pig rig
+1y
HERE ARE SOME COOL FACTS ABOUT TOP FUEL DRAGSTERS....
* One Top Fuel dragster 500 cubic inch Hemi engine makes more
horsepower than the first 4 rows at the Daytona 500.
* Under full throttle, a dragster engine consumes 1-1/2 gallons of
nitromethane 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 supercharger.
* With 3000 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 for nitromethane the flame front
temperature 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.
* 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 ½
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 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 9500rpm.
* The Bottom Line; Assuming all the equipment is paid off, the crew
worked for free, and for once NOTHING BLOWS UP, each run costs an
estimated $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 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 past 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 1320 foot long race course.