Definition of Acceleration - Ford Mustang Forum
LinkBack Thread Tools
post #1 of 2 (permalink) Old 09-05-2013 Thread Starter
PONY Member
hockman5's Avatar
Joined: Nov 2012
Location: Camarillo
Posts: 663
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 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 V-8 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 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 halfway, the engine is dieseling from compression,
plus the glow of exhaust valves at 1,400 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 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 redline is actually quite high at 9,500 rpm.

Assuming all the equipment is paid off,
that 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 you blast across the starting line
and you 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

1966 GT Coupe 4 speed, 289
hockman5 is offline  
Sponsored Links
post #2 of 2 (permalink) Old 09-28-2013
kiliona's Avatar
Joined: Aug 2012
Location: Pocatello
Posts: 125
Actually acceleration is a measurement of how much distance per an amount of time squared an object can travel... squared being the key factor x D

JK that was a very interesting read, if you wrote it yourself that's very impressive.

The closest I've come to watching top fuel dragsters is off a friends camera phone video when he took a trip to a track in vegas. even the video was incredible.

kiliona is offline  
Sponsored Links


Quick Reply

Register Now

In order to be able to post messages on the Ford Mustang Forum forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a VALID email address for yourself, otherwise you will not receive the necessary confirmation email needed to confirm, validate and activate your new AFM member account.

Failure to provide a VALID email address, will result in the cancellation of your new AFM member account registration.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are On

For the best viewing experience please update your browser to Google Chrome

Search Engine Friendly URLs by vBSEO 3.6.1