# Thread: Top Fuel Drag Racing Facts

1. Professional Member
Join Date
Jan 2005
Location
Wisconsin
Posts
108
Post Likes
And I can do the math on the car doing 200mph thing, if you wish.

2. Professional Member
Join Date
Apr 2007
Posts
6,344
Post Likes
Originally Posted by mikmic2
Don't need no conversion chart. Here are a few fun facts from NHRA.com

"that NHRA Top Fuel dragsters and Funny Cars use between 10 and 12 gallons of fuel for a complete pass, including the burnout, backup to the starting line, and quarter-mile run?"

"that a fuel pump for an NHRA Top Fuel dragster and Funny Car delivers 65 gallons of fuel per minute, equivalent to eight bathroom showers running at the same time?"

http://www.nhra.com/streetlegal/funfacts.html

Doesn't look anything like the fuel consumption statistics used in this thread.

So the amount of fuel is debunked.

3. Professional Member
Join Date
Apr 2007
Posts
6,344
Post Likes
Originally Posted by mikmic2
And I can do the math on the car doing 200mph thing, if you wish.

If you care to. My only point was the math being used was incorrect it doesn't much matter the rest of the "fun facts" if one is completely misleading all are suspect.

4. Professional Member
Join Date
Jan 2005
Location
Wisconsin
Posts
108
Post Likes
As is the standing still dragster against a 200mph auto.

1/4 mile is 1320 feet.

200 x 5280 = 1056000 Feet Per Hour
Divided by 60 gives us feet per minute which is 17600 feet per minute.

17600 divided by 60 gives us feet per second.

293.333 feet per second.

293.333 times 4.5 seconds = 1320 feet.

5280 divided by 4 = 1320 feet.

Therefore that car doing 200mph will cover 1320 feet in exactly 4.5 seconds, thereby reaching the finish line about the exact same time as the dragster.

5. Well crap..... I hope your happy now.... I was all impressed with NHRA , but not now....

6. its going out the pipes valve over lap needs to be added to your math equation

7. Originally Posted by beachtech
its going out the pipes valve over lap needs to be added to your math equation
Yep..Volumetric Efficiency (VE)

Internal combustion engines aren't 100% efficient.

8. New Guest
Join Date
May 2009
Location
usa
Posts
1
Post Likes

## Top Fuel Drag Racing Facts

The fastest top fuelers can attain terminal speeds of over 530 km/h (330 mph) while covering the quarter mile (402 m) distance in roughly 4.45 seconds.

It is often related that Top Fuel dragsters are the fastest accelerating vehicles on Earth; quicker even than the space shuttle launch vehicle or catapult-assisted jet fighter (however this ignores the hydrogen peroxide rocket dragsters such as Sammy Miller and Kitty O'Neil's 3.22 ET and 663 km/h (412 mph) quarter mile world records set in 1977).

In fact, a vehicle traveling at a steady 200 mph (322 km/h) as it crosses the starting line will be beaten to the finish line by a top fuel dragster starting from a dead stop at the same moment.

Additionally, through the use of large multiple braking parachutes, the astounding performance of 0 to 531 km/h (0 to 330 mph) and then back to 0 in 20 seconds can be obtained. Using twin drag parachutes, deceleration of up to 5 G can be attained, enough to cause detached retinae[2]. The legendary Don Garlits, holder of multiple records (first 200 mph (320 km/h) run, first 270 mph (430 km/h) run...) had to retire because of a detached retina.

The faster categories of drag racing are an impressive spectacle, with engines of over five MW (6700 horsepower) and noise outputs to match (measured at 3.9 on the Richter scale by seismologist Dr. Doug Brittsan)

shae marks

9. Here's a vid showing the fuel volume at the demonstration in the NHRA museum.

10. Professional Member
Join Date
Jul 2006
Location
Virginia
Posts
405
Post Likes
Don Garlits was the first person to use a parachute to help slow his dragster. He used a cargo parachute that was a "little" too big for his application. When he deployed that chute on his top fuel dragster, it stopped him so quickly that it jerked the engine right out of the dragster and threw him into his shoulder harness with such force that it broke both collarbones !!!!

I saw a video years ago of what the fuel system of a top fuel engine looked like under full acceleration. They had a clear plastic "engine" with the fuel system installed. It looked like 8 water hoses spraying at full volume.

Page 2 of 2 First 12

#### Posting Permissions

• You may not post new threads
• You may not post replies
• You may not post attachments
• You may not edit your posts
•

## Related Forums

The place where Electrical professionals meet.