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| 7.3L IDI (Non-Powerstroke) Diesels Technical discussion of topics related to vehicles powered by the 7.3 Liter In-Direct Injection Navistar engines. |
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07-07-2011, 12:13 AM
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ideal fuel pressure???
need to no ideal fuel pressure on an idi. truck is a 1991 7.3 auto with dual ram air hood scoops straight pipe and water meth injection. when the pump was set a little hotter than stock it held 4-5 psi. the other day he turned it up ~3 turns and it would never get above 3psi so tonight we put a holley blue(110gph) electriclift pump on and regulated it to ~5psi at idle. keeps constant fuel pressure at this setting just curious as to what kind of pressure these trucks like?
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07-07-2011, 07:00 PM
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4-5 sounds right I think I remember no more that 7?
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