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Old 11-28-2012, 05:59 PM   #1
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Acceleration

My dad sent me this email and thought i would share. Pretty cool.

For all you motorheads







Thought you might find this interesting................



ACCELERATION!



Read this thru slowly and try to comprehend the amount of force
produced in just under 4 seconds! The last paragraph puts it all
into perspective !

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...and that includes any aircraft
launched by a catapult from an aircraft carrier. Nothing can
compare...




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 (0.15) of a second for all 6,000+
horsepower (some believe 8,000 HP is more realistic - there are no
dynomometers capable of measuring) of an NHRA Top Fuel dragster
engine to reach the rear wheels.

Under full throttle, a dragster engine consumes 1-1/2 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'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 nitromethane, the flame
front temperature measures 7,050 deg F. (Oxy-acetylene on "cut" is
6,300)

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 one 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.

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 $1,000.00
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 instant.

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!
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Old 11-30-2012, 12:13 PM   #2
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Freaking awesome. Dragsters are cool, but I don't think they are as cool as a regular joe building his own car in his garage with a bunch of beer and buddies. They are incredible machines though.
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Old 12-01-2012, 02:44 PM   #3
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Quote:
Originally Posted by BenGT07 View Post
Freaking awesome. Dragsters are cool, but I don't think they are as cool as a regular joe building his own car in his garage with a bunch of beer and buddies. They are incredible machines though.
Ya I would love to go watch one race and get tore down in so little time
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Old 12-01-2012, 11:00 PM   #4
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Quote:
Originally Posted by sally2002 View Post
My dad sent me this email and thought i would share. Pretty cool.

For all you motorheads

Thought you might find this interesting................

ACCELERATION!

Read this thru slowly and try to comprehend the amount of force
produced in just under 4 seconds! The last paragraph puts it all
into perspective !

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...and that includes any aircraft
launched by a catapult from an aircraft carrier. Nothing can
compare...

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 (0.15) of a second for all 6,000+
horsepower (some believe 8,000 HP is more realistic - there are no
dynomometers capable of measuring) of an NHRA Top Fuel dragster
engine to reach the rear wheels.

Under full throttle, a dragster engine consumes 1-1/2 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'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 nitromethane, the flame
front temperature measures 7,050 deg F. (Oxy-acetylene on "cut" is
6,300)

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 one 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.

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 $1,000.00
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 instant.

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!
Insane!
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