Boost/vac gauge readings
#1
putting it down daily
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Boost/vac gauge readings
Hey fellas- just a quick question for those versed a bit more in BOOST than I am-
I have recently installed a boost gauge on my s/c vert, and not having one before, was unaware of vacuum readings during normal operation. At cruise, I am pulling ~15 lbs of vacuum, and during decel it spikes up to 25 psi of vac. Are these ranges normal? Just want to get a barometer reading of how healthy my motor is. Thanks in advance.
I have recently installed a boost gauge on my s/c vert, and not having one before, was unaware of vacuum readings during normal operation. At cruise, I am pulling ~15 lbs of vacuum, and during decel it spikes up to 25 psi of vac. Are these ranges normal? Just want to get a barometer reading of how healthy my motor is. Thanks in advance.
#5
rotorhead
iTrader: (3)
sounds ok to me, although many stockport motors do pull a bit more than that. But it's going to vary some based on idle RPM, if you have any leaks at all, and how much compression the motor is making. I wouldn't worry about it unless you are having unusual hot start problems.
#6
putting it down daily
Thread Starter
Thanks very much- my idle is a bit low with the supercharger at ~600 rpm (gotta play with that). No hot start issues (knock on wood) either.
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#10
Jpk3200
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#11
putting it down daily
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I stand corrected. The gauge is not marked in units, but upon some basic internet research, the units of vacuum are indeed measured in inches of mercury. My bad.
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josef 91 vert
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