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Car weight limits are a big, fat problem

Discussion in 'Prius, Hybrid, EV and Alt-Fuel News' started by Tideland Prius, Sep 18, 2007.

  1. Tideland Prius

    Tideland Prius Moderator of the North
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    Some motorists may be too big for their cars.

    The growing girth of Americans is colliding with government-mandated warning labels on all 2006 or newer cars that list the maximum weight — passengers and cargo — that's safe to carry.

    Many two-seat sports cars, including Mazda MX-5 Miata and Chevrolet (GM) Corvette, aren't certified to carry two 200-pound adults, according to a government formula aimed at tire safety.

    Many five-passenger vehicles are rated about 850 pounds, maxxing out if their five occupants weigh more than 170 pounds each. Six 200-pounders would overload the seven-passenger Dodge Grand Caravan minivan.

    The limitations are stamped on a "Tire and Loading Information" plate on the driver's side door frame. The ratings are an outgrowth of the 2000 Firestone tire recall, in which overloading was considered a factor that could cause tires to fail. Weight limits are important because automakers could claim they don't have responsibility for a component failure or a crash if a vehicle is overloaded.

    Full Article
     
  2. SureValla

    SureValla Member

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    <div class='quotetop'>QUOTE(Tideland Prius @ Sep 18 2007, 02:57 PM) [snapback]514416[/snapback]</div>
    I dont have my prius inside door on me right now: problem with the prius?
     
  3. Tideland Prius

    Tideland Prius Moderator of the North
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    Hmmm.. I could've sworn I put this in the FHOP forum...

    Unless the news forum can be changed to "Automotive News"

    I believe the Prius' weight limit is 836lbs.
     
  4. FL_Prius_Driver

    FL_Prius_Driver Senior Member

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    Step 1 - Install weighing devices in the car seats. (Already done for the passenger seat of a 2007 Prius)

    Step 2 - Install tire pressure monitoring devices. (Already done for the 2007 Prius)

    Step 3 - Establish weight standards for each car (in progress)

    Step 4 - Put interlock in car preventing operation if overloaded.


    Just Joking? (I really don't know.)
     
  5. Per

    Per New Member

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    According to the manual, maximum load for the Prius is 810 pounds, so with 5 people in the car, average weight needs to be less than 162 pounds including clothes and accessories.
    Practically speaking, you really only need to worry about this if your tires are underinflated, which was possibly the problem with the Firestone/Explorer issue, along with overspeeding the tires. A lot of Prius owners tend to overinflate the tires from Toyota's recommendations, so it should not be a problem.
     
  6. Duffer

    Duffer Member

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    Just a wild guess, I bet that big honking SUVs have no problem carrying the extra weight of the average American. Could this be another salvo in the step up to an SUV war on America? Forget about the energy problems facing us now and our children tomorrow, step up to an SUV. I thought that engineers started with a target weight for the passengers to be carried and then designed the vehicle to match or exceed the specs, perhaps the tail does wag the dog and engineers are idiots.
     
  7. chogan

    chogan New Member

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    <div class='quotetop'>QUOTE(clearview22 @ Sep 19 2007, 07:47 AM) [snapback]514723[/snapback]</div>
    The first part of your comment was exactly the way this struck me when I read this originally. In the article I read, the "twist" at the end was that your insurance won't cover you if you're in an accident and total passenger weight exceeds the limit. Not that I've looked into it, but I've never heard of an insurer denying claims because your (properly seated, properly belted) passengers were overweight for the car, nor have I ever heard of an insurer weighing the driver and passengers after an accident. So it struck me as another planted story on the evils of normal-sized vehicles.
     
  8. Tideland Prius

    Tideland Prius Moderator of the North
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    <div class='quotetop'>QUOTE(clearview22 @ Sep 19 2007, 04:47 AM) [snapback]514723[/snapback]</div>
    Well if you check the Navigator, assuming no cargo and carrying 8 passengers, each of them must weigh no more than 181.5 lbs. For the MKX, it's 181.8 lbs

    The CX-7 has the same capacity as its sibling the Mazda3 and LESS capacity than the Nissan Versa

    The Highlander's per passenger weight limit is 171.4 lbs

    So SUVs aren't immune either.
     
  9. Bill Lumbergh

    Bill Lumbergh USAF Aircraft Maintainer

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    Overloaded cars aren't that big of a deal.

    [​IMG]
     
  10. TonyPSchaefer

    TonyPSchaefer Your Friendly Moderator
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    <div class='quotetop'>QUOTE(Boxster...WRX...Prius? @ Sep 19 2007, 04:56 PM) [snapback]514985[/snapback]</div>
    HOLY FREAKIN' CRAP!!! :eek:
     
  11. Tideland Prius

    Tideland Prius Moderator of the North
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    <div class='quotetop'>QUOTE(Boxster...WRX...Prius? @ Sep 19 2007, 02:56 PM) [snapback]514985[/snapback]</div>
    Apparently SUVs have more cargo space than that.... not!
     
  12. priusenvy

    priusenvy Senior Member

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    Weight limits are for sissies:

    [​IMG]
     
  13. HTMLSpinnr

    HTMLSpinnr Super Moderator
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    Funny, for airplanes, you must legally know the weight and balance of the plane before you fly. Some 2 seaters are only certified for 2 FAA (170lb) adults plus fuel. Funny how that doesn't seem to work for cars.
     
  14. n8kwx

    n8kwx Member

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    <div class='quotetop'>QUOTE(htmlspinnr @ Sep 19 2007, 11:49 PM) [snapback]515141[/snapback]</div>
    Same problem there!!!

    A few years ago (maybe 4 now) there was a regional turboprop down in the Southeast that crashed. There was an issue with the elevator cables, but the NTSB also concluded that weight was an issue. The current FAA requirements were similar ~150 or so for a passenger. There was talk about raising it, but I haven't heard of anything since.


    And boats:

    A couple of years ago, a tour boat capsized on one of New York's finger lakes. Weight was an issue there too. The Coast Guard was the same way. Approx ~150ish for a passenger. Same talk about raising the weight requirements.
     
  15. Angelus

    Angelus New Member

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    That's kinda scary since I'm 6'4" and 225 pounds and not fat by any means. Who are these mythical 150lb people? Do they factor in toddlers and newborns with those weight figures? I think they are in serious need of updating.

    This was a report from 2004

    "...the average height of a man aged 20-74 years increased from just over 5'8" in 1960 to 5'9½" in 2002, while the average height of a woman the same age increased from slightly over 5'3" 1960 to 5'4" in 2002.

    Meanwhile, the average weight for men aged 20-74 years rose dramatically from 166.3 pounds in 1960 to 191 pounds in 2002, while the average weight for women the same age increased from 140.2 pounds in 1960 to 164.3 pounds in 2002."

    That makes the average weight 178 pounds and the average height almost 5'7".