Top Fuel Dragster

[CaptJackG]

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!

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.

Top fuel engines turn approximately

540 revolutions from light to light!

Including the burnout, the engine must only survive 900 revolutions under load.

*? for 4.5 seconds! ?

The

redline

is actually quite high at 9,500 rpm.

Assuming all the equipment is paid off, the crew worked for free, and for once NOTHING BLOWS UP, each run costs an estimate

$1,000

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 friend, is ACCELERATION!

[Crash]

I used to go to the drags a lot in the late 60s and through the 70s. The sound and the smell of the big cars was fantastic. The Uk only had a few Top Fuel and funnies and they ran about a second slower that the US cars but still very impressive to see.

[PapaBear]

Hmm top fuel dragsters, used to go to Santa Pod and watch the top fuel meets, absolutely mind blowing

You might want to check this video out!!!

Edited November 11, 2011 by BluBear
Vid link

[Jabo]

Pfft. Nothing compared to a Robin Reliant between the lights...

Jabo

[Mayhem]

Had a chance to go to the Gator Nationals in Florida some years back. The top fuel and funnies are amazing in person. Video really doesn't do them justice. The sound hits you right in the chest and you can practically feel your organs being rearranged. These cars have no cooling systems as they are designed for only on purpose and ever run longer then a few minutes. I believe each cylinder had 2 spark plugs and 2 coils per plug. They fire slightly out of sync to get the maximum burn. The pistons are actually loose inside the cylinder as there is so much power created and hit such high RPM you have to have enough blow-by or the engine will explode.The nitro-methane has a sweet smell but it will burn your eyes. I don't know how the guys standing out in the middle of the track stand it. They have a new facility in Concord North Carolina not too far away from me. 4 lanes of Drag racing insanity. The sound must be deafening. Just to give you a sense of what its like, watch to see how the camera shakes when the cars let loose. This dragway kinda sucks though as you can't get right up next to the wall. At Rockingham you can practically get right up next to them.