# boost guage bars

Discussion in 'Forced Induction' started by Tenzodelsol, Apr 20, 2004.

1. ### TenzodelsolMember

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This is probably a really stupid question but since we all know I am a nooB bear with me

what is one boost bar equilivalent to in psi I have an APC boost guage and it has like five hash marks before the 1 bar it goes up to 15, down to negative 10 and rests of course at zero but can anyone tell me how to effectively read it

thanks

2. ### Slo86GTSuper Moderator

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1 bar = about 14.5 PSI.

3. ### HellBentHONDASenior Member

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1 bar=14.7 psi

4. ### CRX-YEMSuper ModeratorModeratorVIP

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SiR Kid is correct
1 bar = 14.50377 pound/inch^2

5. ### HellBentHONDASenior Member

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yeah your both right. its not the same as atmospheric pressure.

i bar is equal to .9869 atmoshere (14.7 psi at sea level)

14.50743 psi

standard engineering 2nd page

6. ### Slo86GTSuper Moderator

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I covered both bases with the "about" that I threw in there.

7. ### tssd08Junior Member

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So is it just coincidence that 1 kg/cm^2 is *about* equal to 1 bar? I think 1 kg/cm^2 = 14.2 psi or something??

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