Top Fuel info's

[wazzap]

'tschuldigung, für den beitrag in Englisch.
Aber ich denke das diese hochinteressanten fakten über die topfuel dragster einiges an staunen bei einigen hervorrufen könnte.
vielleicht hat jemand lust es ins deutsche zu übersetzten........

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 then 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 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 of 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.

A Top Fuel Dragster accelerates from 0-100 MPH in about 0.8 seconds.

A Top Fuel Dragster/Funny Car has a reverse force of 5 g's when both parachutes deploy simultaneously.

One a typical 1/4-mile pass, the Top Fuel cars consume 4-5 gallons+ of fuel for just the pass. The complete run (burnout, staging, and pass) uses 10-12 gallons of fuel. When the term "Gallons Per Mile" was first spoken, they had to be thinking of Top Fuel ...

Speaking again of fuel ... the fuel pump on a Top Fuel car delivers over 65 gallons of fuel per minute. Roughly equal to eight bathroom showers running at the same time.

Measured fuel line pressures in a Top Fuel Dragster operate between 400-500 psi.

Aerodynamics become life-threatening important so as to keep these cars under control. The averege wing on a Top Fuel car applies between 4,000 and 8,000 pounds of downforce (depending on angle and size).

With all this horsepower and force, parts have to be extermely durable. Especially when takes a mere 15/100th of a secound for 5000+ horsepower to reach the rear wheels. Now THAT'S throttle response!

Never complain about your street tires wearing out prematurely when the monster meats on a Top Fuel car are only good for roughly 2 miles, or 4-6 passes.

Exhaust exit angle is also important in that there is so much exhaust velocity (easier to compare as THRUST) that a slight variation in the angle will change the direction of the car. Even to the point that is say the car hits the wall and smashes a bank of exits or turns them downward it can literally throw the car into a roll


happy reading wünscht,
Andreas

[PaulZR-1]

Umweltsünder

[Big Block Schommi]

Das sind schon beindruckende Daten, nur wo soll der Wahnsinn noch hinführen?
Wie durchtrainiert muss man sein - Weltraumprogramm? - um das noch auszuhalten?
Mit fragenden Grüssen BBS