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NHRA Winternationals

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The NHRA Winternationals (commonly called the Winternats ) are an annual drag racing event held by the National Hot Rod Association (NHRA) at In-N-Out Burger Pomona Dragstrip in Pomona, California .

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54-677: The National Hot Rod Association first sanctioned a Winter Nationals in 1960 at Bunnell-Flagler Field (now the Flagler County Airport), the former NOLF Bunnell. The event was co-sanctioned with NASCAR (which was a member of the Automobile Competition Committee for the United States when the NHRA was not at the time) in order to gain national sanction as at the time, NASCAR, USAC, and SCCA were

108-484: A Sandy Elliot Mustang . Don Enriquez (in Gene Adams ' A/FD) won Competition Eliminator , turning in a pass of 7.34 at 199 mph (320 km/h), quicker and faster than Steve Woods ' hemi -engined BB/Gas Ford Anglia ; the field also included twin-engine straight-six-cylinder-powered D/Ds, and AA/FAs. The 1971 meet was marred by the death of "Sneaky Pete" Robinson , who wrecked his TF/D in qualifying, with

162-405: A hot-bulb engine used a 'jerk pump' to dispense fuel oil at high pressure to an injector. Another development in early diesel engines was the pre-combustion chamber, which was invented in 1919 by Prosper l'Orange to avoid the drawbacks of air-blast injection systems. The pre-combustion chamber made it feasible to produce engines in size suitable for automobiles and MAN Truck & Bus presented

216-632: A spark plug . The Cummins Model H diesel truck engine was introduced in America in 1933. In 1936, the Mercedes-Benz OM 138 diesel engine (using a precombustion chamber) became one of the first fuel-injected engines used in a mass-production passenger car. During World War II , several petrol engines for aircraft used direct-injection systems, such as the European Junkers Jumo 210 , Daimler-Benz DB 601 , BMW 801 , and

270-460: A 1961 Pontiac Ventura with a 348 cu in (5,700 cc) V8 , which was driven (not trailered) to Pomona. Cox won the title in S/SA, making her the first woman ever to take a win at an NHRA national event; the 9 March 1962 issue of National Dragster recorded her as a "crowd favorite", with a winning pass of 13.06 seconds at 107.65 mph (173.25 km/h), but says nothing about it being

324-546: A 6.77 pass. Altereds were so popular in the 1960s and 1970s, at the 1977 Winternationals, more than 75 drivers contested for the Comp Eliminator title. Among them was Ed Prout, who brought his A/Altered from Connecticut . NHRA introduced a significant change to the Christmas tree , LEDs instead of incandescent bulbs , at Pomona in 2003. At Pomona in 2014, Alexis DeJoria became the first woman ever to make

378-454: A carburettor. Many of the carburettor's supporting components—such as the air filter, intake manifold, and fuel line routing—could be used with few or no changes. This postponed the redesign and tooling costs of these components. Single-point injection was used extensively on American-made passenger cars and light trucks during 1980–1995, and in some European cars in the early and mid-1990s. In the US,

432-581: A central injector instead of multiple injectors. Single-point injection (also called 'throttle-body injection') uses one injector in a throttle body mounted similarly to a carburettor on an intake manifold . As in a carburetted induction system, the fuel is mixed with the air before entering the intake manifold. Single-point injection was a relatively low-cost way for automakers to reduce exhaust emissions to comply with tightening regulations while providing better "driveability" (easy starting, smooth running, no engine stuttering) than could be obtained with

486-401: A first for a woman, dismissively calling her a "'powder puff' handler". Some racers believe a class win is more difficult to achieve than a handicap (eliminator) win. At the 1966 event, Shahan was the first woman to claim a national event eliminator crown, by taking Stock Eliminator . The win put her on the cover of National Dragster . NHRA debuted the new Top Fuel Funny Car (TF/FC) class at

540-572: A fuel injection system are described in the following sections. In some systems, a single component performs multiple functions. Fuel injection is operated by spraying pressurised fuel into the engine. Therefore a device to pressurise the fuel is needed, such as a fuel pump. The system must determine the appropriate amount of fuel to be supplied and control the fuel flow to supply this amount. Several early mechanical injection systems used relatively sophisticated helix-controlled injection pump(s) that both metered fuel and created injection pressure. Since

594-728: A fuel injection system in 1941 and by 1956 it was used in the Jaguar racing cars. At the 1957 24 Hours of Le Mans , the 1st to 4th placed cars were Jaguar D-Type entries using a Lucas fuel injection system. Also in 1957, General Motors introduced the Rochester Ramjet option, consisting of a fuel injection system for the V8 engine in the Chevrolet Corvette. During the 1960s, fuel injection systems were also produced by Hilborn , SPICA and Kugelfischer . Up until this time,

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648-580: A passenger car was released the following year, in the Mercedes-Benz 300SL sports car. However the engine suffered lubrication problems due to petrol diluting the engine oil, and subsequent Mercedes-Benz engines switched to a manifold injection design. Likewise, most petrol injection systems prior to the 2000s used the less-expensive manifold injection design. Throughout the 1950s, several manufacturers introduced their manifold injection systems for petrol engines. Lucas Industries had begun developing

702-483: A pulsed flow system which used an air flow meter to calculate the amount of fuel required. L-Jetronic was widely adopted on European cars during the 1970s and 1980s. As a system that uses electronically-controlled fuel injectors which open and close to control the amount of fuel entering the engine, the L-Jetronic system uses the same basic principles as modern electronic fuel injection (EFI) systems. Prior to 1979,

756-399: A sophisticated common-rail injection system. The latter is the most common system in modern automotive engines. During the 20th century, most petrol engines used either a carburettor or indirect fuel injection. Use of direct injection in petrol engines has become increasingly common in the 21st century. In a common rail system, fuel from the fuel tank is supplied to a common header (called

810-535: A sub-four second pass, with a 3.997-second e.t. In 2018, Top Fuel Dragster went to Doug Kalitta , Top fuel Funny Car to Matt Hagan , and Pro Stock to Bo Butner . In 2021, the Winternationals was moved to summer because of the ongoing coronavirus pandemic and restrictions imposed by California. The NHRA decided to move the Gatornationals to the season opening slot. In an unusual fashion,

864-680: Is a county-owned public-use airport located three miles (5 km) east of the central business district of Bunnell , a city in Flagler County , Florida , United States . The airport's former FAA location identifiers were X47 and XFL . The airfield was originally constructed by the United States Navy during World War II as Naval Outlying Field Bunnell (NOLF Bunnell) , an auxiliary airfield for flight training operations originating from nearby Naval Air Station Jacksonville , NAS Daytona Beach and NAS DeLand . Following

918-413: Is always intermittent (either sequential or cylinder-individual). This can be done either with a blast of air or hydraulically, with the latter method being more common in automotive engines. Typically, hydraulic direct injection systems spray fuel into the air inside the cylinder or combustion chamber. Direct injection can be achieved with a conventional helix-controlled injection pump, unit injectors, or

972-546: Is called a manifold injection system. There exist two types of manifold injection systems: multi-point injection (or port injection) and single-point injection (or throttle body injection). Internal mixture formation systems can be separated into several different varieties of direct and indirect injection, the most common being the common-rail injection system, a variety of direct injection. The term "electronic fuel injection" refers to any fuel injection system controlled by an engine control unit . The fundamental functions of

1026-533: Is injected at the same time to all the cylinders; or cylinder-individual , in which the engine control unit can adjust the injection for each cylinder individually. Multi-point injection (also called 'port injection') injects fuel into the intake ports just upstream of each cylinder's intake valve , rather than at a central point within an intake manifold. Typically, multi-point injected systems use multiple fuel injectors, but some systems, such as GM's central port injection system, use tubes with poppet valves fed by

1080-484: Is the introduction of fuel in an internal combustion engine , most commonly automotive engines , by the means of a fuel injector. This article focuses on fuel injection in reciprocating piston and Wankel rotary engines. All compression-ignition engines (e.g. diesel engines ), and many spark-ignition engines (i.e. petrol (gasoline) engines , such as Otto or Wankel ), use fuel injection of one kind or another. Mass-produced diesel engines for passenger cars (such as

1134-415: The Mercedes-Benz OM 138 ) became available in the late 1930s and early 1940s, being the first fuel-injected engines for passenger car use. In passenger car petrol engines, fuel injection was introduced in the early 1950s and gradually gained prevalence until it had largely replaced carburetors by the early 1990s. The primary difference between carburetion and fuel injection is that fuel injection atomizes

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1188-564: The Shvetsov ASh-82FN (M-82FN) . The German direct-injection systems were based on diesel injection systems used by Bosch, Deckel, Junkers and l'Orange. By around 1943, the Rolls-Royce Merlin and Wright R-3350 had switched from traditional carburettors to fuel-injection (called "pressure carburettors" at the time), however these engines used throttle body manifold injection , rather than the direct-injection systems of

1242-479: The Wankel engine . In a manifold injection system, air and fuel are mixed outside the combustion chamber so that a mixture of air and fuel is sucked into the engine. The main types of manifold injections systems are multi-point injection and single-point injection . These systems use either a continuous injection or an intermittent injection design. In a continuous injection system, fuel flows at all times from

1296-669: The accumulator ), and then sent through tubing to the injectors, which inject it into the combustion chamber. The accumulator has a high-pressure relief valve to maintain pressure and return the excess fuel to the fuel tank. The fuel is sprayed with the help of a nozzle that is opened and closed with a solenoid-operated needle valve . Third-generation common rail diesels use piezoelectric injectors for increased precision, with fuel pressures up to 300  MPa or 44,000  psi . The types of common-rail systems include air-guided injection and spray-guided injection . Used by diesel engines, these systems include: This injection method

1350-437: The throttle body . Fuel injectors which also control the metering are called "injection valves", while injectors that perform all three functions are called unit injectors . Direct injection means that the fuel is injected into the main combustion chamber of each cylinder. The air and fuel are mixed only inside the combustion chamber. Therefore, only air is sucked into the engine during the intake stroke. The injection scheme

1404-557: The 1950 Goliath GP700 small saloon, it was also added to the Gutbrod Superior engine in 1952. This mechanically-controlled system was essentially a specially lubricated high-pressure diesel direct-injection pump of the type that is governed by the vacuum behind an intake throttle valve. A Bosch mechanical direct-injection system was also used in the straight-eight used in the 1954 Mercedes-Benz W196 Formula One racing car. The first four-stroke direct-injection petrol engine for

1458-428: The 1954-1959 Mercedes-Benz 300 SL - all used manifold injection (i.e. the injectors located at the intake ports or throttle body, instead of inside the combustion chamber). This began to change when the first mass-produced petrol direct injection system for passenger cars was a common rail system introduced in the 1997 Mitsubishi 6G74 V6 engine. The first common-rail system for a passenger car diesel engine

1512-511: The 1970 Super Stock title. The Funny Car Eliminator title at the 1971 Winternats would go to Leong's Hawaiian . with Butch Maas at the wheel. Don Garlits ' novel rear-engined dragster appeared at the Winternats that year, qualifying with 6.8; his best time of the meet was a 6.70, over Jim Dunn 's 7.58, in the semi-final: Garlits would win, when Kenny Safford broke in the final. The last Top Gas Eliminator crown, before NHRA abolished

1566-452: The 1980s, electronic systems have been used to control the metering of fuel. More recent systems use an electronic engine control unit which meters the fuel, controls the ignition timing and controls various other engine functions. The fuel injector is effectively a spray nozzle that performs the final stage in the delivery of fuel into the engine. The injector is located in the combustion chamber , inlet manifold or - less commonly -

1620-522: The 2020 season, the race was usually held in early February, often the week after the Super Bowl. The event moved to the Los Angeles area in 1961. In 1962, under pressure from Peggy Hart (wife of track owner "Pappy" Hart ) and Mickey Thompson , as well as fellow racers Shirley Shahan and Roberta Leighton , Carol Cox was the first woman allowed to race at an NHRA national event. Cox drove

1674-572: The Daytona event. Flagler Executive Airport covers an area of 1,145 acres (463 ha) and contains two paved runways , one seaplane landing area and one helipad : For the 12-month period ending February 8, 2018, the airport had 158,775 aircraft operations, an average of 435 per day: 100% general aviation and less than 1% military. In February 2022, there were 37 aircraft based at this airport: 30 single-engine, 2 multi-engine, 2 jet and 3 helicopter. Fuel injection Fuel injection

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1728-589: The Electrojector system, becoming the first cars known to use an electronic fuel injection (EFI) system. The Electrojector patents were subsequently sold to Bosch, who developed the Electrojector into the Bosch D-Jetronic . The D-Jetronic was produced from 1967-1976 and first used on the VW 1600TL/E . The system was a speed/density system, using engine speed and intake manifold air density to calculate

1782-630: The FAA Airport Diagram as a "National Guard Armory," the facility actually supports units of both the U.S. Army Reserve and the Florida Army National Guard . Although no military aircraft are permanently assigned, the facility contains a flight line ramp area capable of accommodating UH-60 Blackhawk , CH-47 Chinook , and C-130 Hercules aircraft. In 1960, it was the site of the inaugural NHRA Winter Nationals , which jointly sanctioned by NHRA and NASCAR (the NHRA

1836-500: The G10 engine in the 2000 Chevrolet Metro became the last engine available on an American-sold vehicle to use throttle body injection. In indirect-injected diesel engines (as well as Akroyd engines), there are two combustion chambers: the main combustion chamber, and a pre-chamber (also called an ante-chamber) that is connected to the main one. The fuel is injected only into the pre-chamber (where it begins to combust), and not directly into

1890-621: The German engines. From 1940, the Mitsubishi Kinsei 60 series engine used a direct-injection system, along with the related Mitsubishi Kasei engine from 1941. In 1943, a low-pressure fuel injection system was added to the Nakajima Homare Model 23 radial engine. The first mass-produced petrol direct-injection system was developed by Bosch and initially used in small automotive two-stroke petrol engines. Introduced in

1944-740: The Top Fuel final was determined by default when one finalist was pulled out by NHRA officials over driver safety when he had heat exhaustion. The move of the Super Bowl that was made in effect for 2021 , the NHRA moved the Winternationals to the spring, and the Gatornationals in Florida now start the season going forward. ( Stock Eliminator ) Flagler County Airport 29°28′03″N 081°12′23″W  /  29.46750°N 81.20639°W  / 29.46750; -81.20639 Flagler Executive Airport ( ICAO : KFIN , FAA LID : FIN )

1998-425: The Winternationals in 1969; Funny Car Eliminator (FCE) would be won by Clare Sanders , teammate of "Jungle Jim" Liberman . In 1970, Top Fuel Eliminator (quickset fuel car of the meet, digger or flopper ) went to Larry Dixon , The AA/FC winner was the 1970 Dodge Charger , Hawaiian , of Larry Reyes (driving for Roland Leong ). Barrie Poole became the first Canadian to win an NHRA national event, taking

2052-589: The amount of fuel to be injected. In 1974, Bosch introduced the K-Jetronic system, which used a continuous flow of fuel from the injectors (rather than the pulsed flow of the D-Jetronic system). K-Jetronic was a mechanical injection system, using a plunger actuated by the intake manifold pressure which then controlled the fuel flow to the injectors. Also in 1974, Bosch introduced the L-Jetronic system,

2106-480: The class, went to Walt Stevens , at the wheel of Ken Theiss ' twin-engined Odd Couple TG/D. The year's award for Best Engineered Car went to Jim Busby , with a dragster powered by a pair of injected 255 cu in (4,179 cc) DOHC Ford Indy V8 engines. ( Hank Westmoreland failed to qualify the car, and it never ran again.) Canadian Barrie Poole repeated his 1970 Winternats win in Super Stock, in

2160-579: The diesel engine, but also improved it. He increased the air blast pressure from 4–5 kp/cm (390–490 kPa) to 65 kp/cm (6,400 kPa). In the meantime, the first manifold injection system was designed by Johannes Spiel in 1884, while working at Hallesche Maschinenfabrik in Germany. In 1891, the British Herbert-Akroyd oil engine became the first engine to use a pressurised fuel injection system. This design, called

2214-411: The electronics in fuel injection systems used analogue electronics for the control system. The Bosch Motronic multi-point fuel injection system (also amongst the first systems where the ignition system is controlled by the same device as the fuel injection system) was the first mass-produced system to use digital electronics . The Ford EEC-III single-point fuel injection system, introduced in 1980,

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2268-630: The end of the war, the airfield was transferred from the Navy to Flagler County for use as a general aviation airport. According to the Federal Aviation Administration (FAA) data, the airport ranks as the fourth busiest in Florida out of 105 General Aviation airports, with 190,000 takeoffs and landings per year. This is primarily due to its use as a practice field by students from nearby Embry-Riddle Aeronautical University , adjacent to Daytona Beach International Airport . Due to

2322-441: The first direct-injected diesel engine for trucks in 1924. Higher pressure diesel injection pumps were introduced by Bosch in 1927. In 1898, German company Deutz AG started producing four-stroke petrol stationary engines with manifold injection. The 1906 Antoinette 8V aircraft engine (the world's first V8 engine) was another early four-stroke engine that used manifold injection. The first petrol engine with direct-injection

2376-655: The fuel injection systems had used a mechanical control system. In 1957, the American Bendix Electrojector system was introduced, which used analogue electronics for the control system. The Electrojector was intended to be available for the Rambler Rebel mid-size car, however reliability problems meant that the fuel injection option was not offered. In 1958, the Chrysler 300D , DeSoto Adventurer , Dodge D-500 and Plymouth Fury offered

2430-580: The fuel injectors, but at a variable flow rate. The most common automotive continuous injection system is the Bosch K-Jetronic system, introduced in 1974 and used until the mid-1990s by various car manufacturers. Intermittent injection systems can be sequential , in which injection is timed to coincide with each cylinder's intake stroke; batched , in which fuel is injected to the cylinders in groups, without precise synchronization to any particular cylinder's intake stroke; simultaneous , in which fuel

2484-633: The fuel through a small nozzle under high pressure, while carburetion relies on suction created by intake air accelerated through a Venturi tube to draw fuel into the airstream. The term "fuel injection" is vague and comprises various distinct systems with fundamentally different functional principles. Typically, the only thing all fuel injection systems have in common is a lack of carburetion . There are two main functional principles of mixture formation systems for internal combustion engines: internal mixture formation and external mixture formation. A fuel injection system that uses external mixture formation

2538-851: The increase in air traffic, the Flagler County Airport now has an FAA Level 1 Contract Air Traffic Control Tower that operates from 7am - 9pm, 365 days per year. Although most U.S. airports use the same three-letter location identifier for the FAA and IATA , Flagler County Airport is assigned FIN by the FAA but has no designation from the IATA. The airport is also home to the Flagler Palm Coast Army Readiness Center that opened in October 2020. Listed on

2592-503: The main combustion chamber. Therefore, this principle is called indirect injection. There exist several slightly different indirect injection systems that have similar characteristics. Types of indirect injection used by diesel engines include: In 1872, George Bailey Brayton obtained a patent on an internal combustion engine that used a pneumatic fuel injection system, also invented by Brayton: air-blast injection . In 1894, Rudolf Diesel copied Brayton's air-blast injection system for

2646-631: The three sanctioning bodies that formed the FIA-designated national governing body of motorsport. It was held the week before the 1960 Daytona 500, and was the attempt to solve problems with illegal street racing at Daytona during Speed Weeks. Wallu Parks and George Schorb worked with the South Florida Timing Association and NASCAR official Ed Otto. Schorb worked to help stop illegal street racing first in Miami. Until

2700-424: Was a two-stroke aircraft engine designed by Otto Mader in 1916. Another early spark-ignition engine to use direct-injection was the 1925 Hesselman engine , designed by Swedish engineer Jonas Hesselman. This engine could run on a variety of fuels (such as oil, kerosene, petrol or diesel oil) and used a stratified charge principle whereby fuel is injected towards the end of the compression stroke, then ignited with

2754-407: Was another early digital fuel injection system. These and other electronic manifold injection systems (using either port injection or throttle-body injection ) became more widespread through the 1980s, and by the early 1990s they had replaced carburettors in most new petrol-engined cars sold in developed countries. The aforementioned injection systems for petrol passenger car engines - except for

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2808-468: Was not a member of the national governing body of motorsport, the Automobile Competition Committee for the United States , until 1965), which allowed the event to be certified for insurance regulations and FIA certification because NASCAR was a founding member of the national governing body. The inaugural Winter Nationals was part of Speed Weeks for the 1960 Daytona 500. This event was developed because of an issue of issues with illegal street racing around

2862-453: Was previously used in many diesel engines. Types of systems include: The M-System , used in some diesel engines from the 1960s to the 1980s, sprayed the fuel onto the walls of the combustion chamber, as opposed to most other direct-injection systems which spray the fuel into the middle of the chamber. Manifold injection systems are common in petrol-fuelled engines such as the Otto engine and

2916-473: Was the Fiat Multijet straight-four engine, introduced in the 1999 Alfa Romeo 156 1.9 JTD model. Since the 2010s, many petrol engines have switched to direct-injection (sometimes in combination with separate manifold injectors for each cylinder). Similarly, many modern diesel engines use a common-rail design. Stratified charge injection was used in several petrol engines in the early 2000s, such as

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