Lexus LS500/LS500h
Lexus Fanatic
Joined: Oct 2003
Posts: 94,471
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From: Virginia/D.C. suburbs
One HP is the amount of actual work (and energy) it takes to raise a 550-lb. weight one foot in one second....that is the actual power produced in the cylinders when the air/fuel mixture is ignited and drives the piston down. Torque is the twisting motion, produced from that power, at the engine's output-shaft, when that power is converted to rotation via the connecting rods, crankshaft, and flywheel. It is torque, not HP, that actually propels the car forward when you hit the gas. HP mainly determines how fast the vehicle will ultimately reach at top speed, overcoming air-resistance.
Lexus Test Driver
Joined: Nov 2015
Posts: 1,302
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From: CA
https://gearheads.org/the-lexus-is-2...h-of-the-328i/
Here you go. If force = acceleration, then the physics at Toyota is obviously broken. Like I said, these numbers are meaningless in the context of Toyota's car. Both.
Now, the first thing we have to address here is the acceleration. Officially, the Lexus IS 200t with the 240 HP engine and 258 lb ft of torque accelerates to 60 in 7 seconds. Ok, that is a nice round number, almost in the realm of hot hatches like the Golf GTI or something. However, the equally powerful BMW 328i (literally equally, it has same amount of torques for goodness sake) can do the same a second faster. A second faster! That is a lot. And if we know that BMW is often rather conservative in their acceleration estimates, we find it hard to believe that the IS 200t is so much slower than the car it wants to beat in the market race. Obviously, Lexus can talk the talk that they aren’t after the buyers of the 3 series BMWs or that they have different philosophy and all of that, but c’mon. One second!
Lexus Fanatic
Joined: Oct 2003
Posts: 94,471
Likes: 252
From: Virginia/D.C. suburbs
Originally Posted by SW15LS
And my point is made
Lexus Champion
Joined: Nov 2013
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From: WA
In my opinion it's curb weight and transmissions that Toyota needs to work on. Of course a lighter weight car with a better transmission will accelerate faster than a heavier one with a less favorable transmission, even with the same output.
Lexus Fanatic
Joined: May 2012
Posts: 68,740
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From: Maryland
Originally Posted by Rhambler
https://gearheads.org/the-lexus-is-2...h-of-the-328i/Here you go. If force = acceleration, then the physics at Toyota is obviously broken. Like I said, these numbers are meaningless in the context of Toyota's car. Both.
Lexus Fanatic
Joined: May 2012
Posts: 68,740
Likes: 4,076
From: Maryland
Originally Posted by mmarshall
Certainly engineers know how to calculate the power their engines make......come on, those guys don't take advanced-physics courses for nothing. It's just company philosophy. Toyota just is not a company that, traditionally, has emphasized huge amounts of power like Mercedes is doing with its AMGs.
Lexus Fanatic
Joined: Oct 2003
Posts: 94,471
Likes: 252
From: Virginia/D.C. suburbs
You never lack energy. But, never mind, I agree this is not the place to argue it. Besides, we're getting off-topic.
Lexus Fanatic
Joined: May 2012
Posts: 68,740
Likes: 4,076
From: Maryland
Originally Posted by Rhambler
Well I don't think the fruit will fall far from the tree and also why that big torque number is meaningless.
We'll see.
We'll see.
Here are a couple new videos out this morning:
Lexus Champion
Joined: Feb 2011
Posts: 3,309
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From: Canada
