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Old 06-21-2012, 01:10 PM
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boost question?

Hey guys, I have a 2005 F350 SCLB 4X4, its has a 6.0 out of a 2007 with about 70k miles on it. Only modifications are gearhead SRL, php gryphon FICM tuner set to atlas 40, blue spring mod and 35 inch tires. I noticed the boost wouldn't go past 22 psi last night. I thought it should be closer to 30. Anyone have any thoughts? Maybe start looking for a boost leak?
TIA for any help.
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Old 06-21-2012, 01:13 PM
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First check for a boost leak? Should be around 26-28psi.
Could be a few other things, the vanes could be sticking and not cycling properly. Simple fix, with a cleaning.

Studded or stock bolts?
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Old 06-21-2012, 07:18 PM
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Just FYI I can hit 30 just about anytime that I want to.
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Old 06-22-2012, 05:18 PM
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sry for the slow reply, the truck is not studded. i dont really drive hard i just wanted the extra low end power and throttle response for passing on the highway and perk the truck up around town. i'll start looking for boost leaks this weekend. any common places to start?
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Old 06-22-2012, 05:27 PM
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All of the intercooler boots would be my first check for leaks.
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Old 06-24-2012, 08:20 PM
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The boost runs lower than you would expect with SRL. SRL+ turns up the boost a bit closer to 30.
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