MS1 MegaSquirt ECU - Design Your Own

Each SymTech Labs MegaSquirt ECU is professionally assembled and configured for your application. No soldering, crimping or connecting is required inside the unit whatsoever. Simply plug in a SymTech Labs premium MegaSquirt wiring harness and you're good to go!

MegaSquirt is a revolutionary performance oriented engine management system (EMS) developed by Grippo & Bowling. It is powerful and feature-rich, but it costs hundreds, and sometimes thousands, of dollars less than comparable systems. This assembled MegaSquirt ECU contains an MS1 processor and a v3.0 board. Unless otherwise requested, it will ship with the latest stable release of the MS1/Extra firmware.

A cam input is necessary for sequential ignition (for applications that support it). High current ignition outputs can drive most standard ignition coils directly, whereas low current ignition outputs can drive "smart" coils with internal ignitors (e.g. LS1/LS2 coils). The standard 2.5 bar MAP is well suited for naturally aspirated and turbocharged applications (rated for up to 21 psi of boost). Consider a 3 bar (39 psi) or 4 bar (44 psi) sensor for higher boost levels. If you need assistance selecting the correct confirguation for your application, please contact us.

All SymTech Labs MS1 systems boast the following features:

• 12x12 fuel tables and 12x12 ignition tables
• Full fuel injector control
• Full ignition control
• Fuel cut and/or spark retard based rev limiter
• Wideband oxygen sensor AFR target table
• Dual independent fuel and AFR target tables
• Various barometric correction schemes
• User configurable TPS and MAP based acceleration enrichment
• On/off and PWM IAC support (additional hardware may be necessary)

• On board MAP sensor
• Speed density and alpha-N algorithms
• Universal injector drivers work with high or low impedance injectors
• Compatible with narrowband oxygen sensors and most wideband oxygen sensor systems
• 9,600 baud serial connection for tuning
• Open source code and schematics for advanced customization
• Black anodized extruded aluminum enclosure with CNC machined flanged end plates

• Tuning software (TunerStudio MS) is regularly updated, and free to download and use
• Log data on your laptop with TunerStudio MS, or on your Android phone with Shadow Logger MS

Please purchase our MegaSquirt option service for hardware options and additional circuits.

MegaSquirt ECU's are custom built to order and require a two week lead time. Please contact our sales team if you need expedited service.

All MegaSquirt systems are NC/NR.