FuelTech FTSPARK User manual

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FTSPARK
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OWNER’S MANUAL
MANUAL DE USUARIO |MANUAL DO USUÁRIO
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FTSPARK
1. Index
2. Presentation.......................................................................................................... 7
3. Warranty terms...................................................................................................... 7
4. Characteristics ...................................................................................................... 8
5. Installation ............................................................................................................. 9
5.1 Mounting......................................................................................................... 9
5.2 Power supply .................................................................................................. 9
5.3 Harness connections table............................................................................... 9
5.4 Connection diagrams..................................................................................... 15
5.5 Wiring harness installation .............................................................................. 21
5.6 Wiring harness positioning ............................................................................. 21
5.7 Coils ............................................................................................................. 21
5.8 Spark plug wires............................................................................................ 22
5.9 Spark plugs................................................................................................... 22
6. FTSPARK control................................................................................................. 22
6.1 Individual triggering ........................................................................................ 22
6.2 Serial bus triggering ....................................................................................... 22
6.3 Input signal trigger edge................................................................................. 23
6.4 CAN network................................................................................................. 23
6.5 Energy level selection .................................................................................... 23
6.6 Wasted spark operation (750mJ Only)............................................................ 24
6.7 Safety Features ............................................................................................. 25
6.8 Ignition delay time .......................................................................................... 25
7. Recalibrating ignition and fuel map........................................................................ 25
8. LED operation indicator........................................................................................ 25
9. FTSPARK settings and operation.......................................................................... 26
9.1 FTSPARK settings ......................................................................................... 26
9.2 Ignition energy ............................................................................................... 26
9.3 Using two FTSPARK units in the same installation: .......................................... 27
9.4 Setup on engines with sequential ignition........................................................ 27
9.5 Datalogger channels...................................................................................... 29
9.6 Status Events Information............................................................................... 29
10. FTCAN 2.0 protocol............................................................................................. 30
10.1 Physical layer .............................................................................................. 30
10.2 Features...................................................................................................... 30
10.3 IDENTIFICATION .......................................................................................... 30
10.4 DATA FIELD................................................................................................. 31
10.5 Attachments................................................................................................ 32
10.3 IDENTIFICATION .......................................................................................... 26

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FTSPARK
2. Presentation
FTSPARK is a high energy capacitive ignition module that meets the highest levels of spark energy demand,
being able to generate a spark with 750mJ (mJ = mili Joules guaranteed minimum energy, can reach up to
850mJ) or 1500mJ (FTSPARK EXTREME - guaranteed minimum energy, can reach up to 1700mJ) and it is
capable of discharging with currents up to 140Amps and 475V in the primary coil circuit. With these features,
the FTSPARK generates a spark with approximately 5 times more energy and 10 times more current compared
to a SparkPRO, ensuring a complete combustion in any condition, especially in extremely rich air fuel ratios.
FTSPARK Differentials:
- Compatible with rotary engines
- ProgrammableenergyleveloverCANbusoranaloginputforenergylevelconguration
- 475V in the primary coil circuit, helps avoiding electromagnetic noise in the system
- Up to 140Amps in the primary coil circuit using FuelTech CDI Racing Ignition Coil
- Up to 175Amps in the primary coil circuit using FuelTech CDI Racing Ignition Coil and FTSPARK 1500mJ
(FTSPARK EXTREME)
- CAN communication with FuelTech Power FT product line, for diagnostics and data logging
- Anodized aluminum housing
- Automotive connector with gold-plated terminals
- Serial bus (1 wire) allows the use of only one ECU output to trigger all FTSPARK ignition outputs
3. Warranty terms
The use of this equipment implies in total accordance with the terms described in this manual and exempts
the manufacturer from any responsibility regarding product misuse.
This product must be installed and tuned by specialized auto shops or professionals with
experience on engine tuning.
The oversight of any of the warnings or precautions described in this manual can cause engine damage and
lead to warranty void of this product warranty.
Before starting any electrical installation, disconnect the battery.
Thisproductisnotcertiedforaeronauticpurposesoranyyingvehicles,asithasnotbeendesignedfor
such applications.
Insomecountrieswhereanannualinspectionofvehiclesisenforced,nomodicationintheOEMECUis
permitted. Be informed about local laws and regulations prior to the product installation.
Important warning for proper installation of this product:
Always remove and insulate unused wires. NEVER roll up excess wiring as this may
create an antenna that captures electromagnetic interference that may generate
product malfunction.
Limited Warranty
This product warranty is limited to one year from the purchase date, only covering manufacturing defects and
requiring purchase invoice presentation. Damages caused by misuse of the unit are not covered by the warranty.
Warranty void analysis is done exclusively by FuelTech technical support team.
Manual Version 2.3 – November/2021
WARNING:
Warranty seal violation results in product warranty void.

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FTSPARK
4. Characteristics
- Dimensions: 4.92 x 6.0 x 1.9 in.;
- Weight: 32.8 oz;
- Body: Anodized aluminum and plastic;
- Voltage supply required for full power: 14-26V. Minimum voltage during cranking 8V;
- Maximum operating frequency: 670 Hz;
Specications **600mJ 750mJ 1500mJ
Minimum energy 600mJ 750mJ 1500mJ
Maximum Energy 680mJ 850mJ 1700mJ
Primary coil current 125A 140A 175A
Spark plug (non-resistive) current 1.70A 1.95A 2.50A
Spark duration 300uS 330uS 400uS
** Previous Version
Wiring Harness
Wire harness length: 59 in. at power outputs
connected to coils and 118 in. at the other cables.
Cylinders Sequential Wasted spark / 2 Stroke
4 22.500 RPM 11.250 RPM
4 (EXTREME) 11.250 RPM NOT COMPATIBLE
5 15.000 RPM NOT COMPATIBLE
6 15.000 RPM NOT COMPATIBLE
8 11.250 RPM NOT COMPATIBLE
8 (EXTREME) 11.250 RPM NOT COMPATIBLE
Rotors Rotary Units
2 11.250 RPM 1 x FTSPARK-4
3 15.000 RPM 2 x FTSPARK-4
4 11.250 RPM 2 x FTSPARK-4
Maximum rotary engine speed (with 16V battery)
Maximum piston engine speed (with 16V battery)
FTSPARK-4 (4 Coils) 20A @ 10000RPM
FTSPARK-6 (6 Coils) 30A @ 10000RPM
FTSPARK-8 (8 Coils) 40A @ 10000RPM
FTSPARK-4 EXTREME (4 Coils) 1500mJ 40A @ 10000RPM
FTSPARK-8 EXTREME (8 Coils) 1500mJ (using 2
FTSPARK ignition module)
FTSPARK(A) - 40A @ 10000RPM
FTSPARK(B) - 40A @ 10000RPM
FTSPARK-4 (4 Coils): 23 Wires
FTSPARK-6 (6 Coils): 29 Wires
FTSPARK-8 (8 Coils): 35 Wires
FTSPARK-8 EXTREME (4 Coils): 21 Wires
FTSPARK-8 EXTREME (8 Coils): 42 Wires
IMPORTANT
FTSPARK EXTREME is not compatible with rotary engines.
Maximum Current Consumption

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FTSPARK
5. Installation
Capacitive ignition systems require special installation care for correct operation. The vehicle’s electrical
system suffers high current and voltage demand from the FTSPARK ignition system. It is essential to follow
the installation instructions in this manual.
NOTE
If the LOG shows energy drop, it’s necessary to check the harness and wires that go to
the battery. And on situations where the FTSPARK is far from the battery, it’s mandatory
to increase wire gauge.
A good solution is to make a secondary power terminal from the battery, using 2 AWG cable.
5.1 Mounting
Mounting must be done using the rubber cushions. Always use the 4 spots available on the FTSPARK body.
The FTSPARK must be installed as far away from heating sources as possible (such as
turbochargers and exhaust manifolds) because it generates a lot of heat by itself.
If installed on the engine bay, it must be mounted where air ows best.
5.2 Power supply
Never Invert the FTSPARK power connections.
The FTSPARK power supply, as well as all other electric loads of the car, must pass through the master switch
for safety reasons and the master switch must NEVER interrupt the battery ground, always the hot terminal.
IMPORTANT
- Always connect the power supply harness directly to the battery with a 50A fuse
for each FTSPARK BOX.
- Do not use the chassis or engine block to ground the FTSPARK. Use the negative
battery terminal.
To turn the FTSPARK on and off use a 12V switch connected to the analog input on pin 12.
Do not connect the FTSPARK to a voltage booster, it demands current peaks of more than 100A and will
cause the system to malfunction.
Do not use FTSPARK on systems with power supply voltage over 26V.
5.3 Harness connections table
750mJ connection table
Pin Wire Label Function
1 Orange COIL A (+)
Coil primary output. High voltage (Positive side)
2 Orange COIL B (+)
3 Orange COIL C (+)
4 Orange COIL D (+)
5 Orange COIL E (+)
6 Orange COIL F (+)
7 Orange COIL G (+)
8 Orange COIL H (+)

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FTSPARK
9 Yellow Energy level
Energy level selection; (ground trigger)
NOTE: If the FTSPARK is connected via the CAN network, it is not
necessary to use this wire.
10 Yellow/Blue -- Wiring harness CANBUS CAN LOW
11 Yellow/White -- Wiring harness CANBUS CAN HI
12 Red Switched 12V FTSPARK Switch ON/OFF
13 Black COIL A (-)
Coil primary output. Wire 750V. Twisted. (Power ground side)
14 Black COIL B (-)
15 Black COIL C (-)
16 Black COIL D (-)
17 Black COIL E (-)
18 Black COIL F (-)
19 Black COIL G (-)
20 Black COIL H (-)
21 Black -BAT
Power ground. Connect to battery22 Black -BAT
23 Black -BAT
24 Gray Ignition Input A Ignition trigger input A or Serial bus (1 wire)
25 Gray Ignition Input B Ignition trigger input B
26 Gray Ignition Input C Ignition trigger input C
27 Gray Ignition Input D Ignition trigger input D
28 Gray Ignition Input E Ignition trigger input E
29 Gray Ignition Input F Ignition trigger input F
30 Gray Ignition Input G Ignition trigger input G
31 Gray Ignition Input H Ignition trigger input H
32 Black GND Battery ground. Trigger signal reference
33 Red +BAT Power supply for FTSPARK. Connect to battery positive or main
switch when required.
34 Red +BAT
35 Red +BAT
FTSPARK-8 Connector Diagram
Ignition Input
#A
()Serial input
Ignition Input #B
Ignition Input #C
Ignition Input #D
Ignition Input #E
Ignition Input #F
Ignition Input #H
Ignition Input #G
Coil B
Coil C
Coil D
Coil E
Coil F
Coil H
Coil G
CANBUS
Coil A
Energy Level
CAN LOW
CAN HI
+BAT
A
-BAT
A
Battery Ground Signal Reference
()
Fus 50Ae
12V Switched (FTSPARK activa
tion)

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FTSPARK
CANBUS
CAN LOW
CAN HI
A
A
Ignition Input
#A
()Serial input
Ignition Input #B
Ignition Input #C
Ignition Input #D
Ignition Input #E
Ignition Input #F
Coil B
Coil C
Coil D
Coil E
Coil F
Coil A
Energy Level
Battery Ground (Signal Reference)
12V Switched (FTSPARK activa
tion)
FTSPARK-6 Connector Diagram
+BAT
A
-BAT
A
Fus 50Ae
A
CANBUS
CAN LOW
A
CAN HI
Ignition Input
#A
()Serial input
Ignition Input #B
Ignition Input #C
Ignition Input #D
Coil B
Coil C
Coil D
Coil A
Energy Level
Battery Ground (Signal Reference)
12V Switched (FTSPARK activa
tion)
FTSPARK-4 Connector Diagram
+BAT
A
-BAT
A
Fus 50Ae
Pin Wire Label Function
1 Orange COIL A (+)
Coil primary output. High voltage (Positive side)
2 Orange COIL B (+)
3 Orange COIL C (+)
4 Orange COIL D (+)
5 Not Used
- Not Used
6 Not Used
7 Not Used
8 Not Used
9 Yellow Energy level
Energy level selection; (ground trigger)
NOTE: If the FTSPARK is connected via the CAN network, it is not
necessary to use this wire.
10 Yellow/Blue - Wiring harness CANBUS CAN LOW
11 Yellow/White - Wiring harness CANBUS CAN HI
12 Red Switched 12V FTSPARK Switch ON/OFF
1500mJ (FTSPARK EXTREME) connection table - 4 Cylinder

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FTSPARK
13 Black COIL A (-)
Coil primary output. 750V wire. Twisted. (Power ground side)
14 Black COIL B (-)
15 Black COIL C (-)
16 Black COIL D (-)
17 Not Used
- Not Used
18 Not Used
19 Not Used
20 Not Used
21 Black -BAT
Power ground. Connect to battery22 Black -BAT
23 Black -BAT
24 Gray Ignition Input A Ignition trigger input A or Serial bus (1 wire)
25 Gray Ignition Input B Ignition trigger input B
26 Gray Ignition Input C Ignition trigger input C
27 Gray Ignition Input D Ignition trigger input D
28 Not Used
- Not Used
29 Not Used
30 Not Used
31 Not Used
32 Black GND Battery ground. Trigger signal reference
33 Red +BAT Power supply for FTSPARK. Connect to battery positive or main switch
when required..
34 Red +BAT
35 Red +BAT
A
CANBUS
CAN LOW
A
CAN HI
Ignition Input
#A
()Serial input
Ignition Input #B
Ignition Input #C
Ignition Input #D
Coil B
Coil C
Coil D
Coil A
Energy Level
Battery Ground (Signal Reference)
12V Switched (FTSPARK activa
tion)
FTSPARK-4 Connector Diagram
+BAT
A
-BAT
A
Fus 50Ae
Pin Wire Label Function
1 Orange COIL A (+)
Coil primary output. High voltage (Positive side)
2 Not Used -
3 Not Used -
4 Orange COIL D (+)
5 Not Used -
6 Orange COIL F (+)
7 Orange COIL G (+)
8 Not Used -
1500mJ (FTSPARK EXTREME) connection table - 8 Cylinder (BOX A)

10
EN
FTSPARK
9 Yellow Energy level
Energy level selection; (ground trigger)
NOTE: If the FTSPARK is connected via the CAN network, it is not
necessary to use this wire.
10 Yellow/Blue - Wiring harness CANBUS CAN LOW
11 Yellow/White - Wiring harness CANBUS CAN HI
12 Red Switched 12V FTSPARK Switch ON/OFF
13 Black COIL A (-)
Coil primary output. 750V wire. Twisted. (Power ground side)
14 Not Used -
15 Not Used -
16 Black COIL D (-)
17 Not Used -
18 Black COIL F (-)
19 Black COIL G (-)
20 Not Used -
21 Black -BAT
Power ground. Connect to battery22 Black -BAT
23 Black -BAT
24 Gray Ignition Input A Ignition trigger input A or Serial bus (1 wire)
25 Not Used - Not Used
26 Not Used - Not Used
27 Gray Ignition Input D Ignition trigger input D
28 Not Used - Not Used
29 Gray Ignition Input F Ignition trigger input F
30 Gray Ignition Input G Ignition trigger input G
31 Not Used - Not Used
32 Black GND Battery ground. Trigger signal reference
33 Red +BAT Power supply for FTSPARK. Connect to battery positive or main switch
when required.
34 Red +BAT
35 Red +BAT
Bobina H
Bobina G
Ignition Input #A
Ignition Input #D
Ignition Input #F
Battery (signal Reference)Ground
Ignition Input #G
Energy Level
CAN LO
CAN HI
COIL A
COIL D
COIL F COIL G
CANBUS
12V Switched (FTSPARK activation)
+BAT
A
-BAT
A
Fus 50Ae

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FTSPARK
1500mJ (FTSPARK EXTREME) connection table - 8 Cylinder (BOX B)
Pin Wire Label Function
1 Not Used -
Coil primary output. High voltage (Positive side)
2 Orange COIL B (+)
3 Orange COIL C (+)
4 Not Used -
5 Orange COIL E (+)
6 Not Used -
7 Not Used -
8 Orange COIL H (+)
9 Yellow Energy level
Energy level selection; (ground trigger)
NOTE: If the FTSPARK is connected via the CAN network, it is not
necessary to use this wire.
10 Yellow/Blue - Wiring harness CANBUS CAN LOW
11 Yellow/White - Wiring harness CANBUS CAN HI
12 Red Switched 12V FTSPARK Switch ON/OFF
13
14 Black COIL B (-)
Coil primary output. 750V wire. Twisted. (Power ground side)
15 Black COIL C (-)
16 Not Used -
17 Black COIL E (-)
18 Not Used -
19 Not Used -
20 Black COIL H (-)
21 Black -BAT
Power ground. Connect to battery22 Black -BAT
23 Black -BAT
24 Gray Ignition Input A Ignition trigger input A or Serial bus (1 wire)
25 Gray Ignition Input B Ignition trigger input B
26 Gray Ignition Input C Ignition trigger input C
27 Not Used -
28 Gray Ignition Input E Ignition trigger input E
29 Not Used -
30 Not Used -
31 Gray Ignition Input H Ignition trigger input H
32 Black GND Battery ground. Trigger signal reference
33 Red +BAT Power supply for FTSPARK. Connect on battery positive or when main
switch required.
34 Red +BAT
35 Red +BAT

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EN
FTSPARK
Bobina E Bobina H
Bobina G
Ignition Input #B
Ignition Input #C
Ignition Input #E Ignition Input #H
CAN LO
CAN HI
COIL B
COIL C
COIL E COILH
CANBUS
Ignition Input A#
(Serial Input)
Ba Groundttery (signal Reference)
Energy Level
12V Switched (FTSPARK activation)
+BAT
A
-BAT
A
Fus 50Ae
5.4 Connection diagrams
Individual FuelTech CDI Racing Ignition Coil
Bobina H
Bobina A
Bobina A
ABCABC ABCABC ABCABCABCABC
FTSPARK-4
A
A
ABCABC ABCABC ABCABC ABCABC
Cylinder #7 Cylinder #8Cylinder #1 Cylinder #2 Cylinder #3 Cylinder #4
Gray Output #5
Gray Output #6
Ignition input #E
Ignition input #F
Cylinder #5 Cylinder #6
Gray Output #1
Gray Output #2
Gray Output #3
Gray Output #4 Fus 50Ae
Battery Ground
(Signal Reference)
Power
Supply
12V Switched (FTSPARK activation)
Battery Ground
(Power Ground)
Ignition
Switched
Ignition input #A (Serial Input)
Ignition input #B
Ignition input #C
Ignition input #D
CAN Network Connection
Black wire
(GND from FTSPARK)
Orange wire
(+12 pulse from FTSPARK)
Coil GND
ABCABC

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EN
FTSPARK
4 Cylinder with Serial bus (Single wire - PowerFT ECU’s)
Cylinder #1 Cylinder #3 Cylinder #4
Bobina H
ABCABC ABCABC ABCABCABCABC
Cilindro #2
FTSPARK-4
Gray Output #1 A
A
CAN Network Connection
Fus 50Ae
Battery Ground
(Signal Reference)
Power
Supply
12V Switched (FTSPARK activation)
Battery Ground
(Power Ground)
Ignition
Switched
Ignition input #A (Serial Input)
Black wire
(GND from FTSPARK)
Orange wire
(+12 pulse from FTSPARK)
Coil GND
ABCABC
4 Cylinder with multiple wires
Cylinder #1 Cylinder #2 Cylinder #3 Cylinder #4
Bobina H
ABCABC ABCABC ABCABCABCABC
FTSPARK-4
Gray Output #1
Gray Output #2
Gray Output #3
Gray Output #4
A
A
Fus 50Ae
Battery Ground
(Signal Reference)
Power
Supply
12V Switched (FTSPARK activation)
Battery Ground
(Power Ground)
Ignition
Switched
Ignition input #A (Serial Input)
Ignition input #B
Ignition input #C
Ignition input #D
CAN Network Connection
Black wire
(GND from FTSPARK)
Orange wire
(+12 pulse from FTSPARK)
Coil GND
ABCABC

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EN
FTSPARK
Cylinder #1 Cylinder #2 Cylinder #3 Cylinder #4
Bobina H
ABCABC ABCABC ABCABCABCABC
FTSPARK-4
A
A
ABCABC ABCABC
Gray Output #5
Gray Output #6
Ignition input #E
Ignition input #F
Cylinder #5 Cylinder #6
Gray Output #1
Gray Output #2
Gray Output #3
Gray Output #4 Fus 50Ae
Battery Ground
(Signal Reference)
Power
Supply
12V Switched (FTSPARK activation)
Battery Ground
(Power Ground)
Ignition
Switched
Ignition input #A (Serial Input)
Ignition input #B
Ignition input #C
Ignition input #D
CAN Network Connection
Black wire
(GND from FTSPARK)
Orange wire
(+12 pulse from FTSPARK)
Coil GND
ABCABC
6 Cylinder with multiple wires
Bobina H
Bobina A
Bobina A
ABCABC ABCABC ABCABCABCABC
FTSPARK-4
A
A
ABCABC ABCABC
Cylinder #1 Cylinder #2 Cylinder #3 Cylinder #4 Cylinder #5 Cylinder #6
Gray Output #1
Fus 50Ae
Battery Ground
(Signal Reference)
Power
Supply
12V Switched (FTSPARK activation)
Battery Ground
(Power Ground)
Ignition
Switched
Ignition input #A (Serial Input)
CAN Network Connection
Black wire
(GND from FTSPARK)
Orange wire
(+12 pulse from FTSPARK)
Coil GND
ABCABC
6 Cylinder with Serial bus (Single wire - PowerFT ECU’s)

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EN
FTSPARK
FTSPARK EXTREME 8 Cylinder with multiple wires
Bobina A
Bobina A
ABCABC ABCABC ABCABC
Cylinder #1 Cylinder #4 Cylinder #6
Ignition input #A
Ignition input #D
Bobina H
Ignition input #F
Gray Ouptu #6
Bobina ABobina A
ABCABC ABCABC ABCABC
Cylinder #2 Cylinder #3 Cylinder #5
Ignition input #B
Ignition input #C
Ignition input #E
Gray Ouptu #2
Gray Ouptu #3
Gray Ouptu #5
FTSPARK-8 BOX A
FTSPARK-8 BOX B
Gray Ouptu #1
Gray Ouptu #4
ABCABC
Cylinder #7
Ignition input #G
Gray Ouptu #7
ABCABC
Cylinder #8
Ignition input #H
Gray Ouptu #8 Fus 50Ae
Power
Supply
12V Switched
(FTSPARK activation)
Battery Ground
(Power Ground)
Fus 50Ae
Battery Ground
(Signal Reference)
Power
Supply
12V Switched
(FTSPARK activation)
Battery Ground
(Power Ground)
Black wire
(GND from FTSPARK)
Orange wire
(+12 pulse from FTSPARK)
Coil GND
ABCABC
Battery Ground
(Signal Reference)
Ignition
Switch
Ignition
Switch
2 Rotors with individual coils
Bobina H
ABCABC ABCABC ABCABCABCABC
FTSPARK-4
A
A
Bobina ABobina A
Leading
rotor 1
(L1)
Trailing
rotor 1
(T1)
Leading
rotor 2
(L2)
Trailing
rotor 2
(T2)
Gray Output #1
Gray Output #2
Gray Output #3
Gray Output #4 Fus 50Ae
Battery Ground
(Signal Reference)
Power
Supply
12V Switched (FTSPARK activation)
Battery Ground
(Power Ground)
Ignition
Switched
Ignition input #A (Serial Input)
Ignition input #B
Ignition input #C
Ignition input #D
CAN Network Connection
Black wire
(GND from FTSPARK)
Orange wire
(+12 pulse from FTSPARK)
Coil GND
ABCABC

16
EN
FTSPARK
3 Rotors with individual coils - 2 FTSPARK-4 boxes
FTSPARK-8 BOX A
FTSPARK-8 BOX B
Bobina A
Leading
rotor 1
(L1)
Leading
rotor 2
(L2)
ABCABC ABCABC ABCABC
Leading
rotor 3
(L )3
Bobina A
ABCABC ABCABC ABCABC
Trailing
rotor 1
(T1)
Trailing
rotor 2
(T )2
Trailing
rotor 3
(T )3
Gray Output #1 - Learding rotor 1 (L1)
Gray Output #2 - Learding rotor 2 (L2)
Gray Output #3 - Learding rotor 3 (L3)
Fus 50Ae
Battery Ground
(Signal Reference)
Power
Supply
12V Switched
(FTSPARK activation)
Battery Ground
(Power Ground)
Ignition input #A
(Serial Input)
Ignition input #B
Ignition input #C
Gray Output #4 - Trailing rotor 1 (T1)
Gray Output #5 - Trailing rotor 2 (T2)
Gray Output #6 - Trailing rotor 3 (T3)
Ignition input #B
Ignition input #C
Ignition input #E
Fus 50Ae
Battery Ground
(Signal Reference)
Power
Supply
12V Switched
(FTSPARK activation)
Battery Ground
(Power Ground)
Black wire
(GND from FTSPARK)
Orange wire
(+12 pulse from FTSPARK)
Coil GND
ABCABC
Ignition
Switch
Ignition
Switch
Ignition pins assignment
After FTSPARK installation, follow the steps below if
changes on the ignition outputs are needed:
1 - Open the map on FTManager
2 - Click on “Sensors and calibration / Outputs”
3 - Check which gray outputs are set as ignition
outputs. If you need to change output order,
proceed to step 4
4 - Click on “Engine settings / Advanced map
options”
5 - Click on “Ignition pins assignment mode and
change it from “Automatic” to “Manual”
6 - Return to the “Sensors and calibration /
outputs” menu and change the ignition outputs
according to your installation

17
EN
FTSPARK
FTSPARK-4 managed by other aftermarket ECU’s
Bobina H
Bobina A
Bobina A
ABCABC ABCABC ABCABCABCABC
Cylinder #1 Cylinder #2 Cylinder #3 Cylinder #4
Fus 50Ae
FTSPARK-4
A
A
Battery Ground
Signal Reference()
Power
Supply
12V Switched (FTSPARK activation)
Battery Ground
(Power Ground)
Ignition
Switched
Energy level operate with minimum energy- Connected or supplying 12V will make FTSPARK
ing (0V) will make FTSPARKGround operate with maximum energy
ECUECU
Black wire
(GND from FTSPARK)
Orange wire
(+12 pulse from FTSPARK)
Coil GND
Ignition input #A
Ignition input #B
Ignition input #C
Ignition input #D
1st cylinder on firing order
2nd cylinder on firing order
3rd cylinder on firing order
4th cylinder on firing order
ABCABC
FTSPARK-6 managed by other aftermarket ECU’s
Bobina H
Bobina A
Bobina A
ABCABC ABCABC ABCABCABCABC
FTSPARK-4
A
A
ECUECU
Bobina H
ABCABC ABCABC
Cylinder #5 Cylinder #6
Cylinder #1 Cylinder #2 Cylinder #3 Cylinder #4
Fus 50Ae
Battery Ground
(Signal Reference)
Power
Supply
12V Switched (FTSPARK activation)
Battery Ground
(Power Ground)
Ignition
Switched
Ignition input #A
Ignition input #B
Ignition input #C
Ignition input #D
1st cylinder on firing order
2nd cylinder on firing order
3rd cylinder on firing order
4th cylinder on firing order
5th cylinder on firing order
6th cylinder on firing order Ignition input #F
Ignition input #E
Black wire
(GND from FTSPARK)
Orange wire
(+12 pulse from FTSPARK)
Coil GND
ABCABC
Energy level operate with minimum energy- Connected or supplying 12V will make FTSPARK
ing (0V) will make FTSPARKGround operate with maximum energy

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FTSPARK
Function Color / Wire Gauge
Ignition output (COILS) Orange AWG 16 (1.5mm2) isolation 750V
Ground ignition (COILS) Black AWG 16 (1.5mm2) isolation 750V
- BAT Black AWG 16 (1.5mm2) Isolation 300V until the splice and after AWG 10 (4.5mm2)
+ BAT Red AWG 16 (1.5mm2) Isolation 300V until the splice and after AWG 10 (4.5mm2)
Ignition input Gray AWG 20 (0.5mm2) Isolation 300V
Energy level Yellow AWG 20 (0.5mm2) Isolation 300V
12V Red AWG 20 (0.5mm2) Isolation 300V
ECU GND Black AWG 20 (0.5mm2) Isolation 300V
Electrical wire specications
5.5 Wiring harness installation
The main connector terminals must be crimped with appropriate pliers. Never solder terminals. Additional
metal will cause electrical insulation problems inside the connector.
Plan the installation to avoid wiring joints on the wiring harness. If this is unavoidable, the twisted wires should
continue to be braided in the extended part. Power outputs connected to the primary coil must use wires
with a minimum 750V insulation.
5.6 Wiring harness positioning
Never route the output cables that connect the coils (59 in. Twisted orange cables) together with the other
FTSPARK wires or other electrical wiring in the vehicle. The output cables that connect to the coils may induce
a high amount of current in surrounding wires, which can cause malfunction in other systems of the vehicle
and even damage inputs and outputs of other modules.
It’s recommended to keep a distance of at least 4” between the ignition coils wiring and all other wiring harness
parts. If this can’t be done, the wiring should be covered with braided steel wiring sleeve.
5.7 Coils
Use only coils that are approved and tested by FuelTech. The vast majority of coils designed for inductive
operation greatly reduces the performance of the FTSPARK. A good inductive coil is not guaranteed of similar
performance when used with the FTSPARK.
Some coils developed for use with OEM CDIs (nautical or motorcycle use) may damage the CDI because it
can not absorb the peak power sent by FTSPARK.
Below is the coil recommended by FuelTech.
Model Manufacturer
CDI Racing Coil FuelTech
ABC
Racing CDI FuelTech wiring diagram
A - Black wire (GND from FTSPARK)
B - Orange wire (+12 pulse from FTSPARK)
C - Coil GND
IMPORTANT
The C pin ring terminal must be bolted on the cylinder head as close as possible to
the spark plug that it’s going to re.

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FTSPARK
5.8 Spark plug wires
Do not use spark plug wires without suppression or cables with suppressor terminals only. Use of RFI (radio
frequency interference) spark plugs wire is required to ensure the proper operation of all electronic equipment
on the vehicle.
Low resistance spark plug wires with suppressive characteristics are recommended.
5.9 Spark plugs
Using non-resistive spark plugs greatly increases spark energy with capacitive ignitions, however not all
installations will function properly depending on the level of interference generated. In these cases using
resistive spark plugs is mandatory.
Keep the spark plugs clean and free of oil or grease to prevent electrical insulation problems.
Spark plugs that do not allow GAP adjustment or surface discharge are designed for use only in naturally
aspirated engines. For turbocharged engines keep the spark plug GAP always less than 0.02 in.
WARNING
Faults in the ignition system due to excessive GAP damage the coils and also
FTSPARK. When the energy released by the ignition cannot nd a path to be
dissipated, it returns to the coil or to the output of the FTSPARK output.
6. FTSPARK control
FTSPARK has two operation modes. Individual triggering (using two or more ignition outputs) or through
Serial bus (1 wire).
6.1 Individual triggering
For the Power FT product line, it is necessary to enable the FTSPARK option and select multiple outputs in
the ignition settings. For older modules, it’s necessary to select SparkPRO/3 wires option with a dwell time of
3 ms. Longer or shorter times may cause abnormal operation. The recommended voltage on input signals is
0V to low level and 5-14V to high level. Use ECU NEGATIVE (pin 32) connected to the sensor ground output
of FT600 or battery negative in other situations as a reference for these triggering signals.
6.2 Serial bus triggering
In this mode, FTSPARK operates using signals present in IGNITION INPUT A only. This mode allows more
outputs to be used in other features and reduces the quantity of harness wires. This mode is only available
when the FTSPARK is connected to an ECU of the Power FT product line.
FTSPARK EXTREME
For 8 Cylinder engines using 1500mJ (minimum energy, can reach up to 1700mJ) it’s mandatory to have the
Serial bus activation wire shared between Box A and Box B, connecting it to pin 24 in both boxes.
NOTES
- This serial protocol is not compatible with any other ECU, it’s a FuelTech exclusive
compatibility.
- The serial bus triggering can NOT be used for rotary engines.

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6.3 Input signal trigger edge
All the FTSPARK units are designed to receive FALLING TRIGGER EDGE signal from the EFI, make sure you
have your EFI settings for ignition output signal as falling edge to assure accurate ignition timing.
6.4 CAN network
The CAN network allows the ECU to select the energy level without the use of the energy level selection wire.
In addition, FTSPARK is capable of generating a series of CAN network diagnostics that are recorded by the
ECU (FuelTech FT500 or higher).
CAN Network connection
FTSPARK harness has 2 connectors for CAN network connection with FuelTech products.
1 - Female connector
2 - Male connector
3 - CAN terminator
Plug the male connector from the FTSPARK harness (2) to the female connector on the back of the ECU. In
case you have other products that are already connected to the CAN network (WB-O2 Nano, for instance),
then connect the male connector from FTSPARK to the female connector from the WB-O2 Nano. It may be
necessary to remove the CAN terminator from the WB-O2 Nano harness.
The CAN terminator (3) must remain plugged to the female connector of the last equipment on the network.
This helps to prevent noise on the CAN network.
Male connector from the FTSPARK (1) MUST NOT be plugged to the female connector on the same harness.
CAN communication will work properly with this connection.
2
1
3
6.5 Energy level selection
Energy level may be selected by two ways: ENERGY LEVEL input ground trigger (pin 9, yellow cable), or
through CAN network (values are set in the ECU’s ignition energy table).
WARNING
When the CAN network is disconnected, the user loses the option of selecting the
energy level through the MAP and visualizing all the diagnostics and measures that
the ignition module is capable of performing.
Through the diagnostic panel it’s possible to identify if the FTSPARK is connected.
If it’s not connected, product will operate normally (with energy set by the energy
setting wire).