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What does the 91W on your tire mean?
AnswerThe W in 91W after the size code indicates a speed rating. While these tires are proably Z rated (speeds in excess of 149MPH) in the tire size the W indicates that the tires are rated to a higher speed. W and X were added since there were no guidelines about how much over 149 Z rated tires were good for.W indicates a top rated speed of 168MPH._____The "91" indicates load capacity per tire! You'll get about 1350lbs per tire.:)
What does an H mean in a tire rating?
It's a speed rating, in this case meaning 'up to 130 mph'.
Is tire pressure based on the tire or the vehicle?
The tire, the vehicle. anticipated speed, temperatures, cornering requirements and the roadway are all factors that determine the optimum inflation. Most don't need to be considered by street cars, but must be factored in for racing at high speeds.
How speed increases by pressing accelerator?
Pressing on the accelerator increases engine rpm (revolutions per minute) which in turn increases wheel/tire rpm which increases vehicle speed.
How do tire pressure monitors work?
when all tires are inflated properly, they each rotate at the same speed. there are sensors that monitor wheel speed and when one loses air pressure, it rotates at a slower speed at with the sensor then senses and sends that signal to the computer
What tire cause hydroplane less easily?
Tires with worn tread will hydroplane easily, very dangerous.
Does low tire pressure effect a car hydroplaning?
Absolutely, and if one tire is more flat, thus wider, it will or could cause a spin out and loss of control. It is directly related to the square root of the tire pressure. According to testing cited by the NTSB (National Transportation Safety Board) the speed at which a normal tire will begin to hydroplane is 10.35 x the square root of the tire pressure. So, if the recommended tire pressure for your vehicle is 36psi, the speed at which you can expect to hydroplane would be 62 mph. Let that tire pressure go down to 25psi and you're hydroplaning speed drops down to 52mph!
What speed does a dirt bike hydroplane?
The FAA did a lot of work to determine the factors involved in hydroplaning. Their testing showed that the speed at which hydroplaning can occur depends upon the air pressure in the tires. The formula is V = 9 * Sqrt(Pressure) where V is speed in MPH and Pressure is in PSI If you add weight but don't add air, the tire will compress, which causes tire pressure to go up, increasing the hydroplane speed. ref http://www.sheldonbrown.com/tires.html#tread
What happens when you put a single direction tire on the wrong side?
It will hydroplane on wet roads.
How high does the water need to be to hydroplane in a car?
not at all high. 1/2 inch or even less can hydroplane a car. all it means is that the vehicles tires are not spreading the water out or shedding it away from under the tire and is instead riding on top of it due to speed and condition of the tire. Once the car is riding on top of the film of water control is compromised and braking ability diminished.
Do all cars have a possibility to hydroplane?
With enough speed, yes.
How much money is a hydroplane engine?
Speed costs...how fast do you want to go?
Why can hydroplane motorboats travel at greater speed than regular motorboats?
Less friction.
If there is one and a half inches of water what speed with you hydroplane at?
Probably above 35 mph. Depends upon the weight of the vehicle and tire foot print. This is quite a bit of water on the road so it probably would hydro fairly easily.
Water on the road can cause a vehicle to hydroplane?
Yes, combined with worn tires and vehicle speed.
Why do Toyota solara's seem to hydroplane?
This is a result of poor tire tread. It happened to me after 30,000 miles. The tire tread looked good but was actually quite worn. After I changed the tires the hydroplaning was gone.
When the road on a tire has worn out so that the tire is bald the tire will have high or low friction on a dry road?
The tire has almost no traction and can blow out at any time. It will also hydroplane in very little water. A tire should be replaced when there is 2/32 tread left. A bald tire is an accident waiting to happen.
