how much boost - Ford Powerstroke Diesel Forum
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post #1 of 9 Old 06-25-2012, 11:32 AM Thread Starter
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how much boost

ive got a 2012 f 250 it only making 20 psi maybe a little over is that about right for these trucks. must say love the truck
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post #2 of 9 Old 06-25-2012, 11:39 AM
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That's right. Mine won't make 20 unless I have a load behind it.
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post #3 of 9 Old 06-25-2012, 01:14 PM
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with straight back exhaust and hs tunes i get up to 35
but prior to mods was getting right at 20
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post #4 of 9 Old 06-25-2012, 01:35 PM
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Originally Posted by Blacked-out-betty View Post
with straight back exhaust and hs tunes i get up to 35
but prior to mods was getting right at 20
x2 ^^^ with deletes i see about 32-34psi before, i only saw 20-22psi



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post #5 of 9 Old 06-27-2012, 03:48 AM
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I read somewhere on here that boost pressure that high (+30psi) are what is causing engine failures. Is this true?
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post #6 of 9 Old 06-27-2012, 11:10 AM
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Originally Posted by DSL_PWR View Post
I read somewhere on here that boost pressure that high (+30psi) are what is causing engine failures. Is this true?
The better question is:
"How many tuned trucks have had turbo failures? How many of those were from overspeed?"

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post #7 of 9 Old 06-27-2012, 02:54 PM
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The jury is still out on that.
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post #8 of 9 Old 06-27-2012, 03:55 PM
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Originally Posted by TrickTruck View Post
The better question is:
"How many tuned trucks have had turbo failures? How many of those were from overspeed?"
I've read about more stock trucks with turbo failures than tuned trucks. Of course not everyone posts that they had a turbo failure either.


Seems like a craps shoot with the original turbo. Some last forever, others fail miserably.
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post #9 of 9 Old 07-01-2012, 02:55 PM
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I noticed today my boost numbers were almost nonexistent, maybe would only get to 10 pounds, but only when I really got on it, the rest of the time it was on zero. No smoke or odd noises, but power is certainly down. When the boost does finally come it it takes much longer then it used to. Would the outside air temps of over 106 F cause this? Or am I on the way to the turbo going out? Mine is 2011 with 16k on the clock.

2011 F-350 CCLB SRW King Ranch 4x4
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