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Old 04-03-2013, 07:29 PM
 
Location: Whittier, CA
494 posts, read 1,604,000 times
Reputation: 452

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Car 1:
Curb weight - 3200 lbs
Horsepower - 143hp @ 5200 rpm
Torque - 202 lb-ft @ 2800 rpm

Car2:
Curb weight - 2800 lbs
Horsepower - 130hp @ 6000 rpm
Torque - 128 lb-ft @ 3800 rpm

Which car will feel faster - in terms of accelerating from a start and also in terms of passing at highway speeds?
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Old 04-03-2013, 07:41 PM
 
Location: San Antonio, TX USA
5,161 posts, read 9,725,268 times
Reputation: 7949
Whats the gearing like? What kind of Transmission?
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Old 04-03-2013, 07:51 PM
 
10,525 posts, read 15,580,641 times
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Exactly. What is transmission geared to - quick giddy up from the start and lousy drive thereafter, like many Japanese ones do?

But in general. HP gets you off, torque gets you down the road.
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Old 04-03-2013, 07:53 PM
 
3,965 posts, read 4,607,045 times
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Car 1 would feel faster.
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Old 04-03-2013, 08:08 PM
 
Location: Scottsdale, AZ
4,486 posts, read 15,280,038 times
Reputation: 3935
Quote:
Originally Posted by ducviloxi View Post
Car 1:
Curb weight - 3200 lbs
Horsepower - 143hp @ 5200 rpm
Torque - 202 lb-ft @ 2800 rpm

Car2:
Curb weight - 2800 lbs
Horsepower - 130hp @ 6000 rpm
Torque - 128 lb-ft @ 3800 rpm

Which car will feel faster - in terms of accelerating from a start and also in terms of passing at highway speeds?
What would feel faster? OR what would be faster?

As other posters mentioned...it does depend on the transmission. If we're talking both mated to a six speed manual transmission and the drivers being of equal ability...I'd say that Car #1 would be faster but Car #2 would be more agile. Albeit neither vehicle would be a speed demon.
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Old 04-03-2013, 08:14 PM
 
Location: Wyoming
9,416 posts, read 17,385,532 times
Reputation: 14073
I agree with Yellow Jacket.

Car 1 has 58% more torque at 2800 rpm than does Car 2 at 3800 rpm.

The peak h.p. of Car 1 is 10% more than the peak h.p. of Car 2, and it hits its peak at 5200 rpm rather than at 6000 rpm.

Car 1 will deliver the power without the screaming engine.

Car 1 is 14% heavier than Car 2, so the peak h.p. per pound (with payload added) will be pretty even, but the extra torque of Car 1 at the lower rpm should make it outperform Car 2 in normal driving conditions.


Did I get it right, teach?
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Old 04-03-2013, 08:26 PM
 
Location: Cold Springs, NV
4,575 posts, read 9,640,895 times
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Car #3 my 3200 lb 350 hp @5200, and 375 ft lbs torque @ 4400.

WHAT

Go big or go home.

28 mpg too
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Old 04-03-2013, 08:40 PM
 
8,402 posts, read 20,339,495 times
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Quote:
Originally Posted by ukrkoz View Post
But in general. HP gets you off, torque gets you down the road.
I think that's backwards, in general terms.
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Old 04-03-2013, 09:02 PM
 
Location: Scottsdale, AZ
4,486 posts, read 15,280,038 times
Reputation: 3935
Quote:
Originally Posted by MrWillys View Post
Car #3 my 3200 lb 350 hp @5200, and 375 ft lbs torque @ 4400.

WHAT

Go big or go home.

28 mpg too
Let me guess...C5 Corvette?

I'll raise you a 3200 lb 436 hp @5900 rpm and 424 ft lbs torque @ 4600 rpm.

Soon to be a Corvette C7 at 3100 lb 450+ hp, 450+ lb ft of torque.
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Old 04-03-2013, 09:10 PM
 
Location: Prosper
6,268 posts, read 12,903,757 times
Reputation: 9377
Quote:
Originally Posted by vmaxnc View Post
I think that's backwards, in general terms.
It is backwards. Engines produce far more torque than they do horsepower in the lower rpm ranges. It's torque that gets you rolling, it's horsepower that lets you keep accelerating at higher speeds.
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