Exhaust Back Pressure - Ford Powerstroke Diesel Forum

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post #1 of 6 Old 10-05-2012, 07:16 AM Thread Starter
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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.

2008 F-250 Crew Cab 4x4 6.4
SCT Livewire w/Gearhead Tuning, 4" MBRP Exhaust & S&B CAI

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post #2 of 6 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.

Jeff Dodd
spartan_jeff12@yahoo.com

2012 Ford F-250 Lariat CC/SB

Mods - Spartan tuned via laptop, 4" AFE stainless exhaust system, 2.5" PMF BMC leveling spacers, 3" PMF lift blocks, Fox Racing 2.0 shocks, Recon smoked mirror & cab lights
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post #3 of 6 Old 10-06-2012, 02:44 AM Thread Starter
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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.

2008 F-250 Crew Cab 4x4 6.4
SCT Livewire w/Gearhead Tuning, 4" MBRP Exhaust & S&B CAI

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post #4 of 6 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?

08 F450 CCLB 4.30's
Spartan, Pure Performance Custom 3", Toyo M608Z, MBRP, FloPro, Banks, Volant, Mishimoto, Dieselsite, LineX, Reese 30k
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post #5 of 6 Old 10-08-2012, 04:26 PM Thread Starter
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Off the top of my head, I think about 120 kpa.

2008 F-250 Crew Cab 4x4 6.4
SCT Livewire w/Gearhead Tuning, 4" MBRP Exhaust & S&B CAI

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post #6 of 6 Old 10-09-2012, 02:55 AM
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120-220 Kpa= 17.4 to 31.9 PSI

2008 F450 King Ranch 4X4
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