Hi,
My cars manualgives the tyre pressures in bar but my tyre compressor does psi. How do i work out what 2.2 and 2.0 bar is in psi?
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14.5 psi = 1 bar.
www.tvr-webmart.co.uk/tvr_info_psi.asp
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Thanks for that. So 2.2 bar = 31.9 psi so do i round it up to32 or down to 31?
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round it up or down to the nearest whole number so 31.9 =32
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TourVanMan TM < Ex RF >
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All scientists will know that the Bar is just a more trendy name for a standard Atmosphere Pressure. Which is why the weather forecast shows us the pressure in Millibars, with the numbers somewhere near 1000. 960 when it is going to rain cats & dogs, 1025 when set fair.
And as DD says, 1 Bar = 14.5 psi, and as most car tyres use about 30, 2 bar is a fairly safe guess. Most tyre gauges will show both.
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14.5038........ ;o)
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For all conversions like this I use google.
2.2 bar in psi gives 2.2 bar = 31.9083023 pounds per square inch (complete with spurious accuracy.
The only things to watch out for are things like gallons where the default US measure is used.
10 liters per 100 miles in mpg gives 37.854118 miles per gallon
10 liters per 100 miles in miles per imperial gallon gives 45.4609188 miles per Imperial gallon
Martin
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Gauge pressure plus 14.7 psi (1 bar). Pressure, Atmospheric The force exerted by the atmosphere at sea level which is equivalent to 14.7 psi (1 bar). 14.5 is used as a generalisation but all atmossheric and sub sea calculations are based on 14.7 PSI per Bar. I was just leaving a gearge one day and I notices a lady blowing up her typre for rather a long period ogf time. I realized what was wrong, jump out and stopped her. The tyre was up at nearly 3.5 bar ( 51psi ) due the the main scale being in Bar and she wanted 35 psi. Regards Peter
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Peter
You're a brave man approaching a woman on a forecourt under the cameras; you dare not offer help to anyone these days. What if she had been a loopy man-hater who resented male correction and started throwing wild allegations? Once the police were involved, the whole thing would have become totally agenda-driven and fuzzy camera shots would have been bent to fit the required story; the true facts wouldn't have got a look in. Remember that; "no good turn should ever go unpunished...." [I'm having that carved on my tombstone!]
I recently saw a baby that was hanging over the side of it's pushchair outside a shop [while it's chavette mother presumably bought her fags] and was being strangled by its restraints. I resisted the instinct to help and just walked by. Who needs to risk the "PAEDO!!!" grief these days.
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1 Bar = 14.5 psi
"Absolute pressure" starts at perfect vac, so reads [b]atmospheric[/b] (variable, but about 14.7 psi) when open to the atmosphere. So a tyre pressure of 30 psi would read 47.5 psi.
"Gauge pressure" starts at atmospheric so reads [b]zero[/b] +/- when open to the atmosphere. So a tyre pressure of 30 psi would read 30 psi +/- the change in atmosheric since the last calibration.
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1 Bar = 14.5 psi
"Absolute pressure" starts at perfect vac, so reads atmospheric (variable, but about 14.7 psi) when open to the atmosphere. So a tyre pressure of 30 psi would read 47.5 psi.
"Gauge pressure" starts at atmospheric so reads zero +/- when open to the atmosphere. So a tyre pressure of 30 psi would read 30 psi +/- the change in atmosheric since the last calibration.
As above, but with bolds that work. (hopefully, shame there's no edit function)
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Screwloose. I think it is rather sad that you think like that. My be you live in an area that is prone to such thinking. Regards Peter
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Peter
You mean that there are places that haven't been infected with the tabloids' paranoid delusions? Would you have risked going near that baby?
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No, I would have told the mother thou. Lets stick to the subject. Regards Peter
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I once saw a man blow his tyre up on his motorbike at a garage to destruction and it did a good job of buckling his wheel and cleaning the cobwebs out of my ears.................
i used to like blowing old inner tubes up to destruction in bored moments..........
at the end of the day you cant beat an old fashioned psi stick type measurer i have about 3 at work and they are all consistent with real pressures...........
regarding baby my first instinct is to help but guage mummies reaction as well.............
regarding woman with tyre in garage yes i would go and help...............
thats just me though and i usually regret many decisions later especially when sat in cell with no shoe laces ;-)
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