Diesel engine power
Is a 300hp diesel sufficient for a 36/37 foot motor home? Will a 300hp lug down on hills?
Forum Discussion
Crespro wrote:wolfe10 wrote:
Actually HP alone does not answer the question.
There are Cummins B's with 300 HP and 6XX lb-ft torque
There are Cat 3126's with 300 HP and 860 lb-ft torque
There are Cummins C's with 300 HP and 960 lb-ft of torque
They are NOT the same.
The other part of the equation is loaded coach weight with toad.
The torque/HP question arises periodically. My question is: do all of these engines produce rated torque at the typical 1,600 RPM? What is the difference in the torque/RPM curves?
The larger the engine (actually, the longer the stroke), the lower RPM for peak torque. So, peak torque could be at 1100 RPM or 1800 RPM.
