Specialists in
Engine Management Systems
powered by
MegaSquirt

MS-Extra Forum

New to MegaSquirt or EFI?
See HERE for a glossary of MS terms.

Check out the New
SUPPORT
page !!

 

www.ExtraEFI.co.uk

 

Welcome to ExtraEFI.co.uk. We are dedicated to sales of fully assembled, tested and warranted MegaSquirt ECU's running the latest version of the MS Extra code.

MegaSquirt is a standalone DIY mappable Engine Management System that can control the fuel and spark or fuel only or spark only on virtually any liquid fueled spark-ignition engine, naturally aspirated or boosted.

A MegaSquirt ECU can give you mappable fuel and or mappable ignition using:
i)A distributor setup with a simple hall sensor/points in the distributor or a cam/crank signal.
ii) A coil pack setup using a variety of cam/crank signals.
iii) A Coil On Plug setup
using a variety of cam/crank signals.

The ECU's I sell include a fully labeled / colour coded wiring harness
(approx. 1 meter), an RS232 communication cable, tuning software, drawings and various manuals, this is all included in the price of every ECU!

For more information:
See the Products Page
• See my Frequently Asked Questions section.
Take a look at the new support page
Have a look at the Official MS-Extra Manuals I have been compiling / writing MS1-Extra -- MS2-Extra

As one of the authors of the MS-Extra code and one of the administrators on the main MS-EXTRA forum you can rest assured you are in safe hands from someone who has a lot of experience and knowledge of the MegaSquirt products. For more info have a read of the ExtraEFI company profile

• I hope you find this site a good resource of information. I am constantly updating the site, especially the Support page, so please check back every so often.
• The files on this site (Downloads Page) are obviously free to all in the true MegaSquirt spirit, but bare in mind they are to be used at your own risk. If you are in any doubt simply e-mail me.
• The base configuration files are also there for you to try at your own risk, these are from people who have bought MegaSquirt's from me and have kindly sent me their finished files for others to benefit from or they are base files I have made to get people started.

The ECU's I sell have the latest release of MS-Extra code loaded into them, this has these features as standard:

# 16x16 fuel tables (MS2-Extra Only) (Manifold Absolute Pressure x RPM or Throttle Position x RPM)
# 12x12 fuel tables (MS1-Extra and MS2-Extra)
(Manifold Absolute Pressure x RPM or Throttle Position x RPM for ITB's, etc)
# 12x12 spark tables (Manifold Absolute Pressure x RPM or Throttle Position x RPM for ITB's, etc.)
# Rev limiter (Retards ignition then round robin spark cut or fuel cut or both)
# Overboost protection (Round robin spark cut or fuel cut or both)
# 12x12 Mappable Air:Fuel Ratio targets (MS2-Extra Only) (For use with a wideband lambda Sensor)
# 8x8 Mappable Air:Fuel Ratio targets (MS1-Extra) (For use with a wideband lambda Sensor)
# WideBand or Narrow Band Lambda Sensor compatability
# Coolant temperature related ignition timing advance (helps speed up idle during warmup period)
# Inlet Air temperature related ignition timing retard (helps prevent detonation due to excess heat soak)
# Manifold Absolute Pressure rate of change or Throttle Position Sensor rate of change acceleration enrichment
# Overrun fuel cut (Reduces fuel usage by cutting fuel during overrun)
# Hybrid Alpha-N (For very lumpy cams, ITB's, massive throttle bodies, running boost.)
# Staged Injection (Ideal for 2 different sized injectors e.g. Rotary's)
# Built in Air Density Correction (Using Manifold Air Temperature Sensor)
# PWM Idle Control valves (MS1-Extra and MS2-Extra - For use with 2 or 3 wired variable valves)
# Stepper Motor Idle Control Valves (MS2-Extra Only Note: MS1-Extra can NOT control STEPPER MOTORS!)
# Fuel and Ignition or Fuel Only or Ignition Only (Can be used for a fuel only controller or ignition only or both)

MS1-Extra can also control the following cam/crank signals directly:

# Wasted Spark (Can directly control coils firing them in a wasted spark format as long as crank/cam signal compatable)
# Dodge Neon crank decoder
# GM HEI, GMDIS
# VW / GM / BMW / Bosch 60-2 crank signal
# Rover / TVR V8 3.5L - 5.5L
(GEM's will need a 36-1 crank wheel adding)
#Rotory Engines (e.g. Mazda RX7)
#4G63 DSM (Eclipse/Talon/Lazer)

# Ford EDIS (4, 6 and 8)
# Ford Zetec, Duratec, etc, etc.
# Ford Cosworth

# Ford TFI
# Toyota VAST ignition system
# Toothed wheel decoder (e.g. Ford 36-1 Vauxhall 60-2, BMW 60-2, 12-1, etc.)
# LS1 Trigger
#Neon/420A

MS2-Extra can also control the following cam/crank signals directly:

# GM HEI, GMDIS
# VW / GM / BMW / Bosch 60-2 crank

# Ford TFI
# Ford EDIS
# Toothed wheel decoder
(e.g. Ford 36-1 Vauxhall 60-2, BMW 60-2, 12-1, etc.)
# Dual Wheel
# Nippondenso CAS
# LS1 Trigger

# Neon/420A
# Next Gen Neon
(36-2+2 trigger signal)
# Subaru - RX8
(36-2-2-2 trigger signal)
# 99-00 Miata
# Mitsubushi DOHC 6cy (6G72)
# IAW Weber-Marelli
(Cosworth)
# Subaru
(6/7 trigger signal)
# Rover / TVR V8 3.5L - 5.5L
(GEM's will need a 36-1 crank wheel adding)
# Oddfire Distributor
# 4/1 CAS
# Mitsubishi 4G63
# Miata
(4/2 CAS)
# Renault
(Renix 44-2-2)
# Suzuki Swift Distributor
# Suzuki Vitara 2.0
# Ford Zetec, Duratec, etc, etc.
(36-1 trigger)

Up to 4 of the following features can be added, please see the MS1 or MS2 Products page for more on these or see the comparison chart HERE:

# Nitrous control
# Dual wheel decoder/2nd trigger input
# 400KPa (38PSI) MAP sensor
# Switchable map tables for Fuel or Spark or both
# Boost control
(Closed loop is Experimental code)
# Water injection control
(MS1-Extra Only)
# Dual EGO sensor support
# Shift / Warning Lights

# Launch Control / Flat shift
# Real-time Barometric Correction
# up to 4 programmable Outputs
# Knock sensor input
# Tacho Output for coil pack use
(Standard fit to most of my ECU's, see descriptions)
# Mass Air Flow Meter for fueling calculations rather than MAP or a TPS



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