So i swapped out my old boost gauge with a nice new one, BUT im getting less vacuum reading on idle. Before it would read 'vacuum' 20 on old gauge at idle and now reads 18? I got on the car, and what i had set it to with my old boost gauge was 18psi now gauge reads 22-23 psi @ WOT ?? WTF? One gauge is obviously wrong but which one? how to test? i tried it a few times and sure enough 22-23 psi i remember my old boost gauge would always stop before 20 psi. What should i do? Im concerned..This type of inconsistency pisses me off. i think im going to run my other boost gauge into a pod in the car take a video of it and send it to auto meter.
**Boost Readings** different gauge different reading??
- Thread starter 87chrisss
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Really? Well since i was chasing the high bl's awhile back i changed the following, welded my header's changed my pcv valve to a HD brass one, changed all my vacuum lines, zip tied etc, i also did the plenum/doghouse gaskets and put new bolts, and since then i have always had good vacuum.
What kind of fuel do you use?
This would explain why you're able to run 23 lbs of boost without ignition retard. As TurboDave said,20 lbs vacuum is not the norm. I would think the new gauge is correct. A third gauge would help.
If you can drink it, you've got a great multipurpose product there but it might be hard to explain to a police officer.
salvageV6
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Who made boost gauge #1?
both autometer
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