Charts 302

gday,
I have a AU3 XR8 220 falcon and was wondering what the fuel pressure specs are of those at idle and at throttle, i know they have a uprated fuel pressure but i cant find out what spec that actually is so if anyone knows itll be much appreciated

paulhowes

The std XR8 has 2.8 bar (40.61057 psi) and the T3 engines were uprated to 4.3 bar (62.36623 psi) achieved by a tickford altered fuel pressure regulator.

XF351Lucifa

4.3 bar? um no tickford 220kw's as r most of the xr series are 3bar(300kpa) 44.088psi. and 2.8bar (280kpa) is 41.1488 to be exact. Atmospheric pressure is 14.696PSI often rounded to 14.7, bar as a measurement is a multiply of this. standard non xr's are normally 2.5bar(250kpa) or 36.74psi

paulhowes

Well lets get real technical. I used (convert vers. 4.1) to convert 2.8 bar and was ond pasting what this software converted it as.
The 2.8 bar std XR8 figure for 220KW engine and the 4.3bar for the 250KW T3 engine was pulled from Ford technical service bulletins.

If you read my post properly I said quite clearly as you have also confirmed in your post std pressure is 2.8 bar for 220kw xr8.