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6.0L Power Stroke Diesel 2003 - 2007 F250, F350 pickup and F350+ Cab Chassis, 2003 - 2005 Excursion and 2003 - 2009 van

Loud 6.0l

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Old Dec 6, 2004 | 07:09 PM
  #16  
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ovaltrack
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From: Alabama
Tim, were the engines at operating temperature or cold?

I'm not sure I can find any Dodges or DMAXs around here to measure, FORDs are everywhere.

I'll try to measure the same conditions, humidity may be tricky to match. Mine has a 2004 engine 11/03 build date. 2004 F250 CC, 6.0
 
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Old Dec 6, 2004 | 07:22 PM
  #17  
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IB Tim
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Yes full op temp.
The test was a real world test...no lab no anything...
 
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Old Dec 6, 2004 | 10:38 PM
  #18  
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Frobozz
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Originally Posted by Tim Lamkin
It seems our 6.0 really is quiet,
(snip...)

From what I can tell, the F-250 still had split shot injection, raising idle 100 RPM or more and there was a noticable change in the tone of the enging noise.
Well gee, of course the Ford did well on your tests then! Try measuring some newer ones, or old ones that have been reflashed and no longer have the split shot idle. For all the other problems it caused, the split shot injection made the engine *way* quieter than it is now. Ford says "it only got 3db louder" and I say "yeah right." At the very least it changed the nature of the sound to something more annoying, even if it's only 3db louder on a meter.

Duncan
 
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Old Dec 6, 2004 | 10:45 PM
  #19  
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IB Tim
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Well gee, of course the Ford did well on your tests then!
Excuse me, I will not shift any thing, in any direction.,
What it is you read,,,,, the way it is....period.
 
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Old Dec 9, 2004 | 04:50 PM
  #20  
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ovaltrack
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From: Alabama
Originally Posted by SBV45
Tim, is it time for another decibel reading? Could you do that again?
For what it's worth, here's what I measured tonight, 62°F ambient. Mine has hood insulation. 2004 F250 CC 6.0 with one flash after stock. Running Rotella T 15W40 and Stanadyne, 100% stock truck (11/03 2004). The numbers are close to the previous measurements.

62 dB Inside cab at 70 MPH
48 dB Inside cab at idle
70 dB Drivers side @90° 25' away from front wheel
71 dB Front @0° 10' from blue oval This one sounds the best to me!
 

Last edited by ovaltrack; Dec 9, 2004 at 04:55 PM. Reason: Can't spell again
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Old Dec 9, 2004 | 05:55 PM
  #21  
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IB Tim
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Thank you Steve good to have 04 data points with out PI....
 
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