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Old 10-05-2012, 07:16 AM
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Exhaust Back Pressure

Let me start by saying I'm using a livewire to monitor, and I know it's not the best, and measures in some funky units on some things. I've heard people talk about a 1:1 ratio after adjusting for atmospheric pressure. Anyone know what the livewire measures ebp in? My gauge normally reads 120-220 depending on throttle. Just want to make sure my readings are ok. Has been consistent since I got the tuner, and no issues knock on wood. Thanks for the help.
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Old 10-05-2012, 07:38 PM
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kPa (kilopascals)

I'm not sure if the Livewire reads with atmospheric pressure added in or not.
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Old 10-06-2012, 02:44 AM
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Thank you! Pretty sure that's the units of fuel rail pressure too. I've got a converter saved somewhere. Hopefully sometime in the near future I can get a decent monitor.
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Old 10-08-2012, 03:01 PM
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16 - 32 psi converted, is certainly safe even if its not adding atm pressure. What's it run at idle?
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Old 10-08-2012, 04:26 PM
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Off the top of my head, I think about 120 kpa.
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Old 10-09-2012, 02:55 AM
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120-220 Kpa= 17.4 to 31.9 PSI
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