Ian
I think MS3x runs variable vanos.
Have you seen Hoveringuys three threads? - they are facinating if you are considering going down this route:
He is a bit of an electronics whiz, but not a geek. He started off with an M54B30 running on an M50's ECu, then made his own Vanos controller, but then switched to using MS3x to run variable vanos and DISA.
He's now embarking on a megasquirt set up from the outset, so just what we want.
http://www.r3vlimited.com/board/showthread.php?t=116803
http://m54megasquirt3.blogspot.co.uk/
http://www.r3vlimited.com/board/showthread.php?t=320713
I have an M54 engine, ECU and harness if you could use any help?