Owning HP wakeup call

   / Owning HP wakeup call #31  
2013 Impala LS is 300hp 3555# = 0.084 power to weight ratio

86 Mustang 5.0 - 200 hp 265 ft. lbs. - 3000 lbs. = 0.066 power to weight ratio

19 Edge ST 2.7 TT - 335 hp 380 ft. lbs. - 4477 lbs. = 0.074 power to weight ratio

It's kinda fun to plug in numbers and see what you get....

Surprised the Impala torque is 262 lb-ft @ 5,300 rpm

Any grease monkeys care to explain that? Are all three ratings at the fly wheel?

These are the 0-60 and 1/4 mile numbers I found:

13 Impala SS - 0-60 - 6.3 sec, 1/4 mile - 14.7 sec.
86 Mustang LX 0-60 - 6.3 sec, 1/4 mile - 14.7 sec. (I saw a different torque rating of 285 lb-ft)
19 Edge ST 0 - 60 - 5.7 sec, 1/4 mile - 14.3 sec.
 
   / Owning HP wakeup call #32  
Gosh, if I owned just one Tesla model S plaid, I could be in that 1000HP category.
Tesla model S, plaid, 1020HP, 960ft-lbs of torque.

Supposedly, it hits peak HP at 80mph, and keeps it to 200mph. Nearly linear torque from 0mph up.

My wife test drove a co-worker's model S once. She came home and was still floating from the high. Muttered something about doing zero to 80 to zero in a (deserted) city block...:eek::devilish::eek::ROFLMAO:

I don't think that we will ever hit the collective 1,000HP mark; not enough serious work here.

All the best,

Peter
 
   / Owning HP wakeup call #33  
Explain what part? The Impala torque number?

Or the fact that the mustang with the worst HP/weight tied the Impala with the best?

Or that the edge beat them both with the hp/torque in the middle?

I can't explain the Impala torque number because I don't know what you are asking about it.

But the drag times and 0-60 is more than just peak HP and weight. It's a lot about hearing and also what's called "area-under-the-curve".

Peak HP just that. The highest HP it can produce at a given rpm. But no 0-60 or 1/4 mile run remains at a constant rpm.

So what's the HP at all the RPM ranges it will see (area under the curve).

And I'm guessing the edge has like a 9 or 10 speed trans to keep the in the peak power zone better.
 
   / Owning HP wakeup call #34  
Surprised the Impala torque is 262 lb-ft @ 5,300 rpm

Any grease monkeys care to explain that? Are all three ratings at the fly wheel?

These are the 0-60 and 1/4 mile numbers I found:

13 Impala SS - 0-60 - 6.3 sec, 1/4 mile - 14.7 sec.
86 Mustang LX 0-60 - 6.3 sec, 1/4 mile - 14.7 sec. (I saw a different torque rating of 285 lb-ft)
19 Edge ST 0 - 60 - 5.7 sec, 1/4 mile - 14.3 sec.
There was no Impala SS made in 2013. They stopped in 2009.


 
   / Owning HP wakeup call #36  
Explain what part? The Impala torque number?

Or the fact that the mustang with the worst HP/weight tied the Impala with the best?

Or that the edge beat them both with the hp/torque in the middle?

I can't explain the Impala torque number because I don't know what you are asking about it.

But the drag times and 0-60 is more than just peak HP and weight. It's a lot about hearing and also what's called "area-under-the-curve".

Peak HP just that. The highest HP it can produce at a given rpm. But no 0-60 or 1/4 mile run remains at a constant rpm.

So what's the HP at all the RPM ranges it will see (area under the curve).

And I'm guessing the edge has like a 9 or 10 speed trans to keep the in the peak power zone better.

There was no Impala SS made in 2013. They stopped in 2009.


LS then... what are the major mechanical differences that cause an engine to have considerably more torque than horsepower and visa versa? Stroke length, cam profile, both, or other things?
 
   / Owning HP wakeup call #37  
LS then... what are the major mechanical differences that cause an engine to have considerably more torque than horsepower and visa versa? Stroke length, cam profile, both, or other things?
YES! :ROFLMAO:

Bore
Stroke
Compression ratio
Cam
Timing
Fuel systems (carbs, EFI, Direct Injection)
Turbos/superchargers

You can take two engines that have the same displacement, but very different bores and strokes. The longer stroke engine will likely have more torque at lower RPMs and the shorter stroke engine will be able to rev faster.

All kinds of stuff in there.
 
   / Owning HP wakeup call #38  
LS then... what are the major mechanical differences that cause an engine to have considerably more torque than horsepower and visa versa? Stroke length, cam profile, both, or other things?
Interesting article. I had one FWD muscle car and I'd never have another. Had a Pontiac SSE and the torque steer under hard acceleration was almost uncontrollable. Went like a raped ape but keeping it between the lines was another issue.
 
   / Owning HP wakeup call #39  
These are some posts I pulled from past discussions when comparing V8 to L6 engines. People were saying the L6 made more torque than the V8 of same displacement. It wasn't accurate.

We've talked about this before. A straight six and a V8. The V8 will produce more HP and Torque than the straight 6 of equal/near equal displacement. However, the straight 6 will produce it's torque at a lower RPM, giving the 'feel' that it's more powerful, even though it's not.

I think the discussion was based on the ford 300 straight 6 vs the ford 302 v8, and similarly, the Chevy 292 vs small block chevy's.

And then this:

Here’s some interesting comparisons of the V8-302 and L6-300.

The 302 always made more HP and more torque than the 300.
However, the L6 made it’s peak torque at a lower RPM, hence it felt like it pulled sooner, because it did pull sooner. That’s why it felt better for launching a loaded pickup.

6C1654BA-A9DA-45E6-BD5D-97A413ACDB6B.jpeg



30FD5A68-3DD6-47B6-957C-95FD171B4717.jpeg
 
   / Owning HP wakeup call #40  
2017 Mustang 5.0 GT making 450 horsepower to weight ratio 0.1286
2011 Porsche 3.4 making 349 hp to weight ratio 0.1396
1965 Cobra replica 5.0 making 320 hp to weight ratio 0.1600
Ford diesel 3.2 making 197 hp to weight ratio 0.0563
MX5200 Kubota making 52 hp to weight ratio 0.01156
 
 
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