Machines | Gumout Top Fuel Dragster - 7000 HP Explained
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How do NHRA top fuel dragsters work? How does the Gumout & Dote Racing top fuel dragster produce 7,000 HP? Top fuel dragsters use 500 cu in engines running primarily nitromethane as fuel, to propel these vehicles over 300 mph in well under 4 seconds. The engines are rebuilt after every run in just 75 minutes. For more information regarding Gumout, their products, and their involvement in motorsport, check out the links below: Website - http://gumout.com/ Facebook - https://www.facebook.com/Gumout Motorsport - https://gumout.com/motorsports/ Related Videos: Fuel Additives - http://youtu.be/6eqpczQpzig This video brought to you by Gumout. The opinions and text are all mine. _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Please feel free to rate, comment, and subscribe! And don't forget to check out my Facebook page: http://www.facebook.com/engineeringexplained Also check out my official website: Make suggestions, participate in forums, learn through logically ordered lessons, read FAQs, and plan your future! http://www.howdoesacarwork.com Now on Twitter: http://www.twitter.com/jasonfenske13 NEW VIDEO EVERY WEDNESDAY!
Comments
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Sorry, but in order to get x4 more gas/liquid passing You would need to rise pressure x16
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YOU WERE IN POMONA, I LIVE IN THE HILLS NEAR THE FAIRPLEX AHHH WE COULDVE MET
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Over 50km my car will smoke these dragsters... 😎
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Wait... So since gas has more energy density does that mean it can produce more power for the same volume? I'm confused.
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If they exeed 300 mph, then why hasn't the Hot Wheels portal opened up.
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Its quite a good example of the USA actually, the land of extremes.
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of course that was a real quarter mile record not 1000 ft. The NHRA rulebook limited top speed for these REAL Top Fuel cars but the FIA "let 'em rip" . Both the LSR (13 years) and all time low ET and MPH quarter mile record- still standing since 1977
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My mom adds fuel injector clear to her Camry, I'm sure she can smoke those Top Fuel vehicles.
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Everyone should see top fuel cars race at least once in their life - it is unbelievable. Even if you're not a "car person," the amount of noise, the speed, and how they shake you is incredible. Also, watching them at the starting line and watching them just 1000ft away at the finish line are two totally different experiences.
I just took my wife to an NHRA race and she was blown away, loved it! -
Good clip. You could go much further. There are some things about a top fuel motor that compare to a sporting engine like a litre class bike quite well. Others don't. For example, the exact power output of even a highly tuned bike motor can be accurately measured. But a top fuel motor has no cooling, and it goes through the power band (between max torque and max power) in about 1 second. You can't exactly measure how much torque it makes at 7420 rpm, because you can't hold it there. So you run it against an inertial dyno, which can give quite dramatically different figures depending on exactly how you run it and measure it.
And while you're throwing high school maths about, tell them how many times that engine will rotate between the startline and the finish line... From that, you could say maximum power is sustained for about 200 revolutions or less... then the engine gets stripped and checked and maybe has the bearings replaced....
While tossing numbers around, the compression ratio is mentioned, at about 6.8:1. So is the max boost near the end of the strip, at about 60 psi. Now calculate (before allowing for fuel and hydraulics) what your cylinder pressure would be at top dead centre with 6.8:1 comp and 60 psi manifold. I make that about (roughly) 410psi. Now at what pressure will ordinary fuel detonate and destroy the piston? But wait - it gets better. Now work out how much liquid fuel is going into that cylinder at each power stroke, and figure out what that amount of in-compressible liquid is doing to your pressures at top dead centre. You are in the verge of hydraulic lock. You're getting cylinder pressures in excess of 800 psi...
On the subject of simple maths, work out how much extra downward thrust (and hence traction) is generated by those exhaust flames. The car is rocket propelled, but the rocket is like a down-force wing on a formula car - it pushes the car into the track. That's one of many - many - clever tricks that see these cars launch at about 5g. By simple physics, that shouldn't be possible! A fighter jet off an aircraft carrier, has a steam catapult. But that doesn't launch quite as hard as a top fuel car! -
*10,000
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why this engine has 2 valves and no 4?
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I love the applied math, physics, and chemistry in your videos!
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Some companies these days also re machine the clutch plates and such for a longer lifer. You'll find they won't replace the clutch plates every run like you said in the video. (Well in Australia)
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nerd!
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WOW
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will it fit in my civic?
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still a long ways from Kitty O'Neills 1977 WORLD record of 3.22 @412 using pollution free fuel made from water
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Love th video but I must say, most fuel additives are a freakIn SCAM. It's amazing that they have the money to run a TF drag team. Shame on you people who buy this junk!
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these things suck, they don't even have vtech