Hi all.

I've come to a very important part of my build, mapping!

I've got a 2.0 supercharged blacktop mk4 fiesta. Only running approx 8psi to get me and will then be changing the pulleys to alter the boost.

I know there's a massive theory behind spark timing for Forced Induction, and the only real way to do it is by watching power levels and listening for det, but im mapping on the road with a wideband and wondered if anyone would share their knowledge/spark maps for a blacktop at low boost.

Thanks on advance,

Matt