Greasemonkey
Member
Registered: 17th Apr 02
Location: Drives a Tractor
User status: Offline
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A Lesson in Acceleration:
* One Top Fuel dragster 500 cubic inch Hemi engine makes more
horsepower than the first 4 rows at the Indy. 500.
* Under full throttle, a Top Fuel dragster engine consumes 1= gallon
of nitromethane per second; a fully loaded 747 consumes jet fuel at
the same rate with 25% less energy being produced.
* A stock Dodge 426 Hemi V8 engine cannot produce enough power to
drive the dragster's 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 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 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 the 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
at 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.
* The red-line is actually quite high at 9500 rpm.
* 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 riding the average $250,000 Honda MotoGP bike. 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 RC211V hard up through the gears and blast across
the starting line and past the dragster at an honest 200 mph (293
ft/sec). The 'tree' goes green for both of you at that moment. The
dragster launches and starts after you. You keep your wrist cranked
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!
Just found this an though it was wicked
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vibrio
Banned
Registered: 28th Feb 01
Location: POAH
User status: Offline
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so the engines last longer than R5GTT then
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Ditch
Member
Registered: 29th Nov 02
Location: St Albans Drives: JDM Celica GT4 WRC
User status: Offline
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and IS quicker 50-70 in 4th than Vib's punto 
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3CorsaMeal
Member
Registered: 11th Apr 02
User status: Offline
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kinda like my 5ltr 40v corsa then
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Siberia
Member
Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
User status: Offline
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awaits GsiSteve to tell us that his 106 would beat it off the line 
[Edited on 26-08-2004 by Siberia]
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drunkenfool
Member
Registered: 7th Feb 03
Location: Hereford Drives: Audi R8 V8
User status: Offline
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Thats incredible!
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Coblet
Member
Registered: 26th Jun 04
Location: Camberley, Surrey
User status: Offline
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Ultimate machines really, got me on the straight but I was wheel spinning in 3rd in the twisties and I had him through there
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Nobby
Member
Registered: 14th May 00
Location: 17 Boring road, Dullsville, Snorefolk
User status: Offline
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lol
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