I may be missing the obvious here - are there any UK 4 wheel drive rolling rodes that have experience with VEMS. I am thinking about going plug and play as MRC are not tuning ABY engines anymore on motronic. However I dont want to be monkying around with the mapping and it needs to be reliable. Is Vems a viable alternative to Motec?
Where are you based?
Doug @MRC has cleared up the confusion on this, MRC will be able to remap S2's soon but at present there is a hardware issue that is preventing them doing this job to their satisfaction so mappings are on hold until this issue is resolved.
Alternatively you can contact Automark for mapping.
For a 4WD roller Martin at Reylands in Birmingham said he would be able too do it, the fuel and ignition mapping side is universal it's the fine tweaking that takes a specialist really.
I couldn't find a one stop RR that had VEMS knowledge, Rob do you know one?
If Gunni can't help I can put you in touch with another place.
I can handle your VEMS tuning on a 4wd rolling road here
http://www.motorworx.net/contact-us-2-w.asp