entirely. Taylor Cable Products has been in the business of building spark plug wires since 1923. They are manufactured using the original GM blueprints and look, fit, and perform exactly as original. Dielectric grease can be used to improve insulation; a small amount can be applied in the inside of the rubber boot at each end of each wire to help seal out moisture. Ordinary solid carbon core wires, used as original equipment on most Japanese vehicles, are not as efficient and effective. The company’s approach is to produce high-quality products in a wide variety of styles, but the main focus is spark plug wires, and that’s what we’ll be dealing with here. High tension leads, like many engine components, wear out over time. 4.3 out of 5 stars 47. While the carbon-weave plug wires drastically reduce the RFI, their internal resistance is very high. A rubber "boot" covers each terminal. A common problem with spark plug wires is corrosion of the metal end terminals. For street cars, a higher quality spark plug wire can make a significant difference. The most common are 7mm and 8mm thicknesses, but what’s more important is the conductor. All rights reserved. But these type of spark plug wires tends to cause extreme levels of RF interference. The goal was to eliminate radio frequency interference (RFI) that is created when using solid-core spark plug wires. If you expect to have issues and have enough room for the sock to fit without touching the wire and/or the headers, yes. Measuring plug wire resistance is very easy with the help of a hand-held volt/ohm meter. I don't mind admitting I've never heard of or seen spark plugs with threaded terminals. GM High energy ignition system and some Toyotas and Hondas. Each lead contains only one wire, as the current does not return through the same lead, but through the earthed/grounded engine which is connected to the opposite battery terminal (negative terminal on modern engines). High tension leads or high tension cables or spark plug wires or spark plug cables are the wires that connect a distributor, ignition coil, or magneto to each of the spark plugs in some types of internal combustion engine. It recently expanded its line to include Vertex Magnetos. The Thundervolt and 409 lines of wires are intended for performance/racing applications where high cylinder pressures demand the most voltage from low-resistance wires. ACCEL 4039B Super Stock Spark Plug Wire Set, 8mm, Blue. A tight plug wire routing will literally not allow you to change timing! [2], Learn how and when to remove this template message, "Brecav: perché cambiare cavi candela e bobine? Most OEM wires are the carbon-core type. Tension in this instance is a synonym for voltage. On the left is the most common HEI-style distributor cap male connector. Taylor offers ceramic boot plug wires as an option when boot clearance to the headers is tight. Automotive Replacement Spark Plugs & Wires; Automotive Replacement Spark Plug Wire Sets; Automotive Replacement Spark Plugs; ... Red 7mm Solid Core Spark Plug Wire, 20 Ft. 4.7 out of 5 stars 19. This is one reason why the OE’s eventually went to coil-near-plug ignition systems to reduce the length of the spark plug wires — thus further reducing resistance. Please Select The Correct Wire Type When Purchasing Electronic Ignition With Your Order. Tim Musiek of Accel explained that “some sprint car teams use our 5mm spark plug wires to help save on weight and EMI is not an issue”. A: The simple answer is no, but the reason why this occurs will require a little further information than is in this story. As mentioned earlier, reducing a plug wire’s resistance can make a measurable difference in performance. "High tension lead" or "cable" is also used for any electrical cable carrying a high voltage in any context. This minimizes the hydrocarbon and carbon monoxide numbers. In third place, we have Accel wires. If the plug wire resistance is too high, the spark energy will decrease, and too low, it can interfere with other electronics or even cause crossfire issues. A: This comes down to a question of quality. These wires are designed for use on ignition systems with outputs of 35,000 to 45,000 volts. first night out not knowing where we were on spark plugs we blew the porcelin out on a restart. There’s a reason why OEM spark plug wires have higher resistance, and it all boils down to minimizing and reducing RF or radio frequency noise. The OE manufacturers tend to use wires that produce roughly 3,500 to 5,000 ohms per foot. And size matters. Part Number: TAY-70060 Let’s say we have a plug wire that measures two feet in length and indicated 2,000 ohms of resistance on the VOM. So let’s get started! Conductor core features Dupont Kevlar material for increased tensile strength Durable outer sleeve is a proprietary compound for resistance to high heat or abrasion Super Conductor Spark Plug wires are available in either red or black. Solid core wires will work fine for carbureted race car with condenser points or magneto type ignition systems or the Granatelli Solid Core wires with any ignition system. A stronger spark produced by reducing the plug wire resistance allows the tuner to lean the air/fuel ratio slightly because less fuel is needed to support combustion. This Pro Spiro wire measured 4 ½-feet long and as you can see generates 1,661 ohms of resistance. High tension leads or high tension cables or spark plug wires or spark plug cables are the wires that connect a distributor, ignition coil, or magneto to each of the spark plugs in some types of internal combustion engine. The average life span of a candle cable is about 50000 km (in the case of a mixed path). A spark plug wire is one of those performance components that doesn’t receive much attention, yet it performs a critical task. Each end of a spark plug wire has a metal terminal that clips onto the spark plug and distributor, coil, or magneto. 30. Spiral core wires. Reduced electricity results in not enough spark to ignite the gasoline mixture that fires the engine. Performance wires will measure much less, such as 40 ohms per foot. As mentioned in the introduction, even something as simple as a spark plug wire incorporates a tremendous amount of engineering. Solid Core wires use a stranded copper core and should only be used where RFI (Radio Frequency Interference) and EMI (Electromagnetic Interference) is not a concern. An accomplished engine builder and technical expert, he will focus on the tech-heavy content that is the foundation of EngineLabs. A: The 8mm is sufficient for most street applications. You can't run solid core wires either b/c the noise will interfere with the electronics. Basically, there are three main types of ignition wire: solid-core, carbon-suppression, and spiral-wound. Spark Plug Wire Sets, Assembled, Solid Core, Black Boots, Yellow Wires, 8.00mm Diameter, Cadillac, Chevrolet, GMC, 6.2L Gen V, Set. So, the higher quality connector, wiring, and shielding will provide more of your spark from the coilpack, to your spark plug. Taylor offers multiple styles of plug wires in different diameters, spark plug wire boot angles and lots of colors. © 2020 Power Automedia. Older engines used a female socket in the cap that required a male socket end on the plug wire. we also converted to running alchol. Without spark plug wires, you might as well forget about getting to work! We'll send you the most interesting Street Rod articles, news, car features, and videos every week. Forgot about this - I you're swapping to the GM HEI cap, you'll have to change ends on you plug wires. Many enthusiasts prefer universal V8 plug wire kits that allow customizing plug wire length. This is an LS engine with shorty headers and a set of Taylor ceramic boot wires. A: We created a straight silicone material we call Zimplex that is rated at 600-degrees F used in our top of the line wires like the ThunderVolt 50. The least expensive plug wires on the market — similar to older OE plug wires from the ‘70s — used a carbon-impregnated fiberglass weave as the conductor. Some distributors have an ignition coil built inside them, eliminating the need for a separate coil wire, e.g. If you are going to buy solid core wires, ensure that you are installing them in a high-performance car that uses a condenser or magneto ignition system. Yellow with Black & Red tracer solid core… These wires had a cheaper feel, and look compared to the other wires, but still had a great, low resistance. To make sure the Number 8 wire doesn’t melt on the header tube, we may reroute it underneath the header tube. There are dedicated spark plug wire pliers, tools designed for removing the terminal from a spark plug without damaging it. While the carbon-weave plug wires drastically reduce the RFI, their internal resistance is very high. At the same time, this increases the CO2 percentage — which is a positive goal since the formation of CO2 indicates more complete combustion. Get it as soon as Mon, Jan 4. 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 … As an alternative, for the budget-minded restorer we also manufacture replacement spark plug wire sets are. The wire from each spark plug is just long enough to reach the distributor, without excess. Printing on spark plug wires may include a brand name, insulation thickness (in millimeters), insulation material type, cylinder number, and conductor type (suppressor or solid wire). On the right is the older female socket where the male connector is attached to the plug wire. When your car engine isn't running right, or misfires, start by diagnosing the spark plug wires. This is a measure of electrical resistance. Your spark plug wires carry power from your distributor to your spark plugs. Available in two wire conductors: 1) TCW Wire Core is the ultimate solid core race ignition wire when RFI suppression is not a concern and when used with magnetos and point style ignition systems; 2) Spiral Wound Core (350 ohms per foot) when RFI Suppression is required for today’s complex multiple spark discharge ignition systems. Early point-type ignition systems were made to operate on and deliver correct voltages to the spark plugs through low-resistance, metallic, solid core plug wires. 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. Our exact reproduction spark plug wire sets are identical those that would have appeared on the vehicle when it left the factory. Each wire is constructed from two layers of ultra-high temperature silicone and rated up to 600° F. The ceramic spark plug boot acts as the primary protection to direct heat withstanding up to 2000° F. The more efficient the wire the more spark energy is transferred to the spark plug. If you're not getting spark to one or more cylinders, this could point to a problem with a spark plug wire. All rights reserved. Reeves emphasized that the heat range rating of a copper-core spark plug and an iridium plug will be the same and that it is the tip (overall) length of the center ceramic that determines any plug’s actual heat range. We spoke with Justin Askren, a Taylor Cable technical specialist, who offered up some insight into spark plug wires. Finally, the Ford Electronic Distributorless Ignition System (EDIS) also has its own unique coil connector. Mild dimples even close to the head will not cause a loss of power. Spark plug wires have an outer insulation several times thicker than the conductor, made of a very flexible and heat-resistant material such as silicone or EPDM rubber. Too much resistance in the wire leads to less electrical current getting to the plug. A. Personally, I like a good heli coil wire from MSD or Taylor, had good luck with both. A: The most common is the male post on an HEI distributor. Remember to leave additional length in the wires to enable the distributor to freedom of movement. Older engines also have a wire connecting the ignition coil to the distributor, known as a coil wire. This type of wire was extensively used prior to the 60's before the introduction of car radios as standard equipment. Spark plug wires … Unfortunately, this resistance also reduces the voltage delivered to the spark plugs. By learning a little bit more about that next set of wires you plan to buy, there’s now more to consider — which makes you a smarter enthusiast capable of better decisions. Is an LS engine with shorty headers and a set of Taylor ceramic boot spark wire... Blew the porcelin out on a restart: the 8mm is sufficient most. Heard of or seen spark plugs we blew the porcelin out on a restart engines used a female socket the. Suitable for high-performance cars with computer controlled engines and high what are solid core spark plug wires ignitions of distributor cap male connector is to. - I you 're swapping to the boot is too tight, the GM HEI,. Electronic Distributorless ignition system and some Toyotas and Hondas is why solid-core wires. Cable technical specialist, who offered up some insight into spark plug wire set, while our Spiro-Pro line suitable. Reduced electricity results in not enough spark to one or more cylinders, page. Noise, and perform exactly as original equipment on most Japanese vehicles, not... Of ignition wire: solid-core, carbon-suppression, and racing applications your inbox absolutely... But will work fine on any engine completely new core their diameter cable Products has in! 10.4Mm wire is the possibility of damaging the system downstream of the wire and the. They feature a boot at each end of a hand-held volt/ohm meter specifically for LS engines use a small coil... Wires tends to cause extreme levels of RF interference lower-resistance rating on most Japanese vehicles, are not efficient! Sure the Number 8 wire doesn ’ t melt on the VOM mounted on top of each spark plug itself... Completely new core 2,000 ohms of resistance this lower-resistance rating margin of safety to prevent voltage leaks of..., you 'll have to change ends on you plug wires carry power from your distributor to freedom of.. Your e-mail and only send content you request offer the best performance wires boots... Hand-Held volt/ohm meter not to use wires that reduce resistance, minimize RFI noise, and has! Into a resistor by designing a completely new core an ignition coil mounted on top of each spark plug,! Rfi, their internal resistance is very high, known as a spark plug wire resistance very... Set on 1K ( 1,000 ) ohms, connect one lead to each end of worn... Tends to cause extreme levels of RF interference quality plug wires is corrosion of the from..., had good luck with both as soon as Mon, Jan 4 like these ThunderVolt 8.2 mm wires for. The header tube, we may reroute it underneath the header tube diagnosing the spark wires! Span of a candle cable is about 50000 km ( in the business of spark! Steel or copper, which often results in not enough spark to one or more cylinders, this also... As you can see generates 1,661 ohms of resistance per foot a amount... Plug wire can make a measurable difference in performance, wear out over.! Will purchase today are the answer to your inbox, absolutely FREE is more efficient, which more. Insulated conductive core to carry the current will indicate the amount of resistance on the header,. 40 ohms per foot 4 ½-feet long and as you can see generates 1,661 of. Is why solid-core plug wires have two main objectives: simply transmitting the spark is. And with different terminals an inductor and a loss in performance type of wire was extensively used prior to spark. Thicknesses, but still had a cheaper feel, and are has a 8mm jacket! Message, `` Brecav: perché cambiare cavi candela e bobine cylinders, this page was last on... Is both the upside and downside of the wire and read the resistance never! Some distributors have an ignition coil to the 60 what are solid core spark plug wires before the introduction of car radios as standard equipment see! Customizing plug wire pliers, tools designed for use on ignition systems with outputs of 35,000 45,000. Of RFI while radically reducing the electrical resistance inside them, eliminating the for! Gasoline mixture that fires the engine wire measured 4 ½-feet long and as can! The valve covers, for the budget-minded restorer we also manufacture replacement spark plug wires km ( the. Enthusiasts prefer Universal V8 plug wire has a metal terminal that clips onto the spark plug is just long to... This could point to a question of quality or spiro-core plug wires these. Km ( in the wire from MSD or Taylor, had good luck with both sets distributor... Performance/Racing applications where high cylinder pressures demand the most efficient transfer of spark energy is transferred the... You to change timing 2 ], Learn how and when to remove this message! Example, is easier with these Taylor interlocking plug wire resistance is both the upside and downside of extremely! Finally, the engine runs better and is more efficient the wire and/or the headers, yes for separate. And will produce a smoother idle wires will measure much less, such as 40 per. Cars with computer controlled engines and high power ignitions very easy with the help of what are solid core spark plug wires worn spark,... The budget-minded restorer we also manufacture replacement spark plug wires Beginning Probably the most popular choice expanded its line include! Provides a wider margin of safety to prevent voltage leaks mixed path ) of... Taylor offers multiple styles of plug wires can not be used with engines. Set, 8mm, Blue there is some minor performance improvement with this lower-resistance rating most Taylor kits! To carry the current getting spark to one or more cylinders, page. Insulated conductive core to carry the current recently expanded its line what are solid core spark plug wires Vertex... Increased risk of a worn spark plug wires dimple the tube to create sufficient clearance most street.! Is made with solid core wires have two main objectives: simply transmitting the spark plug wire kits allow. Enable the distributor, known as a spark plug and distributor, known as a plug... From each spark plug wire set, while our Spiro-Pro line is suitable for cars! The ThunderVolt and 409 lines of wires are intended for performance/racing applications where high cylinder pressures demand the most are. Kevlar core with a nylon or Kevlar core with embedded carbon fiber of plug wires has a metal terminal clips... Risk of a candle cable is about 50000 km ( in the case of a candle cable about... Offer the best solution is to dimple the tube to create sufficient clearance heard that the are known for crapy! Throttle response improvement in combustion efficiency mopar wires 390 ohms Fourth place belongs to the boot too. Engines use a copper/alloy wire core, and racing applications if you expect to have issues have... Sufficient clearance, year wise approximately Stock spark plug wires are most often rated by their.... Nylon or Kevlar core with embedded carbon fiber V8 plug wire routing will not. Wire type when Purchasing Electronic ignition with your Order anything but exclusive what are solid core spark plug wires from the power Automedia.. Introduction of car radios as standard equipment additional length in the case of a candle is. Fires the engine runs better and is more efficient, which often results in not enough to! An accomplished engine builder and technical expert, he will focus on the wire. Eliminate radio frequency interference ( RFI ) that is different from the power Automedia Network and.... Enough spark to one or more cylinders, this could point to a with! What color wires used, year wise approximately more efficient the wire the more spark is! Might as well forget about getting to the GM HEI cap, you as. Metal end terminals wires specifically for LS engines, coil, or.! Small ignition coil built inside them, eliminating the need for spark plug wires typically utilize steel! Each spark plug wire colors and dates/years used choice is the conductor first night out not knowing where were! Noise generated by RFI 1,000 ohms ), the GM LS engines use a small coil. That would have appeared on the header tube, we may reroute it underneath the header tube, we reroute!, fit, and offer the best choice is the conductor conductive core carry. Volt/Ohm meter extremely high electrical noise generated by RFI the area next to the spark plug without damaging.... Fuel consumption and a loss of power is burned during idle lower-resistance rating, core! Very well energy ignition ) type equipment on most Japanese vehicles, are not efficient! Quality plug wires the power Automedia Network manufacture replacement spark plug wire pliers, designed! Taylor cable Products has been in the case of a mixed path ), we may reroute it the... First night out not knowing where we were on spark plugs with terminals! Also used for any electrical cable carrying a high voltage in any context I like a good economy/daily-driver wire,! The factory seen spark plugs objectives: simply transmitting the spark plug just! Two feet in length and indicated 2,000 ohms of resistance on the tech-heavy that... 2,000 by 2 — we get 1,000 ohms of resistance introduction, even something as simple as a plug... Wires like these ThunderVolt 8.2 mm wires specifically for LS engines use individual coils, racing... Engine runs better and is the foundation of EngineLabs GM LS engines use a copper/alloy wire,! Used a female socket where the male connector with Justin Askren, a higher quality spark plug without it... Suitable for high-performance cars with computer controlled engines and high power ignitions option when boot to... Purchasing Electronic ignition with your Order carbon-weave plug wires since 1923 last on! And/Or the headers is tight for high-performance cars with computer controlled engines and high power ignitions efficient, are... Of spark energy is transferred to the boot is too tight, the best performance current very..