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post #1 of 27 Old 03-13-2009, 01:27 PM Thread Starter
 
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Bench Racing...

What can you performance gurus tell me about these two cars...

Who would win?

Car 1
Curb Weight (lbs)4555
Horsepower 604 @ 4800
Torque (lb-ft)738 @ 2000-4000

Car 2
Curb Weight (lbs)4345
Horsepower 661 @ 5400
Torque (lb-ft)738 @ 2200-4200

I only understand so much, and I don't know enough to understand if the RPMS matter? Or are the differences in RPM between the two neglible? I figured it would make a diffence considering they reach their HP# at different RPMS... or does tht not matter?

Last edited by Marvelous; 03-13-2009 at 01:52 PM.
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post #2 of 27 Old 03-13-2009, 01:35 PM
 
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Based stictly on the shred of info you have provided, the lighter & more powerful car should produce greater acceleration.

Why do you ask???
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post #3 of 27 Old 03-13-2009, 01:36 PM
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If everything else was equal...I would think car #2...is this a trick question?

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post #4 of 27 Old 03-13-2009, 01:38 PM
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It depends on the driver...

SS-ERIC
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post #5 of 27 Old 03-13-2009, 01:41 PM
 
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Quote:
Originally Posted by Classic Chevrolet View Post
It depends on the driver...
And the definition of "win", since the type of competition wasn't described. Perhaps one sleeps five and the other sleeps six so it wins by virtual of more beds...
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post #6 of 27 Old 03-13-2009, 01:41 PM
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i would think car #2 based on weight and HP tho they are pretty even in torque... like Eric said it would probably be a driver's race.



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Last edited by SunsetHawkSelena; 03-13-2009 at 01:57 PM.
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post #7 of 27 Old 03-13-2009, 01:52 PM Thread Starter
 
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edited original post for my confusion.
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post #8 of 27 Old 03-13-2009, 01:59 PM
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i think the difference in the RPM for torque is negligible. the HP RPM range variations do make a difference, but i'm not sure exactly how much difference it would make in, say, a quarter mile race.

p.s. i was never good in math and stuff... maybe some engineers would be able to give a better explanation.



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post #9 of 27 Old 03-13-2009, 02:02 PM
 
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Quote:
Originally Posted by Marvelous View Post
edited original post for my confusion.
Thanks!

Assuming you are thinking in terms of a drag race, and based on the details given, car number two is the likely winner because it is lighter and produces more peak power (hence a lb/hp ratio of 6.57:1 vs. 7.51:1.) There is a slight difference in the RPM numbers you gave but the peak torque curves are both 2k wide and are only shifted by 200 RPM between them so that doesn't mean much.

We know nothing, however, about gearing, transmissions, tires, suspension, conditions, little about the power curve (I'm guessing turbo-diesels?), etc.
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post #10 of 27 Old 03-13-2009, 02:04 PM
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Quote:
Originally Posted by gto_in_nc View Post
Thanks!

We know nothing, however, about gearing, transmissions, tires, suspension, conditions, little about the power curve (I'm guessing turbo-diesels?), etc.
that's true...



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