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Stock FPR with Boost?

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Old 04-24-2013, 12:00 PM
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Default Stock FPR with Boost?
Quick question, will my stock '01 vacuum referenced fuel pressure regulator be able to increase the fuel pressure when in boost? It will increase it in vacuum, for example my fuel pressure is 52psi at idle and 58psi at WOT. But when it boost, will the fuel pressure increase beyond 58psi?

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Old 04-24-2013, 01:14 PM
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Yep!! 10psi boost and mine is at 70psi.
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Old 04-24-2013, 01:27 PM
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Originally Posted by nonnieselman
Yep!! 10psi boost and mine is at 70psi.
Sometimes owning an older model does have advantages!

Are the pressures 1:1 in boost?
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Old 04-24-2013, 01:41 PM
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yes they are a 1:1

if your fuel pump/s can keep up it will still rise till they just cant put out any more.
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Old 04-24-2013, 01:49 PM
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Originally Posted by nonnieselman
yes they are a 1:1

if your fuel pump/s can keep up it will still rise till they just cant put out any more.
Good to know! Thanks
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Old 04-24-2013, 02:54 PM
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i think
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Old 04-24-2013, 05:12 PM
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what year trucks had these vacuum referenced fuel pressure regulators. I haven't even looked at my fuel system yet...
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Old 04-24-2013, 05:33 PM
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99-03
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Old 04-24-2013, 08:10 PM
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You will be fine. I see 65+ at WOT.
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Old 04-24-2013, 08:33 PM
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Originally Posted by GMCtrk
99-03
SWEET. Thanks for the info
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