Originally Posted by mrbillytalent
Yeah I've heard that, but I'm just not familiar with how it controls it... or honestly much about how the DI functions on our car from an electrical/engineering standpoint... side effect of not really needing to touch it on our cars, just tell the computer the afr and gg. If it controls it and the hpfp (should be easy on that one) that's cool. But anyway, yes going single with a different form of boost control would be much easier. The vacuum actuated gates would take one or two outputs just for them, and then you might be limited with the others... You could sacrifice exhaust vanos probably but I'm unsure what else you might need, since the water pump is also electric and a few other things that will need output.
Biggest hurdles will be- crank sensor, compatible? Cam sensors, compatible? DI, can you use it? The rest I don't see an issue with although you may have to use other sensors and do some custom work (like use a non bmw tb/pedal if it can't be controlled). The things you can't easily custom fab would be the crank/cam stuff. Knock sensors aren't necessary but are nice, you can always use a more premative knock sensor just select based on bore size etc. If NECESSARY, crank/cam sensors/rings can be custom fabricated (press or weld/modify the reluctor ring etc). But if you're not doing most of the work yourself it would be super $$$. Interesting project, I would have loved to try about 7 years ago. "