Quote from: Randys01 on 01 August 2022, 03:57 AMIt seems you are nearly there in terms of the correct values for everything except hot control pressure. You have to get that down. At 4000+ feet SLC has slightly less than the ave air pressure but at times it seems it is only by a gnat's whisker. Frankly, I feel as tho it is a red herring.Thanks much!! Got some progress to report. First, the system pressure is now exactly 5.5 bar and stable. I played around with a few WURs and seemed to find a good one. Hot control pressure is 3.5 bar. Cold pressure is a bit low, ~0.9 bar at 30C ambient. Should be more like 1.8 bar at that temp, but never mind for the moment. The car starts instantly and idles very smoothly. It revs freely and is drivable, kind of.
There's a million cars a year go to 6000 feet in the Victorian snow fields and no one is in crisis. Indeed my own 6.9 travelled from sea level up to the mountain top every day for 10 years with a standard WUR.
So forget Hi altitude WUR's .
You have to get the control pressure down to 3.6 then let's see.