FSEs are 1:1 still, but Stu tested one once and it didnt stay at 1:1, so they a bit wank i think, or at least that one was.

SECS also mentions "on electronic injected cars", well it does on all factory carb turbo motas ive seen too, id guess most turbo engines really, i had no idea on mech inj RSTs it didnt change, in fact i thought it did!

Not like eithers relevant to the first question, but thought id mention it...