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Thread: Definition of acceleration...

  1. #1
    Senior Member freeriders98's Avatar
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    Name: Garrett

    Default Definition of acceleration...



    DEFINITION OF ACCELERATION...

    There are no rockets or airplanes built by any government in the world that can accelerate from a standing start as fast as a Top Fuel Dragster or Funny Car!



    DEFINITION OF ACCELERATION

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

    It takes just 15/100ths of a second for all 6,000+ horsepower of an NHRA Top Fuel dragster engine to reach the rear wheels.

    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.

    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.

    Nitro methane 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.

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

    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.

    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 4.428 seconds for the quarter mile (11/12/06, Tony Schumacher, at Pomona , CA ). The top speed record is 336.15 mph as measured over the last 66' of the run (05/25/05 Tony Schumacher, at Hebron , OH ).

    Putting all of this into perspective:

    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 dragster 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!

  2. #2
    Shabbat Shalom aaw749r's Avatar
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    Default Re: Definition of acceleration...

    Another interesting Top Fuel motor fact. The camshaft is ground progressivly out of time from the front to the rear of the motor to compensate for the astonishing ammount of twist, in excess of 45 degrees, that is generated in the crankshaft so the cam is in time with the crank shaft when the motor is under full load.
    2Crn 7-14
    If my people, which are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then will I hear from heaven, and will forgive their sin, and will heal their land.

  3. #3
    Yo sólo sé que no sé nada mrlopez's Avatar
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    Default Re: Definition of acceleration...

    Quote Originally Posted by aaw749r View Post
    Another interesting Top Fuel motor fact. The camshaft is ground progressivly out of time from the front to the rear of the motor to compensate for the astonishing ammount of twist, in excess of 45 degrees, that is generated in the crankshaft so the cam is in time with the crank shaft when the motor is under full load.
    progressivly?? Progressively
    ammount?? amount
    Hey you start it lol
    Sorry for hijacking the tread but Ray is cool guy and good friend
    I believe that everything happens for a reason. People change so that you learn to let go, things go wrong so that you appreciate them when they're right, and sometimes good things fall apart so better things can fall together.

  4. #4
    Dualsport Whore montibank's Avatar
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    Default Re: Definition of acceleration...

    Quote Originally Posted by aaw749r View Post
    Another interesting Top Fuel motor fact. The camshaft is ground progressivly out of time from the front to the rear of the motor to compensate for the astonishing ammount of twist, in excess of 45 degrees, that is generated in the crankshaft so the cam is in time with the crank shaft when the motor is under full load.
    Nice...
    Central California Dualsport Enthusiast
    Please don't feed the trolls
    http://www.facebook.com/montibank

  5. #5
    Senior Member OG CBR Ryder's Avatar
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    Default Re: Definition of acceleration...

    This is amazing! It's nearly the equivalent of strapping yourself to a bomb with a steering wheel! Some amazing physics are playing out here.

  6. #6
    its a disease MadKaw's Avatar
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    Default Re: Definition of acceleration...

    dragsters are quick. but I think an AIM-7 fired off an F-15 accelerates to over mach 4 in just a few seconds
    1968- "two stroke power cost only a fraction of what had to be spent to get the same from a four stroke"

  7. #7
    Shabbat Shalom aaw749r's Avatar
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    Default Re: Definition of acceleration...

    ^^^^They are the quickest things with people in them Mr. Pickey.^^^^
    Last edited by aaw749r; Dec 3rd, 2010 at 09:38 PM.
    2Crn 7-14
    If my people, which are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then will I hear from heaven, and will forgive their sin, and will heal their land.

  8. #8
    Shabbat Shalom aaw749r's Avatar
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    Default Re: Definition of acceleration...

    Quote Originally Posted by mrlopez View Post
    progressivly?? Progressively
    ammount?? amount
    Hey you start it lol
    Sorry for hijacking the tread but Ray is cool guy and good friend
    But I can spell

    ALIEN!

    (pssst . . . . . . it's thread)
    Last edited by aaw749r; Dec 3rd, 2010 at 10:50 PM.
    2Crn 7-14
    If my people, which are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then will I hear from heaven, and will forgive their sin, and will heal their land.

  9. #9
    Senior Member SXV 550's Avatar
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    Default Re: Definition of acceleration...

    Quote Originally Posted by MadKaw View Post
    dragsters are quick. but I think an AIM-7 fired off an F-15 accelerates to over mach 4 in just a few seconds
    Jan is correct. ALL the solid propellant rockets of this type are WAY faster than dragsters. Earlier I looked up NASA test specs of a Phoenix missle and it accelerated to mach 5 in 8 seconds.That is over 3,000 mph.. I got to doing something else and ate dinner.. Was going to post the link, didn't and not looking for it again.

    Top fuel i have followed for 50 yrs and I love it, BUT the smaller solid fueled rockets are NO CONTEST

  10. #10
    Sal****er JonJon's Avatar
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    Default Re: Definition of acceleration...

    Quote Originally Posted by mrlopez View Post
    progressivly?? Progressively
    ammount?? amount
    Mr. Lopez offering grammar advice?
    Braaap!

  11. #11
    Yo sólo sé que no sé nada mrlopez's Avatar
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    Default Re: Definition of acceleration...

    Quote Originally Posted by JonJon View Post
    Mr. Lopez offering grammar advice?
    He's been on my butt being a smart butt about my typing, so I'm just trying to get him back
    I believe that everything happens for a reason. People change so that you learn to let go, things go wrong so that you appreciate them when they're right, and sometimes good things fall apart so better things can fall together.

  12. #12
    Shabbat Shalom aaw749r's Avatar
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    Default Re: Definition of acceleration...

    Quote Originally Posted by mrlopez View Post
    He's been on my butt being a smart butt about my typing, so I'm just trying to get him back
    Just trying to help you get your citizenship buddy. In the oral exam they'll ask you how your are going to fix the hole in your shirt and you tell them "with a needle and tread". You'll just be deported and that would make me very sad. I might even cry just a little.
    2Crn 7-14
    If my people, which are called by my name, shall humble themselves, and pray, and seek my face, and turn from their wicked ways; then will I hear from heaven, and will forgive their sin, and will heal their land.

  13. #13
    Yo sólo sé que no sé nada mrlopez's Avatar
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    Default Re: Definition of acceleration...

    Quote Originally Posted by aaw749r View Post
    Just trying to help you get your citizenship buddy. In the oral exam they'll ask you how your are going to fix the hole in your shirt and you tell them "with a needle and tread". You'll just be deported and that would make me very sad. I might even cry just a little.
    thanks
    I believe that everything happens for a reason. People change so that you learn to let go, things go wrong so that you appreciate them when they're right, and sometimes good things fall apart so better things can fall together.

  14. #14
    mmmm speeeed speedjunkie's Avatar
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    Default Re: Definition of acceleration...

    Those are some awesome facts.
    Enjoy the moments, they wont last forever

  15. #15
    Senior Member dzydvl33's Avatar
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    Default Re: Definition of acceleration...

    Pssshhhhhhh whatever... When they put handle bars on em and sit on the outside with no harness or saftey cage THEN I'll be impressed LMAO
    It's not about being the fastest, it's about making it home safe. RIDE SAFE EVERYONE!
    Joel

  16. #16
    Senior Member Jetstream01's Avatar
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    Default Re: Definition of acceleration...

    Hah Joel I was just about to text you a link to this.

    Awesome post! I never knew most of that stuff!
    Old sport bikes just have more character.

  17. #17
    Losing the rear... HamRDown's Avatar
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    Default Re: Definition of acceleration...

    Apparently my Garmin GPS can't keep up with the modded Fizzy either. I held it to the throttle stop from 60-155 real quick. Checked my GPS when I got home and it said my Top Speed was 302 mph!! Guess it can't keep up

    Too funny...

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