This is still something I basically don't understand----
don't understand how the motor controls its mixture that is rich/lean. All I can figure is that the air flow at whatever temp
and flow rate and whatever turbo pressure --- is what it is... depending on the environmental conditions.
The fuel pump and its controls must be just approximately trying to run on some kind of "ramp" generated by several
different springs inside the pump mechanism. Does the pump "know" what the air is doing and have any ability to adjust ?
I remember there is a little (air pressure) line from the intake going into the pump-----
I ask because I had my pump overhauled locally- I have no reason to believe they didn't do a kick-ass job----
It runs great-- I NEVER have seen any smoke (unless I accidently shift up 3 gears instead of 1
But--- when idling It seems like I can smell a slight fuel smell in the exhaust. No smoke of any color- no water that I can see.
No oil missing, no water missing,-------
(running stock 93 intercooled injectors- 2-nd gen lift pump with the 13 lb spring, 60lb over valve springs, Stock holset turbo
from the 93 (H1C 18mm I think-), big ford intercooler. Boost runs about 1-3 psi in normal traffic. Most Ive seen here in flatland (Fl.) is about 6-7 psi. (in 6-th gear going up an overpass) 95% of the time seems like the engine doesn't even know the truck is back there except in 6 gear. (F-350, 8000 lbs empty) I can definitely FEEL the torque bumping up when I get up into the lower-middle RPM's and the turbo starts doing something.
Could I be a little rich ? How would I know ?