Good Day All,
I was reseaching and not able to get a true understanding with Boost gauge reading.
I have a aftermarket boost gauge and wanted to know what it should read vs what i am getting to help with some troubleshooting. At what Rpms should the Hg be in and when does it go to possitive numbers. Meaning when does the needle on the gauge leave the -Hgs and goes into the measurable boost numbers?
I know it seems like i'm

, however i cant find anything concrete on this matter.
Thanks in advance,
SJR.