L31MaxExpress
I'm Awesome
Nor does it to me. I ran my more aerodynamic low top Express van into a head wind both ways on a ~100 mile trip this weekend. My 383 turns 2,200ish @ 70 mph and it was working to push the van into the wind. Really ate into my fuel mileage. Add rolling hills into the mix and 1,500 rpm at 70 mph will be miserable. The direct injected 5.6L in my mom's 2019 Titan has as much if not more low-speed torque as the 383 he is building and on the same run it has multiple grades it drops out of 7th gear and goes down to 6th or even 5th. Throw a pretty decent headwind at it and the truck stays in 6th gear. It is geared to turn about 1,800 rpm @ 75 mph.Woof. Doesn't seem feasible to me.
This one grade in particular both the Titan and the Pathfinder have to downshift on atleast 1 gear if not 2 rolling 70-75 mph. My Express and G35 both turn a bit more rpm and motor right up in overdrive. That is the steepest part of the grade, but you are climbing for nearly 2 miles continuously and the grade has the added climbing lane for semis and underpowered trucks towing heavy trailers. The Titan does not make it 100 yards up the grade before it is downshifting.
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