Mallory Ignition 75610 User Manual
DIS 8
Installation and
VER11
Instruction Manual
For Accel DFI part number: 75610
DIS 8
Table of Contents
Parts Included.......................................................................... 2
Introduction ............................................................................. 3
Installation............................................................................... 4
Setting Custom Firing Order ..................................................... 9
Sequence Firing Order............................................................ 11
DIS 8 With Accel DFI GEN 7/THRUSTER – Dual Sync Dist. .......12
DIS 8 With Accel DFI GEN 7/THRUSTER – Hall Effect Sensors.15
DIS 8 With Accel DFI GEN 7/THRUSTER – IPU/Hall Effect .......16
Handheld Controller ............................................................. 167
Accessories .......................................................................... 199
Harness Schematic Overview ................................................. 21
Handheld Controller Menu Flow Flowchart ............................. 22
DIS 8 Trouble Shooting ......................................................................23
Warranty – Cautions/Warnings .......................................................25
Parts Included
1- DIS Module 1-Coil Input Harness
1- Handheld Controller 1-Coil Output Harness
1-Handheld Controller Cable 1-Accessories Harness
1- Module Power Harness 1- MAP Sensor Harness
1- Coil Power Harness
2
DIS 8
Introduction
Congratulations on the purchase of your new Accel DFI Digital Ignition System (DIS 8).
This Multi-Strike system uses the latest available technology to offer unparalleled
accuracy, repeatability, and reliability.
The DIS 8 unit operates multiple coil applications using one of two triggering
configurations: 8-Channel Mode or Cam/Crank Mode. The DIS 8 is also capable of
timing retard and rev limit functions.
Included with the DIS 8 is a handheld controller which will allow you to have control
directly from the driver’s seat.
Cautions and Warnings: Refer to Page 25
8 Channel Mode:
In the 8 channel mode, a trigger signal (Sink signal-ground) on any input channel will
result in a coil firing on the corresponding output channel. This is true whether or not
the unit is in the waste spark or Coil-Per-Cylinder (CPC) mode. The firing order set in
the handheld controller is ignored in 8 channel mode, since that is determined by the
input triggering. The coil inputs and outputs must be wired in the correct engine firing
order. NOTE: The cylinder selection must match the actual engine configuration so
that the RPM limiters and timing retards will work correctly.
The vehicles stock ECM can trigger the DIS 8 in 8 channel mode. The trigger signal is
sent to the Coil Input Harness. The DIS 8 then sends it to corresponding coil output
harness lead witch is connected to the coil.
Cam/Crank Mode:
In the Cam/Crank mode, channel 1 input is the Electronic Spark Timing (EST) trigger,
and channel 2 input is the cam position trigger. The DIS 8 uses the EST and Cam
inputs and processes the inputs into 8 separate outputs allowing the use of coil-percylinder operation. The firing order must be set with the handheld controller in
Cam/Crank mode. The crank position trigger / EST / Points Trigger signal is a rising
edge (low to high), and the cam position is a falling edge (high-to-low) transition.
NOTE CAM Sensor Must be a Hall Effect (12 volt square wave signal)
Waste Spark Mode
In this mode a coil pack is normally used, but individual coils may be used firing two
coils at once. In the waste spark mode one cylinder will fire on the compression stroke,
and the other coil will fire on the exhaust stroke. When using coil packs, a typical V8
engine will use four twin tower coils or two Ford EDIS style coils (ACCEL part
#140018). When using individual coils, the DIS 8 will fire two coils at once. The coils
must be paired with the proper firing order.
Typical Chevy Firing order 18436572 Typical Ford Firing order 13726548
Cylinder # 1 gets paired to cylinder # 6 Cylinder # 1 gets paired to cylinder # 6
Cylinder # 3 gets paired to cylinder # 2 Cylinder # 3 gets paired to cylinder # 5
Cylinder # 5 gets paired to cylinder # 8 Cylinder # 4 gets paired to cylinder # 7
Cylinder # 7 gets paired to cylinder # 4 Cylinder # 2 gets paired to cylinder # 8
3
DIS 8
Installation
Read over this entire document before beginning installation!
The DIS 8 may be located inside the car or in the engine compartment. If you are
mounting the controller in the engine compartment, select a location with minimal
exposure to water as a safeguard. When mounting the unit in the inside of the car find
a well ventilated area to reduce heat created by unit. Route the wiring well away from
any moving parts or extreme heat sources like header pipes, etc. Connect the harness
as per the diagrams in this manual.
Power Input Harness
The Power to the DIS 8 module is supplied through the 4 pin connector.
Battery connection should be made directly to Battery.
Do not connect battery positive to alternator.
4
DIS 8
8 Channel Mode Wiring Harness
In the 8 Channel Mode the DIS 8 is connected inline to the coils. The coil negative
trigger signal from the ECM is sent to the DIS 8 coil Input harness and amplified, and
then sent to the negative side of the coil.
8 Channel wiring overview
DIS 8 module used with factory ECM.
5
DIS 8
Coil Input Harness
PIN
A Coil 1 Input Purple
B Coil 2 Input Red/White
C Coil 3 Input Blue
D Coil 4 Input Green/White
E Switched Ignition
F Not Used
G Coil 5 Input Green
H Coil 6 Input Blue/White
J Coil 7 Input Red
K Coil 8 Input Purple/White
CHANNEL WIRE COLOR
Pink
6
DIS 8
Coil Output Harness
In the 8 channel mode, a trigger signal on any input channel will result in a coil firing
on the corresponding output channel.
PIN
A Coil 1 Output
B Coil 2 Output Red/White
C Coil 3 Output
D Coil 4 Output Green/White
E Coil Positive Pink/Black
F Coil Positive Pink/Black
G Coil 5 Output
H Coil 6 Output Blue/White
J Coil 7 Output
K Coil 8 Output Purple/White
CHANNEL WIRE COLOR
Purple
Blue
Green
Red
Do Not touch output/primary coil wires with key ON or while the
engine is running. (Primary and Secondary outputs contain High
Voltage that can be lethal or can cause severe injuries)
7
DIS 8
CAM/CRANK Mode Wiring Harness
In the Crank/Cam mode the DIS 8 receives a Crank (EST) and a Cam input. The DIS 8
then processes the input signals into 8 separate output signals. The signals are sent to
the negative side of the coils in the order set by the firing order in the handheld
controller. The crank position trigger / EST / Points Trigger signal is a rising edge (low–
to-high), and the cam position is a falling edge (high-to-low) transition.
NOTE CAM Sensor Must be a Hall Effect (12 volt square wave signal open
collector)
Coil Input Harness
PIN
A 1 Crank (EST) Input
B 2 Cam Input Red/White
C Not Used Blue
D Not Used Green/White
E Switched Ignition Pink
F Not Used
G Not Used Green
H Not Used Blue/White
J Not Used Red
K Not Used Purple/White
CHANNEL WIRE COLOR
Purple
8
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