Okay so lets revisit the mapping.
We have established that for everything you change, there are generally both positive and negative reactions. The only real exception is where technology improves. At this point you can have your cake and eat it so as to speak!!!
For example, now we have lowered our compression ratio, we now need to compensate for the loss.
We have already agreed that this is done by adjusting cam timing and map.
When the cam timing is adjusted, is this to address the changes is VE?
JJ