Reading boost in bars, not psi.

[9d2TSi]

Is there a chart or something anywhere that tells how to read boost in bars? I have a boost gauge problem and i'm going to get new gauges. I am thinking about Greddy, but I can't tell the difference between psi and bars. Thanks for any help.

 

[Aikouka]

Bars is a very conceptually easy way to read air pressure. Just know that normal atmospheric pressure is 1 bar (something around 14.7psi) and you're fine. But remember, some gauges might read overall boost or added boost (such as 20psi going into the engine may be read as 5.3psi on some gauges) So if you want +12psi of boost, you'll want about +.8 bar of boost.

 

[9d2TSi]

How's about 20 - 22? Thanks for the help, bro. I'm dumb when it comes to these things.

 

[Aikouka]

How's about 20 - 22? Thanks for the help, bro. I'm dumb when it comes to these things.

About +1.5 bars.

Oh, and the number is actually 1 bar = 14.5037738 psi. So that makes it +1.44 for 21psi, so I guess my estimate of +1.5 was good.

 

[9d2TSi]

Sweet, that's what I needed to know. Thanks again.

 

[Defiant]

and yet again, for the search-incapable drones

 

[9d2TSi]

Thanks Defiant, when I searched I didn't get that.

 

[98RedGs]

http://www.chromatography.co.uk/Techniqs/Other/Pressure.htm
Or there...
Hehehe.

 

[ckozlgod]

http://www.chromatography.co.uk/Tec...er/Pressure.htm

Great thanks, now we call all measure our boost in kiloPascals :laugh:

 

[NeOzz1]

i keep that chart in my center console

 

[98RedGs]

Great thanks, now we call all measure our boost in kiloPascals :laugh:

Dam Straight!

 

[ldstang50]

yea other people besides me that use bar!

 

[Quasimondo]

Why was I the only one who thought that he was talking about the LED bars like what they have in the GVR4's?

 

[Defiant]

Why was I the only one who thought that he was talking about the LED bars like what they have in the GVR4's?

We'll be kind, and not say it out loud.

 

[yup talon]

im bringin this back from the dead, and it may be a totally newb question, but i figured it'd fit here better than starting another thread. but im wondering how to convert the vacuum on this greddy gauge? it goes from like 0 to 500 to 736 wheres my idle supposed to be at? 20 vacuum or whatever

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[CanadianTalon]

20 inches = 508 mm

20 inches of Hg would be equal to 508 mm of Hg.