Max power = 280 HP at 6400 RPM (also 230 lb-ft torque at 6400 RPM)

Max torque = 260 lb-ft at 4175 RPM (also 207 HP at 4175 RPM)

Since "maximum torque" is at 4175 RPM, then it follows that torque MUST be lower (or at best equal) at engine speeds below 4175 RPM. Therefore:

Power at 3000 RPM can be no more than 148 HP

Power at 2500 RPM can be no more than 124 HP

Power at 2000 RPM can be no more than 99 HP

I hope the above shows why it is often necessary (perhaps too often for some tastes) for a ProMaster with gasoline V6 to use higher RPMs to get the job done. The above data should also show why up shifts at lower RPMs may not be possible or advantageous.

I know this may sound a little too technical for some, but I feel it's necessary to understand the basics of what this engine can and can not accomplish as RPMs start to drop. This is all based on RAM engine ratings for PM.