I'm guessing the OP didn't follow through on his plans :P
Having come from the Volvo world, I can share with you this:
http://volvospeed.com/vs_forum/topic...in-turbo-v70r/
He's using megasquirt which I presume you would also have to use if you really wanted to go this route successfully. Then again I don't know what is possible through openport tuning as that's not an option yet with Volvo.