Boost gauge on a Ford Focus RS (left)

A boost gauge is a pressure gauge that indicates manifold air pressure or turbocharger or supercharger boost pressure in an internal combustion engine. They are commonly mounted on the dashboard, on the driver's side pillar, or in a radio slot. Image File history File links Download high-resolution version (1280x960, 229 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Boost gauge ... Image File history File links Download high-resolution version (1280x960, 229 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Boost gauge ... Many techniques have been developed for the measurement of reduced or increased pressures. ... Air foil bearing-supported turbocharger cutaway made by Mohawk Innovative Technology Inc. ... A supercharger (also known as a blower) is an air compressor used to force more air (and hence more oxygen) into the combustion chamber(s) of an internal combustion engine than can be achieved at ambient atmospheric pressure. ... It has been suggested that this article or section be merged with Manifold_absolute_pressure. ... The use of water pressure - the Captain Cook Memorial Jet in Lake Burley Griffin in Canberra, Australia. ... This article or section does not cite any references or sources. ...

Turbochargers and superchargers are both engine driven air compressors (exhaust driven and pulley driven, respectively) and provide varying levels of boost according to engine rpm, load etc. Quite often there is a power band within a given range of available boost pressure and it is an aid to performance driving to be aware of when that power band is being approached, in the same way a driver wants to be aware of engine rpm. The power band of an engine refers to the range of operating speeds under which the engine is able to operate efficiently. ...

A boost gauge is mandatory when boost pressure is being modified to levels higher than OEM standard on a production turbocharged car. Simple methods can be employed to increase factory boost levels, such as bleeding air off the wastegate diaphragm to 'fool' it into staying open longer, or installing a boost controller. To avoid excessive leaning out of the engine (caused by increasing the boost beyond the fuel systems capacity) care must be taken to monitor boost pressure levels, along with oxygen levels in the exhaust gas, using an oxygen sensor. A boost controller is a device in a turbocharged or supercharged car that regulates boost pressure. ... General Name, Symbol, Number oxygen, O, 8 Chemical series nonmetals, chalcogens Group, Period, Block 16, 2, p Appearance colorless (gas) very pale blue (liquid) Standard atomic weight 15. ... // An oxygen sensor is an electronic device that measures the proportion of oxygen (O2) in the gas or liquid being analyzed. ...

A boost gauge will measure pressure in either psi or bar and many also measure manifold vacuum pressure also in inches of mercury (in. Hg). Can also be displayed as mm of mercury (mm Hg). A pressure gauge reading in PSI (red scale) and kPa (black scale) The pound-force per square inch (symbol: lbf/in²) is a non-SI unit of pressure based on avoirdupois units. ... The bar (symbol bar) and the millibar (symbol mbar, also mb) are units of pressure. ... Look up Vacuum in Wiktionary, the free dictionary. ... Pressure is the application of force to a surface, and the concentration of that force in a given area. ... For the standard botanical author abbreviation Torr. ...

30 psi Boost Gauge

Top: turbo/APC boost gauge in a Saab 900

Image File history File links SMOKE01. ... Image File history File links SMOKE01. ... Image File history File linksMetadata No higher resolution available. ... Image File history File linksMetadata No higher resolution available. ... See Saab 900 (NG) (a. ...

See also

• Automatic Performance Control
• Boost controller
• Vacuum gauge