seeing as i was getting somewhere with my theories of mapping, can someone explain to me why the range (i know the one on the left in the pic posted was for boost, this is the ones in the main page) go up to 105%

i'm assuming it's for injector duration/opening/that sort of thing

so who does something open for 105% of it's time?

or is it called the duty cycle or soemthing like that which i've read about?

so how does it work guys?