Home » Public Forums » GMCnet » Just thought this is interesting. (Now that's acceleration.)
| Just thought this is interesting. [message #349819] |
Sat, 02 November 2019 17:02  |
Larry
Messages: 2875
Registered: January 2004
Location: Menomonie, WI
Karma: 10
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Senior Member |
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I saw this a couple of years ago in an email from a friend. Don't know how accurate it is, but interesting non the less.
What 10,000 horsepower does to a top fuel tire at launch.
TOP FUEL ACCELERATION PUT INTO PERSPECTIVE
* One Top Fuel dragster 500 cubic-inch Hemi engine makes more horsepower (10,000 HP) than the first 5 rows at the Daytona 500.
* Under full throttle, a dragster engine consumes 1.2-1.5 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 merely 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 nitro methane 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.
* Dragsters reach over 300 MPH before you have completed reading this sentence.
* In order to exceed 300 MPH in 4.5 seconds, dragsters must accelerate an average of over 4 G's. In order to reach 200 MPH well before half-track, the launch acce leration approaches 8 G's.
* 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 9500 RPM.
* THE BOTTOM LINE: Assuming all the equipment is paid off, the crew worked for free, & for once, NOTHING BLOWS UP, each run costs an estimated $1,000 per second.
0 to 100 MPH in .8 seconds (the first 60 feet of the run)
0 to 200 MPH in 2.2 seconds (the first 350 feet of the run)
6 g-forces at the starting line (nothing accelerates faster on land)
6 negative g-forces upon deployment of twin ‘chutes at 300 MPH An NHRA Top Fuel Dragster accelerates quicker than any other land vehicle on earth . . quicker than a jet fighter plane . . . quicker than the space shuttle.
The current Top Fuel dragster elapsed time record is 4.420 seconds for the quarter-mile (2004, Doug Kalitta). The top speed record is 337.58 MPH as measured over the last 66' of the run (2005, Tony Schumacher).
Putting this all 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 & 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 & pass the dragster at an honest 200 MPH. The 'tree' goes green for both of you at that moment.
The dragster launches & starts after you. You keep your foot down hard, but you hear an incredibly brutal whine that sears your eardrums & within 3 seconds the dragster catches & 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 & not only caught, but nearly blasted you off the road when he passed you within a mere 1320 foot long race!
That's acceleration!
Comments??
Larry 
78 Royale w/500 Caddy
Menomonie, WI.
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| Re: [GMCnet] Just thought this is interesting. [message #349820 is a reply to message #349819] |
Sat, 02 November 2019 19:17  |
powwerjon
Messages: 849
Registered: March 2013
Karma: -2
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Senior Member |
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This needs some updating as a number of things have changed since this was written about 14 years ago.
I was on several top fuel cars and fuel funny cars in the early 80’s as a crew member. Was crew chief on an Alcohol Funny car in the middle 80’s.
> On Nov 2, 2019, at 6:02 PM, Larry via Gmclist wrote:
>
> I saw this a couple of years ago in an email from a friend. Don't know how accurate it is, but interesting non the less.
>
> What 10,000 horsepower does to a top fuel tire at launch.
Today the engines product 11000+ horsepower
>
> TOP FUEL ACCELERATION PUT INTO PERSPECTIVE
> * One Top Fuel dragster 500 cubic-inch Hemi engine makes more horsepower (10,000 HP) than the first 5 rows at the Daytona 500.
>
> * Under full throttle, a dragster engine consumes 1.2-1.5 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 merely 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 nitro methane 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.
The engines today run an E3 spark plug which has 3 electrodes and survives only marginally better than the single electrode plugs of the past.
> * 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.
If you put a cylinder out on a pass you lose almost 1200 horsepower, and bad things can happen.
> * Dragsters reach over 300+ MPH before you have completed reading this sentence.
The top fuel cars are traveling at 250 to 280 mph at the 8th mile and today the cars race 1000 foot for both TF & FC.
Qualifying at the Las Vegas NHRA race last night (11/1/19) was the quickest and fastest pass ever recorded for TF. Britney Forces qualifying time and speed was a 3.65 sec with a top speed of 339 mph a new record.
>
> * In order to exceed 300 MPH in 4.5 seconds, dragsters must accelerate an average of over 4 G's. In order to reach 200 MPH well before half-track, the
> launch acce aeration approaches 8 G’s.
The car launch pretty hard and the cannon clutch makes it all happen, the engine goes to about 8000 rpm and the application of the clutch puts the car down the track and if the crew chief has set the many variables and doesn’t shake the tires they go pretty fast. Actually today there are 2 to 3 crew chiefs on the top teams.
>
> * Top Fuel engines turn approximately 540 revolutions from light to light!
>
> * Including the burnout, the engine must only survive 900 revolutions under load.
I believe that this is tire revolutions for the run.
>
> * The redline is actually quite high at 9500 RPM.
Today the crew chiefs have the ability to shut down the car from the starting line by pushing a button on the Kill box that he is holding.
>
> * THE BOTTOM LINE: Assuming all the equipment is paid off, the crew worked for free, & for once, NOTHING BLOWS UP, each run costs an estimated $1,000
> per second.
It has gone up just a little bit, as the engine blocks are now machined out of a block of billet aluminum on a CNC machine and so are the cylinder heads too. The cranks are also milled out of a forge round billet of special steel on a CNC machine.
>
> 0 to 100 MPH in .8 seconds (the first 60 feet of the run)
> 0 to 200 MPH in 2.2 seconds (the first 350 feet of the run)
> 6 g-forces at the starting line (nothing accelerates faster on land)
> 6 negative g-forces upon deployment of twin ‘chutes at 300 MPH An NHRA Top Fuel Dragster accelerates quicker than any other land vehicle on
> earth . . quicker than a jet fighter plane . . . quicker than the space shuttle.
>
> The current Top Fuel dragster elapsed time record is 4.420 seconds for the quarter-mile (2004, Doug Kalitta). The top speed record is 337.58 MPH as
> measured over the last 66’ of the run (2005, Tony Schumacher).
See previous answer near the top.
>
> Putting this all 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 & 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 & pass the dragster at an honest 200 MPH. The 'tree' goes green for both of you at that moment.
>
> The dragster launches & starts after you. You keep your foot down hard, but you hear an incredibly brutal whine that sears your eardrums & within 3
> seconds the dragster catches & 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 & not only caught, but nearly blasted you off the road when he passed you within a mere 1320 foot long race!
>
> That's acceleration!
>
> Comments??
I was getting expensive when I walked away in 1987. Today it is obscene the amount of dollars it takes to run these cars. I haven’t been to a race live since the day I walked away! I still follow the teams on TV. It is addictive and all it would take is the smell of the nitro and tires to set off the feelings again. As we used to say, only sex is better.
JR Wright
Michigan
> --
> Larry
> 78 Royale w/500 Caddy
> Menomonie, WI.
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| Re: [GMCnet] Just thought this is interesting. [message #349821 is a reply to message #349819] |
Sat, 02 November 2019 19:10 |
 |
ljdavick
Messages: 3548
Registered: March 2007
Location: Fremont, CA
Karma: -3
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Senior Member |
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Oh sure but can you camp at Walmart in one? ;-)
> On Nov 2, 2019, at 3:03 PM, Larry via Gmclist wrote:
>
> I saw this a couple of years ago in an email from a friend. Don't know how accurate it is, but interesting non the less.
>
> What 10,000 horsepower does to a top fuel tire at launch.
>
> TOP FUEL ACCELERATION PUT INTO PERSPECTIVE
> * One Top Fuel dragster 500 cubic-inch Hemi engine makes more horsepower (10,000 HP) than the first 5 rows at the Daytona 500.
>
> * Under full throttle, a dragster engine consumes 1.2-1.5 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 merely 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 nitro methane 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.
>
> * Dragsters reach over 300 MPH before you have completed reading this sentence.
>
> * In order to exceed 300 MPH in 4.5 seconds, dragsters must accelerate an average of over 4 G's. In order to reach 200 MPH well before half-track, the
> launch acce leration approaches 8 G's.
>
> * 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 9500 RPM.
>
> * THE BOTTOM LINE: Assuming all the equipment is paid off, the crew worked for free, & for once, NOTHING BLOWS UP, each run costs an estimated $1,000
> per second.
>
> 0 to 100 MPH in .8 seconds (the first 60 feet of the run)
> 0 to 200 MPH in 2.2 seconds (the first 350 feet of the run)
> 6 g-forces at the starting line (nothing accelerates faster on land)
> 6 negative g-forces upon deployment of twin ‘chutes at 300 MPH An NHRA Top Fuel Dragster accelerates quicker than any other land vehicle on
> earth . . quicker than a jet fighter plane . . . quicker than the space shuttle.
>
> The current Top Fuel dragster elapsed time record is 4.420 seconds for the quarter-mile (2004, Doug Kalitta). The top speed record is 337.58 MPH as
> measured over the last 66' of the run (2005, Tony Schumacher).
>
> Putting this all 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 & 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 & pass the dragster at an honest 200 MPH. The 'tree' goes green for both of you at that moment.
>
> The dragster launches & starts after you. You keep your foot down hard, but you hear an incredibly brutal whine that sears your eardrums & within 3
> seconds the dragster catches & 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 & not only caught, but nearly blasted you off the road when he passed you within a mere 1320 foot long race!
>
> That's acceleration!
>
> Comments??
> --
> Larry
> 78 Royale w/500 Caddy
> Menomonie, WI.
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
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Larry Davick
A Mystery Machine
1976(ish) Palm Beach
Fremont, Ca
Howell EFI + EBL + Electronic Dizzy
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| Re: [GMCnet] Just thought this is interesting. [message #349822 is a reply to message #349821] |
Sat, 02 November 2019 19:27 |
James Hupy
Messages: 6806
Registered: May 2010
Karma: -62
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Senior Member |
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Pretty accurate. Never drove a AA/Fueler, but I used to drive front engined
cars. Best drugs there is. I drove slingshots, gassers, Competetion Coupes,
etc. Nothing like easing your butt down into that nest between the rear
slicks, with the differential housing between your legs, and the flywheel
and clutch between your ankles. On the blower cars, all you can see
straight ahead is the back of the blower case. Doesn't matter anyway, the
engines vibrate so much your eyesight buzzes too.
Boy, I used to love it. First time I saw a real funny car, I said "No
way you are going to strap me into one of those." Never did, either.
Jim Hupy, No longer that wild and crazy.
Salem, Oregon
On Sat, Nov 2, 2019, 5:10 PM Larry Davick via Gmclist <
gmclist@list.gmcnet.org> wrote:
> Oh sure but can you camp at Walmart in one? ;-)
>
>> On Nov 2, 2019, at 3:03 PM, Larry via Gmclist
> wrote:
>>
>> I saw this a couple of years ago in an email from a friend. Don't know
> how accurate it is, but interesting non the less.
>>
>> What 10,000 horsepower does to a top fuel tire at launch.
>>
>> TOP FUEL ACCELERATION PUT INTO PERSPECTIVE
>> * One Top Fuel dragster 500 cubic-inch Hemi engine makes more horsepower
> (10,000 HP) than the first 5 rows at the Daytona 500.
>>
>> * Under full throttle, a dragster engine consumes 1.2-1.5 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 merely
> 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 nitro methane 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.
>>
>> * Dragsters reach over 300 MPH before you have completed reading this
> sentence.
>>
>> * In order to exceed 300 MPH in 4.5 seconds, dragsters must accelerate
> an average of over 4 G's. In order to reach 200 MPH well before half-track,
> the
>> launch acce leration approaches 8 G's.
>>
>> * 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 9500 RPM.
>>
>> * THE BOTTOM LINE: Assuming all the equipment is paid off, the crew
> worked for free, & for once, NOTHING BLOWS UP, each run costs an estimated
> $1,000
>> per second.
>>
>> 0 to 100 MPH in .8 seconds (the first 60 feet of the run)
>> 0 to 200 MPH in 2.2 seconds (the first 350 feet of the run)
>> 6 g-forces at the starting line (nothing accelerates faster on land)
>> 6 negative g-forces upon deployment of twin ‘chutes at 300 MPH An NHRA
> Top Fuel Dragster accelerates quicker than any other land vehicle on
>> earth . . quicker than a jet fighter plane . . . quicker than the space
> shuttle.
>>
>> The current Top Fuel dragster elapsed time record is 4.420 seconds for
> the quarter-mile (2004, Doug Kalitta). The top speed record is 337.58 MPH as
>> measured over the last 66' of the run (2005, Tony Schumacher).
>>
>> Putting this all 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 &
> 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 & pass the dragster at an honest 200 MPH. The 'tree'
> goes green for both of you at that moment.
>>
>> The dragster launches & starts after you. You keep your foot down hard,
> but you hear an incredibly brutal whine that sears your eardrums & within 3
>> seconds the dragster catches & 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 & not only caught, but nearly blasted you off the road when
> he passed you within a mere 1320 foot long race!
>>
>> That's acceleration!
>>
>> Comments??
>> --
>> Larry
>> 78 Royale w/500 Caddy
>> Menomonie, WI.
>>
>> _______________________________________________
>> GMCnet mailing list
>> Unsubscribe or Change List Options:
>> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
>
> _______________________________________________
> GMCnet mailing list
> Unsubscribe or Change List Options:
> http://list.gmcnet.org/mailman/listinfo/gmclist_list.gmcnet.org
>
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| Re: Just thought this is interesting. [message #349825 is a reply to message #349819] |
Sun, 03 November 2019 07:39 |
jhbridges
Messages: 8412
Registered: May 2011
Location: Braselton ga
Karma: -74
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Senior Member |
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Sunday at the Montgomery strip: run what you brung, when the tree steps down to green (another anachronism) stand on it. First guy across advances, the other goes home.
--johnny
Foolish Carriage, 76 26' Eleganza(?) with beaucoup mods and add - ons.
Braselton, Ga.
I forgive them all, save those who hurt the dogs. They must answer to me in hell
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| Re: Just thought this is interesting. [message #349826 is a reply to message #349819] |
Sun, 03 November 2019 08:18 |
6cuda6
Messages: 975
Registered: June 2019
Karma: -6
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Senior Member |
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Yup pretty addictive and very hard to describe what its like. I recommend everyone visit an NHRA top fuel event once in their lifetime....it will be something you will never ever forget.
I was crew chief for a pro street/pro stock bike team.....i stay away now as everyone here has eluded too...just too easy to get hooked....lol.
Rich Mondor,
Brockville, ON
77 Hughes 2600
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