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.
Does anyone have a map or table that shows the relation of Hz to actual air flow. Most of the info I have found is verry vauge. This is for the sensor on a 1991 Mitsubishi Galant VR4.
I don't know the flow rate for this sensor but from all the research I've done I believe that the Karman Vortex sensors have a frequency output linear with air volume flow. in the same housing as the vortex sensor will be a temperature sensor and (on some mitsubishi vehicles) a barometric pressure sensor. basically you use the temp and barometer to get the data you need to determine air density, then use that and the frequency to get air mass.
Not for the feint hearted but less complicated than a hotwire/film sensor..