Gasoline is run a bit rich as well for off idle throttle response. It would require 6.08 gs of acceleration in order to catch up with the Corvette Z06 at the 3 sec mark 880 ft down the track and would be going 400.0 mph at that time. That from a standing start, NHRA Top Fuel dragsters accelerate faster than a jumbo jet, a fighter jet, and a Formula One race car! Chris Warren * In order to exceed 300 MPH in 4.5 seconds, dragsters must accelerate an average of over 4 Gs. Everyone wants to get a good price per gallon, but is it more cost-effective over the long-term to shell out a little more for premium gasoline each time you fill up? If that temperature is reached in the cylinder before top-dead-center power stroke, the engine will detonate or melt from overheating. Show yourself, and I will teach you how to count to one.. Most gas stations offer three grades of octane, with regular rated typically at 87, mid-grade at 89 and premium at 92 or 93 [source: Federal Trade Commission ]. Monster fuel pumps-Sid Waterman New Car Reviews. It's easy to find what octane rating a gas has: Stations are required to post them on bright . The cylinder pressure is so high that the valve just won't open. AFR is the ratio of the weight of air to the weight of fuel. Just as you pass the Top Fuel Dragster the tree goes green for both of you. Sometimes, a car's knocking and pinging is audible to the driver. * 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.. Standing within 30 feet of a Top Fuel car at WOT feels more like an explosion or some kind of uncontrolled crash of noise, pressure, and caustic, yellow-orange gas that instantly burns your nostrils. An engine that shakes your insides 1/2 a mile away and goes 1/4 mile in 3 seconds is awe inspiring. The engine . These cars reach 60 mph within just a couple feet from the starting line. The current Top Fuel dragster elapsed time record is 4.441 seconds for the quarter-mile (10/05/03, Tony Schumacher). 3/10 0-60 Mph In Less Than One Second. A 2.5-inch intake valve and a 1.92-inch exhaust valve make up the engine's . "The same is true of a piston moving in the cylinder," he says. nitromethane per second; a fully loaded 747 consumes jet fuel at the same. In case you're wondering, nitromethane does not mix well with gasoline, tending to separate into layers much like water and oil. In contrast, during our drag racing days we ran an AFR of 3.4 to 1 in our high compression, blown methanol Hemi engine. Top Fuel dragsters are not called the King of sports for no reason. Compression Ratio Discussion. Lloph can validate the accuracy of these calculations. The noise from a blown nitro engine is due in part to the fact that you're hearing the tail end of the combustion process. Thats roughly $76,000 today. Today, the engine can be found in Chevy, Dodge, Ford, and Pontiac Pro Stock cars and may be the most refined engine to ever grace a National Hot Rod Association dragstrip. This is four times the electrical energy delivered by a hot street ignition system at 300 milliamps (0.3 amp). 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. Via: Houston Race Report. "Go up one grade of fuel and see if it solves the problem," says Arman. Personal correspondence. Essentially the piston would belly flop into the liquid causing mechanical damage that would weaken the heads/block while continued combustion in the other cylinders would exploit that weakness leading to a hand grenade impersonation. At peak power, each 62ci cylinder generates 1,000-plus horsepower, equaling 16 hp/ci. Inside the Beast Rich AFR values are common, ranging from a low of 3.5 to 1 to a high of 4.8 to 1. Top fuel dragsters are among the world's fastest accelerating cars hence referred to as kings of sports. Octane ratings are a measurement of a gas's ability to resist detonation. Do Top Fuel dragsters use turbos? Director of Approved Auto Repair at AAA. Nitromethane fuel-first used successfully in circle track racing by Vic Edelbrock Sr. MV Agusta Dragster RC SCS MPG Miles per US gallon: 43.1 mpg (Est.) "Putting high-octane fuel into a car that only needs low-octane fuel is a total waste of money," says Arman. The vapor burns first, creating enough heat to begin to vaporize the rest of the liquid fuel. High-amperage magnetos. A single tire runs for roughly $917 and is expected to last only 1.5 miles. This is a great post. Art's combination in the front-motored Top Fuel dragster ran record competition all over the US in AHRA & NHRA quarter mile drag race events. According to AAA's Nielsen, using a higher-octane fuel than your car requires won't hurt anything, but it also won't help -- and you'll be paying more for it, so it hurts in a different way. 2.1 1. The stroke and the bore measure 4.310 by 4.25 inches and have a compression ratio of between 7:1 and 6.5:1. But because nitromethane contains its own oxygen, fuel racers long ago discovered that the more fuel you could feed the engine, the more power it made, bringing the air/fuel ratio closer to a 1:1 ratio. At peak power, each 62ci cylinder generates 1,000-plus horsepower, equaling 16 hp/ci. NHRA rules now limit virtually all aspects of the fuel superchargers, including the inlet and outlet dimensions. Electric timers to engage lockup on clutches-Armstrong/Bernstein. This was done to try to get extra power from the oxygen in methanol fuel. Other factors include cam selection and static compression ratio. Typical AFR values for normally aspirated and blown engines are shown in the table. Most gas stations offer three grades of octane, with regular rated typically at 87, mid-grade at 89 and premium at 92 or 93 [source: Federal Trade Commission]. Nitromethane The drag racers who experimented with the fuel in the early '50s, included Joaquin Arnett of Bean Bandits fame. I stopped my speed activities all legal when I entered a cornfield in my 88 Mustang GT at around 110 mph. They have hemispherical combustion chamber cylinder heads. Cylinders run on the verge of hydraulic lock at full throttle. Indy's wildest, most grueling contest is a three-hour . People don't know this, but nitro, alcohol, and gasoline all have very similar burn rates," Miller says. Every element is engineered to act in a predictable . However, the extra fuel from a rich mixture of methanol, ethanol, or gasoline does not directly contribute to power. During the short era of competition, the team was noted for a dramatic nitro R&D effort that yielded a most consistent level of performance. If that charge is compressed into 50 cc, the compression ratio of the engine would be 10:1.". A Top Fuel engine will consume more than 14 gallons of fuel over the entire time from start-up to the finish line. To be more specific, a piston compresses the fuel and air mix in the combustion chamber of the engine. I had no idea it was that expensive. -The current Top Fuel dragster elapsed time record is 4.441 seconds for the quarter mile. Most owners' manuals have the compression ratio already calculated, and there's really no reason to know it or understand how it's derived. In order to cross the finish line 1.5 sec later 440 ft further down the track would require 12.16 gs of deceleration to slow the dragster from 400 mph and amazingly would be going 200 mph, the same speed as the Vette. In just a short amount of time, Brandon has committed to being among the best, and thanks to a 1953 Studebaker with a blown alcohol 477 cid Hemi engine, he's winning races. In order to generate the most power, the optimum approach is to apply downward pressure at the top of the stroke and apply an even amount of pressure to just about the bottom of the stroke. * Including the burnout, the engine must only survive 900 revolutions under load. Read ahead to get a grasp of some of the most important terms you need to understand in order to choose the right gas. Pushing this much air, you would think the blower would be plenty hot at the end of a 3-second pass, but with the 12 gallons per minute of fuel sprayed through just the hat nozzles, Miller says the blower is barely warm to the touch if you were to snuggle up next to it on the return lane. rate with 25% less energy being produced. He had to put the phone down to go back in and put the fire out again when it flared up! * Spark plug electrodes are totally consumed during a pass. "It usually does." This is the output of an arc welder in each cylinder. Armstrong also noted that this has an effect on cam timing. The same good spark plug color appeared at both power levels with flawless, stumble free performance. The steep cost to fill up a tank is just one of the reasons to feel a little agitated as you pull up to the pump; figuring out which gas to select in order to ensure your vehicle runs properly can also be a quandary. The vast majority of cars have four-stroke gas engines; each stroke, or compression stroke, is when a cylinder full of gas and air is compressed into a dramatically smaller volume before it is ignited with a spark plug [source: Arman]. This slightly viscous liquid was originally created as a solvent for use in the dry cleaning industry. * A stock Dodge Hemi V8 engine cannot produce enough power to merely drive the dragsters supercharger. Without doing an exact calc, the dragster takes around 4.3 seconds to catch the Vett. 1971 Chevrolet Caprice: Chevy goes Brougham! Instead, it goes out the exhaust as wasted fuel. My brother finally pulled the plug on it. Run the engine on 110 pump octane leaded racing fuel and the compression ratio can be bumped up to 13:1. Nicknamed King of the Jungle II, this Trans Am is a Pro275 drag car built by Cory Clemens of Clemens Motorsports Unlimited LLC. Just Like -YOUR- City Council, Im Declaring an EMERGENCY! Velocity Modern Classics' modernized Bronco is still wild at heart. . Parachutes for stopping-Simpson innovation. 2 Top Fuel Dragster Engine Facts. I always knew Top Fuel cars were the top of the mark when came to acceleration, g forces, speed and power but I had no idea they were this extreme! Business on the outside, performance on the inside thanks to a Cummins Enforcer engine. Compression Ratios. The guy I used to race and build engines with is still doing it. Federal Trade Commission. That's because the nitro works to pull the heat out of the air despite the immense power required to drive the blower. All that lead [ignition timing] is due to the liquid fuel." * Top Fuel engines turn approximately 540 revolutions from light to light! Here's the good news: You don't have to know anything about the functioning of your engine to make sure you're putting fuel with the right octane rating in your tank. Check it out! The car weighs 1200 pounds, has a wheelbase of 23 feet, and uses around 28 gallons of jet fuel with each run. One of the first things you notice about the exterior of the top fuel car is its length. The heat of the compressed air lights the fuel spontaneously. But a lot of this fuel is used to cool the burn. Clemens Motorsports' 526 cid Twin-Turbo Hemi Engine, Brandon Sandlian's Supercharged 477 cid Hemi Engine, Mickey Unverzagt's Turbocharged 6.7L Cummins Engine, Engine Oil for Performance Import Engines, Developing a Honda 2.3L Engine for Road Racing, MAHLE Motorsport Introduces 2023 Application Guide, Dyers Light Series Forged 6.00" H-Beam Connecting Rods, UltraSonic Products Now Available from Goodson, Exhaust Components: Tube/Frame Bending Machines, Boring Stand (For Portable Boring Machines). 2,200 Horsepower 6.4L Shredder Series Cummins Engine, 632 Big Block Reher-Morrison Nitrous Engine, 2,000 Horsepower Single-Turbo 6.7L Cummins Engine, Nitrous-Powered 478 cid Big Block Chevy Engine. Fuel system: Injection: Fuel control: . Football. A few years ago, we did an extensive nitro test program in our blown drag race altered racecar. In comparison, this blower at one-to-one drive speed displaces twice the amount of air as this engine. The trend towards ever thinner engine oils is an effort to reduce fuel consumption and emissions. What's the difference between torque and horsepower? Click ahead to discover what compression ratio is and how an engine can alert you to knocking and pinging. Fuel mixtures for drag racing run a lot richer. Cylinder Head Assembly/Disassembly Equip. Power/weight ratio: 0.9375 HP/kg: Seat height: 845 mm (33.3 inches) If adjustable, lowest setting. Dec. 16, 2011. Top Fuel dragster engines have to be rebuilt after every run. However, there is a fuel called nitropropane (C3H7NO2) that does mix with gasoline. This '18 Ram 2500 is the definition of a "sleeper build." All logos and images are reserved. If your calcs are correct that the dragster would have to hit 400 mph to catch the Vette in three seconds, and immediately slammed on the brakes and cut speed to 200, it is has to be way in front, not just 5 yards. If you accidently get it a little too lean or put in a little too much timing it will be much more forgiving. Currently, Top Fuel and Funny Cars run on a blend that's 90 percent nitromethane and 10 percent methanol, according to NHRA rules [source: Davis]. He beats you to the finish line, a quarter-mile away from where you just passed him. Years back after installing his own engine dyno he called me when he blew up his first engine on the dyno. Think of an NHRA Top Fuel dragster as one big mechanical computer. That O2 at the end is oxygen, which separates its chemical bonds to nitrogen during combustion and allows the oxygen to contribute to the combustion process. The mechanical fuel injection was jetted to deliver over twice the amount of methanol to the engine than conventional amounts. Because sprint cars run lightweight cooling systems, they are purposely run that rich for cooling. At low blower speed with low boost making about 900 HP, fuel injection jetting was adjusted for less fuel. How far can it go? Cylinder heads were surprisingly stock, with minor porting -- similar to port matching common to performance . This is the approach that we use throughout our technical manuals and our fuel injection jetting calculator. One of the most insane facts about dragsters is their neck-breaking speed. Remember, under normal circumstances the compressed air and gas mix is ignited by a spark plug. Lets say the you are driving the average $140,000 Lingenfelter twin-turbo powered Corvette Z06. I was very lucky. Why? A Top Fuel dragster can reach 335 mph at top speed and make a thousand-foot run in just 3.62 seconds. They are considered the kings of the sport-the supercharged and nitromethane-sniffing internal combustion beasts that literally stomp the ground and push a 2,300-pound land rocket on 1,000-foot runs eclipsed in 3.77 seconds at speeds approaching 325 mph. Sprint cars (circle racing) typically run normally aspirated engines on methanol. With gasoline, the air/fuel ratio for best power is 12.5 parts air to one part fuel (12.5:1). MV Agusta Dragster RC SCS Horsepower Horsepower: 140HP Engine max Power @ 12.300 R.P.M. In a subsequent test of a similar engine with greatly reduced methanol enrichment, power was restored. To Contact Hardscrabble Farmer before supplies run out: or on a mobile device, scan this QR code: To Donate Monthly via Stripe, click here. MIA I defer to your physics. Torco Racing Fuels is another company with a good history of making quality racing fuels for drag racers. Best performance for this national event winning dragster was reported at 7.34 Sec. "People who modify engines must calculate this to determine -- which usually means guess -- the octane ratings of the fuel required.". window.MGWidgetTitle12743 = "Promoted Content"; (function(){ Extra fuel in rich mixtures form droplets. New pistons and rings, new rods, new rod bearings. Fuel mixtures can be measured using air-to-fuel ratio or AFR. 23x40 - 26x48 - 33x60 - Custom (2) Nitro has more oxygen for hotter combustion, so more fuel is needed. Not controlling fuel mixtures appropriate to the amount of nitro was the reason. A while back I posted conserns about NHRA's Top Fuel rear-end ratio rule, the one that mandates a 2.90 to 1 ratio as the highest ratio allowed. A Top Fuel driver would rate a Space Shuttle launch rather mild since he experiences in excess of 5 g's positive acceleration, while the Shuttle pulls a mere 3 g's. We realized that nitro burned slower. Increased enrichment of methanol or ethanol fuels dramatically reduces combustion chamber temperatures. The block and heads are usually made by Brad Anderson or Alan Johnson. Just saying. The smaller the number on the left of the ratio, the richer the ratio. Our print magazine offers in-depth tech features on everything you need to know about engine building and its different markets, while our newsletter options keep you up-to-date on the latest news and products, tech info and personalities in the industry. But that hasn't stopped racers from improving the breed. Youll be covered in horsepower in no time! Via: NHRA. It didn't work of course, but what it did do was place extra strain on these 6000 horsepower nitro burning engines in the form . Get the latest news, insights, and more delivered directly to you inbox. We started with a very low nitro weight of 6 percent with 94 percent methanol. A simple Rons mechanical fuel injection with correct fuel pump size and jetting runs well with methanol AFR of around 5 to 1. We increased the volume of nitro to 9 percent for that mixture weight with fuel injection jetting adjustments for the proper AFR. Just five years ago, Brandon Sandlian was pretty green to drag racing and engine building. According to Bill Miller, owner of Bill Miller Engineering (BME) in Carson City, Nevada, his Top Fuel engines inhale as much as 80 gallons of fuel per minute at peak torque, which is equivalent to 1.3 gallons of fuel per second! Man-Cave, Home Office or Cabin "You can't pour it out of a gallon gas can that fast," Miller comments. Top Fuel dragsters reach 60 mph in 0.8 seconds. Fuel mixture variations are often the reason one engine build wins in racing and another blows up. So let's take a look at what is responsible for all this violence. Personal correspondence. Ignition timing is 50-55 degrees BTDC! For the record, it tends to break pistons unless you know how to tune. MV Agusta Dragster RC SCS Top Speed Top Speed: 244.0 km/h (151.6 mph) MV Agusta Dragster RC SCS Seat Height Seat Height: 33.27 MV Agusta Dragster RC SCS CC Engine 798 CC: MV Agusta . That's because the formula is so long and has so many variables that even those who are proficient in math would never dare to consider it [source: Nielsen]. The top speed record is 333.00 mph (533 km/h) as measured over the last 66' of the run. H = T * rpm/5252 is the equation for calculating horsepower from torque & rpm. In a supercharged engine, the size of the blower, blower overdrive, blower efficiency, and air density determine the pounds of air through the engine. The bore and stroke is 4.310 inches by 4.25 inches with a compression ratio of 6.5-to-1 or 7-to-1. What you'll discover is that while a Top Fuel engine appears quite tame on paper, it's the synergy of fuel, spark, and boost that makes it violent. Top three may not sound hard, but the car has to last the WHOLE weekend to land in the top three which is no easy feat. And just what is high-octane gasoline and why do so many filling stations and oil companies push it so hard? A Top Alcohol Dragster can travel as fast as 285 mph in the quarter-mile. In contrast, a normally aspirated 4-cycle engine with 550 cubic inches of displacement is 225 cubic inches per revolution or one half of the displacement. He owned a big customs clearinghouse in miami. At 200 mph the Vette will cover the 1/4 in 4.5 seconds flat and will finish 17 feet behind the fastest ever dragster. Had no idea of the extremes of that sport. Excess enrichment can severely handicap power in the second and most important vapor-to-combustion phase. The dragster engine redlines at an rpm of 8250. The scenario described above is impossible to accomplish with todays state of the art dragsters. Today, the opposite is true. 100% Satisfaction Guaranteed The methanol helps suppress detonation, which makes the fuel more stable. Then again, if your car is making knocking and pinging noises, it can be a good move to try a gas with a higher octane rating. She was the first to break 10 seconds at that level. And the so-called compression ratio -- and each engine has its own ratio -- refers to just how much of that fuel and air combination the piston compresses. Via: John Force Racing. I came across this video via knuckledraggin.com which led me to the fact sheet below. Early Top Fuel engines all used the classic 6-71 GMC supercharger that has grown into the current 14-71. I knew that Top Fuel engines were some of the most extreme engines around but I never aspired to drag racing because the ride was too short. "In fact, nitro is in between gasoline and methanol. or other units of measure. No way it is caught in 3 seconds. How much does a Top Fuel dragster motor cost? In a normally aspirated drag racing engine with 5 to 1 AFR, over 20 percent extra fuel is supplied for cooling. Quite simply, octane ratings are a measurement of a gas's ability to resist detonation. To illustrate what is happening here, Nielsen says to think of a bicycle. The 2023 MV Agusta Dragster RC Racing and all other motorcycles made 1894-2022. So yes, superchargers do suck some power (the supercharger of a Top Fuel dragster consumes over 900 hp so even a Hellcat couldn't power it) yet it . . From this and additional tests using various percentages of added nitro, we concluded that any percentage of nitro addition will increase power provided the volume is increased for the appropriate AFR for that percentage of nitro. Copyright 2022 Babcox Media Inc. All rights reserved, 1115 Old Coachman Rd., Clearwater FL 33765. uel mixture variations are often the reason one engine build wins in racing and another blows up. Few people eagerly anticipate a visit to the gas station. It is simple since it is independent of engine speed. I used to build racing engines in the 80s that sold for $25,000. Using a higher-octane fuel than your car requires won't hurt anything, but it also won't help and you'll be paying more for it. Submit all factual errors to the above cited website. We increased the volume of nitro to 9 percent for that mixture weight with fuel injection jetting adjustments for the proper AFR. Top Fuel Drag Racing Facts. Through the years, many racers who added low percentages of nitro went slower. However, gasoline is limited in the amount of enrichment since extra fuel will fowl out the spark plugs. The latest iteration is the Gibson/Miller supercharger designed by aerodynamicist Tim Gibson and built by Bill Miller Engineering (BME). Klockau Classics. Miller estimates it takes between 900 and 1,000 crankshaft horsepower to drive one of his superchargers. Example: In a dramatic methanol fuel mixture test, a 2,000 hp blown alcohol engine combination was altered to test excessive enrichment. If we assume that max power is around 8500 rpm, and that it is 10 000 hp, then. The dragster launches & starts after you. He also was a builder on the west coast and got crushed in 2008. Miller says if you compute the actual mechanical ratio of air and fuel with today's fuel engines, "the numbers get closer to 3 pounds of nitro for every 1 pound of air. It refers to just how much of that fuel and air combination the piston compresses. And no dents! My calcs were a quick scribble that said it could not be done no way the dragster could finish only five yards in front at 4.4 seconds, yet catch it from behind in three. All the proceeds and then some were used to support our own racing habit. This amount of enrichment was necessary in our high compression, high boost setup to keep compression temperature below around 800 degrees F. That 800 degree F temperature is approximately the self-ignition temperature of methanol. . Which brings us to the octane ratings in gasoline. The Supercharger My buddy jerry duke jr. used to race top fuel. A few years ago, we did an extensive nitro test program in our blown drag race altered racecar. After peak torque-between 6,000 and 6,300 rpm on a Top Fuel engine-fuel flow is reduced because the engine's volumetric efficiency suffers due to a lack of time. A top fuel dragster accelerates from a standstill to 100 mph . When paired with higher compression and/or higher boost, more enrichment of alcohol fuels can retard detonation or overheating. Think about it from a standing start, the dragster had spotted you 200 MPH & not only caught, but nearly blasted you off the road when he passed you within a mere 1320 foot long race! You have the advantage of a flying start. Just let that last fact settle in for a moment. Torco 118 is blended for larger engines, 500 cubes and up, with higher compression ratios, 15:1 and up. Please copy/paste the following text to properly cite this HowStuffWorks.com article: Each engine has its own compression ratio. At 25 feet long, it's at least 10 feet longer than a typical sedan, and about 7 feet longer than a typical Formula 1 car. The Paul Schiefer slipper clutch along with Bruce Crower and the Crowerglide. This greater level of methanol enrichment keeps the temperature below that. Otherwise, don't pay the extra 15 to 20 cents per gallon for a higher octane fuel. If we all had to calculate what our car's compression ratio is, well, plenty of us would be in big trouble. If you've never experienced the raw power of a pair of Top Fuel cars blistering the dragstrip, the initial sound pressure shock wave blasts you in the chest and assaults your eardrums. (3) Nitro has less fuel in its fluid because more oxygen is in its fluid, so more fuel is needed. In a normally aspirated drag racing engine with 5 to 1 AFR, over 20 percent extra fuel is supplied for cooling. The Dale Armstrong data logger through Racepak. The King of the Jungle features a roaring, 5,000 horsepower, twin-turbo, 526 cid Hemi engine from Brad Anderson Enterprises. An easy way for computing air-to-fuel ratio for tuning is to determine the air weight and fuel weight per revolution. Ive always loved high performance engines. This rule was put in place as a means to keep the Fuel cars under 300 mph. Brand Loyalty - is it a Thing of the Past? All three of these factors create the need for further enrichment when nitro is added. The engine of the dragster reaches its maximum speed at 8250 revolutions per minute. Given the volume of liquid fuel being injected to the cylinders I wonder if the initial cause of failure during a loss of spark might be due to the in-compressible nature of liquids. Extra fuel from enrichment does not burn. He owned and sponsered his own car. . via Terry McMillen Racing. For example, a typical 14-71 Roots blower displaces 550 cubic inches per revolution. Enter your email address to subscribe to The Burning Platform and receive notifications of new posts by email. * 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. Thanks for posting. Watch this. The only time they broke even was with a top three finish. Here's why I don't work on other people's cars for money. Corruption. * The redline is actually quite high at 9500 RPM. Fortunately, most owners' manuals have the compression ratio already calculated, and there's really no reason to know it or understand how it's derived. Keep reading for more information on car engines and fuel economy. Quite simply, octane ratings are a measurement of a gas's ability to resist detonation. 2022 Rivian R1S First Look Review: Heavy hitter. The higher compression ratio of the diesel engine leads to better fuel efficiency, which is great. One fact I found elsewhere but forgot to include: Fuel: Sunoco SR18 (118 octane) gasoline. This is a blown cylinder head O-ring due to excess heat from an AFR that was not rich enough. You keep your foot down hard, but you hear an incredibly brutal whine that sears your eardrums & within 3 seconds the dragster catches & passes you. Special Offer on Antivirus Software From HowStuffWorks and TotalAV Security, car is making knocking and pinging noises, 5 Ways Modern Car Engines Differ from Older Car Engines, How to Prevent Soot Buildup in Your Car's Engine. Dec. 15, 2011. In an attempt to minimize engine damage, the NHRA has mandated a maximum of 90 percent nitromethane chased with 10 percent methanol. Some even damaged their engines. This is impressive when you compare it to what traditionally is considered a fast 0-60 mph time. Top 10 Advancements in Top Fuel History console.log("Host www.enginebuildermag.com is engine 1"); Whether youre a professional engine builder, machinist or manufacturer, or an automotive enthusiast who likes engines, racing and fast vehicles, Engine Builder offers content aimed at you. The dragster went 8 mph faster and 0.2 seconds quicker ET than the methanol setup with all else remaining the sa, NGK Spark Plugs Announces Appointments to Leadership Team, Enter to Win Engine Builder's Dream Engine Giveaway. The bore and stroke is 4.310 inches by 4.25 inches with a compression ratio of 6.5-to-1 or 7-to-1. I used to be the proud owner of the first real blown American 4 seater sports car, the 57 Studebaker Golden Hawk. That is assuming both have similar efficiencies and air densities. However, MIA, logic tells me your deceleration calcs are wrng somewhere. "When a cylinder detonates, the fuel burns at supersonic speed and releases its energy too fast, kind of like a fast stomp on the bicycle pedal.". llpoh says: The rear-engine chassis perfected by Don Garlits in 1971. Fuel burned per run: 1 . NHRA A-Fuel Dragster engine runs a high percentage of nitro at 90% that provides about 75% of the burn power from monopropellant combustion. Hondas, Toyotas, Scions. 11.2 gallons of nitro methane per second; a fully loaded 747. consumes jet fuel at the same rate with 25% less energy being produced. One of the first limitations was on displacement, now topped out at 500 ci. The BME Top Fuel Dragster backing up to the starting line after a burnout at Houston in 2016. catch(e){var iw=d;var c=d[gi]("MarketGidScriptRootC12743");}var dv=iw[ce]('div');dv.id="MG_ID";dv[st][ds]=n;dv.innerHTML=12743;c[ac](dv); I found I was approaching a corner far to fast and would never make the turn. Fuel mixtures for drag racing and most other forms of racing are run a lot richer, especially with mechanical fuel injection. With this ratio, over 85 percent extra fuel is supplied for cooling. Kulpsville, PA 19443, Inquiries about advertising opportunities can be made by emailing me at, Another Atrocious Week Going Out With A Bang, Too Poor to Continue Living with Dignity Canadian Eugenics, The Evidence Is In Another Stolen Election, Joe Biden Abruptly Cancels G20 Meeting Amid Reports of Serious Health Concerns, Past Inflation Peak? Tracing its roots to the Chevy Mark IV Rat Motor, the Chevrolet Performance Drag Racing Competition Engine (DRCE) delivers more than 1,400 electronically fuel-injected horsepower to a pair of Goodyears for a 6-second ride down the quarter-mile in an excess of 200 mph. In other words, the additional timing is necessary because, Miller says "only 10 percent of what's in the chamber is vapor; the rest is liquid." NHRA Top Fuel dragsters can exceed 280 mph in just 660 feet! Motorsports. "The Low-Down on High Octane Gasoline," brochure. Bullshit. Dale Armstrong has long since retired from active Top Fuel racing as crew chief of the famous Kenny Bernstein-owned Budweiser King Top Fuel car, but in the '80s there was still room for major innovation, and many of Armstrong's creations-such as the first use of onboard data logging-is still a Top Fuel standard. * THE BOTTOM LINE: Assuming all the equipment is paid off, the crew worked for free, & for once, NOTHING BLOWS UP, each run costs an estimated $1,000 per second. The nicest thing about lower compression ratios is that it makes your tuning window wider. * 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. * One Top Fuel dragster 500 cubic-inch Hemi engine. "In a four cylinder, 2-liter engine, each cylinder would have a 500 cc capacity," says John Nielsen, director of approved auto repair with the American Automobile Association (AAA). The tremendous amount of fuel present in the cylinders demands an immense amount of current flow to spark the combustion process. 2.4 4. Box 1520, Today, the average high-performance street or strip turbocharged four-cylinder race engine sports a compression ratio of 9.5:1, with some even running compression ratios as high as 11.5:1 or more . Top Fuel is also a place where myths abound, especially in regard to ignition systems. Top Fuel engines are power personified-a barely contained internal combustion evolution of mythical proportions that snarls and breathes fire and often wreaks havoc on those who presume to exercise control. Injectors: 80 or 160 pound per hour Holley units, maximum of eight. Porter, Reid. AFR is the parameter used in electronic fuel injection, and it is the best tuning tool for racing mechanical fuel injection as well. vapor-to-combustion phase change occurs from the remainder of the ignition energy reduced by enrichment. 1963-1965 GM Rochester fuel injection brings dramatic gross power ratings of 360 to 375 horsepower from a GM small block V8 originally only 327 cubic inches. In racing, maintaining the right fuel mixture for the setup can mean the difference between powerful, reliable engine performance and broken parts.

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