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how high to rev a PSD?

 
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Old 10-04-2002, 08:27 AM
dcmsu
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how high to rev a PSD?

I just test drove a 6 speed PSD the other day...and was wondering how high of RPMs I should go before shifting. Under normal driving and under heavy acceleration or towing? I am not sure what gears this truck had in the axles, but it was running about 2000 rpm at a little less than 70 mph. This seemed kinda high to me...I guess it just needs bigger tires.

Dan
 
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Old 10-04-2002, 10:19 AM
Cope
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how high to rev a PSD?

I guess just cruising through town I shift somewhere around 2000 or so. When accelerating hard or towing I shift at about 3000. This, of course, is only after the truck is properly warmed up. I wouldn't worry too much about over-reving. That's what the rev-limiter is for.
-Cope

97 F-350 PSD ZF 5 Speed 4x4
 
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Old 10-04-2002, 05:13 PM
The Diesel Dude
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how high to rev a PSD?

The PSD has an electronic governor that won't let you over rev it.
 
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Old 10-05-2002, 11:32 PM
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how high to rev a PSD?

 
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Old 10-05-2002, 11:33 PM
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how high to rev a PSD?

Navistar rates the PSD for 4400rpm continious duty. Ford's factory rev limiter is 3400rpm. You can't over rev it.

The gears were either 3.73's or 4.10's
 
 


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