John Smith
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- Jan 17, 2010
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I'm finally getting ready to clean up the engine compartment on this 84 2.8L and have decided to remove the Stock Dizz now. One of the reasons i was putting it off was to make a decision about what coil, "spark box", and locations of all of it along with wiring harness etc.
I have been aware of the use of an HEI module along with the stock TFI coil and it seems to me to be the best of all worlds for high voltage/reliability when using the TFI coil and straight 12volts. I have found a few write-ups about this from former days. and would like to know if any here have done this successfully for a 2.8L. I have a hunch an aftermarket "duraspark" blue box may not last a long up against a TFI coil and the availability of OEM Ford Duraspark II boxes are not as cheap as an HEI module for sure..so I'm leaning that way. If any here have done this and can address the pros and cons i would appreciate it. Also the part number of the most desirable 4 pin module would be kewl as well..as some are different dwells i understand...
regards..
The HEI ignition wired up inside the Duraspark case:
http://www.fordmuscleforums.com/ignition-articles/492810-tricky-trick-hei-module-inside-duraspark-case.html
"One popular and cheap ignition option for Ford enthusiasts is using a GM 4-pin HEI ignition module to trigger the coil. Though it is considered high blasphemy by some in the Ford community, the idea is almost as old as the technology itself. Just do an internet search. It is all done while retaining the Duraspark distributor and using any number of aftermarket coils. Many use the later Ford TFI coils. The HEI runs off of 12 volts, and when using an aftermarket or TFI coil there is no ballast-resistor needed. Users of this setup tell tales of a stronger spark, better starting, and smoother idle. The big plus is that the HEI module costs 15-20 bucks and a spare can sit in your glove box."
Seems like something to consider...and since the first thing people recommend when anyone has trouble with the stock EECIV system is to "duraspark it"...a complete consideration of these options would be in order along with the reasoning behind it..and since economy is always good with a carb..the hotter spark from A TFI coil would be desired as well for better ign and longer plug life...
http://www.therangerstation.com/forums/album.php?albumid=1555&pictureid=7801
I have been aware of the use of an HEI module along with the stock TFI coil and it seems to me to be the best of all worlds for high voltage/reliability when using the TFI coil and straight 12volts. I have found a few write-ups about this from former days. and would like to know if any here have done this successfully for a 2.8L. I have a hunch an aftermarket "duraspark" blue box may not last a long up against a TFI coil and the availability of OEM Ford Duraspark II boxes are not as cheap as an HEI module for sure..so I'm leaning that way. If any here have done this and can address the pros and cons i would appreciate it. Also the part number of the most desirable 4 pin module would be kewl as well..as some are different dwells i understand...
regards..
The HEI ignition wired up inside the Duraspark case:
http://www.fordmuscleforums.com/ignition-articles/492810-tricky-trick-hei-module-inside-duraspark-case.html
"One popular and cheap ignition option for Ford enthusiasts is using a GM 4-pin HEI ignition module to trigger the coil. Though it is considered high blasphemy by some in the Ford community, the idea is almost as old as the technology itself. Just do an internet search. It is all done while retaining the Duraspark distributor and using any number of aftermarket coils. Many use the later Ford TFI coils. The HEI runs off of 12 volts, and when using an aftermarket or TFI coil there is no ballast-resistor needed. Users of this setup tell tales of a stronger spark, better starting, and smoother idle. The big plus is that the HEI module costs 15-20 bucks and a spare can sit in your glove box."
Seems like something to consider...and since the first thing people recommend when anyone has trouble with the stock EECIV system is to "duraspark it"...a complete consideration of these options would be in order along with the reasoning behind it..and since economy is always good with a carb..the hotter spark from A TFI coil would be desired as well for better ign and longer plug life...
http://www.therangerstation.com/forums/album.php?albumid=1555&pictureid=7801
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