Fat rear tires
#1
Fat rear tires
I was thinking about getting some more aggressive rims and tires.
Thought about going with some nice fat tires in the rear but physics tells us that friction is independent of surface area
friction depends on the weight of the car not surface area
so fat tires will be just as effective as skinny ones
however, supercars have really fat rear tires
so whats up?
someone needs to explain this to me bc i cant find anything on the internet
Thought about going with some nice fat tires in the rear but physics tells us that friction is independent of surface area
friction depends on the weight of the car not surface area
so fat tires will be just as effective as skinny ones
however, supercars have really fat rear tires
so whats up?
someone needs to explain this to me bc i cant find anything on the internet
#2
#3
im still not seeing how that has anything to do with the traction
it doesnt matter how much of the tire is in contact with the road
or what part of the tire is in contact with the road
its all about the weight pushing down that determines how much friction you get
and how much traction you get
maybe my logic isnt right?
it doesnt matter how much of the tire is in contact with the road
or what part of the tire is in contact with the road
its all about the weight pushing down that determines how much friction you get
and how much traction you get
maybe my logic isnt right?
#6
#7
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#8
no thats not how friction works
friction is dependent on weight
not surface area
therefore
more contact does not equal more traction
thats why race cars have wings and not tires that run the full width of the car
im guessing that wide tires have some effect but no one can offer a logical explanation of why
friction is dependent on weight
not surface area
therefore
more contact does not equal more traction
thats why race cars have wings and not tires that run the full width of the car
im guessing that wide tires have some effect but no one can offer a logical explanation of why
#9
#10
#11
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Taken from post #6 in here: http://www.autocross.us/forums/index.php?showtopic=4410
For the same vertical load and internal pressure, a tire with a wider tread has a shorter, wider contact patch than a narrower tire. The area of both contact patches is the same if the internal pressure and the load are the same. . . A shorter contact patch at the same slip angle begins to slip at roughly the same distance from the leading edge as with a long contact patch. But the shorter contact patch has more of its length stuck to the road than the longer, narrower contact patch; and therefore a larger portion of its overall area is gripping.
And here's basically the same explantion but with some visual aids: http://stockcarscience.com/blog/inde...009/03/22/p108
For the same vertical load and internal pressure, a tire with a wider tread has a shorter, wider contact patch than a narrower tire. The area of both contact patches is the same if the internal pressure and the load are the same. . . A shorter contact patch at the same slip angle begins to slip at roughly the same distance from the leading edge as with a long contact patch. But the shorter contact patch has more of its length stuck to the road than the longer, narrower contact patch; and therefore a larger portion of its overall area is gripping.
And here's basically the same explantion but with some visual aids: http://stockcarscience.com/blog/inde...009/03/22/p108
#12
#13
haha no
im not talking about the material
im talking about the width
say you have a G35 with super fat tires
and the same G35 with skinny tires (both made from the same material)
technically, according to the laws of physics, you will get exactly the same amount of friction
and therefore the same amount of traction
but supercars and race cars have fat tires
why?
i dont know maybe we'll never settle
im not talking about the material
im talking about the width
say you have a G35 with super fat tires
and the same G35 with skinny tires (both made from the same material)
technically, according to the laws of physics, you will get exactly the same amount of friction
and therefore the same amount of traction
but supercars and race cars have fat tires
why?
i dont know maybe we'll never settle
#14
#15
haha no
im not talking about the material
im talking about the width
say you have a G35 with super fat tires
and the same G35 with skinny tires (both made from the same material)
technically, according to the laws of physics, you will get exactly the same amount of friction
and therefore the same amount of traction
but supercars and race cars have fat tires
why?
i dont know maybe we'll never settle
im not talking about the material
im talking about the width
say you have a G35 with super fat tires
and the same G35 with skinny tires (both made from the same material)
technically, according to the laws of physics, you will get exactly the same amount of friction
and therefore the same amount of traction
but supercars and race cars have fat tires
why?
i dont know maybe we'll never settle