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Thread: Petrol vs diesel

  1. #65
    Not a good person scaryjim's Avatar
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    Re: Petrol vs diesel

    [QUOTE=peterb;3305441]You got me searching.. didn't find the chap in Australia - did find this though http://news.google.com/newspapers?ni...g=5236,3682431

    this engine will work equally as well with turf, sawdust, charcoal, rice dust, flour, and even coke as fuel
    I wants me a rice-burning car!!

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    Re: Petrol vs diesel

    I am switching to powdered coal.
    Deo Adjuvante non Timendum

  3. #67
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    Re: Petrol vs diesel

    Quote Originally Posted by DanceswithUnix View Post
    Petrol engine cars seem to be set to cruise around 3K rpm, diesels around 2K rpm, so the gearboxes have different ratios. So your torque at the flywheel is, assuming that 2/3 ratio difference in ratio setup, equivalent to a diesel making 420 lb-ft once you get to the wheels. Massive approximations used, ymmv, but it fits in with how cars I have driven have felt.
    That's a good point, I'd not considered comparing cars that way. Comparing redlines gives a similar sort of ratio: diesels well redline at around 4500 rpm, which if you multiply by 1.5 gives 6750, which is pretty close to turbo petrol redlines.

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