DEFINITION OF ACCELERATION

HALFFAST · 08-13-2009, 07:01 PM

This is a post from a friend made on a sim racing forum I'm a member. I found it to be a very cool read so thought I'd share it here. Enjoy

--------------------------------------------------------------------------

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 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 nitro methane, the flame front temperature measures 7,050 deg 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 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.

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, 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 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 friends, is ACCELERATION!

1320junkie · 08-13-2009, 07:04 PM

repost..cuz I posted it..lol...still a good post though

HALFFAST · 08-13-2009, 07:23 PM

crap- didn't realize it's on this forum, I saw it off a different forum-sorry man. Are You Mike by chance? Anyway if a Mod see's this and wants to delete feel free seeing as it is a repost.

Cheers

1320junkie · 08-13-2009, 07:32 PM

Quote:

Originally Posted by HALFFAST

crap- didn't realize it's on this forum, I saw it off a different forum-sorry man. Are You Mike by chance? Anyway if a Mod see's this and wants to delete feel free seeing as it is a repost.

Cheers

No I am not mike..no worries it can stay..the mod in me says so..lol

PQ · 08-13-2009, 07:35 PM

Someone was gonna do it.

*Milk 1027* · 08-13-2009, 07:36 PM

Quote:

Originally Posted by 1320junkie

No I am not mike..no worries it can stay..the mod in me says so..lol

There's a mod somewhere in there?

patriotpa · 08-13-2009, 07:37 PM

Which mod is in you, 1320?

wait....nevermind...I'm not sure I want to know!

1320junkie · 08-13-2009, 07:37 PM

Quote:

Originally Posted by Milk 1027

There's a mod somewhere in there?

Quote:

Originally Posted by patriotpa

Which mod is in you, 1320?

wait....nevermind...I'm not sure I want to know!

lmao

http://www.camaro5.com/forums/showpo...4&postcount=32

PQ · 08-13-2009, 07:48 PM

So now what?

1320junkie · 08-13-2009, 07:52 PM

Quote:

Originally Posted by irpq11

So now what?

You print this out and place it in front of your Camaro in hopes that it will be faster...

PQ · 08-13-2009, 08:15 PM

Quote:

Originally Posted by 1320junkie

You print this out and place it in front of your Camaro in hopes that it will be faster...

Remember. My car can't learn, much less read.

manimsoblack · 08-14-2009, 02:54 AM

Quote:

Originally Posted by 1320junkie

You print this out and place it in front of your Camaro in hopes that it will be faster...

as soon as i realized who you said that too i almost fell out of my chair laughing.

1320junkie · 08-14-2009, 08:42 AM

Quote:

Originally Posted by manimsoblack

as soon as i realized who you said that too i almost fell out of my chair laughing.

LMAO..lol..i though his car was just slow...speed wise..but now I guess he is saying it's slow as in it's a rah-tard(Hangover movie reference)

08-13-2009, 07:01 PM	#1
HALFFAST Drives: 2010 Chevy Camaro Join Date: Jul 2009 Location: CANADA Posts: 248	DEFINITION OF ACCELERATION This is a post from a friend made on a sim racing forum I'm a member. I found it to be a very cool read so thought I'd share it here. Enjoy -------------------------------------------------------------------------- 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 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 nitro methane, the flame front temperature measures 7,050 deg 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 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. 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, 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 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 friends, is ACCELERATION! __________________ it's my shell I'm the turtle

08-13-2009, 07:23 PM	#3
HALFFAST Drives: 2010 Chevy Camaro Join Date: Jul 2009 Location: CANADA Posts: 248	crap- didn't realize it's on this forum, I saw it off a different forum-sorry man. Are You Mike by chance? Anyway if a Mod see's this and wants to delete feel free seeing as it is a repost. Cheers __________________ it's my shell I'm the turtle

08-13-2009, 07:35 PM	#5
PQ Booooosted. Drives: 2010 Supercharged SS Join Date: Apr 2008 Location: Mobile, AL Posts: 36,717 View My Garage	Someone was gonna do it. __________________

08-13-2009, 07:48 PM	#9
PQ Booooosted. Drives: 2010 Supercharged SS Join Date: Apr 2008 Location: Mobile, AL Posts: 36,717 View My Garage	So now what? __________________

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08-13-2009, 07:04 PM	#2
1320junkie Drives: The Imperial Army Join Date: Feb 2009 Location: The Darkside Posts: 15,742	repost..cuz I posted it..lol...still a good post though

08-13-2009, 07:37 PM	#7
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