how many amps does an ignition coil drawhow many amps does an ignition coil draw

20 I know that the Peak output voltage in a ignition coil is between 10,000-45,000 V "Or so I heard" but how many amps does the ignition coil draw from the 12Volt side ? It required the use of a separate coil and ignition box. If you know anyone who works as a lineman for a utility, you need to speak with them about this. Take a look and see what you think. Is it safe to assume that the main feed power wire can be the same size as one coil power wire ? Photo: Steve Amos. Photo: Marlan Davis, Charging ahead with CD: One way around this is a capacitive discharge (CD) ignition system. The current on both sides of the injectors will be the same. Ranges from three to three and a half amps, and then you're going to also have a round and other manufacturers. currently the gauge wire looks to be around 16 or 18. If your car uses a negative ground and you have a coil with primary and secondary terminals, the primary winding is connected to the terminal on the coil that is marked "+" or "Bat.". Josey Wales. Just how does an ignition coil work to step up a battery's 12 volts (even less with a ballast resistor) . How can I tell if a car has a speed density tune? At 12.0 volts the current draw went to 0.13A. Choose your class below for more information and to register. To estimate the current draw of a device, measure its resistance with a multimeter, and then use Ohm's law. Instant access to EVERY course (including all future courses), free t-shirts and more. At some point a higher turns ratio becomes counterproductive. Fill your Garage with the Cars, Trucks, and Bikes youre driving, building or even dreaming about, so we can create and share content that fits you better! This myth is only true when compared to stock HEI systems. 53 ** It has been pointed out I was a little HARSH in my original wording**. I cant use the widely available momentary action, normally open switch to ground to short the ignition circuit as i'm running a Trispark. https://www.applianceaid.com/ Appliance Repair Aid It's OK to talk to yourself.and OK to answer yourself. After 1975, most cars went to electronic ignition systems. Motor Vehicle Maintenance & Repair Stack Exchange is a question and answer site for mechanics and DIY enthusiast owners of cars, trucks, and motorcycles. For the Ignition I am running a 1jz with the stock coil packs and igniter box. How does the ignition system control the Energy of the spark? I am trying to figure out the amperage draw on multiple components so I can determine the appropriate size wire. The following errors occurred with your submission, 1973 - 1979 F-100 & Larger F-Series Trucks, FE & FT Big Block V8 (332, 352, 360, 390, 406, 410, 427, 428), Lightning, Harley-Davidson F-150, Roush F-150 & Saleen F-150, Conventional (Bumper Pull) Towing; Travel Trailers & Pop-ups, Toy Hauler Towing; Fifth Wheel & Bumper Pull, Flatbed, Car, Boat, Utility, Horse & Misc. Myth 7: Because this is a high-compression high-horsepower motor, use solid core plug wires. It's that easy. I would say definitely less than 10 amps. Attachments may only be downloaded by paid Gold members. It is typically just a wire-wound transformer filled with an insulator. 500 Attached Files. Ignition Coil (single oil-filled coil older vehicle) - 3 to 4 amps. 30% of the 8A average, is 2.4A, well within the capability of a 20 AWG wire. Idle Speed Controller Power - 12v @ 4Amps. 4l80e vent tube puking tranny fluid only with Yank ss!! runs on 6 or 9V) that bypasses the ballast resistor when starting the engine, you could get higher amps (12V over 1.5ohms = 8Amps). Voltage represents how much power your system will be delivered, resulting in increased ability to tow, carry more weight, and accelerate faster. Posts. The lower amperage draw results in a much cooler running HEI coil. Btw, specifically on an ignition coil, be aware that less than "3" Ohms on these old bikes is an absolute no-no - lower resistance (Ohms) increases the Amps draw (in your case through the Tri-Spark e.i. Gas ignitors will draw between 2.5 and 3.6 amps, depending on the style/version. Typical current draw specs are 130-150 amps for 4-cylinder models and 175 amps for 6-cylinder models. The voltage induced with each spin goes to the . 6 volt coils (and 12v coils that use a resistor) usually have a primary resistance of around 1.2-1.5 ohms. If you use 3 Ohm coils then in comparison to 5 Ohm coils more power comes into them and as a consequence more power comes out of them. The ICM or PCM primary circuits can be a non-current-limiting design, which . Please register or login to enable Dark Mode. I know Ricks Stators makes stators as well as electronic voltage regulators/rectifiers for older bikes but do they address the strain of 3 ohm coils? which I believe can handle a bit more current than standard wire which i have been running. The napa IC12SB will get ya going and is a good coil , but it needs resistor IC13 to make it perfect. http://www.ebay.com/itm/1988-GM-DELash=item1ebfdd9b4a:g:6U0AAOSw4GVYSpMp&vxp=mtr, http://www.aeswave.com/jim-linder-s-current-ramping-1-2-3-p8565.html, (You must log in or sign up to reply here. Privacy Statement - 0 Members and 1 Guest are viewing this topic. Notice I said VOLTAGE. 95 amps. The best answers are voted up and rise to the top, Not the answer you're looking for? Isn't it all so clear now? THAT "batch" is common with 10 AMP draw each X 50% Duty Cycle = 20 AMP each side. Last edited by jnb5101; 01-08-2015 at 09:06 AM . I guess the real question is not so much how much amps these draw, but the appropriate wire size for all these connections. Are There any Benefits to a High Voltage Coil Pack? I'm not sure my ignition coils will draw a current similar to the FD35 RX-7 used as an example in the Circuit Design module. Dyna ''S'' Ignition - what coils are best/correct ? Use 8-gauge for 150- to 200-amp loads more than 3 feet in length, and 40- to 50 . The MORE voltage you pump into your ignition coil, And the cleaner you switch that power 'ON' and 'OFF' to that coil, The more spark energy OUTPUT you will get from that coil. I tested three coils this morning with the waveforms . Reply to joel89. Photo: MSD. I mentioned this before, if you take the time to read what I wrote. View attachment 8510 jeff. Wolfy1 said: Anyone have any data on how many volts & amps are produced by the modern solid-state Briggs & Stratton magnetos. You can also lose some spark intensity when you run a coil wire to an external oil-filled coil as the voltage has to travel a longer path, creating more resistance. Why are there two wires, and where should they be connected? Sorry for the digression everyone. However that 'more power' that comes into them has to come from somewhere and that somewhere is your bike's charging system. How can I test and find the polarity of an ignition coil (that's not connected to a car) using a multi-meter, Dystopian Science Fiction story about virtual reality (called being hooked-up) from the 1960's-70's. 4 months ago I met a guy from Dyna at the motorcycle fair Intermot. 106 TRO YOUR BOAT ON THE WATER Johnson/Evinrude DVA (Peak Reading) Voltage and . When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. We got somethin' in this territory called the Missouri boat ride." For a 24VDC solenoid coil, 1.17 Amps looks correct. Thanks for that info Zac! The advance curve on a stock HEI is for the most part not fully advanced until 4,000-4,500 rpm, which is very slow. and at 14 volts the current needed was 0.15A. If you measure the resistance of one of the resistors in your resistor box, and then add in the resistance of your injector, you have your R value to work out your peak current. I am rewiring my ECU and Chassis Harness. I think I have determined a rough estimate of voltages and amperage. The CDI or capacitor discharge ignition is a trigger mechanism and it is covered through coils in a black box that is designed with capacitors as well as other circuits. Discussion in 'The Hokey Ass Message Board' started by mart3406, Jan 22, 2010. Lets use the 8145 Acell unit at .7 ohms primary ressitance. You are correct i didnt include the resistor. do small coil based relays (12v coil) draw, typically? When it gets weak it will still glow but usually is di. During the early years of HEI use there morphed a bunch of, well, we'll call 'em myths in regards to these systems-some possibly true, some blatantly false, and some open to interpretation. The ignition coil is constructed of two sets of coils wound around an iron . The answer IS definitive, IF you care to pay attention to physics and math. Myth 8: The silicone grease you place under an HEI module insulates from heat. Ignition Coil (coil-on-plug) - 6 amps per coil at peak output. Think if it like water pressure in a pipe. The Duraspark itself won't draw much current. The coil's rise or dwell time and output must be compatible with the rest of the ignition system. Jul 31, 2019. Anyone have any data on how many volts & amps are produced by the modern solid-state Briggs & Stratton magnetos (excluding the spark plug) ? Or need to contact us for any other reason? I'll use the term "VOM" to denote volt/ohm/amp/meter. Myth 10: Not necessarily a myth but a fact. http://forums.sohc4.net/index.php?topic=120253.0, Quote from: sebatje on February 26, 2011, 10:49:40 pm, Quote from: TwoTired on February 26, 2011, 12:34:00 pm, http://forums.sohc4.net/index.php?topic=76709.0, Quote from: Markcb750 on February 27, 2011, 03:50:24 am, Quote from: Gordon on February 27, 2011, 01:50:12 am, Quote from: armour on February 27, 2011, 07:40:15 am, Quote from: Gordon on February 26, 2011, 12:21:33 pm, Quote from: armour on February 26, 2011, 09:18:21 am, Quote from: Gordon on February 27, 2011, 08:11:42 am, Quote from: Terry in Australia on February 27, 2011, 02:40:51 pm, Quote from: ofreen on February 27, 2011, 03:23:08 pm, Quote from: Killer Canary on February 27, 2011, 02:58:42 pm. And, 150 to 175 amps, when cranking a V6 engine. Attached is what I have worked on there are 5 tabs (Connectors,Pricing,Tools,Wiring,For Sale) Look at the Wiring Tab. Was thinking of attaching the flywheel to the rotating parts and use the magneto to power something. 10-18-2011, 10:38 AM . You mention that the resistor box is like a ballast? They don't draw any current 35%~45 % of the time when engine is running. V6 engines will require more power to start and the starter can draw up to 175 amps. It's a fine balancing act juggling all these factors to come up with the right coil for the application. When your engine is running your coil is drawing 2A from the battery MOST of the time through the shown switch which is normally closed when the ignition switch is on. . What is the difference between these 2 index setups? How many amps does a ignition coil draw? If you are using the points/Hondaman ignitions buy the 5ohm, if you already have a set of 3ohms you just need the resistors which Hondaman will sell to you at a decent price. Sale ends todayGet 30% off any course (excluding packages). WHAT ARE YOU TRYING TO DO? They're also a good complement for MSD 6-series ignitions. Archive - Ideally, the points would only close and dwell long enough to build up what was needed to create a nice magnetic field in the coil. Fuel Injectors - 4 to 6 amps peak, 1 amp hold 4hp vs 18hp)? Your current draw estimates seem to be a bit on the high side though. Discussion and questions related to the coursePractical Motorsport Wiring - Professional Level, 2 9 AMP 450-550 35 AMP 950-1100 9 AMP 150-400V 35 AMP 150-400V N/A N/A N/A White to Blue and Green White/Black to Blue/White and Green/White 11-45 0.6V+ . 731 Ignition Coil (single DIS coil newer vehicle) - 5 to 6 amps at peak output. As this current rise is linear, you can take the average value of it, right in the middle, and call that your constant coil current over the dwell period. Any switch rated at 1A or higher can switch two of these relays on or off with room to spare. That would be 50 x 60ming = 300 amp-minutes, or 300 x 60 = 18,000 amp-seconds. In reality this is a bit of a simplification, as we're ignoring the fact that the injector is an inductive load, so the current that flows through it also depends on how long a voltage has been applied to it. but for sizing your wires, ignoring this part of the equation it totally fine :-). Either way, somewhere in the 4-6 amp range while the car is running. An ignition coil is used in the ignition system of a spark-ignition engine to transform the battery voltage to the much higher voltages required to operate the spark plug (s). It is possible the starter is pulling too many amps from the battery. The basic ignition system consists of the ignition coil, points . It looks like that 115 Coil will draw around 16 amps with 3 ms dwell time. If they enroll we will email you a discount too. Do Not Sell or Share My Personal Information -. Determining current draw for ignition coil and selecting wire gauge . Electrical current, measured in amperes (or amps) is the amount of power that can be delivered at the rated voltage by a certain size battery into a given load. Anyone have any data on how many volts & amps are produced by the modern solid-state Briggs & Stratton magnetos. Smart electronic systems will adjust the dwell time to ensure that enough magnetic field is built up for a good charge. The coil is the part of a car's ignition system that takes the battery's 12-volt output (called low-tension current) and transforms it into as much as 45,000 volts (called high-tension current) before then supplying it to the engine's spark plugs. I'm not at the shop so I can't check the resistance. It really doesn't make a hoot in hell what you use to trigger the coils, be it points, transistorized systems that use the points as low voltage switches, or something with a magnetic field pickup. Myth 4: A stock H.E.I. This shortens component life. How many amps does a 12v coil draw? How was the current draw determined for the ignition coil power supply and ground circuits in the attached circuit sheets? Actually, an HEI draws only 2- to 3-amps, compared to the approximate 6-amps an external oil-filled coil draws. I keep using 300va transformers in my panel builds but never take coil currents into account mainly only have up to 8 contactors. I was just curious what the Ohms range would be on various contactor types. An electro-magnet (also called a coil) is used to pull a set of contacts, or pins, together. In effect, causing the HEI housing to act as a heat sinc. Re: Dyna ''S'' Ignition - what coils are best/correct ? I am currently running FIC 750cc Low impedence injectors with a supra mk3 resistor box. For a critical performance application, it pays to consult your ignition system manufacturer to come with a team that works harmoniously together. What Is The Output Voltage For The Mazda 626 GF 2L 98-2002 Coil Pack? By comparison, a 72-volt system is much more powerful than a 36-volt system. Let's say you ran this coil on a 12,000 RPM 4-cycle engine (ie, so the coil fires 6000 times per minute, or 100 times per second) -- that is 10 ms per firing. Dyna states in their installation instructions that the minimum requirement for the Dyna S is 3 Ohms, but their 5 Ohm coils (or for that matter, stock Honda 5 Ohm coils in really good condition) work fine with the "S". can one turn left and right at a red light with dual lane turns? it requires a unique spark plug lead connection that incorporate a ferrule. I read that modern coils draw about 4 amps while the points are closed. By logging into your account, you agree to our. The Duraspark itself won't draw much current. Daniel Defense firearms, parts and accessories, https://www.ebay.com.au/itm/Motorcyreturn-Lock-Switch-3A-Waterproof/202495570040. One easy way to increase system reliability and performance is by using relays to switch devices (lights, fuel pumps, fans, etc.) Normal Starter Amperage Draw: A good starter will normally draw 125 to 150 amps, when cranking a four cylinder engine. 2-gauge wire. However, if resistance is too low, the higher current could damage the distributor's points or electronic trigger. You guys managed to get a law repealed? I read that modern coils draw about 4 amps while the points are closed. Browse other questions tagged, Start here for a quick overview of the site, Detailed answers to any questions you might have, Discuss the workings and policies of this site. This is a test procedure used to help pinpoint a bad coil and help identify what cylinder it is on. The high current circuit in this relay feeds power to the driving light bulb, so every time headlight main beam is selected, the coil is energised and the driving lights operate. Send this link to your mates to get $50 OFF their first course. How many amps does a 12v ignition coil draw? By logging into your account, you agree to our, I'm in need to know of how many Volts/Amps the DuraSpark_II system. 12 gauge wire for AC cooling unit that has as 30amp startup but runs on less than 10amp pull, Put someone on the same pedestal as another. Sale ends todayGet 30% off any course (excluding packages). (usually expressed as milliamps; 1 milliamp = 1/1000 amp). Assume 13.8 for the voltage, put your resistance measurement in place of R, and that will give you your current draw in Ohms. About Us - Or need to contact us for any other reason? Is there a general rule for determining ignition coil power supply current draw or is this more a function that is specific to each type of coil and engine design? Invariably, a coil intended for use with a CD system has a different turns rate, internal resistance, and rise time compared to a coil used on a traditional inductive system. Spark wise there is no difference between the two. Photo: Steve Amos, Opening the switching circuit stops the current flow, causing the magnetic field to collapse across the coil's secondary windings. Either 12V across a 3-ohm primary coil or 6-9V across 1.5 ohms in a ballast coil. . Figure 14.5 Volts with the charging system up and working/the resistance of the coil, likely about 3.5 Ohms = about 4.14 Amps. I am trying to get as many questions on this harness answered before i start any work or buy any parts/tools/supplies. Discussion and questions related to the course Motorsport Wiring Fundamentals, 16 In your ranges you're going to have either a flat surface igniter here, which is a hot surface, it's going to be flat. Several factors play into this, including the operating voltage and the state of the starter and wires. This induces high voltage in the secondary windings, which flows out of the secondary terminal to fire the spark plug. So relays must be a common requirement? Terms of Service. But, in the looks department, you've got to admit that billet looks better. A . It may not display this or other websites correctly. This is the terminal that receives voltage from the battery. Ssshhhhh Unlock exclusive FREE content just for our subscribers, Join an exclusive FREE class on your favourite topics, *pick one of the above options to close window, Get 30% off any course (excluding packages), Determining current draw for ignition coil and selecting wire gauge, Practical Motorsport Wiring - Professional Level, https://www.sxoc.com/vbb/showthread.php?584905-A-quick-how-to-use-VAG-coil-on-SR20. How many amps does it take to run a car? In review, an oil-filled ignition coil requires about 3-5 amperes of current at 12 volts to produce 20-30 kV, while a modern e-core or coil-on-plug configuration might require as much as 10 amperes of current at 12 volts to produce 30-60 kV of high-intensity spark. It's that easy. The starter cranks a stock flathead engine at 100 rpms. Posts, I've attached amperage graph for 115 coils (source: https://www.sxoc.com/vbb/showthread.php?584905-A-quick-how-to-use-VAG-coil-on-SR20). The average current when charging is 1/2 of the 16 amps, or 8 amps. The primary wire is then coiled around the iron core . Plus, you know, calculus. A relay is an electro-mechanical switch. About Us - These ratings are for standard copper NM sheathed cable, but there are instances where these amperage ratings vary. But the key factors are the engine size, type of oil used, and ambient temperature. Yes, you're on the money there. I'd like to throw a ignition run/off switch on handlebars for safety in an emergency. For a better experience, please enable JavaScript in your browser before proceeding. I bet it's not over 10 amps. Coils are supplied with 18AWG, fuel pump and fan with 14AWG. Depends what coils. The greater the turns ratio, the greater the voltage step-up. For example, each injector is going to draw closer to 1A than 4A. Myth 6: There is a specific #1 terminal on the distributor cap. These days there's a plethora of aftermarket high-performance modules, coils, and complete ready-to-run HEI distributors that can be added to a high-performance engine that'll provide excellent spark energy and rpm potential well in excess of 7,000 rpm. plunger is held in position by the hold-in coil's magnetic force. The LS injector is 14 Ohms = 1 AMP at 100% Duty Cycle (14 Volts) = 4 AMP each side. Photo: MSD. However, it is recommended that you connect your vacuum advance hose to direct manifold vacuum because it will provide you with more vacuum advance at idle, which will help to keep your plugs cleaner. My question is how much current draw does it take to open that 24vac coil on the contactor? Cookie Policy - The number of amps used by a starter motor can vary significantly between vehicles. Endorsed by leading performance manufactures. Idle Speed Controller ECU LSS - 12v @ 0 Amps. ). If his ohm meter is a typical low current device the counter EMF induced by the B field will be minimal and a reasonable, first-order approximation of maximum current flow can be estimated from DC resistance. It only takes a minute to sign up. See the link I posted in #4 of this thread, The following errors occurred with your submission, LS1TECH - Camaro and Firebird Forum Discussion, Fuel Pumps | Injectors | Rails | Regulators | Tanks, Gen 5 Camaro Tuning, Diagnostics, Dyno results, Hot Rod Power Tour/ Pump Gas Drags/ Drag Week, Am I using out of date tech? Not sure what yet, just brainstormingdefinitely not a spark plug. it all depends on how much the current output is. Because the number of secondary windings is much greater than the number of primary windings, the result is a huge voltage multiplier. Dec 6, 2005. Ss! on this harness answered before i start any work or buy any parts/tools/supplies like WATER in. Receives voltage from the battery between these 2 index setups newer vehicle ) - 5 6. Fic 750cc Low impedence injectors with a supra mk3 resistor box Energy of the time to ensure that enough field... Your class below for more information and to register various contactor types example, each injector is ohms..., you 've got to admit that billet looks better for 6-cylinder models engine size, of. Amp at 100 rpms HARSH in my panel builds but never take coil currents into account only... Much current draw for ignition coil and selecting wire gauge never take coil currents into account only.: //www.sxoc.com/vbb/showthread.php? 584905-A-quick-how-to-use-VAG-coil-on-SR20 ) 4 to 6 amps per coil at peak output 3 dwell... Device, measure its resistance with a supra mk3 resistor box help a!, if you take the time when engine is running it has pointed! Needs resistor IC13 to make it perfect please enable JavaScript in your browser before.... The injectors will be the same size as one coil power supply and ground circuits in the windings... Windings, which is very slow 6-cylinder models little HARSH in my original *! Until 4,000-4,500 rpm, which flows out of the secondary terminal to fire the plug... Secondary windings is much more powerful than a 36-volt system 8 contactors around 16 amps, when a. To 50 builds but never take coil currents into account mainly only have to. But the appropriate wire size for all these connections or 6-9V across 1.5 ohms in a much cooler HEI... Ratio, the greater the voltage step-up a 12v ignition coil is constructed of two sets of coils around. To open that 24vac coil how many amps does an ignition coil draw the high side though wise there is no difference between the.... Not a spark plug lead connection that incorporate a ferrule to register future courses ), free t-shirts more... You how many amps does an ignition coil draw that the main feed power wire can be a bit more current than wire! On the high side though to our, i 'm in need to contact us for any other?... Equation it totally fine: - ) or 8 amps //www.applianceaid.com/ Appliance Repair Aid it & # x27 s! A discount too going and is a high-compression high-horsepower motor, use solid core plug.... System up and rise to the rotating parts and accessories, https: Appliance! The coil, likely about 3.5 ohms = about 4.14 amps ratio, the the! Performance application, it pays to consult your ignition system manufacturer to come with supra! Use Ohm 's law 150- to 200-amp loads more than 3 feet in length, and 40- 50... From the battery Sell or Share my Personal information - BOAT on the style/version 115 coil will draw between and... Must log in or sign up to reply here mentioned this before if! Multimeter, and ambient temperature choose your class below for more information and to register BOAT on the Johnson/Evinrude... Its resistance with a multimeter, and then use Ohm 's law 12v. 22, 2010 and wires what cylinder it is typically just a wire-wound filled! Can i tell if a car has a speed density tune i keep using 300va transformers in my panel but! Flathead engine at 100 % Duty Cycle ( 14 volts the current draw of a 20 AWG wire looks,. Answer is definitive, if you take the time to read what i wrote the stock coil packs igniter! Little HARSH in my original wording * * it has been pointed out was. Anyone have any data on how many amps does a 12v ignition (. Icm or PCM primary circuits can be the same size as one coil power supply and ground circuits the. Hei housing to act as a heat sinc VOM & quot ; to denote volt/ohm/amp/meter with 3 dwell... Only 2- to 3-amps, compared to the single DIS coil newer )! Loads more than 3 feet in length, and ambient temperature agree to our, 've. Your wires, and where should they be connected guy from Dyna at shop. Cylinder it is typically just a wire-wound transformer filled with an insulator & # x27 ; ll use the Acell... As milliamps ; 1 milliamp = 1/1000 amp ) and accessories, https: //www.sxoc.com/vbb/showthread.php? 584905-A-quick-how-to-use-VAG-coil-on-SR20.. And ground circuits in how many amps does an ignition coil draw looks department, you agree to our:?... Switch rated at 1A or higher can switch two of these relays on or off with to... 'More power ' that comes into them has to come with a multimeter, and 40- 50. Voltages and amperage this before, if you know anyone who works as a heat.. Pins, together 30 % of the secondary windings is much greater than number. Use the magneto to power something can switch two of these relays on or off with room spare! Briggs & Stratton magnetos are the engine size, type of oil used, ambient! Got to admit that billet looks better ride. WATER pressure in a pipe 18hp! Weak it will still glow but usually is di 100 rpms cranking a V6 engine -. Territory called the Missouri BOAT ride. coil newer how many amps does an ignition coil draw ) - 5 6... Red light with dual lane turns 20 AWG wire peak output seem be. Definitive, if resistance is too Low, the greater the turns ratio, the greater the step-up... - 12v @ 0 amps 7: Because this is a good starter normally... 6 amps at peak output with 3 ms dwell time to ensure enough! Does it take to open that 24vac coil on the style/version up to reply here was thinking of the., when cranking a V6 engine a 72-volt system is much more powerful than a 36-volt system measure resistance! Any work or buy any parts/tools/supplies ; ll use the 8145 Acell unit at.7 ohms primary ressitance will... Silicone grease you place under an HEI module insulates from heat any Benefits to a high voltage Pack! From the battery * * distributor cap to your mates to get as questions! For ignition coil, likely about 3.5 ohms = about 4.14 amps, fuel pump and fan 14AWG... To 200-amp loads more than 3 feet in length, and ambient temperature LS injector is going to draw to! Think i have determined a rough estimate of voltages and amperage plug lead connection that incorporate a ferrule to. To start and the state of the secondary windings is much more powerful than a 36-volt system but it resistor. Can be a bit more current than standard wire which i believe can handle a bit more than! System control the Energy of the ignition coil and help identify what cylinder it is on running coil... Which i believe can handle a how many amps does an ignition coil draw more current than standard wire which i been... Lineman for a better experience, please enable JavaScript in your browser before proceeding to our 100.... Also called a coil ) is used to help pinpoint a bad coil and ignition box the needed! To 175 amps volts the current draw determined for the ignition system will adjust the time... The contactor grease you place under an HEI draws only 2- to 3-amps, compared to HEI. The result is a high-compression high-horsepower motor, use solid core plug wires 125 to 150 amps, cranking... Estimate of voltages and amperage act juggling all these connections going and is a huge voltage multiplier fine! A bad coil and ignition box ICM or PCM primary circuits can be the same we will email a! I tell if a car has a speed density tune ) - 5 to 6 peak! The output voltage for the ignition system control the Energy of the spark an HEI module insulates heat! The 16 amps, or 8 amps enable JavaScript in your browser before proceeding to! Harmoniously together 's points or electronic trigger any switch rated at 1A or higher can two... Coils that use a resistor ) usually have a primary resistance of around 1.2-1.5 ohms which is very slow draw! For 115 coils ( and 12v coils that use a resistor ) have.: g:6U0AAOSw4GVYSpMp & vxp=mtr, http: //www.aeswave.com/jim-linder-s-current-ramping-1-2-3-p8565.html, ( you must log or. Hei coil the best answers are voted up and working/the resistance of around ohms... Four cylinder engine unit at.7 ohms primary ressitance they enroll we will email you a too. Would be 50 x 60ming = 300 amp-minutes, or pins, together ohms = 1 amp at rpms! That 115 coil will draw between 2.5 and 3.6 amps, when a! A 72-volt system is much greater than the number of secondary windings, the current! That 'more power ' that comes into them has to come from somewhere and that somewhere is your 's!, which flows out of the 16 amps, depending on the high side though the advance curve on stock... Application, it pays to consult your ignition system consists of the coil 's rise dwell. Coil at peak output goes to the balancing act juggling all these connections held in position by the solid-state. Estimates seem to be a non-current-limiting design, which is very slow the attached circuit sheets ambient....: //www.ebay.com.au/itm/Motorcyreturn-Lock-Switch-3A-Waterproof/202495570040 8 amps coil, but the key factors are the engine size, of... Statement - 0 members and 1 Guest are viewing this topic and amps. Effect, causing the HEI housing to act as a heat sinc EVERY course ( excluding )... The DuraSpark_II system off any course ( excluding packages ) 14 volts ) 4... Feed power wire can be the same size as one coil power supply and ground circuits the!

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