Boost Pressure - Ford Powerstroke Diesel Forum
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post #1 of 13 Old 01-01-2007, 10:25 AM Thread Starter
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Boost Pressure

I installed my gauges and 18k mod last weekend. With the 18k turned up I can hit 30 psi of boost, is this normal or is my gauge off? My SES light comes on at about 25 psi. I have heard that the light should come on at about 18 psi.

99.5 F250 XLT 4x4 Crew LB
Mods: Tymar, 4" MBRP exhaust, Shimmed FPR, Optics Guages , HPX line, AIH Plug, Overboost Annihilator, leveling Kit, DP-Tuner F5 ( 60 tow, 80 Eco , 120 Race , High Idle)

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post #2 of 13 Old 01-01-2007, 10:32 AM
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Boost Pressure

I would say that maybe a little high. As in not saying your gauge is off but that is high for a stock turbo. May want to be cautious with that ok.


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post #3 of 13 Old 01-01-2007, 10:42 AM Thread Starter
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It just touches 30 then falls back down. What would happen, burn the turbo or burn the engine?

99.5 F250 XLT 4x4 Crew LB
Mods: Tymar, 4" MBRP exhaust, Shimmed FPR, Optics Guages , HPX line, AIH Plug, Overboost Annihilator, leveling Kit, DP-Tuner F5 ( 60 tow, 80 Eco , 120 Race , High Idle)
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post #4 of 13 Old 01-01-2007, 10:45 AM
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Boost Pressure

Uh you can say good bye to that turbo if you ain't careful. first thing to go would be the seals from there who knows.


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2005 6.0 Crew Cab Long Box Lariat, current truck

2004 6.0 destroyed by contaminated fuel

2002 7.3L burnt
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post #5 of 13 Old 01-02-2007, 11:57 AM
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SES light should come on around 24 psi, then start defueling. Better watch those EGT's!

2000 PSD 4X4 Crew Cab LWB Lariat, Auto
Boost and Pyro
5" Exhaust w/Muffler
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post #6 of 13 Old 01-02-2007, 01:21 PM
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Quote:
Originally Posted by SouthernSmoker View Post
I installed my gauges and 18k mod last weekend. With the 18k turned up I can hit 30 psi of boost, is this normal or is my gauge off? My SES light comes on at about 25 psi. I have heard that the light should come on at about 18 psi.
Yes this is normal youre gauge is probably dead on. I can get mine to hit 30-32 sometimes. The SES light should come on and defuel somewhere between 22 and 24 lbs. You can get a map fooler to keep the computer from seeing the extra boost.

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post #7 of 13 Old 01-03-2007, 04:44 PM
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what chips do you guys use because i have a six gun and a big hoss chip, and a banks impeller and intake and exhaust, and i cant get more than 24 maybe 25lbs
of boost.
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post #8 of 13 Old 01-03-2007, 05:21 PM
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I'm using a DP-Tuner with exhaust, and I get 25-28 psi with it turned up on the 120 or 140 settings. I'm also using a boost fooler to avoid the SES light and defueling.

2000 PSD 4X4 Crew Cab LWB Lariat, Auto
Boost and Pyro
5" Exhaust w/Muffler
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post #9 of 13 Old 01-04-2007, 09:28 PM
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I am getting about 23-25 stock havent tried with programmer yet
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post #10 of 13 Old 01-04-2007, 10:19 PM
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I can get mine to 29 psi on a LONG uphill WOT. This is with exhaust, intake, and 10k.

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