Torque vs. HP
Just stumbled across and interesting article that folks might be interested in seeing. Torque vs. HP
Forum Discussion
JetAonly wrote:
The essence of the difference between Gas and Diesel experience is this. The HP and torque curves of the gas engine are shaped the same, they just peak at different RPM's. The diesel has a torque peak early then falls off slowly with rpm, while the HP curve is more peaked at the upper limit of rpm. Since HP is a RPM based measure, as rpm drops HP falls. In a gas engine it may have to fall 1500 rpm to see the torque rise. In a diesel the torque rise is immediate. So, measured HP falls at slower rate in the diesel vs gas.
YMMV
Actually, the curves are not similarly shaped with today's turbo, intercooled, and computer controlled diesels. Their torque curves are flatter and longer. Also, the diesel's hp curve will often grow as the rpm's are lowered.
