F450 maximum speed ???
#16
Originally Posted by kimminau2
+/-2900 rpm at 80mph. Really bad mpg in that range. Need to keep the rpm's around 2000 for the best mpg unfortunately that is 60 mph or so. That is why I am going to go with 245 or 265 whatever will fit in the wheel wells. Should make it more like 4.30's or 4.10's have not figured out which one yet. It has plenty of power so I am not worried about the taller tires.
Thread
Thread Starter
Forum
Replies
Last Post
ddglong1981
1987 - 1996 F150 & Larger F-Series Trucks
8
07-31-2016 11:19 AM
glsurratt
1999 to 2016 Super Duty
8
10-16-2010 09:34 AM
BlueOval460
1994.5 - 1997 7.3L Power Stroke Diesel
4
11-22-2008 12:09 PM