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  #1  
Old 01-31-2007, 02:31 PM
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turbo whine

I was just wondering why the turbo whine goes away at about 2000 rpm. Is this normal or do I have a problem because it seems like it should get louder as you push it harder. Thanks for the input because I am still learning about these beasts.
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Old 02-01-2007, 04:13 AM
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BUMP for one of the smart guys.
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Old 02-01-2007, 02:03 PM
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I dont understand ?
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Old 02-01-2007, 02:05 PM
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what year truck
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Old 02-01-2007, 02:13 PM
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Quote:
Originally Posted by 3ddiver View Post
I dont understand ?
Sorry - "BUMP" just means I responded to your post to get it back up to the top of the list for better visibility. That way one of the Techs or someone smarter than I, with regard to your question, will see it and help answer.
Oh and WELCOME to Powerstroke.org!
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Old 02-01-2007, 02:27 PM
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Nope, Im not one of the smart guys!! I just wanted to Welcome you to the site!!
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Old 02-02-2007, 03:16 AM
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Sorry, I thought I put the truck info in the post. It is a 2005 F-250 crew cab 4x4. Rodslinger, thanks for trying to help the vis.
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Old 02-02-2007, 01:25 PM
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turbo whine

The turbo is spooled by the exhaust and really starts to spin about about 1300-1500 rpms and then. Your boosting at that point but not real high. As RPMS increase, the more air passes over the exhaust wheel and spins turbo even faster, thus causing it to build higher pressures and creating the whine that you hear. It whines at lower RPMS but not as noticeable in the cab.

Keith
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Old 02-02-2007, 02:40 PM
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Mine whines only at the lower rpms and not at all at the higher ones.
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