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#1
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Trailer Tires Overheating.
Steven Shelikoff, the racing expert wrote:
Actually, the area of the wheel exposed to the gas in a race car tire is pretty large compared to the area of the tire since they are wide and low profile. Not in all types of racing. Actually, in some types, the narrower the better, less contact area, less friction. Take a salt flat racer, for instance. Though it doesn't apply much to boat trailer tires, the heat conductivity of the gas would work against tire cooling in the case of race cars and aircraft since it would serve to increase the rate of tire heating in heavy brake application. Many aircraft tire failures are due Of course it all depends on the type of racing. During most racing like road racing, twisty corners, etc, heavy braking is applied but for very short durations. Superspeedway racing, not at all. Are you really trying to say that on superspeedways, they don't use brakes at all? That's pretty stupid. They actually use brakes as opposed to letting off the throttle, trying to keep the enginer RPM's up. It takes forever to get those restictor plate engines back up to speed. They do, however, use completely different brake setups, smaller rotors, pads. These smaller, thinner rotors will get quite hot, quite quickly. There's plenty of cooling air ducted to the brakes and the rest of the suspension components can also act like a heat sink since they are directly attached to the brakes and wheel. On the other hand, the tires are always generating heat whenever the car is moving, and especially in turns. Heat is the enemy of tire life and whatever can be done to take away more heat from the tire will help. That being said, I sure wouldn't want hydrogen in my tires. Now that I can agree with. |
#2
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Trailer Tires Overheating.
"basskisser" wrote in message om... They actually use brakes as opposed to letting off the throttle, trying to keep the enginer RPM's up. It takes forever to get those restictor plate engines back up to speed. Can you explain that statement? Unless your referring to the go karts you rent at the amusment center I don't understand how you can maintain engine RPMs and slow the car down. Automatic transmission?? Hmmmm..... Seen it on off road cars, I wasn't aware of it being very common on any sort of track or pavement vehicles. Without some sort of a slip clutch or torque converter, the engine RPM is going to be directly related to the velocity of the car. Rod |
#3
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Trailer Tires Overheating.
"Rod McInnis" wrote in message ... "basskisser" wrote in message om... They actually use brakes as opposed to letting off the throttle, trying to keep the enginer RPM's up. It takes forever to get those restictor plate engines back up to speed. Can you explain that statement? Unless your referring to the go karts you rent at the amusment center I don't understand how you can maintain engine RPMs and slow the car down. Automatic transmission?? Hmmmm..... Seen it on off road cars, I wasn't aware of it being very common on any sort of track or pavement vehicles. Without some sort of a slip clutch or torque converter, the engine RPM is going to be directly related to the velocity of the car. Rod He is confused. Brakes are noy used at the 2 NASCAR restrictor plate tracks (Daytona & Talladega). They simply run wide open through the turns on these tracks since there is enough banking (30 degrees) that they do not have to back off at all. |
#4
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Trailer Tires Overheating.
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#6
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Trailer Tires Overheating.
"basskisser" wrote in message om... Pure horse****!!!!! They do, indeed, keep the throttle wide open, but they DO use the brakes, and quite a lot. They use the brakes as opposed to letting up on the throttle when drafting, to avoid loosing engine rpms from what is commonly refered to as "lifting". I ask you again: What type of connection do they use between the engine and the wheels that allows the engine RPMs to stay high while the car slows down? Rod |
#7
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Trailer Tires Overheating.
On Wed, 5 Nov 2003 11:11:13 -0800, "Rod McInnis"
wrote: "basskisser" wrote in message . com... Pure horse****!!!!! They do, indeed, keep the throttle wide open, but they DO use the brakes, and quite a lot. They use the brakes as opposed to letting up on the throttle when drafting, to avoid loosing engine rpms from what is commonly refered to as "lifting". I ask you again: What type of connection do they use between the engine and the wheels that allows the engine RPMs to stay high while the car slows down? He's full of crap as usual. They do use the brakes without lifting off the gas pedal but not to avoid loosing engine rpms. It avoids the short time lag in getting power back if you lift off the pedal. It also avoids abrupt changes in handling and suspension geometry that you get when you lift off the gas pedal, which shifts the front/rear weight distribution around. Steve |
#8
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Trailer Tires Overheating.
"Steven Shelikoff" wrote in message ... They do use the brakes without lifting off the gas pedal but not to avoid loosing engine rpms. It avoids the short time lag in getting power back if you lift off the pedal. Yeah, I know. It is especially common on cars that use a turbo charger as it will keep the exhaust manifold hot and the turbo spun up so they can have maximum boost when they really need it. I am sure it gets carried over to normally aspirated engines just because the drivers get into a habit and don't want to break it. I was just pushing basskisser to see if he could apply any amount of reason to anything he says. He seems to get a little bit of knowledge and applies it all wrong. The RPMs high while the car slows down was just so obvious an error, yet he repeated the statement multiple times even after being challenged. Rod |
#9
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Trailer Tires Overheating.
On Thu, 6 Nov 2003 11:46:20 -0800, "Rod McInnis"
wrote: "Steven Shelikoff" wrote in message ... They do use the brakes without lifting off the gas pedal but not to avoid loosing engine rpms. It avoids the short time lag in getting power back if you lift off the pedal. Yeah, I know. It is especially common on cars that use a turbo charger as it will keep the exhaust manifold hot and the turbo spun up so they can have maximum boost when they really need it. I am sure it gets carried over to normally aspirated engines just because the drivers get into a habit and don't want to break it. It's a very long time for turbo cars, but is still there in normally aspirated cars. Must have something to do with inertia. lol I was just pushing basskisser to see if he could apply any amount of reason to anything he says. He seems to get a little bit of knowledge and applies it all wrong. The RPMs high while the car slows down was just so obvious an error, yet he repeated the statement multiple times even after being challenged. There is no rhyme or reason for anything basskisser says. He's an idiot and if he says something, you can be fairly certain that the opposite is true. Steve |
#10
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Trailer Tires Overheating.
"Rod McInnis" wrote in message ...
"Steven Shelikoff" wrote in message ... They do use the brakes without lifting off the gas pedal but not to avoid loosing engine rpms. It avoids the short time lag in getting power back if you lift off the pedal. Yeah, I know. It is especially common on cars that use a turbo charger as it will keep the exhaust manifold hot and the turbo spun up so they can have maximum boost when they really need it. I am sure it gets carried over to normally aspirated engines just because the drivers get into a habit and don't want to break it. I was just pushing basskisser to see if he could apply any amount of reason to anything he says. He seems to get a little bit of knowledge and applies it all wrong. The RPMs high while the car slows down was just so obvious an error, yet he repeated the statement multiple times even after being challenged. Rod Are you just trying to be funny, or are you really not very bright? |
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