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Acceleration defined

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BLACK.PEARL

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A definition of acceleration.

 

 

* One Top Fuel dragster 500 cubic inch Hemi engine makes more horsepower

than the first 4 rows at the Le Mans.

 

* Under full throttle, a dragster engine consumes 3-1/2 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 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!

 

* Remember a run is only 4.5 seconds.

 

* Including the burnout the engine must only survive 9000 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 Porsche "twin-turbo" car. 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 Porsche hard up through the gears and blast across the starting line and past the dragster at an honest 200mph. 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.

 

That folks, is acceleration

 

 

 

:D

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Care to elaborate???

 

Quotet feil.. Rettet opp nå..

 

Bensin/luftblandingen når NESTEN en solid form, som NESTEN fører til "hydraulisk lås", (som om du skulle fullt opp med vann) ved full gass?

 

 

Er kanskje litt ute på viddene her nå, men slik tolket jeg det.

 

Edit: tror du mente at du ville ha mer detaljer ja, er litt trøtt.. er vel ikke så mye mer å si egentlig?

To change is easy, to improve is hard.

Mitt galleri

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Bensin/luftblandingen når NESTEN en solid form, som NESTEN fører til "hydraulisk lås", (som om du skulle fullt opp med vann) ved full gass?

 

Er kanskje litt ute på viddene her nå, men slik tolket jeg det.

 

Edit: tror du mente at du ville ha mer detaljer ja, er litt trøtt.. er vel ikke så mye mer å si egentlig?

 

Ja, er ingen racer på fysikk så jeg forsto ikke helt den setningen der..

Vanvittige krefter altså..

- VW Touran Mk1 TDI

- VW Golf Mk3 Variant 8v

- VW Golf Mk2 8v

 

Fiend Engineering

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Denne her skjønte ikke jeg helt: * Top Fuel Engines turn approximately 540 revolutions from light to light!

 

 

Light to light just means from the starting line to the finish line.

 

9500 RPM red line for 4.5 ET. 9500 / 60 = 158.3 Rev\Sec

 

158.3 Revs X 4.5 Sec = 712, 712 is more then the 540 above because the engine does not run at 9500RPM for the whole run.

 

 

 

 

Dette ble jeg forklart gjennom et annet forum.

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