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I supported Toymods
Banned User
Location:
Brisbane
Registered:
May 2002
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A Lesson in Acceleration
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Tue, 16 December 2003 23:43
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A Lesson in Acceleration
First, some useful info:
* One Top Fuel dragster 500 cubic inch Hemi engine makes more horsepower than the first 4 rows at the Indy. 500.
* Under full throttle, a Top Fuel dragster engine consumes 1 gallon of nitromethane per second; a fully loaded 747
consumes jet fuel at the same rate with 25% less energy being produced.
* A stock Dodge 426 Hemi V8 engine cannot produce enough power to 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 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 $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 riding the average $250,000 Honda MotoGP bike. 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 RC211V hard up through the
gears and blast across the starting line and past the dragster at an honest 200 mph (293 ft/sec). The 'tree' goes green for both of you
at that moment. The dragster launches and starts after you. You keep your wrist cranked 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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Location:
Epping, Sydney
Registered:
April 2003
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Re: A Lesson in Acceleration
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Tue, 16 December 2003 23:49
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whoa.
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Location:
Helensvale, Queensland
Registered:
March 2003
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Re: A Lesson in Acceleration
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Wed, 17 December 2003 00:03
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Sounds like my stock '90 celica 
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Location:
Sydney
Registered:
June 2003
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Re: A Lesson in Acceleration
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Wed, 17 December 2003 00:06
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lol. Woah. I need one 
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Location:
Sydney
Registered:
May 2003
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Re: A Lesson in Acceleration
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Wed, 17 December 2003 00:59
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can we shoehorn one into a sprinter or even better a ke10 to see how long the chassis would last and have heaps of fun ? 
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Location:
Epping, Sydney
Registered:
April 2003
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Re: A Lesson in Acceleration
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Wed, 17 December 2003 01:00
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| Quote: |
Sounds like my stock '90 celica
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wish I'd said that... 
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Location:
Ballarat, Victoria
Registered:
March 2003
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Re: A Lesson in Acceleration
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Wed, 17 December 2003 01:12
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| RobST162 wrote on Wed, 17 December 2003 12:00 |
| Quote: |
Sounds like my stock '90 celica
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wish I'd said that...
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i was going to say that about my RA60!!!  
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Location:
Sydney
Registered:
May 2002
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Re: A Lesson in Acceleration
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Wed, 17 December 2003 01:54
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got any proof?
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Location:
Helensvale, Queensland
Registered:
March 2003
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Re: A Lesson in Acceleration
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Wed, 17 December 2003 01:58
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Notice the red paint? That's all the proof i need 
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Location:
Sydney
Registered:
May 2002
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Re: A Lesson in Acceleration
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Wed, 17 December 2003 02:22
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fair call.
actually - I was more looking for proof of the claims in the first post. I have no trouble believing that a celica could do those figures..
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Location:
Ballarat, Victoria
Registered:
March 2003
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Re: A Lesson in Acceleration
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Wed, 17 December 2003 04:24
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that is one niiiiiiiiiiiiiice celica dude
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Location:
Melbourne
Registered:
November 2003
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Re: A Lesson in Acceleration
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Wed, 17 December 2003 06:50
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Ha ha ha. I would like to see a Celica pull 9s, let alone 400m in 4.5 seconds.
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Location:
Brisbane
Registered:
October 2002
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Re: A Lesson in Acceleration
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Wed, 17 December 2003 08:42
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easy, drop it out of a plane at 2000kph
all that and only 1 gear
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Location:
Canberra
Registered:
August 2002
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Re: A Lesson in Acceleration
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Thu, 18 December 2003 00:43
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pffft
the celica is so quick.. that you dont even see it move down the quarter... before you know it its gone. and down the other end of the 400m
see looks like its doin 500 kph standing still!!
and then... i woke up,
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Location:
Ballarat, Victoria
Registered:
March 2003
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Re: A Lesson in Acceleration
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Thu, 18 December 2003 01:26
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goddamn that white celica is quick!
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Location:
Melbourne
Registered:
November 2003
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Re: A Lesson in Acceleration
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Thu, 18 December 2003 06:16
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| philmelvin wrote on Wed, 17 December 2003 19:42 |
easy, drop it out of a plane at 2000kph
all that and only 1 gear
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Pfft, drop a ball out of a plane at 2000kph and watch how quick it does a 1/4 mile. All that and it's JUST A BALL! But then ofcourse, the plane actualy got it that fast. And realy, that's what we are talking about. The thing applying the power, not the thing traveling at speed. Well.. we are kinda talking about both.
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Location:
Canberra
Registered:
August 2002
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Re: A Lesson in Acceleration
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Thu, 18 December 2003 08:45
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| Evil_Foetus wrote on Thu, 18 December 2003 12:26 |
goddamn that white celica is quick!
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if ya lucky ill let ya touch it one time J/k
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Location:
Brisbane
Registered:
October 2002
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Re: A Lesson in Acceleration
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Thu, 18 December 2003 09:26
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| alwaysRA23 wrote on Thu, 18 December 2003 10:43 |
pffft
the celica is so quick.. that you dont even see it move down the quarter... before you know it its gone. and down the other end of the 400m
see looks like its doin 500 kph standing still!!
and then... i woke up,
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yay, i took that photo
sorry 
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Location:
Melbourne
Registered:
January 2003
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Re: A Lesson in Acceleration
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Thu, 18 December 2003 10:38
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I've got faster!!!
With my push along scooter!
If u put one of those on the greyhouse track instead of the rabbit. I'm pretty sure my corgi/terrier and pomeranian can catch up to it plus eat it for lunch!
Sorry if it was bad humor.
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Location:
Canberra
Registered:
May 2002
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Re: A Lesson in Acceleration
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Thu, 18 December 2003 10:48
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