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MegaSquirt 3

The MegaSquirt 3 (MS3) is ready to support a wide variety of engines out of the box, with the ability to control anything with one to eight cylinders with sequential fuel injection and sequential ‘coil on plug’ ignition, a V12 with semi-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, Ford Zetec, Bosch Motronic, and Chrysler Gen III Hemis to unusual modes like Renix Jeeps and the Suzuki Swift GTI. The software includes many ‘race’ type features, two stages of progressive nitrous, water injection, closed loop boost control etc. Vehicle speed sensing, logging of EGT (with external hardware.)

EPA, CARB & Emissions Disclaimer- All ECU's are for race purposes only. It's your responsibility to remain in compliance with all federal, state, provincial, or other laws that apply to you.

Showing 17–29 of 29 results

  • MegaSquirt V3.0 Case

    5 out of 5
    $46.00

    This is the enclosure as used with the MegaSquirt-III V3.0 ECU. It includes cutouts for the SD card, USB port, and MS3X expansion card. This is the case included with all of our current MS1, MS2, and MS3 V3.0 ECU kits.  It is required if you are upgradin...

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  • MegaSquirt V3.57 Case

    5 out of 5
    $46.00

    This is the enclosure as used with the MegaSquirt-III V3.57 ECU.   It includes cutouts for the SD card, USB port, and MS3X expansion card. This is the case included with all of our current MS1, MS2, and MS3 V3.57 assembled ECUs.  It is required if you ...

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  • MS3 Realtime Clock Module

    $86.99

    Add a real time clock to give your MS3's SD card logs a time/date stamp. This module solders to the MS3X board on the included pin headers. Requires a lithium battery, not included due to shipping restrictions. It's compatible with the following batteries...

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  • DB15 Pigtail Harness

    5 out of 5
    $23.99

    DB15 pigtail harness. Used for optional outputs on the expansion connector on V3.57 boards and for the V1.2 version of the MSPNP Gen 2 (the version with the red main board).

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  • MegaSquirt JimStim Stimulator Power Supply

    5 out of 5
    $17.50

    12v DC Power Supply Plugs directly into your MegaSquirt JimStim Stimulator! Power supply supports 120 to 240 volt AC power.

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  • Jumper 10-Pack

    5 out of 5
    $7.49

    10-pack of wire jumpers in 5 colors. These fit 0.1" headers and are used on the JimStim to make connections for testing additional circuitry.   There are several other uses for them too.

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  • DB15 Metalized Plastic Backshell

    $3.00

    Metalized plastic backshell for the DB15 spare I/O connector, as used on our DIYPNP, VVTuner, and V3.57 boards.

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  • DB37 Solder Cup Connector for MS3X

    $6.50

    To make sure you can't accidentally switch the upper and lower harnesses, the MS3X harness uses a male DB37 connector instead of a female one.  We've packaged a DB37 male solder cup connector and a metalized plastic backshell for your MS3X builds. See t...

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  • Metal DB37 Cover with Hardware & Gaskets

    4 out of 5
    $10.50

    Metal DB37 Cover with Hardware and Gaskets This Metal DB37 cover is perfect for building up your own Megasquirt wiring harness or relay cable connector.

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  • DB37 Metalized Plastic Backshell

    $2.99

    This is the 937GME-ND metalized plastic backshell cover included in our basic Megasquirt kits. It's not the same as the massive AMP metal cover used on our harnesses (that's sold on its own under wiring components), but it is cheap and effective if you're...

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  • DB37 Solder Cup Connector

    $3.00

    DB37 female solder cup connector, as included in our Megasquirt and relay board kits. Use this if you're making a new harness and prefer a soldered connection. This is the connector only; the backshell is sold separately.

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  • MegaSquirt PCB3.0 – Heat Sink Only

    $10.00

    Heat Sink Machined for MegaSquirt PCB version 3.0 Part# MSx30-HS

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  • MegaSquirt Tuning Cable (DB9 Straight Thru)

    5 out of 5
    $6.00

    DB9 6' Male/Female Straight thru cable for tuning and testing your MegaSquirt ECU.

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