The DU Lounge
Related: Culture Forums, Support ForumsFor those that don't know about Top Fuel Dragsters and just how fast they go in less than 1000'
and some of the reactions by the spectators.

sop
(15,841 posts)MarineCombatEngineer
(15,922 posts)she's beautiful and her dad, John Force, is a legend in the FC category.
JohnnyRingo
(20,144 posts)* 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 fuel 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 dragsters 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 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 1/2 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 Gs. In order to reach 200 MPH well before half-track, the launch acceleration approaches 8 Gs.
* Top Fuel engines turn approximately 540 revolutions from light to light!
* Including the burnout, the engine must only survive 900 revolutions under load.
* The redline is actually quite high at 9500 RPM, so do the math
* 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.
Putting this all into perspective:
Lets say the 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 by it. You have the advantage of a flying start. You run the Vette hard up through the gears. You blast across the starting line & pass the dragster at an honest 200 MPH. Just as you pass the Top Fuel Dragster the tree goes green for both of you.
The dragster launches & 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 & not only caught, but nearly blasted you off the road when he passed you within a mere 1320 foot long race!
Oeditpus Rex
(42,630 posts)Though they take your breath away, Top Fuel, Funny Car and even a lot of the slower classes long ago became a sport of the well-heeled. I love the door-slammers, probably because I can well imagine spending every extra cent to squeeze another five horsepower from your basically stock 454 (though I was always a small-block guy because they're easier to work on and parts are less expensive).
You drive it to Baylands, Irwindale or wherever on Saturdays, pay the entry fee, tune it for a quarter-mile, go through tech and hope like hell you break 11 seconds without throwing a rod.
(Mind you, I never actually did that. I would've been happy to get into the 13s with what I had. But I sure thought about it a lot as I read the how-tos in Hot Rod every month.)
MarineCombatEngineer
(15,922 posts)I raced a couple of times there with my '62 Ranchero, now it, like many other drag strips, are history, but at least Pomona is still there along with a few others in SoCal, unfortunately Irwindale closed last year.
Oeditpus Rex
(42,630 posts)But I would've guessed not. The NHRA along with police departments and service organizations such as the Lions Club used to sponsor those days and nights to keep street racing down. But those clubs aren't around much anymore and I guess the cops don't have the budget or the time. So, kids are street racing again -- or just doing burnouts and stuff at "sideshows."
(When James Dean was killed, he was en route to a race in my home town sponsored by the Lions Club.)