6.4 pulling side by side with 7.3 - Ford Powerstroke Diesel Forum
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Old 10-27-2007, 03:57 AM
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6.4 pulling side by side with 7.3

We took a 100 mile loaded trip this week. I was driving a stock early 1999 F350 6 speed with 4:10 gears. My father was behind me pulling with his new 08 F450 with 4:30 gears. Very similar weight between both trucks. Surprisingly he didn't have that much more power than the one I was driving. As we run the hills he could keep up and on rare occasions he could gain a fraction on me. At most times the 7.3 could hang with him. When we drove empty going back home he couldn't gain an inch on me. I would just wait until he hit 82 mph and then pull up on his rear bumper. Why shut down a new vehicle at 82? Guess they don't think it's safe to tow any faster.

But, the 08 problems are non-existent now. Finally the bugs may be gone. The 7.3 got 12 mpg. That was loaded going down and unloaded coming home. The 08 got a little over 9 mpg doing the same.

Next time I will drive the 03 F450 and blow the 08 away.
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Old 10-27-2007, 04:00 AM
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hahaha -- sounds like you guys have a few PSD's - I'm glad the 08 probs have been addressed and sounds like you have a nice 99 and 03 to go along with it
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Old 10-27-2007, 04:22 AM
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The speed limiter on the 450 & 550 is because the trash 19.5 tires are only rated for that speed. Ford doesn't want another Explorer/Firestone issue on their hands!
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Old 10-27-2007, 07:19 AM
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Quote:
Originally Posted by 720Deere View Post
The speed limiter on the 450 & 550 is because the trash 19.5 tires are only rated for that speed. Ford doesn't want another Explorer/Firestone issue on their hands!
and also they didn't think it would be a safe speed to tow 24,000lbs at.

The real piss off is the detune for the 4:88 gears

Last edited by 99gt; 10-27-2007 at 07:22 AM.
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Old 10-27-2007, 07:21 AM
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A buddy of mine just picked up an 07 F-550 with a dump box. With out a question my F-450 weighs more than his F-550 the way they sit...anywho..long story short we want to race them and see which one is faster

It will be like watching two ice bergs floating down stream
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Old 10-27-2007, 05:52 PM
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We pulled the cars back home tonight. The 03 450 out front, 08 in the middle and the 99 in the rear. The 03 would pull the 08 from a take-off easily but the 08 would run with it when rolling. It was fun!!
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