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Thread: REPORT: Mazda to slash weight by over 200 pounds in 2011

  1. #1
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    Default REPORT: Mazda to slash weight by over 200 pounds in 2011

    Filed under: Mazda


    2009 Mazda MX-5 Miata - Click above for high-res image gallery

    When the original fuel crisis hit the States in the 1970s, automakers scrambled to make smaller, more efficient transportation. The result was a lot of ill-packaged front-wheel drive suck better left in the deepest recesses of our collective consciousness. Since the mid '80s though, vehicles (and people) began growing at a steady rate to the point that the typical C-segment sedan is bigger and heavier than the run of the mill '90s midsize sedan.

    Mazda is no different than the competition when it comes to added tonnage, as product development chief Robert Davis tells Autoweek/Automotive News that each product cycle results in weight gain of about 80 pounds. That stops beginning in 2011, though, as the Japanese automaker begins dropping the weight of a typical Mazda by 220 pounds or more. Davis says the automaker will attack the problem from several angles, including using more aluminum and high strength steel, cutting the overall length of vehicles by three inches or more and utilizing smaller and more efficient powertrains. Mazda engineers are also being charged with finding innovative solutions to solve problems like how best to bond aluminum to steel. The automotive Weight Watchers plan will result in fuel economy gains of three to five percent without sacrificing safety.

    The weight loss isn't likely to happen throughout Mazda's entire lineup all at once, though, instead opting to drop pounds as vehicles come up for redesign. Mazda will also work to lose the weight without sacrificing the brand's Zoom Zoom roots. One of the first Mazda models expected to benefit from the companies weight loss goals is the MX-5 Miata. Rumors have been flying for months that the next Miata will be lighter than the already feathery roadster we have today. We'd say lighter is almost always better as long as the weight subtraction doesn't come at the expense of structural rigidity.

    We're all for Mazda cutting weight from all of its models, and we're hoping that other automakers follow suit. We're pretty sure we've had enough of 5,000 pounds SUVs and two-ton sedans, and we're guessing you have, too.

    [Source: Autoweek]REPORT: Mazda to slash weight by over 200 pounds in 2011 originally appeared on Autoblog on Thu, 12 Nov 2009 15:31:00 EST. Please see our terms for use of feeds.



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  2. Default

    Mazda engineers are also being charged with finding innovative solutions to solve problems like how best to bond aluminum to steel
    Just make more parts out of titanium. Its the only way the Nissan GT-R R34 was kept to ~1600kg... Bonding Aluminium to steel is not necessarily a good idea. They don't do this in aircraft design anymore due to early fatigue failures, so why do it in a car thats subject to similar if not more stress. Not to mention the issues with Bi-metalic corrosion. Aluminium and mild steel are the worst together - just add water for oxidation to occur. There are of course other issues such as differing rates of expansion/contraction. I bid Mazda good luck with this one.

    Another option would be all aluminium composites.

    I like that Mazda are trying to tackle weight problems to make more efficient cars, however I think their R&D and Ideas department has yet to turn the light on...
    Last edited by Wardski; 13-11-2009 at 02:29 PM.

  3. #3
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    Interesting, Jaguar have been successful with aluminum bodies and keeping the weight of their luxo barges down well below 2 tonnes, unlike other makes. Wonder how these fare in longevity and what processes are used?

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    i really quite like that mx5

  5. Default

    Is that an indicator down beside the fog lights ? or just a refelctor


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    could actually be an indicator

  7. #7

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    good to hear they doing the weight reduction thing as long as it doesnt skimp on structural integrity

  8. #8

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    Quote Originally Posted by blackbetty View Post
    Is that an indicator down beside the fog lights ? or just a refelctor

    Indicator is in headlight cluster....you will find this to be a reflector required by US laws.

    Its on all mazda models....situated at front side and rear of cars.

    Happy Motoring
    duglet

  9. #9

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    i notice its missing the round indicator on the front left quarter ?

    doesent the usa need additional side indicators ?

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