Part 24: MegaSquirt MS3-Pro Installation - My 76 Mazda RX-5 Cosmo Restoration

Part 24 of my '76 Cosmo restoration is here! And I'm going to come right out and warn you; this is a long one. There is a lot of detail here, for you see, this episode covers in it's entirety the installation of the MegaSquirt MS3-Pro EFI system. Like the engine build in part 12, I decided to cover the entire process in a way that would help anyone performing a similar installation. And while this specifically covers the MS3-Pro, all the information is valid for any MegaSquirt installation and indeed, any other brand of standalone as well. In this episode you'll see from scratch the MS3-Pro installation from bare engine bay to fully wired and functional EFI system. Included is detailed coverage of making an ECU mounting panel, wiring in all the injectors and sensors, wiring up the 2nd gen RX-7 CAS and coils, Boost solenoid, e-fan relays and other EFI related accessories. So pour yourself a big drink, get comfortable, and enjoy. A huge thanks goes out to DIYAutoTune ( http://www.diyautotune.com ) for providing the MS3-Pro and other parts used in this installation. Rotary MegaSquirt Links: http://www.aaroncake.net/rx-7/megasquirt/ http://www.diyautotune.com/tech_articles/how_to_megasquirt_your_mazda_fc_rx7.htm

More Videos...


7-18-13 quick how to tune Megasquirt fuel tables
idling and driving overview on tweaking the fuel table from one of my base tunes.





Megasquirt Basic Wiring & Connecting
Basic Wiring and Connecting a ExtraEFI megasquirt ECU.





9-29-12 how is Megasquirt wired into a car
or, better explained how does sloppy mechanics Mott install a MS1 in a car? ill show you a crude wiring diagram and some of the ways i wired it into my car and hope you can get a quick handle on how it all works and how easy it is.





Megasquirt testing - Jimstim setup for 36-1 trigger wheel
My testing setup for a Megasquirt 2 build. Jimstim v 2.0.3. I show the jumper configuration for and testing procedure for a 36-1 trigger wheel, VR sensor w/ 12v pull-up, wideband O2, two ignition controllers, shift light, extra output and launch control/flat shift.




Follow