What is the Difference in the Early 99 7.3 Motors and later? Is there a HP difference - Ford Powerstroke Diesel Forum
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Old 03-22-2009, 07:20 AM
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What is the Difference in the Early 99 7.3 Motors and later? Is there a HP difference

Ok, a gentleman had said that the early 99 7.3 Superdutys have the "V8" badge on the front of the fender. I noticed that the air box is different. He also said that they have less HP/TQ, is this true? What else is the difference?
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Old 03-22-2009, 07:25 AM
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This is the best thread for telling the diffs!

Differences between early99 and late99-03 trucks
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Old 03-22-2009, 07:31 AM
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Can I still use a regular programmer for a 99?
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Old 03-22-2009, 10:16 AM
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If you go the programer route yes...

A programer on a E99 will normaly get you to about 280hp...

A programer on a L99 and on will get you to about 300hp...

The differance mainly comes from the AB injectors in the E99 (about 120cc) vrs the late 99 AD injectors (140cc)...
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Old 03-25-2009, 08:42 PM
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Quote:
Originally Posted by Yougotthehit View Post
Ok, a gentleman had said that the early 99 7.3 Superdutys have the "V8" badge on the front of the fender. I noticed that the air box is different. He also said that they have less HP/TQ, is this true? What else is the difference?
Mine's an early 99 and I have door badges. Way too easy for someone to swap. The best sure-fire way to tell is the build date.
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