Quote:
Originally Posted by lippy
Also note the vacuum curve is in PSIa, and not in Hg. It's easy to convert (e.g., 8.5 PSIa is 17 in Hg and 10 PSIa is 9 PSIa).
Vacuum Conversion Calculator |
Not quite correct there.
Here is my table:
psia inches Hg
0----- 30
1----- 28
2----- 26
3----- 24
4----- 22
5----- 20
6----- 18
7----- 16
8----- 14
9----- 12
10---- 10
11---- 8
12---- 6
13---- 4
14---- 2
15---- 0
So 8.5 psia is 13 inches Hg, and 10 psia is 10 inches Hg.
By coincidence 10 is 10, but in any direction, the figures are obviously different.
5 inches Hg (typical Holley power valve) would be 12.5 psia.
Hope this helps.
Gary