Im in the market for a full size gasoline pickup for towing and hauling. Doing ALOT of homework, and most of the different truck brands have power bands at around 4000 rpm. (Lowest was ecoboost @3500) That seems awful high? Wouldnt you want to engineer the power band closer to 2500-3000 rpm where most tow rigs cruise at highway speeds for the sake of fuel efficiency?
In: Engineering
Well you don’t particularly care what the RPM is for peak power, it can be fixed in the transmission. Also, peak power is always going to be at a high RPM, as higher RPM means more cylinder worth of fuel/air mixture per second. You expect power to basically go up with RPM until you hit the peak RPM.
Second, you don’t want to tow at peak RPM, you want to tow at peak efficency at the required power. That’s usually a lower RPM, and that’s usually how the transmission is optimized. If you need peak power (for a hill or whatever) you downshift to get that.
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