[audi] Uk fastest road legal car

Alan Pritchard apritchard at seaeye.com
Mon Mar 1 07:37:01 EST 2004

Oh, yes, I understand the difference to drag cars.
But... a 2000hp road legal car....... That is a different kettle of fish

Best Regards,

Alan Pritchard,
Mechanical design engineer,
Network administrator.

Seaeye Marine LTD.
+44 (0)1329 289000

 -----Original Message-----
From: 	Kent McLean [mailto:kentmclean at mindspring.com] 
Sent:	01 March 2004 12:32
To:	quattro at audifans.com
Subject:	Re: [audi] Uk fastest road legal car

"Alan Pritchard" <apritchard at seaeye.com <mailto:apritchard at seaeye.com>> 
 > The bit of the show I caught was the 0-60 run. <snip>
 > Then the sport Quattro.... Oh.... Not just any.... Dialynx's silver sprt
 > Quattro, you guys seen it on the vids??? Hehe...... 3.07 seconds

Bah, that's not fast.  The best example of fast that I know of is this:
[If you like, skip down to "Putting all of this into perspective:"]

 > First, some useful info:
 > * 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
 >    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 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 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 US $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 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 past 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 1320 foot long race course.
 > That, folks, is acceleration.

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