Corvette Forum : DigitalCorvettes.com Corvette Forums banner

1 - 18 of 18 Posts

·
Registered
Joined
·
2,916 Posts
Discussion Starter #1
Thought you all would get a kick out of this:


Some interesting Top Fuel dragster facts:

1) One dragster's 500-inch Hemi makes more horsepower then the first 8 rows at Daytona
2) Under full throttle, a dragster engine consumes 1 1/2 gallons of nitro per second, the same rate of fuel consumption as a fully loaded 747 but with 4 times the energy volume.

3) The supercharger takes more power to drive then a stock hemi makes.

4) Even with nearly 3000 CFM of air being rammed in by the supercharger on overdrive, the fuel mixture is compressed into nearly-solid form before ignition. Cylinders run on the verge of hydraulic lock.

5) Dual magnetos apply 44 amps to each spark plug. This is the output of an arc welder in each cylinder.

6) At stoichiometric (exact) 1.7:1 air/fuel mixture (for nitro), the flame front of nitromethane measures 7050 degrees F.

7) 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.

8) 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 of it's fuel flow.

9) If spark momentarily fails early in the run, unburned nitro builds up in those cylinders and then explodes with a force that can blow cylinder heads off the block in pieces or blow the block in half.

10) Dragsters twist the crank (torsionally) so far (20 degrees in the big end of the track) that sometimes cam lobes are ground offset from front to rear to re-phase the valve timing somewhere closer to synchronization with the pistons.

11) To exceed 300mph in 4.5 seconds dragsters must accelerate at an average of over 4G's. But in reaching 200 mph well before 1/2 track, launch acceleration is closer to 8G's.

12) If all the equipment is paid off, the crew worked for free, and for once NOTHING BLOWS UP, each run costs $1000.00 per second.

13) Dragsters reach over 300 miles per hour before you have read this sentence

Matt383:smokin:
 

·
Premium Member
Joined
·
11,627 Posts
Some really cool facts, thanks. I love watching the top fuel and funny cars. The power is just unbelievable. :)
 

·
Registered
Joined
·
596 Posts
Here's a few more:

Above, it states 8Gs to attain 200 MPH in 660'; on a 'GOOD' run, Fuelers hit 240-260 in an 1/8-mile.....

At max RPM, EACH cylinder has so much fuel running into it, it is the same as a garden hose, or a kitchen faucet, running wide-open. That is EACH cylinder.....

Bruce Larson's (Mr. USA-1)) crew-members once told me that his AA/FC got 4 RUNS from a ring and pinion. That is 4 burn-outs, and 1 MILE under acceleration, per gear-set.....

In '86, the U.S. Navy, then a sponsor of Big Daddy Don Garlits' SWAMP RAT XXX, had a contest, to see how their fighters, being catapulted of a carrier, compared to his car, over the length of the flight-deck. With the jets having no traction worries, they easily beat Garlits' best time, clocked at their air-field in Fla. On an NHRA-prepared track, he TROUNCED the fly-boys.....

A typical fuel-car has a 13-17 gallon fuel tank. If they cars have a 'staging battle' on the starting line, they may be shut-off by the Chief Starter. This is for 2 reasons:
#1- by idling too long, they may run out of fuel during the run, and possibly burn-down the engine, causing massive clean-up;
#2- the fuel tanks are mounted far-forward, acting as ballast, to keep the nose 'down' during a run. Officials fear that, with less fuel in the tank, as speeds approach 300 MPH near the traps, a chance of 'blow-over' (actually going into a 'wheelie' down-track)increases.....

In the late '50s, a Blue-Ribbon panel of 'experts' (scientists, physicists, etc.) concluded that NO dragster could EVER eclipse 158 MPH (something like that...)
By the time the 'experts' had written-up their thesis, 'Large Father' had already gone 170+ MPH.....

Last week, on SPEED-CHANNEL, 'The Sarge', Tony Schumacher, casually mentioned his U.S. ARMY-sponsored Top Fueler had hit 100 MPH the previous race in .833 seconds.....

In the early '80s, most T/F cars still ran 'bicycle-type-tires' on spoked-wheels on the front of their cars. After a rash of top-end accidents in the shut-down area, it was decided that the tires LITERALLY kept accelerating, OFF the wheels, when the parachutes 'hit', causing the wrecks.....

You can not 'light' nitro, sitting in a jar, with a match; it needs to be 'combusted' first.....
 

·
Registered
Joined
·
5,348 Posts
Can you say Insane. That stuff is very cool to watch. It also seems very dangerous.
 

·
DC PIT CREW BOSS
Joined
·
39,550 Posts
Talk about a grocery getter. 1-1/2 gallons a second WOW
 

·
Registered
Joined
·
888 Posts
top fuel

Last i heard, these cars are making about 9 THOUSAND plus hp.:surprised. this was from a mag about 5 years ago, so i'm sure it's even more now. It also stated that at 10k rpm's, it takes 1 thousand hp just to turn the supercharger. :partyon:
 

·
DC PIT CREW BOSS
Joined
·
39,550 Posts
Just consider that at 10K rpm the engine turns only 750 revs per quarter mile after which they tear it down:surprised

10,000/60 = 166.7
166.7*4.5 = 750
 

·
Registered
Joined
·
2,916 Posts
Discussion Starter #11
Last i heard, these cars are making about 9 THOUSAND plus hp.:surprised. this was from a mag about 5 years ago, so i'm sure it's even more now. It also stated that at 10k rpm's, it takes 1 thousand hp just to turn the supercharger. :partyon:
Yup.

over 1000 hp PER Cylinder.

One piston creates more hp than a NASCAR car.

If you have never been to the Nationals you should go.
 

·
You've been pimped!!
Joined
·
15,297 Posts
I love these stats. It's just amazing how fast they are.

I've heard this as well...

If you took a C4 ZR1 and got a running start so that you were going at full speed at the start line, a top fuel dragster will still beat you to the finish line after a stand still start. :surprised
 

·
Premium Member
Joined
·
2,684 Posts
I really enjoyed reading those facts. Thanks for sharing.

:partyon:
 

·
Registered
Joined
·
2,916 Posts
Discussion Starter #14
One more interesting fact.

Top Fuel Dragster 0 -100 MPH is .9 sec.

That's right.

We all talk about zero to 60 in like 4 or 5 sec's for corvettes

(my car did it in 2.6 sec)

Anyway Zero to 100 in .9 sec (point nine sec)
 

·
Registered
Joined
·
2,916 Posts
Discussion Starter #15
By the way..

Has anyone noticed when this thread was first started?:surprised
 

·
Registered
Joined
·
6 Posts
Interesting Fast Facts. Thanks for your post. I have always told friends and family, There are three occupations I would love to do in my lifetime. Top Fuel Drag Racing, 410 Sprint Car Racing and Career Fire Fighter. Firefighting is currently paying the bills....lol:D
 

·
Registered
Joined
·
33 Posts
You can not 'light' nitro, sitting in a jar, with a match; it needs to be 'combusted' first.....
I am a former nitro crew member and I can tell you 2 very interesting things about this ^^.
1) A soda bottle cap full of nitro will blow a huge hole in an aluminum table if hit with a hammer. (Ask me how I know)
2) As stated nitro does not light it explodes under pressure. This is why after the heads are off and the rack is back in, you will see the crew guys running the head studs in slowly by hand. There have been instances where the head studs were spun down in the block too quick, by hand or by drill, and the bottom of the block exploding because of nitro being trapped under the studs.

Also, if you get a bad cut on your hand, if you pour nitro on it, it no longer hurts. I have done this many times and it really does work.
 
1 - 18 of 18 Posts
Top