Forum Discussion
RZAR66
Dec 10, 2013Explorer
NRALIFR wrote:
Well, one way for sure the engine calibration has to be changed for the F450's is the max speed. 19.5" tires usually have speed ratings in the 70-85 mph range. The OEM Continentals on mine have an "N" speed rating which is supposed to be 87 mph. The ECM limits the trucks top speed to 85. There are probably other parameters that are changed as well to enable the truck to tow and haul at max capacity without melting down.
:):)
One of the reasons why they stopped using 19.5's on the F450 pick up. I hope they make the 6.2 or even better yet the V10 available other than just the Diesel.
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