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- 1320 look up translate image
- Number of feet in a 1/4 mile.
- 60 FOOT TIME look up translate image
- See Sixty Foot Time.
- AFTER MARKET look up translate image
- Generally, the replacement parts and high performance products market.
- AIR BOX look up translate image
- Used primarily on Pro Stock Motorcycles, it settles "negative air" around carburetors the way a hood scoop does on a car.
- AIR DAM look up translate image
- Used to direct or block air flow. Used in front to prevent air flow to undercarriage,intended to prevent turbulence and lift.
- AIR FOIL look up translate image
- the same as a wing, a stabilizer, generally used to create downforce, which increases stability and tire-to-track adherence at high speeds.
Stabilizer, generally used to create down forces, increasing stability and tire-to-track adherence at high speeds.
- AMBER LIGHTS look up translate image
- Lights used on the christmas tree to warn the driver of the start of the race. The time between lights depend on the style of racing. Typically there is .4 for the 'Pro Start' tree where there is only one amber light then green, or 'Bracket Racing' at .5 seconds between each light as the tree counts down.
- ARM RESTRAINTS look up translate image
- Restraining straps to restrict arm movement in a car accident.
- BALLAST look up translate image
- A controlled amount of weight, functionally positioned, used to help car meet class weightrequirements.
- BANG THE BLOWER look up translate image
- an explosion inside the supercharger caused by a flame from the combustion process accidentally re-entering the supercharger, where fuel and air are present. Generally caused by a stuck or broken intake valve that normally would be closed during the combustion sequence.
- BELLY PAN look up translate image
- Generally, a skin of aluminum or fiberglass used to cover the under carriage of vehicle,assisting in preventing turbulence and air drag.
- BIG END look up translate image
- Far side of the track near the finish line.
- BLEACH BOX look up translate image
- Section of track before the starting line where cars spin the tires in water.
- BLOWER look up translate image
- A crank driven air-to-fuel mixture compressor which increases atmospheric pressure on the engine, resulting in added horsepower. Also commonly refered to as a supercharger.
- BLUEPRINTING look up translate image
- The meticulous matching to factory specifications all parts and/or components.Dressing parts to absolute design callout or manufacturer's specifications.
- BOTTOM END look up translate image
- Near side of the track past the starting line.
- BRACKET RACE look up translate image
- BRACKET RACING look up translate image
- Bracket Racing is when two vehicles of unequal speed face off at the tree. When bracket racing, the green light comes on for the slower car First. Races often come down to the 1/100s of seconds of reaction time which are gained or lost, depending on how good your reaction times are. (.500 is perfect). (.400 on a pro-tree).
- BREAKOUT look up translate image
- Used only in handicap racing, "breakout" refers to a contestant running quicker than he or she "dialed" his or her vehicle (predicted how quick it would run). Unless the opponent commits a more serious foul (e.g., red-lights, crosses the centerline, or fails a post-race inspection), the driver who breaks out loses. If both drivers break out, the one who runs closest to his or her dial is the winner.
A racer running quicker than he or she "dialed in" his or her vehicle. Unless your opponent commits...(more)
- BUMP SPOT look up translate image
- The elapsed time of the last qualified driver in a closed field, (i.e. the 16th position in a field open to only the 16 quickest qualifiers) The driver can be "bumped" out of the field if bettered by a someone currently not qualified.
- BUMPED look up translate image
- When a driver loses standing in qualifying position. See Bump Spot.
- BURN-OUT look up translate image
- Spinning of rear wheels at high RPM in water to heat and clean drive tire rubber prior toa run, resulting in increased traction.
- BURNDOWN look up translate image
- An intense starting line psychological battle between 2 drivers in which each refuses to fully "stage"for the race. The objective is to break an opponent's concentration, overheat their engine or cool down their tires.
- BURNED PISTON look up translate image
- When a cylinder runs lean (too much air in the air-to-fuel mixture) and excessive heat burns or melts the piston.
When a cylinder runs lean (too much air in the air-to-fuel mixture) and excessiveheat burns or melts the piston.
- BURNOUT look up translate image
- spinning the rear tires in water to heat and clean them prior to a run for better traction. A burnout precedes every run.
spinning the rear tires to heat and clean them prior to a run for better traction.
- BYE RUN look up translate image
- A lone run given to a randomly chosen car, because of an unequal number of cars in theround.
- C.C. look up translate image
- Cubic Centimeter, a metric unit of volume measurement, equal to approximately 0.061 cubicinch.
- C.F.M. look up translate image
- Cubic Feet per Minute. A measure of volume.
- C.I.D. look up translate image
- Cubic Inch Displacement. A measure of volume.
- CAMBER look up translate image
- Tilting of the top of the wheels from the vertical. When tilt is outward, camber is positive.
- CASTER look up translate image
- Tilting of steering axis forward or backward to provide directional steering ability. Positivecaster recommended for drag racing.
- CATCH-CAN look up translate image
- A container used to catch liquid overflow, preventing spillage on race track. Alsoknown as catch-tank.
- CHRISTMAS TREE look up translate image
- Also called the Tree, it is the noticeable electronic starting device between the lanes on the starting line. It displays a calibrated-light countdown for each driver.
An electronic starting device incorporating calibrated lights displaying a visualcountdown for each driver, activated by a designated official.
- CHRISTMAS TREE / TREE look up translate image
- The electronic starting device between the lanes on the starting line. It displays a light countdown for each driver.
- CHROMOLY look up translate image
- Also Chrome Moly. Short for Chromium Molybdenum steel. A very strong and lighttubing highly adaptable for race cars.
- CHUTE look up translate image
- Short for parachute or drag chute. Used to assist high-speed braking.
- CLUTCH CAN look up translate image
- The bell-shaped housing, or bellhousing, used to encase the clutch and flywheel.
Bell housing, the bell-shaped housing used to encase clutch and flywheel.
- CLUTCH DUST look up translate image
- The thick, black smoke which emanates from the rear of many professional class race cars. It is a normal by-product of the friction and erosion of carbon clutch discs during full engagement.
- CLUTCH LOCKUP look up translate image
- The progression of clutch-disc engagement controlled by an air-timer management system.
The progression of the clutch-disc engagement controlled by an air-timermanagement system.
- COMPETITION AREA look up translate image
- The staging lanes and race track surface.
- DEEP STAGE look up translate image
- to roll a few inches farther into the beams after staging, which causes the pre-stage lights to go out. In that position, a driver is closer to the finish line but dangerously close to a foul start.
- DEEP STAGING look up translate image
- When the racer inches his car forward, not completely passed the starting line(staging line) so much as to turn off the staging light.
- DELAY BOX look up translate image
- An electronic device, designed to improve reaction time, which permits a driver to initiate the run by releasing a button by hand, (rather than depressing the throttle by foot) at the first flash of the starting lights.
- DIAL IN look up translate image
- Anticipated elapsed time of vehicle to cover the quarter or eighth mile distance, usually measured to 1/100th of a second. Derived from the earliest handicapping computers into which predictions were entered by thumbwheel dials. Modern handicappers utilize keyboard entry. Dial-ins are used to handicap cars in eliminations. When two cars race, the two dial-ins are subtracted, and the slower car is given the difference in a head start.
- DIAL UNDER look up translate image
- when drivers in Super Stock and Stock (handicap categories) select an elapsed time quicker than the national index. Drivers select a dial-under, or e.t., that they think their cars will run based on previous performance. The breakout rule is in effect.
- DIAL-IN look up translate image
- The time you pick as your handicap. You want to run as close to this time as possible without going faster.
- DIAL-INS look up translate image
- Driver's predictions of E.T.'s their cars will run in their first eliminations.
- DIALING UNDER look up translate image
- Allows competitors in Stock and Super Stock the option of selecting a time fasterthan the National Index. Applied in handicap elimination racing where breakout is in effect.
- DIAPER look up translate image
- an absorbent blanket made from ballistic material, often Kevlar, that surrounds the oil pan to contain oil and parts in case of an engine explosion; required for Top Fuel, Funny Car, Top Alcohol Dragster, and Top Alcohol Funny Car.
A blanket made from ballistic and absorbent material, often Kevlar, that surrounds the oilpan and serves as a containment device during engine explosions.
- DISPLACEMENT look up translate image
- In an engine, the total volume of air/fuel mixture an engine is theoretically capable ofdrawing into all cylinders during one operating cycle.
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