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MegaSquirt® Forums

The MegaSquirt Project has experienced explosive growth other the years, with hundreds of new MS installations occurring every week - a phenomenal success! MegaSquirt has been successfully used in all aspects of Internal Combustion engine applications including R&D, Industry, Race, and Research. The MS project has transformed itself from a simple R&D project into a full-featured mature engine control system. To reflect this the support structure has also changed to meet the needs of MegaSquirt Users.
Moving forward, the R&D forums for MegaSquirt project are in a read-only mode - no new forum posts are accepted.
However the forums will remain available for view, they still contain a wealth of information on how MegaSquirt works, how it is installed and used. Feel free to search the forums for information, facts, and overview.While the R&D forum traffic has slowed in recent years, this is not at all a reflection of Megasquirt users, which continue to grow year after year. What has changed is that the method of MegaSquirt support today has rapidly moved to Facebook, this is where the vast majority of interaction is happening now. For those not on Facebook the msextra forums is another place for product support. Finally, for product selection assistance, all of the MegaSquirt vendors are there to help you select a system, along with all of the required pieces to make it complete.

Here is a list of active MegaSquirt forums:
MSExtra firmware forum:
Megasquirt/MS Extra Engine Management Owner's Club:
MegaSquirt Addicts:
TunerStudio MS:
MS3Pro Dragracers:

Supplier list for MegaSquirt products:

We thank all of you for the tremendous support for MegaSquirt which has made this an extremely successful project!

There are a number of MegaSquirt® forums (they all started at, but our needs and volume grew beyond one set of forums in September 2006). Currently the forums are: Educational, development, and research on the base B&G MegaSquirt® code and hardware. This was the original forums, but has been 'down-sized' considerably to make information and support easier to find. This board is primarily for support of the DIY oriented MS-I™ and MS-II™ processors on V2.2 or V3 main boards. Dedicated forums for MicroSquirt® users who are looking for details specifically about MicroSquirt® EFI controllers (which are smaller, fully assembled controllers using surface mount technology components and printed circuit boards compared to the DIY oriented MS-II™ controllers on V3.0 main boards). Dedicated forums for GPIO board applications, such as the MShift™ transmission controller, and GPIO board assembly assistance. Success stories for users of all variants of MegaSquirt® controllers who have successfully used MegaSquirt® on their vehicle, or who want to document their MegaSquirt® project, Specialized MegaSquirt® user groups based on location, application, or specific interests,

The rules for all B&G forums above are here: B&G forum rules. Be sure to read them, they may not be the same as other forums you have used.

www.MSextra.comForum for users of the msextra code variants as well as all support for the MS3 EFI hardware (i.e. not the V3 main board, the controller called the MS3).

MegaSquirt® and MicroSquirt® controllers are experimental devices intended for educational purposes.
MegaSquirt® and MicroSquirt® controllers are not for sale or use on pollution controlled vehicles. Check the laws that apply in your locality to determine if using a MegaSquirt® or MicroSquirt® controller is legal for your application.
© 2006, 2015 Bruce Bowling and Al Grippo. All rights reserved. MegaSquirt® and MicroSquirt® are registered trademarks. This document is solely for the support of MegaSquirt® boards from Bowling and Grippo.