Quote: Remember, Torqe is more important that Horsepower
Nope. Horsepower at the rpms you actually run at is what gets you up the hill. Not published hp at peak rpms.
Ken
I'm free of prostate cancer for 5 years now.
All men over age 50 should get an annual PSA blood test. Mine had a low reading, but the yearly jump was significant. The biopsy showed cancer just entering the aggressive stage. Dr. Hackenslash removed it.
When I purchase a motorcycle like my Kawasaki ZX-11 I look at the HP numbers and when I purchase a tow vehicle I look for a diesel because I know it will have at least 100 ft lb more torque than the gas engine and at a lower rpm. The Hemi in a 2005 Dodge 3500 pickup has 345HP with 375TQ @4200RPM and the Cummins diesel 325HP with 610TQ @1600 RPM. The Hemi would die trying to keep up with the diesel with both towing 23,000 lb GCWR up a hill.
I'll go along with that. They Hemi is strong as hetche for a small block gas burner. But it's not that strong. However, it tows our 10,040 lb high profile 5th wheel 65mph in tow/haul (4th) O/D .75 at 1800rpm and any headwind or hills drops it into 3rd (direct) at 2600rpm. Don't let the 3800rpm peak torque spell the whole story. The Hemi makes 80% of it's torque at 1200rpm. But no, it's not going to tow as much as the diesels tow. I've owned four Dodge Cummins diesels and believe me, even with them, in town you know the trailer is back there. On the interstate it's easy to forget our 5th is back there with the Cummins or Hemi.
HP is no more than a figure of how hard you pull. A horse pulling a plow can measure HP directly using a scale like a fish weight scale. Pulling power is horsepower. Torque is the twisting force at the crank. If you have megga torque and low rpm, that'll translate into megga HP at low rpm. My Hemi makes more HP than the 600 Cummins or 6.0 PSD. But who runs 5500rpm. At 2,000-3,000 where we usually run towing, I'll be making less horsepower than the diesels at the same rpm. In fact, the diesel makes as much horsepower at 1800rpm as I make at 3000rpm. So you can refer to it as torque if you prefer but, all that torque means all that horsepower where you want it. Down low. Horsepower is simply torque in motion and how much work you can do with it. My Hemi requires about 30% more rpm and about 30% more fuel to make the same HP as the new diesels. I have to use gear reduction to make torque that the diesels make on their own. Not a problem either way.
'05 2500HD Dodge SLT RB1 5.7L Hemi 5spd auto/4.56. 118k miles
ex '95 Cummins,'98 12v Cummins,'01.5 Cummins,'03 Cummins
'07 KZ Jag 28JFSS.
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