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Top fuel dragster facts. mind boggling

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  • Top fuel dragster facts. mind boggling

    * One dragster's 500-inch Hemi makes more horsepower then the first 8 rows at Daytona.

    * Under full throttle, a dragster engine consumes 1 1/2 gallons of nitro per second, the same rate of fuel consumption as a fully loaded 747 but with 4 times the energy volume.

    * The supercharger takes more power to drive than a stock hemi makes.

    * Even with nearly 3000 CFM of air being rammed in by the supercharger on overdrive, the fuel mixture is compressed into nearly-solid form before ignition. Cylinders run on the verge of hydraulic lock.

    * Dual magnetos apply 44 amps to each spark plug. This is the output of an arc welder in each cylinder.

    * At stoichiometric (exact) 1.7:1 air/fuel mixture (for nitro), the flame front of nitromethane measures 7050 degrees F.

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

    * Spark plug electrodes are totally consumed during a pass. After 1/2 way, the engine is dieseling from compression-plus the glow of exhaust valves at 1400 degrees F. The engine can only be shut down by cutting off its fuel flow.

    * If spark momentarily fails early in the run, unburned nitro builds up in those cylinders and then explodes with a force that can blow cylinder heads off the block in pieces or blow the block in half.

    * Dragsters twist the crank (torsionally) so far (20 degrees in the big end of the track) that sometimes cam lobes are ground offset from front to rear to re-phase the valve timing somewhere closer to synchronization with the pistons.

    * To exceed 300mph in 4.5 seconds dragsters must accelerate at an average of over 4G's. But in reaching 200 mph well before 1/2 track, launch acceleration is closer to 8G's.

    * If all the equipment is paid off, the crew worked for free, and for once NOTHING BLOWS UP, each run costs $1000.00 per second.

    * Dragsters reach over 300 miles per hour before you have read this sentence.

    * Top Fuel Engines ONLY turn 540 revolutions from
    light to light!

    * The redline is actually quite high at 9500rpm.

    * To give you an idea of this acceleration, the current TF dragster elapsed time record is 4.477 seconds for the quarter mile.This means that you could be coming across the starting line in your average Lingenfelter powered "twin-turbo" Corvette at 200 mph (on a FLYING START) and the dragster would BEAT you to the finish line FROM A DEAD STOP in a quarter mile distance!

  • #2
    Originally posted by DrThunder View Post

    * To give you an idea of this acceleration, the current TF dragster elapsed time record is 4.477 seconds for the quarter mile.This means that you could be coming across the starting line in your average Lingenfelter powered "twin-turbo" Corvette at 200 mph (on a FLYING START) and the dragster would BEAT you to the finish line FROM A DEAD STOP in a quarter mile distance!


    That is fucking insane
    Hench

    ATM anyone?

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    • #3
      another interesting fact... crews take apart and rebuild the engine after EVERY run. By the time the car is stopped at the other end of the track and being pushed back to the garage, there is a crew walking it already taking it apart.

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      • #4
        Have you ever seen a dragster in super slow mo? Its pretty crazy, the whole entire shell of the vehicle flexes like fucking crazy, it looks like it should shatter into a million pieces. Kinda cool to watch.
        Watch your backhoe, I'm the John Deere man.

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        • #5
          tire pressure also increases substantially by the end of the track
          1993 XJ sport 3.5" rustys 33" MTZ's armored.
          1999 sierra
          1967 M725 Big and Slow
          -Dan

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          • #6
            all of this is badass
            94 xj 4.0L, AW4, 242
            3" rusty's lift, 33x12.5 bfg km2's, custom front bumper

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            • #7
              Its unbelievable to watch top fuel or funny cars the noise is defening

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              • #8
                Actually some pretty fascinating facts.
                92 XJ 4 1/2" SkyJacker hybrid lift, 2 1/2" leafs, adj. shackle, JKS discos, T-case drop, braided hoses, adj t/b, 31x10.50 Cooper STT's and black steelies, D30 and 8.25.

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                • #9
                  that is fucking insane
                  #becauseJoeNitro

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