MegaSquirt-3 PCB3.0 UnAssembled Kit w/ MapDaddy4 Upgrade

Description

The MegaSquirt-3 PCB3.0 Kit with MapDaddy4 Upgrade is is a complete unassembled kit for building your own MegaSquirt-3 Engine Management System with a PCB Version 3.0 mainboard and upgraded MapDaddy4 (4-bar MAP sensor + barometric correction). It’s ideal for DIY tuners and advanced engine management setups.

The kit includes everything required for a standard MS3 build — from the genuine B&G PCB and BOM to the MS3 daughterboard, case, pre-machined endplates, and heatsink bar. Even thermal compound and jumper wire are included.

All you’ll need to add is your own tools, solder, and time!

Included in the Kit (Bill of Materials):

• Genuine B&G PCB3.0 board

• All components per standard V3.0 BOM

• MapDaddy4 Upgrade: 4-Bar MAP Sensor with built-in barometric correction

• MegaSquirt-3 daughter card

• Brushed silver aluminum enclosure (machined)

• Pre-machined endplates and heatsink bar

• Heatsink compound & jumper wire

Additional Details:

• MS3X Expansion Board (sold separately) enables full feature access:

  • 8-cylinder sequential injection & ignition

  • Coil-on-plug (COP) control

  • Nitrous, launch control, table switching, and more

• BIP373 Coil Driver (sold separately):

  • Only needed for dumb coils without ignition modules

  • Not required for smart coils or those with external ignition modules

• Tuning Cable sold separately if needed

MS3 Features (Built-in via Daughterboard):

• 16×16 VE and ignition tables

• Fine resolution: 0.1% fuel steps / 0.1° ignition steps

• USB communication

• Onboard SD card logging (SD card not included)

• GM stepper IAC support

• Closed-loop idle & mixture control

• CANBus for GPIO or I/O expanders

• Staged injection, native OEM trigger pattern support

Expandable Capabilities with MS3X:

• 8-channel sequential fuel & ignition control

• Cylinder-by-cylinder fuel and spark trim

• 2-3 channel PWM IAC control

• 2-stage nitrous, launch control, multi-fuel switching, and more

Documentation:

Full MS3 documentation available HERE