I ran my unit until it got warm (in gear, brake set) Once I had the fan "engaged", I charged the unit at High idle. I still did not get the numbers up front on the high side, you will see in an automotive setup, however the low side got close.
I used the total volume according to Monaco as a "get me close" number. Because I used individual cans, I "put more in than spec." by about 10%.
2000 Monaco Windsor 40 PBSS