03 turbo drive pressure - Ford Powerstroke Diesel Forum
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post #1 of 1 Old 07-16-2009, 05:25 PM Thread Starter
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03 turbo drive pressure

has anybody else checked drive pressure of stock turbos. I just checked mine and I can't help but think something isn't right. stock tune 30psi boost=112psi drive!!! I then let it build up to about 20# boost and the switched turbo off and it still made 29-30# boost and drive dropped to 30-31# and truck was quicker. Then I loaded spartan hybrid race. 33# boost=85# drive. same thing when turbo was off it dropped close to 1:1.

2003 f250 lariat 6.0 auto cc sb 4x4
leveled, 20x12 chrome hostages, 305/55r20s, 5" stacks, SCT livewire, billet grilles, custom vgt / s475 compound, custom built headers, ported heads, 6.4 valves, Hamilton springs, reworked pistons, delta cam, Florida converter, custom built 5r110, painted frame, chrome metalflaked valve covers oil pan and drive shafts.
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