
It seems like the first thing many do after buying a new corvette, is to make some modifications in hopes of making the new ride faster off the line - Who wants to get dusted off the line by a Honda or Focus, etc? Gotta have more horsepower - Add ram air, change the exhaust, some have even changed cams and heads. This will put things in real prospective:
* 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 11.2 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 merely drive the
dragster's supercharger.
* With 3000 cubic feet per minute 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 stichiometric 1.7:1 air/fuel mixture for nitro methane the
flame front temperature measures 7050 degrees 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 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.
* Dragsters reach over 300 MPH before you have completed reading this sentence.
* In order to exceed 300 MPH in 4.5 seconds, dragsters must accelerate an
average of over 4 G's. In order to reach 200 MPH well before half-track, the
launch acceleration approaches 8 G's.
* Top Fuel engines turn approximately 540 revolutions from light to
light!
* Including the burnout, the engine must only survive 900 revolutions
under load.
* The engine’s redline is actually quite high at 9500 RPM.
* THE BOTTOM LINE: Assuming all the equipment is paid off, the crew worked for
free, & for once, NOTHING BLOWS UP, each run costs an estimated $1,000 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 this all 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 & 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 & pass the dragster at an honest 200 MPH. The
'tree' goes green for both of you at that moment.
The dragster launches & starts after you. You keep your foot down hard, but you
hear an incredibly brutal whine that sears your eardrums & within 3 seconds the
dragster catches & 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 & not only caught, but nearly blasted you off
the road when he passed you within a mere 1320 foot long race!
Now that, is acceleration!