The new MS3-Pro standalone engine management system recently made its debut at the Performance Racing Industry trade show in Orlando, Florida,
and is now available for order. This new system is based on the proven
MegaSquirt-III design, but DIYAutoTune.com has revised it heavily to
better meet the needs of professional tuners and racers.
"A lot of backyard tinkerers love that they can pick and choose what
circuits to put in their original MegaSquirt so it has just what they
need and nothing they don't, but most professional tuners don't want to
order circuits on their ECU like toppings on a pizza," says Matt
Cramer, engineer for DIYAutoTune.com. "These are set up for shops where
time is money, and where you want to stock a standard unit you can just
keep on the shelf, and know it's going to meet the needs of just about
anyone who walks in your door."
The MS3-Pro is ready to support a wide variety of engines out of the
box, with the ability to run a V8 with sequential fuel and coil on plug,
a V12 with sequential fuel and wasted spark ignition, or a four rotor
Wankel with separate leading and trailing ignition outputs. Over 50
different ignition modes are supported, from mainstream applications
like the GM LS1, Bosch Motronic, and Chrysler Gen III Hemis to unusual
modes like Renix Jeeps and the Suzuki Swift GTI.
The MS3-Pro's packaging is also a departure from most previous
MegaSquirt EFI Systems. Instead of the industrial looking split aluminum
case and D-sub connectors, the MS3-Pro uses a sealed high temperature
nylon case for light weight and compact size, and heavy duty AMPSEAL
connectors. This provides a compact and sealed enclosure protecting the
sensitive internals from the elements. The MS3-Pro's design keeps the
heat generated to a minimum, allowing it to use a lighter plastic case
instead of a metal heat sink. The MS3-Pro weighs about half as much as
many competing ECUs.
Retail pricing is $1199 with an 8' flying lead wiring harness.
Here is a complete list of the MS3-Pro's features:
*Hardware features:*
Freescale MC9S12X 16 bit, 50 MHz asymmetrical dual core processor
10 saturated injector drivers
8 logic level ignition outputs
3 high current (5 amp) general purpose outputs - 2 can be reconfigured
as additional injector drivers
3 medium current (3 amp), high frequency general purpose outputs
1 stepper H-bridge driver
Camshaft and crankshaft differential inputs - supports VR, Hall
effect, and optical input
12 volt tach output
Fuel pump output
8 analog inputs (5 dedicated sensor inputs, 3 general purpose)
5 general purpose on/off or frequency inputs
2 digital I/O logic inputs
2 knock inputs
RS232, USB 2.0, and CAN communication
Onboard 8 gigabyte SD card for internal data logging
Internal ECU temperature sensor
Real time clock
Temperature range: -30 to +80 degrees C (-40 to +85 without battery
for real time clock)
*Software features:*
Supports speed density, alpha-N, or MAF based fuel and spark tables
Allows blending multiple load types, including a specialized mode for
independent throttle bodies
Auto-Tuning Capabilities using the 'VE Analyzer Live' feature of the
included TunerStudio MS software and your wideband o2 sensor.
1 microsecond injector pulse width resolution
Tables for nonlinear injector behavior at small pulse widths
Supports a wide variety of OEM cam and crank position sensors and
trigger wheels
Individual cylinder trim tables for fuel and ignition
Accelerator pump or model based acceleration enrichment
Closed or open loop idle speed control
Closed or open loop boost control with gear or speed based tuning options
On/off or closed loop continuously variable valve timing control -
supports up to 4 channels
On/off or progressive nitrous control
Traction control
Rally anti-lag
Rotary support - can run up to 4 rotor engines with separate leading
and trailing spark tables
Staged injection
Table switching
16 x 16 fuel and spark tables - can be reconfigured to function as 30
x 16 or 16 x 30 by switching tables based on RPM or load
2 or 3 step rev limiter with no-lift shifting
Wideband AFR target tables
Flex fuel sensor input
Allows repurposing injector or ignition outputs as general purpose
outputs, or high current outputs as injector drivers for 12 cylinder
sequential applications
Real time barometric correction
A/C and cooling fan control with idle compensation
Safety shutdown based on AFR or EGT input
Motorcycle shift cut
6 General purpose on/off or PWM/Frequency inputs
The MS3-Pro is a universal, ruggedized, wire-in ECU that is ready for
serious duty in your motorsport of choice. Additionally, DIYAutoTune.com
will follow up with several plug and play variations based off of the
MS3 Pro architecture for 2013. Some of the planned plug and play systems include the C4 Corvette ZR1, Toyota Supra Twin Turbo, and 4.6 Mustangs.
For more information on the MS3-Pro and other DIYAutoTune.com products, contact us at websales@diyautotune.com, or see the MS3-Pro website here:
http://www.diyautotune.com/ms3-pro.html