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target 
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Joined: Jan/20/2010 Status: Offline Points: 1353 |
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 Topic: CoilPosted: Apr/01/2020 at 12:44pm |
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I have a chrome Mallory coil from another project. Says use with Mallory unilite and MBI distributors. Says not to use with aftermarket high energy or CD systems. Will it work with points or any other trigger? Part number 29219.
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BassBoat
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Joined: Aug/29/2008 Status: Offline Points: 1719 |
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Posted: Apr/02/2020 at 3:17pm |
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since no one gave a specific answer, I will give a general answer. Some systems draw too much current and will overheat the coil. An example is the old Accel "Super Coil". It has high turns ratio, draws a lot of current, and requires both the original resistance wire in the wiring harness AND an external balance resistor, or two external resistors if the factory resistance wire has been removed. previous owner of my car didn't know if he had resistance wire, so he ran two external resistors. Car actually worked fine, but only had about 5 volts to the coil. You want about 8V with a typical point distributor. So hook it up with one resistor, either the factory harness or an external. If you have an external ballast, wire it up too. Then check the voltage at the coil with the engine running. Again, even with 5 volts car will probably start and run, but it will start and run better with 8. good luck
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tufcj
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Posted: Apr/02/2020 at 4:15pm |
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From the Holley web Site: FRM 33972 Created 04/16 Canister Style Coil PN 29219 Universal, 12-volt coil features an oil-filled design and arc resistant alkyd top for superior performance, insulation and cooling. This coil is specifically designed to deliver optimum performance when used with: - Mallory UNILITE® Distributors - Magnetic Breakerless Ignitions - Mallory Point-type distributors Note: Mallory has different coils with different resistances for a variety of applications. The major factor that determines the need of a ballast resistor is the coil “Primary Resistance”. This is very important to consider when buying a coil. Please see our coil guidelines below. POINTS TYPE DISTRIBUTORS When using with a Mallory Point-type Distributors an additional ballast resistance of 0.5-1.0 Ohms in addition to the existing resistance of this coil for a total of 2-4 Ohms should be used. The ballast can be either the existing vehicle ballast resistor or Loom resistor wire. We recommend MSD PN 8214 which is 0.8 Ohms. UNILITE/ BREAKERLESS DISTRIBUTORS When using with a Mallory Unilite® or Magnetic Breakerless Distributors in a performance application a ballast resistor is not needed. However, for applications that are primarily street-driven, reliability improves if the MSD PN 8214 is added to the coil + circuit. Note: Not for use with Mallory HYFIRE® Electronic Ignition Control or any other high energy, inductive storage or capacitive discharge ignition system. Bob tufcj
Edited by tufcj - Apr/02/2020 at 4:17pm |
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