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Converting boost from bar into psi...

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Old Apr 20, 2007 | 09:22 PM
  #1  
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Default Converting boost from bar into psi...

What is what??

Ie is 1 bar is equal to 10psi??

So if a car is running at 1.5 bar could i assume that that would be 15psi or am i wrong??
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Old Apr 20, 2007 | 09:24 PM
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14.7
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Old Apr 20, 2007 | 09:24 PM
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1 bar is about 14.7 psi
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Old Apr 20, 2007 | 09:25 PM
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1.5 is 22ish
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Old Apr 20, 2007 | 09:26 PM
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14.8psi to 1 bar to be precise.
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Old Apr 20, 2007 | 09:30 PM
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Originally Posted by Jasesapphy
1.5 is 22ish


Thanks pal.

I know now what my motor is doing She hitting 1.5 and holding that

Thanks
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Old Apr 20, 2007 | 09:32 PM
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Pressures

1 bar = 14.504 lbs/sq.in = 100,000 pascals = 29.53 in. of mercury
1 lb/sq.in. = 0.0689 bar = 6.895 kilopascals = 2.036 in. of mercury
1 kg/sq.cm = 14.223 lbs/sq.in. = 0.981 bar = 98.066 kilopascals


Taken from the Burton site
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Old Apr 21, 2007 | 06:30 AM
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1 bar = 14.504psi

To be totally accurate.... 14.50378psi = 1 bar

HANDY CONVERTER
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Old Apr 21, 2007 | 07:26 AM
  #9  
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Originally Posted by o n i o n
1 bar is about 14.7 psi
Actually most people get this wrong 1 bar is actually nearest 14.5psi.
If you want it accurate its :-

1 bar = 14.5037738 pounds per square inch
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Old Apr 21, 2007 | 07:34 AM
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Originally Posted by BatFink
14.8psi to 1 bar to be precise.
You win the least precise "to be precise" award, lol.
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Old Apr 21, 2007 | 07:36 AM
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The diffference most people get confused with is gauge pressure and absolute pressure.

Pressure measurements may be expressed relative to various zero references. Absolute pressure of a fluid is referenced against a perfect vacuum. Gauge pressure is referenced against ambient air pressure, so it is equal to absolute pressure minus atmospheric pressure. Atmospheric pressure is typically about 1 bar at sea level, but is variable with altitude and weather. A standard value of atmospheric pressure has been defined to be 101.325 kPa. If the absolute pressure of a fluid stays constant, the gauge pressure of the same fluid will vary as atmospheric pressure changes. For gauge pressures several times larger than atmospheric pressure, this variation is small as a percentage of reading and may be ignored.

Examples of absolute pressure measurements include barometric pressure, altimeters, and the Manifold Absolute Pressure (MAP) sensor used in the engine control systems of modern fuel-injected cars. Examples of gauge pressure measurements include tyre-pressure gauges and sphygmomanometer.
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Old Apr 21, 2007 | 07:36 AM
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I can do it to 10 decimal places if you want ?, do I get a LOLLIPOP ?
tabetha
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Old Apr 21, 2007 | 07:49 AM
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thats weird - a lad round here is adament that 1 bar = 25 psi and his car is running 2 bar as i said mine was running 1.7!!
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Old Apr 21, 2007 | 07:51 AM
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whoops, too early
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Old Apr 21, 2007 | 07:55 AM
  #15  
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Originally Posted by mattbibs
thats weird - a lad round here is adament that 1 bar = 25 psi and his car is running 2 bar as i said mine was running 1.7!!
Either he is just a penis or he is adding atmospheric pressure plus the boost pressure, 1 bar atmos + 1 bar of boost.....actually he should be quoting you nearer 28 psi....but in reality he only has 1 bar of boost...
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Old Apr 21, 2007 | 07:57 AM
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People get confused saying its 14.7 instead of 14.5 becasue 1 Atmosphere equals 14.7 PSI.

1 Bar = 14.5 PSI
1 Atmosphere = 14.7 PSI
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