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MS1-Extra and MS2-Extra Options comparison

 

As can be seen on the following two tables, some functions can NOT be used with others. I recommend a total of 4 extra's (not including the use of Spark Outputs), I don't recommend using Boost Control with Water Injection (MS1-Extra) as they can cause interference with each other and both have a high current usage.

MS1-Extra Options -- MS2-Extra Options -- Description of Options

MS1-Extra
Note: Two functions in the same row can NOT be used together! e.g. NOS and Water Injection as they are not used in another pad, etc

Pad
Function A
Function B
JS0
Cooling Fan Relay
Water Injection Water Pump Relay
JS1
NOS Relay Output
Water Injection PWM Output Water Valve ¡
JS2
Programmable Output 1
Boost Controller PWM Output ¡
JS3
Programmable Output 2
Tacho output
JS5
Constant Barometric Correction
Second O2 sensor
JS7
Spark E
(5 COP - 10 and over wasted spark setups)
...
JS8
Second Trigger Input
...
JS9
NOS Input (To switch tables or retard ignition)
Switch VE and or Ignition map and or Boost target Tables
JS10
Spark F
(12cy wasted spark setups)
Knock Input
JS11
Launch Control input
...
D14
Spark A
(Used for vertually all ignition setups)
...
D15
Spark C
(6cy and over wasted spark setups)
Programmable Output 4
(Cooling Fan Relay)
D16
Spark B
(4cy and over wasted spark setups)
...
R1
Spark D
(8cy and over wasted spark setups)
Programmable Output 3 (Timed delay possible)

¡ Not recommended to use these together.
Note: Most outputs can be set for Tacho, ExtraEFI.co.uk uses JS3 if available.

 

MS2-Extra
Note: Any function in the same row (A B C D E or F) can NOT be used together!
(e.g. if your using a stepper motor for idle you can not use NOS control as its not used in another pad, etc)

Pad
A
B
C
D
E
F
JS0
Stepper Motor (JS0 - JS3)
Programmable Output
Tacho Output
NOS Relay Output (Stage 1)
Boost Control PWM Output
...
JS1
Stepper Motor (JS0 - JS3)
...
...
...
...
...
JS2
Stepper Motor (JS0 - JS3)
Programmable Output
Tacho Output
NOS Relay Output (Stage 2)
Boost Control PWM Output
...
JS3
Stepper Motor (JS0 - JS3)
...
...
...
...
...
JS4
Constant Barometric Correction
Knock Input
Launch Control Input
Second O2 input
NOS Input
...
JS5
Constant Barometric Correction
Knock Input
Launch Control Input
Second O2 input
NOS Input
...
JS7
Launch Control Input
...
...
...
...
Switch VE and or Ignition map Tables
JS10
Second Trigger Input
Launch Control Input
Tacho Output
EDIS SAW output
NOS Input
...
JS11
Spark D
(8cy wasted + 4cy COP)
Launch Control Input
Tacho Output
Programmable Output
Boost Control PWM Output
...
D14
Spark A
(Used for vertually all igntion setups)
Programmable Output
Tacho Output
...
...
...
D15
Spark C
(4cy COP + 6cy and over wasted spark setups)
Programmable Output
Tacho Output
...
...
...
D16
Spark B
(4cy COP + 4cy and over wasted spark setups)
Programmable Output
Tacho Output
...
...
...
FIdle
PWM Idle Valve Control (2 or 3 wired valves)
Tacho output
Programmable Output
Boost Control PWM Output
...

All 4 (JS0-JS3) pads are used for the stepper motor if selected!

Description of Options:

# NOS - Nitrous control MS1-Extra (An output to drive a relay coil that's triggered by a minimum RPM, TPS, etc; It also uses an input that switches to a new timing map or fixed ignition retard. Can be used as an Anti-Lag for turbo applications too. Buffered, flywheel protection circuit +£12 Please Note: This is counted as 2 options, 1 for the input, 1 for the output, so only 2 more can be added) See HERE for more details

# NOS -Nitrous control MS2-Extra
(up to 2 outputs to drive a dual stage or single stage NOS setup that's triggered by a minimum RPM, TPS, etc; It also uses an input that switches to a new timing map or fixed ignition retard. 2 x Buffered, flywheel protection circuit +£15 for 2 outputs or +£12 for 1 output Please Note: This is counted as 2 or 3 options, 1 for the input, 1 or 2 for the outputs) See HERE for more details.

# Switchable map tables for Fuel and or Spark
(Switches between 2 maps e.g. LPG and Petrol or Street and Track maps, etc; Buffered and protected circuit +£8) See HERE for more details (Note MS1-Extra can also switch boost target tables)

# Boost control
(Target values for boost levels depending on TPS and RPM, controlling the turbo's waste gate high powered FET driver +£10 †) See HERE for more details

# Water injection control
MS1-Extra Only (Pulsed water injection output to give a proportional water ratio using a fast acting valve and a water pump relay output high powered FET driver for the valve and a buffered, flywheel protection circuit for the control relay +£15 For water pump relay control ONLY buffered, flywheel protection circuit +£5) See HERE for more details

# Dual EGO sensor support
(Filter components for a 2nd separate Lambda sensor, 1 for each bank of a V6 or V8 +£5)

# Shift / Warning Light
(I can add a single output that can be switched by several sources e.g. Air temp, RPM, coolant buffered, current limited circuit ready to directly connect to an LED +£5 Includes a red LED please remind me though, as I tend to forget to include it from time to time :o( See HERE for more details

# Launch Control / Flat shift
(Limit RPM during takeoff / shifting to get a better 1/4 mile time Buffered and protected circuit +£8) See HERE for more details

# Real-time Barometric Correction
(Really only suitable for hill climbers or mountain dwellers includes filtering circuit and a second MAP sensor fitted internal to detect atmospheric pressure +£15)

# Cooling Fan programmable output
MS1-Extra Only (An output that controls a relay for your cooling fan. This has a programmable ON temperature and a programmable OFF temperature built in flywheel protection, buffered circuit +£5) See HERE for more details. Note: MS2-Extra can use a programmable output to acheive this.

# Up to 4 programmable Outputs
(A driver to control a relay e.g. Cooling Fan built in flywheel protection, buffered circuit +£5 each) See HERE for more details

# Knock sensor input
(Connection wiring only!! This needs a pre-built knock circuit, see HERE for MS1-Extra or
HERE for MS2-Extra .
FREE internally wired only!!!)


# Tacho Output for coil pack use
(To feed various Rev Counters high voltage output transistor circuit +£5 ) See HERE for more details

# Dual wheel decoder/2nd trigger input (For a second hall sensor input opto protected circuit with hall conditioning +£15 For a second VR sensor input including separate VR conditioning circuit +£35)

- This code is experimental although some people have had some considerable success with the system.
- These options work for most installs, but as there are so many variants of rev counter it is impossible to say it will work on all setups. You may need to add a few components externally, but full details are supplied in the drawings.


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