'98.5 Vs '99.5 - Ford Powerstroke Diesel Forum
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  #1  
Old 12-31-2006, 02:57 PM
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'98.5 Vs '99.5

Does anyone know the differances in the turbo and injectors in the early '99 and late '99's?

Our early model sounds smoother than the lates and the turbo screams with no mods. Do the earlys have the same compressor wheel as the OBS's?
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Old 12-31-2006, 03:39 PM
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the early has a different compressor wheel. not sure about the injectors.
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Old 01-01-2007, 01:02 PM
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Early 99 has a smaller compressor housing than the late 99, but to my knowledge makes no difference in power or efficency. Early one might spool up a little faster. Also Gale Banks does not upgrade turbos on early ones but does on the late ones.
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Old 01-01-2007, 01:40 PM
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Early 99 has less power because of smaller turbo with the "ww" style compressor wheel andsmaller injectors. There are a few other minor things like the "cup throwers" the Powerstroke V8 on the fender instead of the door panel etc...

There are a bit more differences but I'm not at home otherwise I'd support this comment with a link.

Hope this helps.
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Old 01-02-2007, 03:33 PM
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Thanks, all! That's what I was looking for. Now if I can just get the high beans to work.
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Old 01-05-2007, 12:04 AM
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Hi Beams?

I don't know if your truck came with daylighters or not, but I had no high beams on my 99.5, and it was a problem with the relay for the lowbeam/daylighters. My truck is also a Canadian model, so I'm not sure if you have to have them or not where you are. Hope that helps.
Gord.
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