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Nitro is for racing!!!!

Discussion in 'The Lounge' started by 76zimmer, Dec 12, 2006.

  1. 76zimmer

    76zimmer Flyin Rat Premium Member GMOTM Winner

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    Maybe a repost....maybe not, BUT its mind bending.....its a couple years ago, since now the record is: 4.428/336mph

    Anyhow...

    Acceleration Defined…. (Per the Keith Black Website)

    One top fuel dragster 500 cubic inch Hemi engine makes more horsepower than the first 4 rows of stock cars at the Daytona 500. COOL :D :D

    Under full throttle, a dragster engine consumes 1-1/2 gallons of nitro methane per second; a fully loaded 747 consumes jet fuel at the same rate with 25% less energy being produced.

    A stock Dodge Hemi V8 engine cannot produce enough power to drive the dragster's supercharger.:haha: :haha: :haha:
    With 3,000 CFM of air being rammed in by the supercharger on overdrive, the fuel mixture is compressed into a near-solid form before ignition.

    Cylinders run on the verge of hydraulic lock at full throttle.
    At the stoichiometric (stoichiometry: methodology and technology by which quantities of reactants and products in chemical reactions are determined) 1.7:1 air/fuel mixture of nitro methane, the flame front temperature measures 7,050 deg F.:eek1: :eek1:

    Nitro methane burns yellow. The spectacular white flame seen above the stacks at night is raw burning bydrogen, dissociated from atmospheric water vapor by the searing exhaust gases.

    Dual magnetos supply 44 amps to each spark plug. This is the output of an arc welder in each cylinder.:weld: :weld:
    Spark plug electrodes are totally consumed during a pass. After halfway, the engine is dieseling from compression, plus the glow of exhaust valves at 1,400 deg F. The engine can only be shut down by cutting the fuel flow.

    If spark momentarily fails early in the run, unburned nitro builds up in the affected cylinders and then explodes with sufficient force to blow cylinder heads off the block in pieces or split the block in half.:yikes: :yikes:

    In order to exceed 300 mph in 4.5 seconds, dragsters must accelerate an average of over 4G's. In order to reach 200 mph (well before half-track), the launch acceleration approaches 8G's.

    Dragsters reach over 300 miles per hour before you have completed reading this sentence.
    Top fuel engines turn approximately 540 revolutions from light to light! Including the burnout, the engine must only survive 900 revolutions under load.

    The redline is actually quite high at 9,500 rpm.


    Assuming all the equipment is paid off, the crew worked for free, and for once NOTHING BLOWS UP, each run costs an estimate $1,000.00 per second.

    The current top fuel dragster elapsed time record is 4.441 seconds for the quarter mile (10/05/03, Tony Schumacher). The top speed record is 333.00 mph (533 km/h) as measured over the last 66' of the run (09/28/03 Doug Kalitta).

    Putting all of this into prespective:
    You are driving the average $140,000 Lingenfelter "twin-turbo" powered Corvette Z06. Over a mile up the road, a top fuel dragster is staged and ready to launch down a quarter mile strip as you pass. You have the advantage of a flying start. You run the 'Vette hard up through the gears and blast across the starting line and pass the dragster at an honest 200 mph. The "tree" goes green for both of you at that moment.

    The draster launches and starts after you. You keep your foot down hard, but you hear an incredibly brutal whine that sears your eardrums and within 3 seconds, the dragster catches and passes you. He beats you to the finish line, a quarter mile away from where you just passed him.

    Think about it, from a standing start, the dragster had spotted you 200 mph and not only caught, but nearly blasted you off the road when he passed you within a mere 1,320 foot long race course.

    ... and that my friend, is ACCELERATION!:bow: :bow: :bow:
     
  2. chevyfumes

    chevyfumes Court jester

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    Watch for the muzzleflash!
    Cool....
     
  3. sled_dog

    sled_dog 1 ton status

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    not to be the crappy person to pick this apart, but the lowest "horsepower" rating I can find for a 747 is 80,000.... which is about 10 times that of a nitro car on a good day.

    And the idea of pressure turning a liquid to a solid is absurd. Its still a liquid and its still a gas(the air in the mixture) they are just compressed gas and liquid....

    And I have never found any truth to the whole "diesel after half track" thing. All I have found is that the spark plugs are specifically placed at the intake ports to cool them as the intake charge enters the cylinders.

    Yes I do enjoy being a wet blanket....
     
  4. beater_k20

    beater_k20 Banned

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  5. 76zimmer

    76zimmer Flyin Rat Premium Member GMOTM Winner

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    You Bastard, don't rain on my parade:wink1: ......I didn't make it up:surepal: .....I guess you could argue with Keith Black though.
     
    Last edited: Dec 12, 2006
  6. MetalMelter

    MetalMelter 1/2 ton status

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    For anyone that has never seen Top Fuel racing in person,GO SEE IT...

    Worth every penny spent, it will change the way you see life..Awesome.

    I kind of like this team for some reason:D.

    Nothing like Nitromethane in the morning...:bow::bow::bow:


    1024dragsterBack.jpg

    800lasVegasBack.jpg
     
    Last edited: Jan 2, 2010
  7. MetalMelter

    MetalMelter 1/2 ton status

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    photo bump:D

    800hartleyBack.jpg
     
  8. wasted wages

    wasted wages 3/4 ton status

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    under load being the Key words,,,,,,,:eek1:
     

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