LS2 E38 HSV - Injector Flow Versus Delta MAP?

[Acer]

Hi all,

Just been playing around with the factory tune from a 2007 HSV LS2 (E38 ) & noticed that the injector flow base & flow correction are a function of: "Pressure Delta Across the Injector" instead of MAP as I am used to. Is Delta Pressure the difference between the fuel pressure in the injector & the pressure in the inlet manifold or something else?

Also, does anyone know what the standard fuel pressure is in the LS2 engines?

Thanks,

Acer

[redhardsupra]

graph it and you'll see that the numbers are flat in most of the range, except for 400 to 480kpa, which translates to 58psi of fuel pressure plus 0..80kpa of MANVAC. it's the same thing as the old IFR, just with a much greater range, which is nice.
or at least that's what i see when oogling these tables so it just might be a bunch of horsepoo