Performance upgrade options for V10
I have a 2006 Kodiak 22' B+ with the 6.8L V10. It really feels like a dog climbing mountain passes, continually downshifting and jumping RPM's to keep up. 6% grades really affect it. Are there an...
Forum Discussion
smkettner wrote:
Recently drove a loaded 2007 v10 uhaul cross country and it seemed geared about the same and IMO did not have enough gear for 60-65 mph travel. We cruised at 70-75 so a little more rpm but at the bottom of any sweet spot so fairly easy to need downshift when encountering an incline. Still going to run 3500 and 4200 when pushed hard to the max. However I believe with ~15% more gear there was plenty of downshifts to avoid.
What chassis was under that U-Haul? Perhaps it was only the E350?
My E450 Class C turns ~2200RPM at ~60MPH when cruising in OD ... and this is with non-stock taller tires all around. I can maintain 60MPH up freeway-spec grades carrying the loaded RV's average total weight of about 11,800 pounds if I rev it to higher horsepower levels. With the less-tall stock tires it would pull even better due to the slightly higher RPM, however as I understand it the V10's torque curve is designed to be somewhat flat across the middle portion of it's RPM range ... which is what you want in a truck engine.
(My speedometer actually reads 58.5MPH at 2200 RPM due to the taller tires, but the GPS navigator indicates a true speed of ~60MPH.)
