Engine Vacuum vs RPM?
Morning team FABO,
I was under the impression that manifold vacuum dropped lower and lower with increasing Load...which usually goes hand in hand with RPM. (WOT=0 MAP)
I recently saw someone's dyno results claiming that the Vacuum increased with RPM?
like 10 at idle, and 18" at 2500...
am I incorrect in thinking they had this backwards? if not, teach me something :)
Maybe they were recording the numbers with the engine at zero load, but increasing RPM?