Thumper can you answer this though, as it is part of bastaads original question, and I was wondering the same thing. Any small amout of change in timing either retarded or advanced, is immediately noticed.
What is the cause of that as well? I know on my car, it affects all sorts, idle, boost, off boost speed, everything, LOL I couldnt figure out why my car was running so bad at the track and I lost a second off my times due to the fact that I the timing was inadvertantly retarded to much.
Sorry not trying to hijack the post just trying to find out how come timing affects these cars so much.