Indy savvy: get the jargon Read through the following definitions in order to understand the jargon surrounding the 1993 Molson Indy, Start your engines «.- Aerodynamics: {n racing, the study of airflow and the forces of resistance and pressure resulting from the flow over, under and around a moving object (race car). Balactava: Protective, fire-resis- tant hood or mask worn by drivers under their helmets. BKanking: The measurement of in- cline in a race track’s turns, and sometimes in its straightaway. Banking is generally described in degrees measured from the in- side of the track ie the outside wall. . Cars can run at higher speeds on a banked surface, based on the principals of centrifugal force. Bodywork: The visible, painted carbon composite pieces that cover the car. Boost: Manifold intake pressure above ambient atmospheric pressure which can be increased or decreased from the cockpit depen- ding on competitive needs. More boost consumes more fuel, so drivers use judgement and team feedback to govern its use. Measured in inches of mercury. Compound: A formula or ‘‘reci- pe’ which determines the different qualities and composition of a racing tire. . Compounds are developed tc maximize performance with each racetrack surface in mind. Wear, grip and temperature are important factors in determining the correct tire compound. Drafting (slipstreaming): The vacuum {eft in the trail of any fast-moving car which caa often pull following cars along. Drafting enables trailing drivers to increase speed and save fuel. Drafting is not as significant a factor in IndyCar racing as in other larger, full-bodied styles of Tacing because of the limited frontal area and small size of Indy 89 JEEP CHEROKEE PIONEER Really nicel! ... 212,988! HEROKEE LAREDO ,. pw. al, adcona® ..... 12, 988! Yea 93 JEEP ChEROKEE COUNTRY, Black “ . 21, 988! ; HARSLE YING. 1 AS EKGe, cars, Dyno: From dynometer, a machine used fo test and monitor an engitic's horsepower and other performance factors. Handling: The performance of a car while racing. The response characteristics of a race car or “how it handles’? are determined by its tires, chassis, suspension ge- ometry, aerodynamics and other factors, Horsepower: A unit to measure the strength of an engine. One horsepower equals 33,000 foot- pounds per minute. . in other words, the force needed to Nift 33,000 pounds a distance of one foot per minute. A typical Indy car develops 750 horsepower. . Kevlar: A brand name of a specific type of carbon fibre, used extensively throughout an Indy car. Kevlar is known for its weight and strength advantages. Most drivers use carbon fibre helmets. Line: The quickest way around a race circuit, taking advantage of a racer’s braking, cornering: and acceleration techniques. A dark shading or groove often appears as tire rubber is left in the line. Marbles: The ‘“‘dirty’’ part of a race track outside the preferred ‘Yine.”? Marbles, round bits of rubber rolled off soft racing tires, ‘combine with pebbles, dirt and small pieces of debris to create a slippery track surface. Nomex: The predominant material in fire suits worn by drivers, team memters and cfficials. The original Nomex was devel- oped by NASA for the. Apollo space program in the 1960s. Fiame-retardant underwear, shoes, socks, gloves and helmets cemplete the protective outfit. Oversteer (loose): An often-heard driver complaint — 2 handling condition describing the tendency of a car’s rear wheels to break away from the pavement, sliding its rear end toward the outside. The condition can be remedied by a tire change or suspension 90 JEEP CHEROKEE LAREDO Aled nav... 90 JEEP WAGONEER “Rane ‘et ya" 86 JEEP Ch ROREE Ideetiime & spociat Not 4 AnCaresd 1660 Marine Dr., North Van. CALL US COLLECT th ddd 0 148, 988 98! ; adjustment. Pop-off valve (manifold pressure relief valve): A device maintained by Championship Auto Racing Teams Inc. which limits manifold intake pressure and thus keeps competitors, within the maximum pressure limit of 45 inches of mercury absolute (50 for Buicks). Setup: Adjustments made by the crew to the variable components of a car — shock absorber set- tings, stagger, gear ratios, wing angles, etc. — 10 try to gain op- timum performance at a given (wack, inchiding educated guesses as to weather and track condi- tions. Sidepods: Pieces of the sides of the car that control air flow and house the radiators, oi! coolers and computerized engine management systems. The sidepods also serve to pro- tect the driver in the event of an impact. . Stagger: The difference in cir- cumference between right- and left-side tires. In oval events, it is preferaole to have right-side tires that are slightly taller to help the car turn. The principle is demonstrated by rolling a cone-shaped object on a flat surface — it rolls in a circle. For road circuits, most cars will have all four tires equal. This is called ‘‘zero stagger.’” Tub: The chassis or basic structure of the race car, made of alumi- num and carbon fibre composites. Tubs are designed to incredibly high standards to protect the driver in the event of an impact. Turbulence: Pockets of swirling air left behind by a fast-noving vehicle. When Indy cars race at speed, they create difficult hand- ling conditions for the cars fol- lowing. Understeer (push): Another fre- quent driver complaint. A hand- ling characteristic where the front end tends to ‘‘push’’ or - drift towards the outside of a turn. Altered by a change in setup. 1992 CADILLAC ELDORAD Loaded with opoons, beauttul automate et ia . 1992 CHEV BERETTA GT 2 dt., tots of options, immacuay. 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