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Discussion Starter #1
Has anyone done the blue spring fuel pressure mod on their 7.3l? Or is this mod only for the 6.0 I have done some searching of the forums and haven't found much.Would you recommend this mod to improve performance if it can be done to a 7.3l?

P.S If you have a ford part number that would be appreciated.
 

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Discussion Starter #2
I found this after some more searching. Can anyone confirm?

Fuel Pressure Regulator Repair Kit (contains spring, valve spool & new brass plug)
(Ford) F6TZ-9K061-AA (CA emissions)
Fuel Pressure Regulator Spring
(International) 1825854-C1 (CA emissions)
 

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googs pointed you in the right direction.

when doing the billet fpr housing i would rebuild the rest of the fpr as well.

dieselorings sells a rebuild kit and billet fpr.
 

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Discussion Starter #5

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I use the gold spring , you won't notice any big difference in power, it will lift your F/P and atomize the fuel better.

If you are after more power you need other components.

Fill you signature in and we can see what mods you have already and you can be advised better.
 

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I apologize in advance for reviving an old thread and asking a what may be a dumb question. Would the blue spring mod ba applicable to my 97' 7.3 ? I just never see anyone talk about it for the OBS trucks.
 

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The blue spring in the kit works to raise fuel pressure.
 

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