as the MAP sensor obviously reads the pressure in the vacuum (and i think the standard ones go to about 1bar? ) would i be able to tap a feed off the signal to get a voltage which i could then translate into a 'boost' reading?

if so, does anyone have a chart of the various voltage readings according to boost pressure?!

thanks,

p.s. it seems like a reasonable idea to me so don't laugh/take the piss