Top Speed?
Le Mans Master
Joined: Feb 2002
Posts: 6,937
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From: Waldorf MD
Re: Top Speed? (LovintheC5)
Instead of using stated tire diameter or even roll out tire diameter, I would think that the tire increases in diameter at that speed due to centrifigal force. Much the same way (to a lessor degree) that a fueler drag racer tire does.
Melting Slicks
Joined: Feb 2001
Posts: 2,137
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From: Oklahoma City OK
Cruise-In III Veteran
Re: Top Speed?
I would think that the tire increases in diameter at that speed due to centrifigal force.
[Modified by FRISKY, 10:33 AM 4/13/2002]
Melting Slicks
Joined: Jun 2000
Posts: 2,221
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From: Los Angeles CA
Re: Top Speed? (FRISKY)
I would think that the tire increases in diameter at that speed due to centrifigal force.
Yes it does, but you also have more weight on the tires because of the aerodynamic downforce.
Yes it does, but you also have more weight on the tires because of the aerodynamic downforce.
First off a radial cannot increase in circumference without stretching the rubber of the tread. Won't happen as that is reinforced with kevlar and steel belts. The tire does not increase in diameter rather it lifts up on the sidewall. The height DOES increase, but not the actual tire diameter. Why does that matter? Because the whole reason you care about tire diameter when calcualting speed is because Circumference (2(Pie)(Radius)) is calulated off that number. Every one rotation=1 length of circumference is applied to the ground. So if the TIRE is spinning at 6000 RPM you put 6000 circumference lengths to the ground in one minute. The heigth of the tire is irrelevant. The circumference is what is being factored here and that is being factored on tire DIAMETER. Whether the tire is fully inflated or not will not change the circumference of the tire. PERIOD!
-Adam
Thread Starter
Burning Brakes
Joined: Feb 2000
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From: Nashville Tennessee
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Cruise-In III Veteran
Re: Top Speed? (decay)
Just when I think the Forum is getting dull and boring, you all make it very interesting again.
Tire height? I can say I've never given that a thought in my life!
I'm always amazed at how much knowledge some folks have about things I think I know something about. Nothing like resuming my position of just scratching the surface of things.
I'm a member of the knowing a little about a bunch of things club. Meeting folks who delve into the intricacies of fields of knowledge always astounds me. That's why I avoid discussing the Civil War, heraldry, and automotive engineering.
:cheers: :cheers:
Tire height? I can say I've never given that a thought in my life!
I'm always amazed at how much knowledge some folks have about things I think I know something about. Nothing like resuming my position of just scratching the surface of things.
I'm a member of the knowing a little about a bunch of things club. Meeting folks who delve into the intricacies of fields of knowledge always astounds me. That's why I avoid discussing the Civil War, heraldry, and automotive engineering.
:cheers: :cheers:
Team Owner
Joined: Jul 1999
Posts: 50,808
Likes: 8
From: Buy USA products! Check the label! Employ Americans
Re: Top Speed? (decay)
Pocono long course going to tunnel turn 161 mph :D I think I can get 3 or 4 more if I get off the banked turn a bit better. Rusty over winter.
Melting Slicks
Joined: Jun 2000
Posts: 2,221
Likes: 0
From: Los Angeles CA
Re: Top Speed? (decay)
Just when I think the Forum is getting dull and boring, you all make it very interesting again.
Tire height? I can say I've never given that a thought in my life!
Tire height? I can say I've never given that a thought in my life!
-Adam
