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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.)

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Showing 1–16 of 30 results

  • 8′ MegaSquirt Wiring Harness (MS1/MS2/MS3 Ready)

    5 out of 5
    $83.00

    MegaSquirt Wiring Harness - 8 Feet LongWe've completely redesigned our wire harness to help you get your fuel injection installation right the first time with several new features to help make your installation as easy and reliable as possible:...

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  • 8′ MegaSquirt Wiring Harness for MS3X

    5 out of 5
    $86.00

    MegaSquirt MS3X Wiring Harness - 8 feet8' of TXL High temp automotive grade wire. Color coded wiring with labeling printed on the wire every 6 inches -- no paper tags here! All wiring is pre-crimped (NOT solder cupped!) to the DB37 Heavy d...

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  • FTDI USB to Serial Adapter

    $28.99

    High quality USB to RS232/Serial/DB9 adapter for use with any/all of our products if your laptop doesn't have a DB9 port.  This is probably the most common item we see people come back for after a purchase, so we highly recommend grabbing one now!  We h...

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  • USB to Serial Adapter – Trouble Free!!

    4.6875 out of 5
    $22.49

    Sorry!! We're out of these temporarily due to worldwide shortages of parts making them harder to come by.  We have more on order, but it's going to be a month or so before we have them.  In the meantime, here is a suitable alternative we've sourced:...

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  • MegaSquirt-3 PCB3.0 Kit with MapDaddy4 Upgrade

    4 out of 5
    $509.00

    MegaSquirt-III Engine Management System w/PCB3.0 - Unassembled Kit Part # MS330-K_m4Important Note: The BIP373 coil driver is sold separately and is only required for direct coil control. If you are using coils with internal or external ignition modul...

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  • MegaSquirt-3 with PCB V3.0 Kit

    5 out of 5
    $445.00

    Included is a MegaSquirt-III Engine Management System w/PCB3.0 - Unassembled Kit Part # MS330-KImportant Note: The BIP373 coil driver is sold separately and is only required for direct coil control. If you are using coils with internal or externa...

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  • MegaSquirt 3X Wiring Bundle – 8′ long

    $51.00

    MegaSquirt MS3X Wiring Bundle - Length = 8'8' of TXL High temp automotive grade wire. Color coded wiring with labeling printed on the wire every 6 inches -- no paper tags here! Use with MS3X Expansion board or other sequential deviceJust ...

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  • MegaSquirt Tuning Cable (DB9 Straight Thru)

    5 out of 5
    $5.50

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

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  • MegaSquirt Relay Board – Assembled Unit

    5 out of 5
    $130.00

    MegaSquirt Relay Board - Assembled Unit - Part# MSRelay-CThough the Relay/Power Board is not required, it is a convenience and can reduce the chance of miswiring during the installation. The relay board provides a central place for all of the required...

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  • MegaSquirt-III Daughterboard Kit

    5 out of 5
    $230.00

    Upgrading your MS1 or MS2 to the latest MS3 has never been easier with this processor replacement! We've packaged the MS3 daughter board with 2 of the 40 pin sockets, so it will match up with our cases (required for upgrade) which have cutouts for the SD ...

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  • MegaSquirt-III MS3X Expansion Card & Connector Kit

    4.8571428571429 out of 5
    $110.49

    Put this small circuit board in your MegaSquirt-III to unlock its full potential! This board installs in the MS3 case with no soldering; just connect it with the included ribbon cables. Install the MS3X board to add this whole list of inputs and outputs t...

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  • MegaSquirt Relay Cable

    5 out of 5
    $89.00

    High Quality 4' Relay Board cable for connecting your MegaSquirt ECU to your Relay Board.Works with MS1, MS2, or MS3, all standard main boards (includes not just the IAC and ignition pins - it also has the spare pins on 3 through 6). It has a shielded...

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  • MegaSquirt Wiring Bundle – Long

    4.125 out of 5
    $48.00

    MegaSquirt Wiring Bundle8' TXL wire, color coded with labeling printed on the wire every 3 inches -- no paper tags here! IAC and Ignition wires are included for MS-I / MS-2 use (or MS-3 Primary Harness use) Shielded Ignition input wireGrea...

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  • JimStim v1.5 MegaSquirt Stimulator with Wheel Simulator – Unassembled

    4.75 out of 5
    $80.00

    Use this board to test the MegaSquirt's inputs and outputs on the bench, before you install it on a car!The JimStim features a microcontroller which allows the simulation of up to 30 different toothed wheels, in addition to the standard distributor s...

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  • JimStim 1.5 MegaSquirt Stimulator with Wheel Simulator – Assembled

    5 out of 5
    $120.00

    DIYAutoTune Part# JimStim-CJimStim is essentially an engine simulator, a microcontroller which allows the generates up to 30 different toothed wheel signals, in addition to the standard distributor signal. Test your RPM input on the Stim, or tell the ...

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