I recently converted my Edelbrock Performer RPM Air-Gap intake manifold to multi-port fuel injection, then I fabricated a very nice custom 60-2 crank trigger kit positioned behind the vibration damper. I liked the idea of getting rid of my CD ignition box, single coil, distributor & ignition module, so I upgraded to DIS (Distributorless Ignition System). Holley's DIS Kit outputs more spark energy than high-power single racing coils (for forced-induction, nitrous oxide or high compression engines). I fabricated a custom stainless steel plate to mount the DIS coil pack, but it's hardly noticeable in the picture.
(Individual Coil Dimensions: 4¼" length, 2⅝" width, 3⅜" height)
http://forums.holley.com/showthread....3038#post33038 (Detailed Crank Trigger/DIS Conversion Information & Reasoning)
https://forums.holley.com/showthread...-great-upgrade! (Distributor vs. DIS/CNP/COP Ignition Timing Difference & Feel)
After a successful test run with DIS, I decided, what remained of my Mallory Hall-Effect EFI billet distributor (#9556704), needed to serve more purpose than just an oil pump drive. So I converted the distributor to a Hall-Effect "cam sync unit" (for sequential EFI operation), by removing seven of the eight shutter blades, and fabricating a aluminum plate to cap-off what was left of my previous distributor. I later upgraded the digital vane sensor to a Cherry VN101504 (6" x 24 AWG, 3-wire harness & -40°F − 302°F operating temperature). I used the MSD 34019 Super Conductor bulk wire roll and reused all my plug boots. The bulk ignition wire & terminal kit options are available separately (LINK - Page 3 & 4).
My engine definitely seems to run a little smoother under sequential EFI control BUT nothing very significant.
The power & driveability of my 508 BBF is just incredible. Modern EFI simply makes this truck a pleasure to drive.
Here are two pictures of the DIS coil pack and my cam sync/oil pump drive unit:
While I was at it, I made a nice adjustable spark plug wire hold-down to support the center span of wires (due to the missing distributor cap, rotor & adapter):
Autotrend EFI sells this cap to cover an Accel dual sync distributor and
Mallory/Edelbrock Hall-Effect EFI distributors when it's converted to DIS.
This allows you to retain that raised lip on the housing (I milled mine off):
(Individual Coil Dimensions: 4¼" length, 2⅝" width, 3⅜" height)
http://forums.holley.com/showthread....3038#post33038 (Detailed Crank Trigger/DIS Conversion Information & Reasoning)
https://forums.holley.com/showthread...-great-upgrade! (Distributor vs. DIS/CNP/COP Ignition Timing Difference & Feel)
After a successful test run with DIS, I decided, what remained of my Mallory Hall-Effect EFI billet distributor (#9556704), needed to serve more purpose than just an oil pump drive. So I converted the distributor to a Hall-Effect "cam sync unit" (for sequential EFI operation), by removing seven of the eight shutter blades, and fabricating a aluminum plate to cap-off what was left of my previous distributor. I later upgraded the digital vane sensor to a Cherry VN101504 (6" x 24 AWG, 3-wire harness & -40°F − 302°F operating temperature). I used the MSD 34019 Super Conductor bulk wire roll and reused all my plug boots. The bulk ignition wire & terminal kit options are available separately (LINK - Page 3 & 4).
My engine definitely seems to run a little smoother under sequential EFI control BUT nothing very significant.
The power & driveability of my 508 BBF is just incredible. Modern EFI simply makes this truck a pleasure to drive.
Here are two pictures of the DIS coil pack and my cam sync/oil pump drive unit:
While I was at it, I made a nice adjustable spark plug wire hold-down to support the center span of wires (due to the missing distributor cap, rotor & adapter):
Autotrend EFI sells this cap to cover an Accel dual sync distributor and
Mallory/Edelbrock Hall-Effect EFI distributors when it's converted to DIS.
This allows you to retain that raised lip on the housing (I milled mine off):
Originally posted by Danny Cabral
Originally posted by Danny Cabral
Originally posted by Danny Cabral
Originally posted by 8.6 Magnetic Crank Pickup - Holley EFI Wiring Manual
Originally posted by Danny Cabral
Originally posted by Electromotive Engine Controls
Originally posted by Motec - About Ignition Systems
Originally posted by Gill Instruments
Originally posted by Danny Cabral