MegaSquirt EFI Dyno Tuning Help

A proper tune, on a proper dyno, can make a world of difference…. We’re all about you learning to tune your car yourself, and for fuel tuning that’s usually very attainable with a good wideband a fair amount of time.  However for the DIYer, ignition tuning is usually either guesswork, or blind trust in a…

How to MegaSquirt Your Subaru RX Turbo

Building a Harness Adaptor to use the stock wiring harness for full control of the stock fuel and ignition systems with the MegaSquirt-II Photo by John Swain Application: 1987 Subaru RX Turbo — Other surrounding year models are very likely the same, check ECU pinout and distributor part# to compare. Level of control:  Full Standalone EMS–…

How to MegaSquirt Your Mazda FC RX-7

If you haven’t already, please read the ‘disclaimer’ at the top of the parent page here. The mods for using MS2 and MS3 on an RX-7 are a bit more complicated than many, but we’ve been working with Ken Culver to put together a daughterboard that makes this installation a paint by numbers exercise. It…

MS3Pro Gen1 F1/F2 & MS3Pro EVO F4 Replacement Fuse

SKU: 0454.500MR

The MS3Pro ECU’s feature user-replaceable fuses that protect against voltage spikes and other abuse. To replace these fuses, use a needle nose pliers to pull the fuse out of its holder, and then push in the replacement fuse by hand. These 500mA fuses are used in the first-generation MS3Pro in the F1 and F2 locations. The MS3Pro…

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Motorsports Magic: Celebrating Team MSR’s 2023 SCCA Nationals Achievements

Motorsports isn’t just about speed; it’s a test of character and determination. In 2023, Eric Anderson and the MSR team pushed the limits of both their car and themselves at the SCCA SOLO Nationals. From the high of championship victories to the lows of unexpected challenges, theirs is a story of unwavering passion, camaraderie, and the pursuit of perfection.

2010 American Road Race of Champions

November 5-7, 2010 – Road Atlanta in Braselton ,GA Travis Nordwald takes 1st place in the ITA class at the Enduro on Sunday.  Running an MSPNP ECU Congrats to Travis Nordwald and team!  Travis sent in some in-car video footage of the event (gets more exciting after the warmup lap, about 4:00 in)    …

Take It To The Track: Easy Entry Into Motorsports

Get off the street and onto the track!
It’s easier than you might think to experience the thrill of motorsports. Learn how to get started in the exciting world of racing. In this guide, we explore the accessible entry points into motorsports through autocross, bracket racing, and time trial circuit racing. Whether you’re a seasoned enthusiast or just discovering your passion for speed, our insights will help you take your first steps into the heart-pounding realm of motorsports.

MegaSquirt Troubleshooting 101

Today’s “Technical Tuesday” article is brought to us by one of our own in-house QA techs Carl Eichel. Through his experience as part of the technical support team at DIYAutoTune.com, he is going to walk us through troubleshooting a “crank no start” condition with your MegaSquirt install. Whether this is your first time, or a…

The EFI Tuners Guide Chapter 4 – Electronic Fuel Injection Options – TBI, MPFI, SPFI, ITBs and DI

Updated September 2022 by Jerry Hoffmann Chapter 4: Electronic Fuel Injection Options – Throttle Body Injection (TBI), MultiPort Fuel Injection (MPFI), Sequential Point Fuel Injection (SPFI), and Direct Injection (DI)   What is your starting point– Factory EFI Takeover? Or Carb-to-EFI Conversion? First off, let’s discuss the different people and perspectives that you’re approaching this…

The EFI Tuners Guide – Glossary of Terms

Updated August 2022 by Jerry Hoffmann EFI Tuners Guide – Glossary of Terms This is a living document that I’ll be updating as I continue to write future chapters of this EFI Tuning Guide.  This Glossary aims to define and to help you understand all of the various terms and TLA’s (Three Letter Acronyms… lol)…