yeah ive searched the net many times and have found nothing much about the k20z2 engine reflash, i beleive because it onyl works on the outflow of vtec, where as the type r engines work in intake and outtake? or vice versa, sorry i know a bit about cars, but hardly anything haha.
the thing that surprises me was my car definitely had a power band transfer yesterday at aroudn 6000rpm. it was almost like i went from half throttle to full throttle, that's what it felt like.
this leads me to believe the cars engine would have some way of havign the vtec system set a more static setup where it always changes at 5000rpm, opposed to using i vtec to change at any rev range depending on circumstances.
i think we just need to put some effort into exploring the engine and may find something.
just a pity that although i work in IT, i'm not a programmer, so I would probably break my car.
in regards to warranty, i'm not worried about that as i write off costs of my vehicle for tax purposes, so really the warranty only covers a few small things that i've already had fixed.