Jump to content
Nugget Shooter Forums

ACCELERATION EXPLAINED


garimpo

Recommended Posts

Top Fuel engines turn approximately 540 revolutions from light to light!

* Including the burnout, the engine must only survive 900 revolutions under load




Acceleration Explained In Simple Terms............HORSEPOWER

* One Top Fuel dragster outfitted with a 500 cubic-inch replica Dodge (actually Keith Black, etc)

Hemi engine makes more horsepower (8,000 HP) than the first 4 rows of cars at NASCAR's Daytona 500.

* Under full throttle, a dragster engine will consume 11.2 gallons of nitro methane per second;

a fully loaded Boeing 747 consumes jet fuel at the same rate but 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 lockup at full throttle.

* At the stoichio metric 1.7:1 air/fuel mixture for nitro methane the flame front temperature measures 7050 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. Which is typically the output of an electric arc welder in each cylinder.

* Spark plug electrodes are totally consumed during a pass. After 1/2 way thru the run, the engine is 'dieseling'

from compression and the glow of the 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 enough sufficient force to blow the 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, a dragster must accelerate an average of over 4 G's.

In order to reach 200 MPH well before reaching half-track, at launch the acceleration 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 for, the pit crew is working for free,

& NOTHING BLOWS UP, each run will cost an estimated $1,000 per second.

0 to 100 MPH in .8 seconds (the first 60 feet of t he 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....or snapping your fingers !!

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).

Let's now put this all into perspective:

Imagine this...........You are driving a new $140,000 Lingenfelter twin-turbo powered Corvette Z-06.

Over a mile up the road, a Top Fuel dragster is staged & ready to 'launch' down a quarter-mile s trip as you pass.

You have the advantage of a flying start. You run the 'Vette hard, on 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 exact moment.

The dragster departs & starts after you. You keep your foot buried hard to the floor, and suddenly you hear an incredibly

brutally screaming whine that seares and pummels your eardrums & within a mere 3 seconds the dragster effortlessly 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.....and it not only caught, but nearly blasted you off the planet

when he passed you within a mere 1320 foot long race !!!!

That, my friends.....is acceleration.

Link to comment
Share on other sites

That is a very cool article Don, thanks for putting it up.

I thought open wheel race cars were pretty fun but that experience pales compared to top fuel cars.

The men and women who ride those things

must not blink for a week after one of those runs.

What a rush - no pun intended.

Link to comment
Share on other sites

In Okla. City back in the 60's my next door neighbor, a great guy and his dad had a very successful concrete business but Elvis (no kidding) would spend half of most nights building one of these dragsters in his garage. Of course with the two or three good buddies that would always show up with the beer they at the very least were having a good time, and the dragster also looked fierce.

After several months of working on this monster Elvis, one day fired that beast off in front of my house to load it on a trailer. Never stand within a city block of one of these abortions that's going to be started for the first time!!!

I helps a great deal if your also having a beer with the fools. I would compare it to standing inside a erupting volcano. Noise, smoke and fire you just wouldn't believe. They finally got it shut down and loaded on the trailer and away they went.

Back then my house was only one row of houses from the South bypass that went East for several miles and then re-joined Interstate 40 just East of Tinker Air Force base. That was the four stooges destination. They unloaded the dragster on the shoulder of I-40 East bound.

Elvis being the driver had picked a part of the highway that was a straight shot for a few miles and when he decided it was clear enough of traffic he nailed it!!!!!

He told me a few days later the chute worked perfect, since it kept him from plowing into the two Okla. State Highway Patrol cruisers blocking I-40!!!

I already had the whole story from the friend that was a State Trooper that just happened to be overhead the stooges in a Cessna 150 working traffic with a clip board with four stop watches attached. He was watching and wondering what was going on and couldn't believe it when he saw Elvis smoking down I-40.

It took almost a week to get Elvis out of jail and he's probably to this day still paying off the traffic fines!!!!!

Link to comment
Share on other sites

Nuttn' like the smell a nitro in the morning :thumbsupanim we have a great strip here in Redding and go whenever possible. I love the local yokels class as absolutely amazing what is brought in for a pass or two up here. Gearheads abound in Redneck shasta county---and it's good. My buds Rich Ls 1,200 hp GTO(was 1,600 but a bit unmanagable on the street) is just one a the local monsters that abound-John

Link to comment
Share on other sites

NHRA HAS ALWAYS BEEN THE "TITS ON THE RITZ" OF AUTO RACING.
EVEN THE EARLY DAYS WHEN A RAIL WAS A RAIL.
STILL HAVE MY NHRA SPEED LIMIT 325 MPH TSHIRT NEVER PART WITH IT.
MET DON GARLETTS AN CONNIE KALITTA SHIRLEY MULDOWNEY DON THE SNAKE
AN MORE BACK IN THE 70'S
THERE JUST AIN'T NOTHIN ELSE IN THE WORLD LIKE STANDIN CLOSE IN TO THE START LIGHT AN FEELIN AN SMELLIN THAT NITRO POWER SHAKIN THE GROUND UNDER YER FEET, AAAHHHH WHAT A SMELL.
NICE POST DON.

post-562-0-84774900-1378401917_thumb.jpg

post-562-0-43956200-1378401933_thumb.jpg

Link to comment
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

  • Recently Browsing   0 members

    • No registered users viewing this page.
×
×
  • Create New...