The Ford Barn - View Single Post - Richporter FD06?Is this a y-block dizzy?

GREENBIRD56 · 01-02-2014, 03:44 PM

I believe someone mentioned (earlier in the thread) - the need for a wiring schematic, especially when you are using the Duraspark in an older model vehicle.

This shows how the system is arranged - color coding etc. - and my preferred wiring set-up, which is to use a removable (plug-in) Bosch lighting relay to provide separate power to the coil and control box. As originally constructed, the '75 and up vehicles used a 1.4 OHM ballast resistor wire going to the coil - and full voltage was delivered to the control module. The N.O. lighting relays provide power on both output legs when energized - there are others so beware. The Duraspark had a specific coil and a snap on connector cap but other arrangements can be used.

You don't have to connect the white wire to the starter solenoid for the system to work. But if you do - energizing the solenoid will then notify the Ford design controllers that starting is underway and it will retard the spark by about 6 degrees. A nice feature in cold climates.

The system ground was routed by Ford back to the controller and grounded there to the fender. It caused some service problems and it is best that the distributor end of the arrangement has an engine block ground - as well as the black wire back to the controller.

Ford design controllers use the same "dwell" to charge the coil as the single point distributor, and the coil resistance is limited to a minimum of about 1.5 OHMs. This basically limits the ignition system to the same performance as a basic single point ignition when running. Other controllers are adaptable - MSD - GM - MOPAR and once you have the trigger installed - a lot is possible.

The life of the Ford/Motorcraft controllers has been an issue. It needs to be mounted in a cool convenient location - not adjacent to the exhaust manifold. You want easy access to the controller - and to graft the Ford plug ends into your wiring system - because their service life is spotty......some last forever - and some for a year or two. Carry a spare - they are cheap - and can be changed pretty easily with screwdriver in a few minutes. Serviceability can be maximized with a little forethought.

01-02-2014, 03:44 PM	#17
GREENBIRD56 Member Join Date: May 2010 Location: Tucson, Arizona Posts: 55	Re: Richporter FD06?Is this a y-block dizzy? I believe someone mentioned (earlier in the thread) - the need for a wiring schematic, especially when you are using the Duraspark in an older model vehicle. This shows how the system is arranged - color coding etc. - and my preferred wiring set-up, which is to use a removable (plug-in) Bosch lighting relay to provide separate power to the coil and control box. As originally constructed, the '75 and up vehicles used a 1.4 OHM ballast resistor wire going to the coil - and full voltage was delivered to the control module. The N.O. lighting relays provide power on both output legs when energized - there are others so beware. The Duraspark had a specific coil and a snap on connector cap but other arrangements can be used. You don't have to connect the white wire to the starter solenoid for the system to work. But if you do - energizing the solenoid will then notify the Ford design controllers that starting is underway and it will retard the spark by about 6 degrees. A nice feature in cold climates. The system ground was routed by Ford back to the controller and grounded there to the fender. It caused some service problems and it is best that the distributor end of the arrangement has an engine block ground - as well as the black wire back to the controller. Ford design controllers use the same "dwell" to charge the coil as the single point distributor, and the coil resistance is limited to a minimum of about 1.5 OHMs. This basically limits the ignition system to the same performance as a basic single point ignition when running. Other controllers are adaptable - MSD - GM - MOPAR and once you have the trigger installed - a lot is possible. The life of the Ford/Motorcraft controllers has been an issue. It needs to be mounted in a cool convenient location - not adjacent to the exhaust manifold. You want easy access to the controller - and to graft the Ford plug ends into your wiring system - because their service life is spotty......some last forever - and some for a year or two. Carry a spare - they are cheap - and can be changed pretty easily with screwdriver in a few minutes. Serviceability can be maximized with a little forethought.