HP/torque curves

[STEVEBROOKS]

Can anybody post a graph of the combined stock HP/torque curves for the '03 HO engine?



Thanks,



Steve

 

[Grunt]

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[STEVEBROOKS]

Thanks, Grunt. I can use the info you provided. Do you, or anybody else, have one graph that shows at what rpm the two curves meet?



Thanks,



Steve

 

[betterthanstock]

Thanks, Grunt. I can use the info you provided. Do you, or anybody else, have one graph that shows at what rpm the two curves meet?



Thanks,



Steve

How can they ever meet? For our Diesel, torque is about double the HP.

By definition, HP=(torque x RPM)/5250. At 5250 RPM, ALL engines will have torque equal to HP, by definition.

So if you spin our Cummins to 5250 rpm, whatever little torque it could still produce thru the choked intake/exhaust/turbo/valves at that rpm, that would be your HP also (by definition).

So if you could manage to produce 500 ft-lb, that would also be 500 hp at 5250 rpm.

To produce 500 hp at half that speed (2625 rpm) would require twice the torque (1000 ft-lb).

 

[THanley]

Here's the data for the 2003HO with NV5600:
View attachment 68026

 

[betterthanstock]

Here's the data for the 2003HO with NV5600:

Keep in mind that torque and HP in this graph is not on the same scale, so you can change units to make the lines intersect wherever you want, but if you read both torque and hp on the same unit scale, they would always intersect only at 5250 rpm, with the English units of measure.