Not sure why you'd go to the expense of tuning a 2.2 when swapping to a V6 will give you so much more power pretty much for free?
The z22xe has such a long stroke that I think getting it to rev higher would end badly. IMHO, if you're set on a tuned 4 pot, swapping it for a C20XE would be the best plan.
Purely down to the challenge of it. I know I could stick a V6 in it and have an instant boost but I'm after this for the technical challenge of getting what I can out of it.
I had looked at remapping but I've yet to find anywhere that'll do a 2.2!
Try John Robbins here:
http://www.dnatuning.com/index.php?option=com_content&task=view&id=149&Itemid=303
I had a 2.3 V5 golf done by him and it was great - razor sharp throttle and much better revving through the range. NEver going to be mind blowing but +15bhp and +19lb/ft on a std 2.2 seems fair for £295!?
Cheers dude! I'll be getting in touch with him and see if he has actually done a 2.2 Omega before. A lot of places just thought it was the same 2.2 as they put in the Vectra and VX220 but its an entirely different engine and ECU. We shall see!
Thanks again.