Trivia Page.
The stats and details on this page refer to the Top Fuel Dragsters, which is essentially the same engine in Nitro Thunder.
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 Top Fuel dragster engine consumes one and a half 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
426 Hemi V8 engine cannot produce enough power to drive the
dragster's 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
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 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 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 at 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
red-line is actually quite high at 9500 rpm.
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 riding the average $250,000 Honda Moto GP bike. 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 RC211V hard up through the gears and blast across
the starting line and past the dragster at an honest 200 mph (293
ft/sec). The 'tree' goes green for both of you at that moment. The
dragster launches and starts after you. You keep your wrist cranked
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.
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