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presiune corecta pentru anvelope Toyota LC200


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Se pare ca voi trece de pe P-uri pe LT-uri si cautand pe net am gasit pe un forum urmatorul post care mi s-a parut interesant :

 

The stock tire from Toyota LC200 is a P-Metric tire - P285/60R18 114V - with a recommended cold inflation pressure (Tire Pressure) of 33psi Front/Rear.

 

Using the industry standard Load Limit / Tire Pressure tables published by The Tire and Rim Association, Inc. in their Tire and Rim Yearbook (http://us-tra.org/), we find that the Load Limit for those tires at that pressure is 2,520 pounds.

 

When using tire sizes different from the stock tire, it is important to determine the Tire Pressure in the new tire which will match the Load Limit recommended by Toyota - in this case that is 2,520 pounds.

 

Toyota probably use many factors to determine their recommended Tire Pressure such as fuel efficiency, ride comfort, etc. which may account for some increase/decrease in the recommendation; but the two major contributing factors are the Load Limit of the tire in relation to the GAWR (Gross Axle Weight Rating) for the vehicle and whether the tire is a "P" tire or an "LT" tire.

 

Since the vehicle in question is an SUV, if a "P" tire is specified, the tire's Load Limit must be increased by 10% to accomodate probable periodic increased loading when compared to use on a passenger vehicle. If an "LT" tire is specified, then no such increase in Load Limit is required.

 

In our example, since Toyota specified a "P" tire on an SUV, then the base Load Limit required for the Land Cruiser is approximately 2,291 pounds, but this number had to be increased by 10% to account for the use of a "P" tire on an SUV. This 10% higher number is the 2,520 pounds.

 

So, what do we know so far?

 

If you want to put a "P" rated tire on your LC200, then the Tire Pressure must be adjusted to realize a Load Limit of 2,520 pounds.

 

If you want to put an "LT" rated tire on your LC200, then the Tire Pressure must be adjusted to realize a Load Limit of 2,291 pounds.

 

The new tires are the Nitto Terra Grapplers which are an "LT" tire - LT275/70R18 E 125S - Load Range E, with a Maximum Load of 3,640 pounds @ 80psi.

 

So, all we have to do is look up the LT275/70R18 tire in the Tire and Rim Association, Inc. Yearbook and find the cold inflation pressure that yields a Load Limit for that tire of approximately 2,291 pounds. According to those tables, a Tire Pressure of 40psi yields a Load Limit of 2,270 pounds. One could increase that recommendation by 1psi, if desired, which would result in a Load Limit of approximately 2,310 pounds.

For a "P" rated tire like the BFG Rugged Trail T/A in size P275/70R18 (http://www.tirerack.com/tires/tires.jsp?tireMake=BFGoodrich&tireModel=Rugged+Trail+T%2FA&partnum=77TR8RUGTTAOWL&vehicleSearch=false&fromCompare1=yes) then we would look up that tire size in the tables to find a Tire Pressure that is close to the recommended 2,520 pounds. We would find that a Tire Pressure of 32psi yields a Load Limit of 2,535 pounds.

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Re: presiune corecta pentru anvelope Toyota LC200

 

Se pare ca Astral a mutat topicul asta aici.

Faptul ca eu am gasit articolul cautand dupa masina mea, nu are nici o legatura cu modelul de masina.

Este general valabil pentru anvelopele LT (light truck) pe care multi dintre colegii forumisti le folosesc pentru off-road si banuiesc ca multi dintre useri nu stiu informatia asta care cred ca le-ar fi utila.

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