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what are the differences?

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Old Nov 11, 2006 | 01:12 AM
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hush210
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what are the differences?

Im looking at getting a diesel as a project truck, I plan on completely rebuilding the motor and basickly hot-rodding it. I would like to know some of the differences between the 1994.5-1997 and the 1999.5-2003 powerstrokes. I know the older ones were not intercolled but what else?
 
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Old Nov 11, 2006 | 09:44 AM
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the 99-03 had bigger injectors, and there turbos were wastegated, other than that i dont know if there were any major changes.
 
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Old Nov 11, 2006 | 08:53 PM
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Is it the same turbo do you know?
 
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Old Nov 11, 2006 | 10:51 PM
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in the 94.5 - 99 then had a garret turbo that didnt have a wastegate, the 99-03 had a turbo (not sure if it was still a garret) with a wastegate. im not positve that there different but i dont know if they used the same size turbo with a wastegate.
 
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Old Nov 11, 2006 | 11:01 PM
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they did something with the connecting rods also, like made out a different material.

as afr as i know, no psd ever had a wastegate (why on a diesel anyways?) and my 2006 is a garret, my 2004 was, so i assume that they used the garret the whole time.
 
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Old Nov 11, 2006 | 11:27 PM
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Originally Posted by bf250
they did something with the connecting rods also, like made out a different material.

as afr as i know, no psd ever had a wastegate (why on a diesel anyways?) and my 2006 is a garret, my 2004 was, so i assume that they used the garret the whole time.
The 99-2003 had a wastegate. A wastegate is needed do to the size of the fixed vane turbo to prevent a pressure imbalance. Without a wastegate an imbalance of drive pressure VS the amount of boost that the turbo makes and that pressure differential is very hard on the thrust bearing of the turbocharger itself, the WG helps vent that excess pressure as needed.

Hope this helps
 
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Old Nov 12, 2006 | 12:24 PM
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i learn something every day!

those were the years that i was kind of out of the "whats new in the world" truck thing.
 
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