This is why I am posting looking for feedback and to gauge interest.
In the DSM community, DSM Link has long been the proven method of tuning older DSMs. Having an EPROM ECU was a pre-requisite. But DSM link is pricey and you are locked into their products as well as stuck with older technology ECUs.
In the later cars, especially the EVOs, ECU Flash and EVO Scan have largely surpassed DSM Link due to the newer ECUs. I was able to bring that over to the 3000GT platform, and I believe that bringing an additional ECU platform to this platform the will allow the DSM community to piggyback on the EVO community while simultaneously bringing this platform a faster, newer, more common ECU.
I also know that some have tried to make conversions for the EVO 8 and that the conversions had some issues. I think around the knock sensor circuit. This is easily fixed without having to change out the knock sensor. Basically, the knock sensor is nothing short of a piezo element that, for all intents and purposes, behaves like a microphone. On the ECU, there is a band pass filter tuned to the platform. This band pass filter is comprised of several resistors and a capacitor. Take for instance the 6G72 engine. The same knock sensor is used on just about all of the different variants. Yet each platform specific ECU has a different band pass filter to ensure that the ROM sees actual knock correctly.
If there is enough interest, an appropriate EVO ECU can be identified, it’s sister ECUs can be identified, Galant VR4 Knock circuits can be reverse engineered (along with any other circuits that are problematic), and the ECUs custom built to accommodate all of the Galant’s stock systems while still allowing the EVO code with all of the various EVO sub-tunes and aftermarket ROMs being able to be ported over to this platform. This of course, would be targeted to be a lower cost solution than DSM Link is currently, including any needed ECU modifications.
Just in CPU speed alone, this would be a large jump ahead as the EVO platforms use a much faster ECU that what is used in the Galant platform. Additionally, the newer ECUs are largely surface mount with newer components including capacitors that don’t have the same problem that all of the older Mitsu ECUs were plagued with.
I welcome all questions and comments on this topic as there may be a lot of information out there that I have not been privy to.
Brett