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| Orion Reflash System for Navistar Power Hungry Performance is the first in the industry to provide custom tuning for the 1998 to 2007 Navistar Medium Duty platform! If you have any questions or would like more information on Orion, please post here. |
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#8
Fri, February 25th, 2022, 09:14 AM
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We regularly like to set the Rev Limit to 3200 RPM on the T444e and 3000 on the DT466/DT530. The 7.3L in the Ford is 3600 RPM from the factory and we've pushed it to 4000 RPM (or even higher) for performance applications. The 444/7.3L is a solid, proven engine as evidenced by the fact that they haven't been produced in 20 years and are still banging away out on the road.
I hope this is helpful.
__________________
Bill Cohron - The Mad Doctor   Power Hungry Performance - The ORIGINAL in Ford performance tuning... Since 1997! (678) 890-1110 www.gopowerhungry.com - Home of the Hydra Chip, Minotaur Tuning Software, and the new Orion Reflash System for Navistar! Bring back  Windows™ XP and 7.  Windows™ Vista and Windows™ 8 is a pain in my a$$!  Windows™ 10 is only slightly less annoying!  Windows™ 11 is garbage!  Much to my surprise, I'm actually quite enjoying Linux! 
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