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| 1999 to 2003 7.3L Power Stroke Diesel 7.3L Power Stroke Diesel equipped Super Duty and Excursion. |
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#1
Tue, August 10th, 2010, 04:19 PM
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It will keep the engine from defueling at higher boost levels. The stock turbo is only good for about 25 PSI until you start running into durability issues and negative effects of too much drive pressure.
Your Gryphon will still not display over 22 PSI.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years. Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim. 
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#2
Tue, August 10th, 2010, 04:23 PM
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Quote:
Thanks for your input! B
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2002 F250 XC 4X4 Auto Edge Evo sent in for a GRYPHON on 5/20/2010 Happy B day to me!! 4" turbo back MBRP (no-muff) 6637 08' aluminum diff cover AIH delete 
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#3
Wed, August 11th, 2010, 12:02 PM
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You would definitely feel it if it were defueling. With a stock turbocharger and high pressure oil system, these trucks really fall flat on their face after 2500 RPM anyway.
If you get a mechanical pressure gauge and temporarily install it, you can see what the truck is actually doing.
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Tuning, PCM flashing, and burning chips for 7.3s since 2008. Repairing all aspects of 7.3L Powerstrokes for 25 years. Eight 7.3L PSDs in the driveway including a 1994 Crown Vic and 1973 F100/2002 F350. Looking for the next victim.
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#4
Tue, August 17th, 2010, 10:52 AM
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If you do find it is de-fueling, you can buy a boost fooler. This one is plug-and-play easy installation and inexpensive.
Kenny
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