Boost gauge question...
#1
Boost gauge question...
I'm finally getting a boost gauge. I like the Autometer Nexus but they offer two kinds. One for boost and one for boost and vacuum. I'm getting the boost gauge but was wondering what the boost/vacuum gauge is for? Does anyone have any Nexus gauges? I have a downpipe and K&N air filter. Would love to get a RB CB. Thanks, Rick
#2
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this is not exactly the correct terminology use here, but basically a boost only gauge only measures positive manifold pressure. the boost/vacuum gauge will measure positive(boost) and negative(vacuum) pressure. vacuum is good to know because it will tell you if you have a leak somewhere. also more vacuum you have at idle the healthier your engine is(sort of).
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