The Big Three's New Diesels put on a Dyno

Wild Card wrote:

RCMAN46 wrote:

Wild Card wrote:
No brainer that the inline engine produces more torque. Hp is derived by the RPM the engines can spin to...again no brainer that the V engines spin faster thus produce more HP.

Lets take a look at the spes.

Ram 6.7 385 hp @ 2800 rpm
900 ft/lbs @ 1700 rpm

Ford 6.7 440 hp @ 2800 rpm
925 ft/lbs @ 1800 rpm

Duramax 445 hp @2800 rpm
910 ft/lbs @1600 rpm.

Again... Horse Power is a calculation.

Torque in ft# X RPM /5252, thats it...this is the only way to calculate Horsepower

I also dont buy those numbers above. The V8 diesels red line almost 1k RPM above the I6. Do the math yourself.

The V8 Diesels redlining almost 1k rpm higher simply isn't true. Besides the truck in my signature which shifts at 3000 rpms under full throttle, I drive a 2011 F350 with the PSD and it shifts at 2900 rpms at full throttle. The Cummins is right at those rpms also at full throttle. The V8 diesels will rev higher than the Cummins under exhaust brake usage which is the only area where they rev higher.

Rich