Edit: Added some new thoughts at the bottom of this post. endEdit:
If you could have a cheap electronic box that made your modding easier, what would you want? I am not talking adding performance, but rather making things simpler to do, such as "EJing it", or putting SPFI onto an EA81.
For the last couple of months, I have been looking into nearly off-the-shelf hardware for engine management. The realm of microcontrollers has really blossomed since I last looked at it some 20 years ago, as has process-sensing/-control electronics.
There has also been a movement, similar to LINUX in the computer world, to provide "open" access to both software and hardware that make microcontrollers practical for many different projects. For as little as US$15 you can get a fully functioning processing heart (and its compiler/assembler/software-tools) to add it to nearly any project that you can dream up. Just add power and the hardware that you want to monitor and control. For US$50, you can get 5-10 times the capabilities.
Along with this, many electronics companies are producing low-cost ICs for use in industry and engine management. Most are designed to interface directly with the cheap microcontrollers.
I am working towards a couple ECUs for myself: an MPFI one for me EA82s and EJs/EGs, and probably a simpler one for SPFIs. These would be basic units at first, just as proof-of-concept. If they work out, they open up a very wide door for me. With a little effort, virtual reality comes to engine-/system-management. Parts can be made to appear as something different, signals can be altered or synthesized.
Any thoughts or wishes?
Helpful gadgets are also something to think about. Something that should be simple is an electronic heater-fan controller to replace the failure-prone resistor pack. It is likely to be nearly the same price as a new resistor block, but with the added advantage of being customizable.
Another thought would be various gadgets to fit in the clock hole in the dash. GPS, inclinometer, MP3 player, clock... lots of possibilities.
Edited by NorthWet, 06 June 2013 - 05:08 PM.