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2500HD 6.0 First Tow

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Tjeli Enthusiast

Tjeli

Posted
Posted

what doesn't make sense to me is why shouldn't I be maintaining speed after shifting if the torque is higher at those rpms? I don't remember the exact rpms I was in but I know I'm close.

Because when you shift to a higher gear the engine has less mechanical advantage.

 

-Eli

  • 2 weeks later...
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Cowpie Senior Enthusiast

Cowpie

Posted
Posted

Yeah, there is a certain element of rotational inertia that plays into how well a motor does under load. It is a trial and error thing regarding torque and power curves and at what RPM band that actually works the best under load. Commercial drivers are a little more adept at finding those points, but that is primarily because they are working a motor under load day in and day out for hours and hours each day. For the average pickup owner, it might take a while to fully figure out the best operating range of the their motor under load. And the OEM's are not really of any great help in this regard. There is no real flexibility to the owner available like the OEM's offer commercial truck owners. There is no one size fits all solution when it comes to working a truck, be it a 1500 or a class 8 semi.

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