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Learning about the Value of a Tuned Ignition System

“Most often,” states Jamie Hanson, the other half of this two-brother team, “when a bike comes in spitting and coughing with an ignition problem, a coil might be shot, a plug fouled, or, and this happens a lot, the guy might have gotten a little... A handful of upgrade components together with a “dyno tune” within the ignition repays significantly, and the more modified the motor, say the guys at SPP, the more essential that ignition upgrade becomes. Maybe some hot new coils, definitely an adjustable control module, fine quality plug cables, and performance quality spark plugs to match, that makes up the parts list. Speed’s utilizes the plug-in Daytona Twin Tee modules on those motorcycles and with the Twin Tee program, adjusts the ignition exactly as it’ll be completed with a Power Commander, straight down to selecting the multi-spark settings and single-or... Along with tailor made calibration, enhancements to the coils, spark plugs, and plug wires make sense, too. When the pressure goes up the same is true for the the temperature, and since spark plugs must eliminate heat, a colder heat range spark plug might be needed. With a fuel-injected motorcycle that custom made ignition tweaks, adjusting the advance and timing can be achieved utilizing the same Power Commander that the fuel delivery. Matching these hi-po coils using the most reliable set of low-resistance cables you can buy is yet another excellent move. From a carburetor as well as a set of two injectors, a well calibrated fuel mixture won’t present the whole performance it’s capable of if it hasn’t been fired at right moment along with a strong ignition. That optimized fuel mixture demands an equally optimized ignition system and pro tuners definitely know this. Neglect the ignition, especially the advance curve, and you’ll be leaving a lot of the rewards from any performance pipes, pistons, cams, and heads that you may possibly currently have directly on the table. At Speed’s Performance Plus (SPP) an ignition upgrade is definitely part of the plan. But first come the basics, those common ignition problems that surface from time to time. Though one plug is firing the charge in the cylinder ready for it, the other one is sparking off within the cylinder that’s not ready for its power stroke. If any residual fuel charge is left in the cylinder, which is often the outcome, it’ll also be ignited. Hard copper-core wires, however, aren’t often best with those adjustable ignition units. Neglect the ignition step in a performance tune and you’re missing out on a lot. High-output coils, supplying up to 45,000 volts, will definitely alllow for a smoother-running, easier-starting motor. Iridium tipped plugs, such as the NGK Iridium IXs SPP utilizes, have been created specifically for the performance enthusiast. An excellent substitute, savvy and modern tuners have realized, is a spiral-core style spark plug cable, easily available. Modified engines, specifically when the pressure have been bumped up, will often require a differ from the stock spark plug specs.

Ignition coil resistance - Bookshelf


1664 pages

Automotive Technology, A Systems Approach

Creator: Jack Erjavec | Technology & Engineering - 2009-01-08

An ignition coil uses these principles and has two coils of wire wrapped around an iron core. ... When current flows through a conductor, it will immediately reach its maximum value as allowed by the resistance in the circuit.

Publisher: Cengage Learning

About this book
AUTOMOTIVE TECHNOLOGY: A SYSTEMS APPROACH, 5th Edition remains the leading authority on automotive theory, service and repair procedures. The new edition has been updated to include coverage of hybrid vehicles throughout the text, new content on electronic automatic transmissions, preventive maintenance, and many other topics that reflect the most recent changes in the industry. Chapters cover the theory, diagnosis and service of all system areas for automobiles and light trucks, and the content closely adheres to the 2008 NATEF Automobile Program Standards.



144 pages

Honda 250 & 360Cc Twins, 1974-1977, Service, Repair, Performance

Creator: Ed Scott, Eric Jorgensen | 1983-07-01

101 up to approximately 15000 volts in the secondary winding of the ignition coil. ... Resistance should be approximately 3-5 ohms. 2. Measure secondary coil resistance between either primary lead and the secondary lead of the suspected ...

Publisher: Clymer Pubns



675 pages

Computerized Engine Controls

Creator: Steve V. Hatch | Transportation - 2011-04-11

Ignition Coils The latest V6 engines use a direct ignition system with one coil and driver transistor per pair of cylinders (a ... Ignition coil resistances should be 0.70 to 1.10 Ohmmeter Figure 16–40 Ignition coil resistance check.

Publisher: Delmar Pub

About this book
Delivering solid coverage of both domestic and imports, COMPUTERIZED ENGINE CONTROLS, 9e equips readers with the foundational knowledge needed to successfully diagnose and repair vehicle electronic systems. Reflecting the latest technological advances from the field, the Ninth Edition offers updated and expanded coverage of the approach of diagnostics, air/fuel ratio sensors, OBD II, and much more. This text includes in-depth insight into such cutting-edge topics as hybrid and fuel cell vehicles, GM's 42-volt system, hexadecimal conversion, multiplexing, and logic gates. Key concepts are reinforced with ASE-style, end-of-chapter questions to familiarize readers with the types of questions they are likely to see in certification testing.


Ignition Directory

What If an Ignition Coil Has Low Secondary Resistance ? | eHow
The ignition coil in an automotive engine is a transformer consisting of two coils, or windings, of insulated wire. Low-voltage current from the battery flows through ...

How to Check the Resistance of a Motorcycle Ignition Coil ...
How to Check the Resistance of a Motorcycle Ignition Coil. Motorcycle engines rely on three different ingredients to create combustion: air, fuel and spark. If any of ...

Honda GC190 Ignition Coil Primary & Secondary Resistance ...
Visit http://www.thesmallengineshop.net **Always follow the instructions in your repair manual when doing repair or maintenance work on Outdoor Power ...

Coil Test - Testing Your Ignition Coil - Coil Resistance ...
Your ignition coil can be the culprit in many automotive troubleshooting situations. You will need to test your coil to see if its bad.

Coil Resistance Test - About
The primary winding of your ignition coil is the first to receive voltage from the battery. Find the resistance specifications for your car's primary coil winding in ...


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Editor's picks

  • FORD 4.6L 5.4L V8 COMPLETE SET OF 8 IGNITION COILS DG508

    Automotive Parts and Accessories
    List Price: $303.88

    DG-467 DG-473 DG-508 DG-491
    1L2U12029AA 1L2U12A366A
    COP9 FD503 F523 FD493 C566 5C1412 GN10164


  • Motorcraft

    Motorcraft DG508 Ignition Coil

    Automotive Parts and Accessories (Motorcraft)

    Rating (32 reviews):
    (4.8/5)
    Motorcraft

    (Not a) Knock-off

    0 5/5 fferd - See all my reviews Verified Purchase(What's this?) This review is from: Motorcraft DG508 Ignition Coil (Automotive) Purchased this thinking it was a genuine Ford part, but its a knock-off with no discernable markings. Still working as it should 2 1/2 months later so here's hoping it lasts.UPDATE: My mistake, this turns out to be a genuine Motorcraft part. This item, at least for me at the time, came in plain packaging and the coil pack itself did not have any brand labeling on it unlike the coil packs it was replacing so I made the assumption it was a knock-off. Changed rating to 5 stars and this coil pack is still running strong.UPDATE May 2014: Still running strong with no problems whatsoever. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , April 13, 2012

    Amazon's web site said it would fit but connection on the side NOT on top

    0 1/5 Benjamin Bradley Bickford - See all my reviews Verified Purchase(What's this?) This review is from: Motorcraft DG508 Ignition Coil (Automotive) Amazon's web site said this was a fit for my vehicle but it is not the correct one. The connection adapter is on the side not on the top like the ones originally in my Ford Expedition. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , November 11, 2013

    So far so good... But....

    0 3/5 TexasGunGuy88 - See all my reviews Verified Purchase(What's this?) This review is from: Motorcraft DG508 Ignition Coil (Automotive) So far so good, I gave it three stars because it didn't fill very well but eventually got it to work, it functions fine after 1000mi so far 0 Help other customers find the most helpful reviews  Was this review helpful to you? , October 28, 2012
    List Price: $72.42
    Price: $38.95
    You Save: $33.47 (46%)
    Durable and reliable under extreme conditions
    Made of high quality
    High electrical resistance
    Motorcraft partners with many suppliers to product their products so although in a Motorcraft box and made to Motorcrafts specifications, this product may have been produced by an approved Motorcraft supplier
    Resists corrosion and abrasion
    Provide excellent starting connections


  • Tisco

    6V Ignition Coil International Harvester 300 350 424 450 460 560 606 656 660 666 686 706 756 766 806 826 856 Hydro 86 M OS6 Super H Super M W450 W6 2424

    BISS (Tisco)

    Rating (2 reviews):
    (5.0/5)
    Tisco

    Five Stars

    0 5/5 B. Cohn - See all my reviews Verified Purchase(What's this?) This review is from: 6V Ignition Coil International Harvester 300 350 424 450 460 560 606 656 660 666 686 706 756 766 806 826 856 Hydro 86 M OS6 Super H Super M W450 W6 2424 Cost is 1/3 of what tractor supply store was asking. had to be rotated 180 degrees but no problem. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , August 12, 2014

    it worked

    0 5/5 Angel 49 "Angel49biker" (Michigan, usa) - See all my reviews Verified Purchase(What's this?) This review is from: 6V Ignition Coil International Harvester 300 350 424 450 460 560 606 656 660 666 686 706 756 766 806 826 856 Hydro 86 M OS6 Super H Super M W450 W6 2424 Everything was as expected and arrived quickly. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , August 11, 2014


  • ADP

    New Ignition Coil Set (6PCS) 2001 2002 2003 2004 2005 2006 2007 2008 Ford Escape GDG500 18LZ12029AA

    Automotive Parts and Accessories (ADP)

    Durable and reliable under extreme conditions
    Resists corrosion and abrasion
    Provide excellent starting connections
    Made of high quality
    High electrical resistance


  • ADP

    99 00 01 02 03 FORD Ignition Coil DG508 DG457 DG472 DG491 8PCS F150 F250 F350 MUSTANG E150 E250 E350 EXCURSION EXPEDITION F450 F550 CROWN VICTORIA NEW

    Automotive Parts and Accessories (ADP)

    Rating (71 reviews):
    (4.5/5)
    ADP

    Problem solved

    0 5/5 Robert A. Taylor - See all my reviews, April 6, 2012

    Good price, good product

    Do not be affraid to purchase these Coils because of the price. I've had them in my 2001 F150 5.4 for a while now without fail. Also, don't pay big money to have a mechanic put them in because it isn't too difficult. The passenger side is fairly easy, just take the EGR valve out of the valve cover and put it to the side. Same for the heater hoses coming from the firewall just tie them to the side with a piece of rope or bungy so you can get at the last coil. The harness attached to the coil has a small push up clip underneath so just push up with your finger and remove slowly so it doesn,t break. When that's off you have to remove the feul injector harness. It's a squeeze type harness and pretty straight forward. Once the harnesses are disconnected you will need a 7mm socket, 1/4" drive ratchet, several different length of extentions and a knuckle. The knuckle is an absolute because it cannot be done without it. The rear coil on passenger rear is trying, but with the... 5/5 Romby - See all my reviews Verified Purchase(What's this?) This review is from: 99 00 01 02 03 FORD Ignition Coil DG508 DG457 DG472 DG491 8PCS F150 F250 F350 MUSTANG E150 E250 E350 EXCURSION EXPEDITION F450 F550 CROWN VICTORIA NEW Do not be affraid to purchase these Coils because of the price. I've had them in my 2001 F150 5.4 for a while now without fail. Also, don't pay big money to have a mechanic put them in because it isn't too difficult. The passenger side is fairly easy, just take the EGR valve out of the valve cover and put it to the side. Same for the heater hoses coming from the firewall just tie them to the side with a piece of rope or bungy so you can get at the last coil. The harness attached to the coil has a small push up clip underneath so just push up with your finger and remove slowly so it doesn,t break. When that's off you have to remove the feul injector harness. It's a squeeze type harness and pretty straight forward. Once the harnesses are disconnected you will need a 7mm socket, 1/4" drive ratchet, several different length of extentions and a knuckle. The knuckle is an absolute because it cannot be done without it. The rear coil on passenger rear is trying, but with the... Read more Help other customers find the most helpful reviews  Was this review helpful to you? , September 20, 2013

    great product

    0 4/5 brandy bailey - See all my reviews Verified Purchase(What's this?) This review is from: 99 00 01 02 03 FORD Ignition Coil DG508 DG457 DG472 DG491 8PCS F150 F250 F350 MUSTANG E150 E250 E350 EXCURSION EXPEDITION F450 F550 CROWN VICTORIA NEW NAPA Autozone Advance had their coil 8 packs way higher priced and this worked as good as theirs. Truck ran so smooth after these were replaced I can hardly tell its actually running. Thank you 0 Help other customers find the most helpful reviews  Was this review helpful to you? , March 31, 2012
    List Price: $130.00
    Price: $43.99
    You Save: $86.01 (66%)
    Made of high quality
    Provide excellent starting connections
    High electrical resistance
    Resists corrosion and abrasion
    Durable and reliable under extreme conditions


  • FOREVERUNAUTO

    BMW 6 Ignition Coil 323 325 328 330 Z3 525 528 540 740 X5 M3 Convertible Touring #12131748017 # 0221504029

    Automotive Parts and Accessories (FOREVERUNAUTO)

    Rating (38 reviews):
    (4.1/5)
    FOREVERUNAUTO

    Excellent deal

    0 5/5 Fourstring Monster - See all my reviews Verified Purchase(What's this?) This review is from: BMW 6 Ignition Coil 323 325 328 330 Z3 525 528 540 740 X5 M3 Convertible Touring #12131748017 # 0221504029 I own a 2000 BMW Z3, the last thing i wanted to do was purchase NON BMW parts but the cost of these at the dealer (750 and change) compared to the age of the car and how many miles it has (139,000) it was a risk i was willing to take AND i could not be happier I did..they work perfectly..no more rough idle and goodbye engine light (it will be back it.. always does ,BMW owners know this) but my baby runs smooth and my acceleration is back i push on the gas i go forward and rather quickly now yeah...top is down and the radio is up :0) 0 Help other customers find the most helpful reviews  Was this review helpful to you? , April 18, 2013

    save your money

    0 4/5 swill - See all my reviews Verified Purchase(What's this?) This review is from: BMW 6 Ignition Coil 323 325 328 330 Z3 525 528 540 740 X5 M3 Convertible Touring #12131748017 # 0221504029 I am on a tight budget and had no choice but to try these coils, no way could I afford the bosch units,,, at least right now, but after reading other reviews I went ahead and purchased the coils, through foreverunauto, no issues, there was a slight delay in shipping but other then that my mechanic stated they worked just like the higher priced units, installed with no issues and my problem was solved, car running without issue, so I recommend purchasing these and saving money, 0 Help other customers find the most helpful reviews  Was this review helpful to you? , February 28, 2014

    Runs like Gold

    0 4/5 Trent - See all my reviews Verified Purchase(What's this?) This review is from: BMW 6 Ignition Coil 323 325 328 330 Z3 525 528 540 740 X5 M3 Convertible Touring #12131748017 # 0221504029 I ordered this as a result of a misfire and as everyone is on a budget, these did the trick. I did however use the OEM coilpack clips on these because the clips that came with these don't really click.. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , July 27, 2013
    BMW OEM Ref. #12131748017 , 12131748018 , 12139067830
    New not remanufactured
    Direct replacements
    This coil over plug Ignition Coil SET of 6 feature the following specifications:For LH (Driver Side) or Front (Radiator Side) & RH (Passenger Side) or Rear (Firewall Side) - Complete Engine Set
    Bosch Ref. # 0221504029 , 00110


  • Standard Motor Products

    Standard Motor Products UF-529 Ignition Coil

    Automotive Parts and Accessories (Standard Motor Products)
    List Price: $45.57

    Our premium ignition coils consist of a special blended formula for the best performance, longest life and better heat dissipation
    A full E-Lam core of silicon steel and solid brass high voltage terminals protects against corrosion. Our ignition coils are built for maximum output voltage
    Our ignition coils use 100% pure copper windings in the primary and secondary bobbins to improve durability and provide higher resistance to internal shorts and dielectric breakdown
    IGNITION COIL
    Standard is a global manufacturer of original equipment ignition products, complete quality control is maintained through the manufacturing process from componentry to finished product


  • Dynatek

    Dynatek 3 OHM Dual-Output Coils - --

    Car Audio or Theater (Dynatek)
    List Price: $162.95
    Price: $119.12
    You Save: $43.83 (27%)

    Can be used for dual-plug applications
    Made to work with all points ignitions, aftermarket electronic ignitions and most factory electronic ignitions
    3 ohm, 12 volt, angled dual output
    Dyna Coils are the industry standard, delivering 35,000 volts with spark energies second to none
    Sold in a pair


  • Taylor Cable

    DK Custom Products 409 PRO RACE Plug Wires Universal Fit BLACK

    Automotive Parts and Accessories (Taylor Cable)

    The 10.4mm wires deliver 102,000 volts dielectric strength.
    ***These will NOT fit 1995-2003 Sportster Coils***
    Spiral-Wound core with 350 ohms per foot resistance for EMI and RFI suppression delivers theÿMaximum Fire Powerÿwithout radio interference and recommended for use with electronic ignition systems found on Harley-Davidsons.
    "409" PRO RACE wires provide continuous heat protection up to 600 degrees Farenheit.
    Low Profile 100% silicone PRO BOOTS feature vibration proof double spring locking spark plug terminals.


  • Motorcraft

    Motorcraft DGE446 Ignition Coil

    Automotive Parts and Accessories (Motorcraft)

    Rating (4 reviews):
    (5.0/5)
    Motorcraft

    Genuine OEM Motorcraft

    0 5/5 Geoffrey S. Berrios "BerriosGS" (Atlanta, GA USA) - See all my reviews, May 29, 2012

    Five Stars

    0 5/5 Shih Shung "one-only" - See all my reviews, July 31, 2014

    very good product.

    0 5/5 Rickey Page - See all my reviews Verified Purchase(What's this?) This review is from: Motorcraft DGE446 Ignition Coil (Automotive) no problem with the install. very good product. 0 Help other customers find the most helpful reviews  Was this review helpful to you? , August 7, 2014
    List Price: $125.27
    Price: $70.17
    You Save: $55.10 (44%)
    Made of high quality
    Durable and reliable under extreme conditions
    Provide excellent starting connections
    Resists corrosion and abrasion
    High electrical resistance


Ignition