Originally posted by SPOautos
It also depends on you idle I think. I know that at around 750rpms my vacume is about 15 but at 900 or so rpms its closer to 20. You vacume will change with rpms so unless we all have the same idle I think we're comparing apples to oranges.
Here is my vacume readings:
750rpm - 15
about 900 rpm - 20
driving and take foot off gas - 20
The car runs real strong and has a rock solid smooth idle
Yup, vacuum is definately affected by your idle. My idle is set at around 850 and I get around 16 and it increases as I get closer to 1000 rpm. Once you go past a certain rpm, I think around 1000 rpm, the vacuum will then start to decrease.