Post by bullitt99 on Oct 6, 2009 18:48:33 GMT -5
This was posted on another forum & would make sense if you have issues with your electronic ignitions
I did it this way to maintain stock appearance and loom connection. There's a jumper wire hidden behind the ballast. To convert back to Mopar ignition in an emergency I can simply cut the wire and plug in a Mopar box.
The module backs onto the Mopar heat sink with a layer of heat conducting grease inbetween just to be on the safe side. The Mallory module was about $25 but you can get unbranded ones as cheap as $17.
The advantage is that the HEI module has current modulation instead of being just a big switch.
Current modulation powers up the coil only until the coil is saturated, then it pulls back on the current. That way it doesn't need a ballast resistor to avoid overheating itself or the coil and without a resistor the coil can charge to higher voltage and faster.
Basically, you can run any coil with it and any coil you put on there will run at it's optimum.
With a low impedence performance coil it can deliver 50 + kv at the plug.
I already had my Accel coil, but a good budget coil to use with the HEI is the Ford TFI coil - it's one of those "E-core" things.
I did it this way to maintain stock appearance and loom connection. There's a jumper wire hidden behind the ballast. To convert back to Mopar ignition in an emergency I can simply cut the wire and plug in a Mopar box.
The module backs onto the Mopar heat sink with a layer of heat conducting grease inbetween just to be on the safe side. The Mallory module was about $25 but you can get unbranded ones as cheap as $17.
The advantage is that the HEI module has current modulation instead of being just a big switch.
Current modulation powers up the coil only until the coil is saturated, then it pulls back on the current. That way it doesn't need a ballast resistor to avoid overheating itself or the coil and without a resistor the coil can charge to higher voltage and faster.
Basically, you can run any coil with it and any coil you put on there will run at it's optimum.
With a low impedence performance coil it can deliver 50 + kv at the plug.
I already had my Accel coil, but a good budget coil to use with the HEI is the Ford TFI coil - it's one of those "E-core" things.
