Torque versus HP

[Mr_D]

Originally Posted by peggwn

CWSQBM - Thank you. I feel better about my prospects of the engine lasting a little longer with my current configuration. I figure I'm getting close to 350 HP and 485 LB/FT. When I get an OBDII scanner, I hope this is confirmed.

Scanners only put out what is programmed in. It's really just "pie in the sky" until you run the rig on a chassis dyno.
The makers of the scanner sit down with the engine spec's and program in the fuel flow, rpm and boost (maybe others too) from the spec's. Then the scanner reads the parameters and regurgitates the programmed info.

[skypilot_1]

Originally Posted by cwsqbm

I hate threads like this. Its not torque vs horsepower. Horsepower is the rate at which you produce torque.

If you have horsepower, you can always get more torque at the wheels by gearing down. For tow vehicles, focus on engines that produce a high torque number makes sense only because high torque engines mean they produce their horsepower at a low rpm, which is good for durability when used near capacity for long periods of time.

Traction is mostly about weight. A huge boulder would win a tug-of-war with any tractor. Does that make the boulder a good tow vehicle?

Like comparing the Ford V-10 Triton vs. Chevrolet 8.1 Vortec. But the motors are complete opposites, the 8.1 is a lower revving torque motor and the V-10 is a short stroke high-revving slinger that doesn't really make power until its revvin to the moon. Seems hard on the motor. V10 is a real screamer on hills.

[Steve Ownby]

Originally Posted by skypilot_1

Like comparing the Ford V-10 Triton vs. Chevrolet 8.1 Vortec. But the motors are complete opposites, the 8.1 is a lower revving torque motor and the V-10 is a short stroke high-revving slinger that doesn't really make power until its revvin to the moon. Seems hard on the motor. V10 is a real screamer on hills.

Yes & no. Both engines have about to same bore/stroke ratio and the stroke is longer than the bore by a fair amount in both. The V10 produces max hp about 500 rpm higher than the V8 but both produce max torque down about the same rpm. The V10 is an OHC design which means the rpm range can be much higher than the push Rod OHV of the V8.

[lkj831]

As we used to say back in my drag racing days.... torque is your et (elapse time) and horsepower is your mph.

[Gordon Dewald]

Originally Posted by Scatterbrain

Well, that's one way to plow a field, but at the rate their going, it'll be a month before they're ready to seed.

I thought they were digging irrigation ditches. While not very efficient it would be interesting to watch for a few minutes.

[B Dubya]

That steamer outweighs the JB by a lot. That's traction!

[Off Road]

Why didn't the John Deere have his front wheel assist engaged? He would have had a lot more traction with it being in 4x4.