General > Product Reviews
DEFI Blue Racer 52 mm Boost Gauge / OPOD Mono OSIR pod inc fitting
john_o:
i have run mine as 'night dimmed' from day1 :happy2:
never got any further on tapping into the dimmer feed as I dont like it any brighter (even during the day)
inHg - inches mercury for vacuum
psi - poundsPerSquareInch for positive pressure
cmdrfire:
Men use BAR.
xxx_mojo_xxx:
--- Quote from: john_o on November 14, 2009, 10:56:38 pm ---i have run mine as 'night dimmed' from day1 :happy2:
never got any further on tapping into the dimmer feed as I dont like it any brighter (even during the day)
inHg - inches mercury for vacuum
psi - poundsPerSquareInch for positive pressure
--- End quote ---
Thanks, John_o. So what how does vacuum vs positive pressure affect boost?
john_o:
thats a whole bigger subject but positive pressure IS boost
(i.e. you can cram more air using the exhaust driven turbocharger , and therefore more fuel into the engine = bigger bang = more power)
vacuum is the opposite condition usually when your foot is off the throttle and the pressure is negative.
only a forced induction car will show a positive large 'boost' value, but both a forced induction car and a normally aspirated will show vacuum values
my very simple 2p :happy2:
xxx_mojo_xxx:
So, why doesn't my boost shoot into the PSI section of the gauge everything I press the peddle.
I always get movement in the gauge needle...but some times I can be ragging it and the dial simply moves in the lower part of the gauge, i.e. the 0-30 inHg.
Other times, the needle moves straight into the 0-30 psi bit...
Or is there something wrong?
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