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Old 02-13-2013, 04:31 PM
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fuel pressure regulator questions???

I have a 96 and have read about the fuel pressure regulator shim. My fuel pressure was at 50PSI and installed the California emissions regulator and it went to 80PSI. Ford spec is 50-70 I believe. Things I have read say not to go over 75PSI. If the Cali spring gets it to 80 and it is a ford part what could it hurt? The truck is more responsive and idles a lot smoother.
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Old 02-13-2013, 04:41 PM
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What is psi at wot
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Old 02-13-2013, 05:04 PM
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I don't believe the gauge is liquid filled but a snap on gauge fluctuating between 75-85 at between 3000 and 3400. at idle it fluctuates between 75-80.
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Old 02-13-2013, 05:18 PM
Can you hear the derail??

 

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Not sure if its hurting at all if you say it runs better, I have a Cali model but have yet to check fuel pressure as it has yet to let me down
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Old 02-13-2013, 10:54 PM
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Anything above 75psi, and you start to run the risk of damaging injectors.
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Old 02-13-2013, 11:00 PM
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But being a factory ford part are Cali model 97's f'd from the get go?
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Old 02-13-2013, 11:18 PM
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Quote:
Originally Posted by 351fifty View Post
But being a factory ford part are Cali model 97's f'd from the get go?
No. What I am saying is that it is not supposed to see that much pressure. A stock Cali model truck does not see that pressure either. My Cali model truck sees 70psi(it is a SD, but same concept).
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