Top fuel dragster stats

Caporegime
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Co Durham
Got sent this tonight and thought I would share

Amazing stats .. . . . .

Read this through slowly and try to comprehend the amount of force produced in just under 4 seconds!
There are no rockets or airplanes built by any government in the world that can accelerate from a standing start as fast as a Top Fuel Dragster or Funny Car!
DEFINITION OF ACCELERATION
One top fuel dragster 500 cubic-inch Hemi engine makes more horsepower than the first 4 rows of stock cars at the Daytona 500.
It takes just 15/100ths of a second for all 6,000+ horsepower of an NHRA Top Fuel dragster engine to reach the rear wheels.
Under full throttle, a dragster engine consumes 1-1/2 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 drive the dragster's supercharger..
With 3,000 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 of nitro methane, the flame front temperature measures
7,050 deg. 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 halfway, the engine is dieseling from compression, plus the glow of exhaust valves at 1,400 deg 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.
This is the amazing part …..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 9,500 rpm.
Assuming all the equipment is paid for, the crew worked for free, and for once NOTHING BLOWS UP, each run costs an estimate $1,000.00 per second.
The current top fuel dragster elapsed time record is 4.428 seconds for the quarter mile (11/12/06, Tony Schumacher, at Pomona , CA ).
The top speed record is 336.15 mph as measured over the last 66' of the run (05/25/05 Tony Schumacher, at Hebron , OH ).
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 pass 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 1,320 foot long race course.
...... And that my friends, is ACCELERATION!
 
Totally awesome, but a little out of date - they talk about 8000 bhp these days :p

Thing is, how can they measure it? No-one makes a dyno that can tell them exactly how powerful the engines that they're building are! They can guestimate, and figure on horsepower required to achieve the times set, but there's a lot of wobble in those figures.

This is a good video - shows how the tyres distort when the cars launch. Distort too much, and the car will shake itself to bits. Too little, and something very expensive indeed will be destroyed....

 
Thing is, how can they measure it? No-one makes a dyno that can tell them exactly how powerful the engines that they're building are! They can guestimate, and figure on horsepower required to achieve the times set, but there's a lot of wobble in those figures.

This is a good video - shows how the tyres distort when the cars launch. Distort too much, and the car will shake itself to bits. Too little, and something very expensive indeed will be destroyed....

I think that these days weighing the car and doing a run with an accelerometer would be almost as accurate as a rolling road.
Even an app on my iPhone and a guesstimate on weight was good enough to get my car's BPH to within 10%
 
I'd recommend heading to Santa Pod to watch the Top Fuel cars in the flesh. No video comes even slightly close to demonstrating the ferocity of the noise and acceleration.

Can stand about 10m from the cars as they launch at Santa Pod, the noise makes your eyeballs vibrate in their sockets and I've seen people fall over / legs give in in shock at the volume. lol.
Burnt Nitro Meth smells great too :D
 
used to go to Sana Pod years ago when I lived nearer, stand near the start and feel the power and noise, even with the engines just ticking over.
The trouble is nowadays we dont seem to have many dry and sunny weekends, so I imagine the races are called off quite often, although they never did have all that many top fuel dragsters racing. and it was always very special
Would love to go to the USA and watch it
 
Got sent this tonight and thought I would share

Amazing stats .. . . . .


Dragsters reach over 300 miles per hour before you have completed reading this sentence.

That one says it all for me, what amazing machines!

Nice vid above with the slowmo on the tyres too!
 
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