If the original coil was simply given 12V through the ignition system then have no fear. I fitted a small relay from the junk box with its coil in parallel with the starter relay coil. I am in the process of installing a points distributor system in my model T (SBC). A “standard” coil will have an internal resistance close to 3 ohms on its primary windings. In my research I have read on here some of Bubba's threads and posts recommending 3 ohms resistance in the 12 volt+ feed to the coil. You can detect the presence of the resistor by measuring the ohms of primary side of the coil (terminal 15 vs. terminal 1). We apologize that this item is not available for pickup in … 2.9 total. The coil is from an early 50s Ford 2 ton it tested at 1.8 to 2 Ohms, the high tension wires are used, the ballast resistor was used on this engine, prior to its being parked for 6 years. That is what I bought but it only drops the voltage maybe half a volt. Check the multi-meter ohm setting. Part # : BK S43243. The 5.0 ohm section provided a low voltage source to the ECU module internal circuitry thru the 5th pin connection, while the 0.5 ohm section of the ballast resistor provided CURRENT limiting function for the ECU's switching transistor AND the coil's primary winding. Part Number: RRA-18-5450 Not Yet Reviewed If your multi-meter has different ohm settings, then put it on the “X1k” position. If it's powered through a ballast resistor or resistor wire in it's stock form, then continue to use such ballast. Find great deals on eBay for ballast resistor and lucas ballast resistor. Ballast Resistor in Fluorescent Lamp Skip to main content. Shop ... Classic Car Ignition Coil 16 Ohm Ballast Resistor, 134176A, GT6, GT7, TR6, Stag. For what it's worth, I have been using a ballast resistor on my CD175 for a few years now with no problems at all. Order Ballast Resistor for your vehicle and pick it up in store—make your purchase, find a store near you, and get directions. That's my $.02 So you should go with OEM voltage delivery. The alt wire is only 12 gauge, will change this to 8 or 10 gauge for permanent use. The external resistor coil most likely has 1.5 ohms resistance, so you need a 1.5 ohm external resistor to have 3.0 ohms. The Flame Thrower 40,000V coils have internal resistance rated at 1.5 or 3.0 ohms. The resistor being internal or external does not matter. Can I remove the ballast resistor and run a 3 ohm coil? If the voltage measures more than +14.2 volts, you'll need to replace the voltage regulator, install a coil with 3 Ohms or more internal primary resistance or install a 1.4 Ohm external ballast resistor between the ignition switch and the coil's + terminal. To test your ballast resistor you need an ohm meter or multimeter set to ohms as previously suggested but you really need to remove the connectors from both sides of the resistor. I've blown up two of these, one from not having a matched coil and ballast resistor (the total series resistance from the input of the ballast resistor to coil terminal 1 MUST NOT BE LESS THAN 3 OHMS OR IT IS LIKELY TO COOK THE PERTRONIX), and second one from just being a dope. Interesting, a 71 car should have no ballast resistor and use a 3 ohm coil. From United Kingdom; Why? When voltage is tested, coil negative connected to gound and key turned to on, there is … Our Ballast Resistor is designed to be used in conjunction with our available External Resisted Ignitions Coils. Iput 4000 miles on the clock in the last year. --Rob Our Ballast Resistor is designed to be used in conjunction with our available External Resisted Ignitions Coils.External Resisted Ignition Coils have an internal resistance of 1.5 Ohms and when combined with the Ballast Resistor you get a total resistance of 3.0 Ohms which is necessary for 12 Volt ignitions systems. My ballast resistor is 2.0 ohms and I have a .9 ohm coil. Without a ballast, ... 3. And as mentioned, a 1.5 Ohm coil without a ballast resistor will be pulling 14.5/1.5 = 9.7 Amps. A Pertronix II or III is a different story. Its also surprising that the Ignitor worked satisfactorily … The external ballast resistor (or resistor wire) will provide an additional 1.5 ohms of resistance. Ballast Resistors, Marine Coil Resistors, 1.50 ohms Resistance, Each. The solution to this problem was the ballast which reduces the voltage down to the 6-9 volts the 1.5 ohm coil prefers. The coil is a Pertronix Flamethrower 1.5 ohm coil, same ohm value as the factory original coil. They allow you to install aftermarket coils without worrying about frying your ignition. Tech Question Erik Bakko, Brooklyn, NY, 72 Dodge Swinger 318ciDear Mr. Mopar Guru,My ballast resistors have an expected life span of 3 months in my Dart. Output 29.1 kV @ 100Hz. Secondary resistance - 8 - 10,000 ohms. The ballast resistor, supplies the needed voltage during the start up, and then immediately after the arc is established, it reduces the voltage in addition to regulating the current flow. You should be getting 9 … IF you are using the Mopar electronic conversion ignition system ("Orange box") the ballast resistor is 0.8 ohms. A ballast is a kind of resistor who resist the current in the electrical circuit. A ballast resistor is a resistor inserted into a circuit to compensate for different changes. I'm not sure what this littlegem does exactl The 1.5 ohm would require a resistor (or be a direct replacement for the stock coil), the 3 ohm would not. When I changed to 12v I kept the old coil and fitted a 2 ohm resistor in series. These Summit® ballast resistors are perfect for protecting your points-style ignition system. By the formula I found (Ohms x 2= volt drop) a 1.25 Ohm resistor would work. Multi-meter Ohm Setting. About the Product. Check here for special coupons and promotions. 4. Another approach is to eliminate the ballast resistor altogether by using a replacement coil with 3.0 ohms of resistance. It say's OEM replaceent, it also shows a 1.76 ohm resistance built in primarily. Others might give a different answer to the question “what is a ballast resistor” like this: A resistor that has the property of increasing in resistance as current flowing through it increases, and decreasing in resistance as current decreases. I believe single should read 1.8 ohms and dual should read 1.8 and 5 ohms. The 6v coil is 2 ohms and draws 3 amps on 6 volts. First, the ballast resistor is the long, white ceramic thing attached to the left side of the coil assembly. But for a Pertronix I using a 1.5 Ohm coil you need a ballast resistor or a supply of new coils for regular replacement. Secondary turns - 24500. In order to maximize the coil's output during starting, ballasted ignitions have a ballast bypass which sends 12 volts directly to the coil during startup. The ballast resistor. Total about 3 ohm total If I keep the ballast resistor then I think I buy a 1.5 ohm. IF you are using points ignition and the standard Mopar coil (or the equlivant coil) the ballast resistor is 0.5 ohms. ARCELI 1460 Pieces Resistor Kit 73 Values 1%, 1 Ohm 1 M Ohm 1/4 W Metal Film Resistors Assortment for DIY and Experiments $13.99 Only 13 left in stock - order soon. Thing is someone says I need a ballast resistor or I may blow up my tacho?? The coil for a ballast ignition system will have a primary winding resistance between 1 and 2 ohms. Requires 9 V supply, with ballast resistor of 1.8 ohms. According to the paperwork that I have for my Lumenition kit, the power module is suitable for coils or coil/ballast combinations of not less than 3 ohms. Primary turns - 240. Two commonly available 3 ohm coils are the Napa IC14 and the Pertronix High Voltage 40511. As Rob says, surprising an unballasted 1.5ohm coil hasn't cooked but maybe you haven't been on any long journeys. It can either be a ballast resistor or a resistor wire. I have a 1986 Glastron with a 3.0 Mercruiser. This Video explains how the Ballast Resistor Works.For additional How-to Tutorials Visit our Website: http://www.howstuffinmycarworks.com Peak current 3.7 A. Shop with confidence. I have a factory tach that I still wanted to work so I kept the 1.5 ohm pink wire in place. If you use the coil with the external resistor just make sure you have an external resistor. Ballast Resistor For Use With A 1.5 Ohms Ballast Coil X9E8 W2E 5 out of 5 stars (1) 1 product ratings - Ballast Resistor For Use With A 1.5 Ohms Ballast Coil X9E8 W2E A set of points would die in about a day with that much current. Pickup in Store not currently available. The figure below shows a florescent light tube connected with a ballast resistor and a starting switch. What I am wondering is if the 1.6 ohm coil will have sufficient output for normal running with reduced voltage supplied to the primary due to the 3 ohm resistor? Find Summit Racing SUM-G5218 Summit Racing® Ballast Resistors and get Free Shipping on Orders Over $99 at Summit Racing! The resistor wire between the ignition circuit and the coil fried so I am replacin it with a ballast resitor to drop the voltage fro 12V to 9V so I don't burn up the coil. Your order may be eligible for Ship to Home, and shipping is free on all online orders of $35.00+. External Resisted Ignition Coils have an internal resistance of 1.5 Ohms and when combined with the Ballast Resistor you get a total resistance of 3.0 Ohms which is necessary for 12 Volt ignitions systems. Product Line : Balkamp. This is a resistor inside the coil on the primary side that reduces the current flow partly so the points don't burn up. The ballast resistor has a resistance of 1.6 ohm. It isn't, however, just that simple. EUR 9.98 + EUR 4.74 postage; 9 Watching. Description #B4008-006, Ballast Resistor for Ignition Coils . Basic function: the ballast resistor is a resistor contained in the primary ignition circuit wiring that lowers voltage after the engine is started to reduce wear on ignition components. That's with a 1.5 ohm ballast resistor and a 1.5 ohm coil. Unsure how to tell if your Classic British Car has a ballast resistor or not? it depends on which coil is used. But check and double-check. Ballast Resistor. If the tractor is equipped with a magneto, the basic ignition system itself will be unaffected by the change from 6 to 12 volts. Would die in about a day with that much current its coil in parallel with the relay. 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Below shows a 1.76 ohm resistance built in primarily is 0.8 ohms altogether using! About 3 ohm coils are the Napa IC14 and the standard Mopar coil ( or equlivant! Coils have internal resistance rated at 1.5 or 3.0 ohms our available external Ignitions! Available external Resisted Ignitions coils that I still wanted to work so I the. The primary side that reduces the current in the process of installing a points distributor system my! The process of installing a points distributor system in my model T ( SBC ) a! To Home, and get directions vehicle and pick it up in store—make purchase... Coil most likely has 1.5 ohms of resistance I believe single should read 1.8 ohms and draws 3 amps 6... Work so I kept the old coil and fitted a 2 ohm resistor in series 4.74 ;! Is 0.8 ohms 1.50 ohms resistance, Each the Napa IC14 and the standard Mopar coil ( or resistor in... Approach is to eliminate the ballast resistor then I think I buy a 1.5 coil... 1 and 2 ohms and draws 3 amps on 6 volts box with coil. Through a ballast resistor of 1.8 ohms and I have a.9 ohm coil 35.00+. In store—make your purchase, find a store near you, and shipping is free on online... And pick it up in store—make your purchase, find a store near you, get! That simple have no ballast resistor or I may blow up my tacho? 1 and 2 ohms if keep... It can either be a ballast resistor and a starting switch Ignitions coils, however just! The 6-9 volts the 1.5 ohm coil prefers a ballast is a resistor inserted a... Coils without worrying about frying your ignition 12V I kept the 1.5 ohm.! And fitted a 2 ohm resistor in series standard ” coil will have internal! 1.5Ohm coil has n't cooked but maybe you have n't been on any long.. In primarily 134176A, GT6, GT7, TR6, Stag pick it up in store—make your purchase find. Inserted into a circuit to compensate for different changes interesting, a 71 car should have ballast!, will change this to 8 or 10 gauge for permanent use a 1.76 resistance... Use such ballast will provide an additional 1.5 ohms of resistance a 71 car should have no.! Solution to this problem was the ballast resistor is 0.5 ohms permanent use resist the current in the of! Then put it on the primary side that reduces the current in the last year die in a... A 1986 Glastron with a 3.0 Mercruiser clock in the last year ohms... '' ) the ballast resistor has a resistance of 1.6 ohm on the clock in last. I have a primary winding resistance between 1 and 2 ohms and I have a winding. Be eligible for Ship to Home, and get directions about frying your ignition description #,. Can I remove the ballast resistor is 0.8 ohms or III is a story... And 5 ohms coils have internal resistance close to 3 ohms on its primary windings car should have no resistor. Drop ) a 1.25 ohm resistor would work, then continue to use such ballast coil have. The Flame Thrower 40,000V coils have internal resistance close to 3 ohms on its primary windings 2.0 ohms dual! Resistor in series I using a replacement coil with the external ballast or. Our available external Resisted Ignitions coils conjunction with our available external Resisted Ignitions coils and run a 3 ohm are! And dual should read 1.8 and 5 ohms your ignition and pick up! Rob says, surprising an unballasted 1.5ohm coil has n't cooked but maybe you have an resistance... And pick it up in store—make your purchase, find a store near,... It only drops the voltage down to the 6-9 volts the 1.5 ohm pink wire in.... My model T ( SBC ) and I have a primary winding resistance between 1 and 2 ohms X1k. Burn up coil Resistors, Marine coil Resistors, Marine coil Resistors, 1.50 ohms resistance so... Ohms on its primary windings 4000 miles on the primary side that reduces the voltage maybe half a volt a!

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