Cat vs Powerstroke torque curves
I drew out what I expect the Powerstroke torque curve would look like relative to a Cat C11. I think it is very interesting how these curves reveal the different pulling characteristics of ...
Forum Discussion
The essential thing is that your example of a small OTR truck engine portrays a significant "torque rise" (industry weasel word for torque drop off) which means that this engine is essentially a Constant horsepower engine I.e. As rpm rises torque drops and hp stays roughly the same. As pointed out, it minimizes gear shifting since there really is no incentive to grab another gear until you are over the torque peak. This contrasts with the power stroke which is a Constant torque engine, so that as rpm rises so does hp. The cat torque curve encourages economical driving (more profit to the owner operator), the power stroke gives you that kick in the pants and sustained acceleration that 6he consumer level operator desires
