Gridlife Technical Glossary
The Following is a Technical Glossary for the Gridlife Event series. The words defined in this Glossary are used in the rules of any of the Gridlife Event’s rules. The contents of this glossary and definitions of words are subject to errors and omissions changes , and the Glossary can and will be updated at any time. The glossary will never be updated DURING an event, and if the definition of a term is changed in any significant way (other than wording clarification or spelling), it will occur after a season has completed , and before a new season has begun. Definitions of words previously undefined may happen at any time, except DURING an event.
A-Pillar – The forward most roof support in a passenger car, which also acts as the side support for the windshield.
Active Aerodynamic Devices – Aerodynamic devices that allow any degree of freedom in relation to the entirely sprung part of the car (chassis/ monocoque) while the car is being operated. Includes movable or hinged side skirts. Devices that can be adjusted from within the cockpit or electronically while the vehicle is being operated fit this definition.
Active Suspension – Automatic ride height and / or roll control by an active system receiving power from a pump or compressor, or some other method.
Aerodynamic Device, Or “aero” – An attachment to a car intended to generate atmospheric downforce by the action of air flowing through, around, or under the attachment.
Aftermarket - a part or system of parts to be installed on a car with the intention of increased performance. Original equipment replacement parts from a different manufacturer with the intention of replicating function and form of original equipment parts are not considered "aftermarket". Original equipment supercharger or turbo systems are not considered "aftermarket" on the engines they are originally installed on, in the case of engine swaps.
Air Dam – An aerodynamic device at the lower front of a car, intended to divert some of the air which would normally pass under the car when the car is in motion.
AN Coupler – A threaded high pressure hydraulic coupling or fitting used with metal braided hose or rubber hose.
Anti-Roll Bar (Sway bar) – A torsion control device connected to a car’s structure, and to moving portions of the suspension, which is intended to control body roll and is a key suspension tuning device.
Anti-Submarine Strap – A safety strap intended to provide additional support against motions of the driver’s lower torso “submarining”, or sliding forward and down in a frontal impact
Attachment Points (Suspension, also known as Pickup Point) – The locations at which the fixed and moving ends of a shock absorber or strut are mounted and/or the location of the suspension
component on the frame or unibody of a car.
“As Viewed From Above” - 1. In regards to tires, as viewed from directly above the tire. 2. In regards to splitters, as viewed directly above the splitter as measured from all points on the bumper skin. 3. In regards to wings, as viewed from the maxmimum widest point of the car 4. In regards to rear wings, no portion of the wing can can be more 5” reardward of the most reardward point of the OEM bodywork.
B-Pillar – The center-most roof support in a passenger car, typically at the back of the door opening.
Baffle – A plate or panel in a fluid container, which is designed to stop the movement or release of the fluid within the container when it is subject to changing directional movement forces.
Ball Joint – A bearing or swivelling component, generally in suspension or steering systems, consisting of 2 mating surfaces, 1 convex and 1 concave, which permits a range of angular displacements of the 2 attached shafts over a prescribed range. Typically an attachment point for the bottom and/or top of a suspension upright or knuckle
Ballast –a mass fastened inside a car to increase the weight of the car, serving no other purpose.
Battery (electical)- a component storing electrical energy for the use of powering the starter or other components of a car.
Battery Box – A covered container for an on-board electrical storage battery
Body/Bodywork- the factory supplied exterior metal or composite surround of a vehicle. In relation to composite body panels allowed, a “hatchback style” car, such as a 90+ Integra, RSX, etc. the truck allowance will cover a hatchback replacement with alternate materials such as carbon fiber.
Bowler-a driver who should probably take up bowling instead.
Brake Light – A light mounted on the rear of the car, which may be actuated only by driver braking actions of pushing a pedal or lever.
C-pillar-the rearward-most support of a roof structure on a car.
Canard-an aerodynamic device, factory equipped or additionally installed, consisting of a flat surface protruding from the side of vehicle (potentially wrapping around the front as well) designed to deflect air in an upward motion or guide air in a different direction than it would naturally flow . Vertically placed wheel opening perimeter tire deflectors are not considered canards unless they reach roughly past the "2 o'clock or 10 o'clock " position of the wheelwell opening.
Car-the sum of the components and things you silly geese drive while attempting to race or do time attack or HPDE .
Catch Tank – A container or box for collecting liquid, generally lubricant or coolant, vented or overflowed, from an engine, transmission, transaxle, or differential and preventing the loss, from the car, of the liquid.
Chassis- the main structure of a car. See also Unibody
Climate Systems - the major working pieces of a passenger compartment heating system, functional or non functional.
Clutch – A device used to permit the driver to engage/disengage a coupling between the engine and the transmission or transaxle.
Component – A part of an assembly.
Cooling System – Those components directly associated with the cooling of an engine, including hoses, fans, pumps, radiators, internal engine passages, etc.
Diffuser- aerodynamic device in the rear lower portion of the vehicle intended to smooth airflow or straighten airflow from under the vehicle as it passes. Usually at a slight upward angle, and sometimes creating slight downforce in the rear of a vehicle, while also intended to reduce drag commonly.
Displacement (Engine size) – Reciprocating engine: the volume of 1 cylinder times the number of cylinders . Rotary engine: the difference between the largest and smallest volumes of the working chamber, times the number of lobes, multiplied by the number of rotors.
Dual Element Wing - Multiple horizontal airfoils on the same upright structure having a measurable gap between them.. .
Dry Sump – An engine oiling system in which the oil ispumped to an external storage tank by a “scavenge pump,” and another pump or pumps return a supply of pressurized lubricant to the engine from the storage tank, driven by external gears or belt
Engine- makes vroom noises, provides power to wheels. Sucks air in, squishes, makes it expolode, blows air out .
E85- a fuel type consisting of mostly ethanol (85% denatured ethanol fuel, 15% other hydrocarbon fuel, usually gasoline). Higher ethanol content fuels also fall under this general heading in Gridlife series.
Factory - a term referring to the original configuration of an item of a car, as equipped at time of initial purchase when new.
Fender – body panel covering a wheel assembly.
Fender Flare – An attachment to an existing fender which extends the fender outward so as to more completely cover the tire a wheel underneath
Fire Extinguisher – An on-board container charged with approved fire extinguishing material which provides the driver or others with the capability to extinguish small fires.
Fire System – A fire extinguishing system designed to be activated in the event of fire, whose purpose is to extinguish or retard the fire. Automatic or manually controlled.
Flat bottom -a style of undertray going from front to back of a car, having no holes or vertical deviations, in order to improve airflow and aid in downforce
Fuel – Mixture, that when mixed with air, is burned in an engine to produce power.
Fuel cell-container for housing Fuel that is intended to be more crash resistant than a factory equipped fuel tank
Hatchback - A vehicle in which the peak of roof in rear must be within 2 ft of rear of car.
Interior- nonstructural components of the car , factory equipped on the inside of the body or unibody, to enhance the feel and driving experience (such as dash, carpet, plastics, and trim panels)
OSB- “other sports beckon”. See also “bowler”.
Point ( rollcage attachment)- a spot on the frame or unibody where a rollcage or rollbar attaches to the frame or unibody.
Professional (driver licensing) - refers to someone currently licensed in a non-amatuer racing series (scca, nasa, chump, wrl, AER, lemons, Gridlife are allowed)
Quarter Panel-the section of rear bodywork surrounding the rear wheel openings.
Roll Cage- safety structure built from approved material intended to make the vehicle safer in a large crash. See Gridlife GTCR (general trackday and competition rules) for more info.
Shock adjustment (single, double, etc)-refers to the dampening adjustment of the shocks only, and not the spring height adjustment of a coilover, etc.
Significant Aero - defined primarily as splitter, side skirts, diffuser, and rear wing. Side Skirts are not considered to be “significant” aero if they do not extend more than 2” past the exterior tire track width of the vehicle.
Silly Goose- a driver who is causing upsettedness to the Gridlife staff, either on purpose or on accident, by driving poorly and being a silly goose.
Squid-a driver who goes off the track in the first session of the day. Also known as a silly goose.
Stock (also refered to as “factory” or “OEM” ) – In the exact same function/configuration, or location as supplied by the original manufacturer of the vehicle.
Strut Type Suspension – consists of three pivoting attachment points including a single upper attachment point, the spindle being mounted on a telescoping post with no vertical movement at the top attachment point.
Splitter-a horizontal or near-horizontal aerodynamic device at the front lower portion of the car, intended to split airflow from the front of a car and under a car, and provide downforce
System – An assembly of components with an identifiable function/job
That Guy- the Silly goose who is intent on ruining the fun for everyone else by intorturating the rules and/or taking all this “turning money into noise” stuff too seriously. Or wearing his/her drivers suit to McDonalds or another eatery when street clothes would be far more adequate.
Transmission (Gearbox) – An assembly of driver-selectable gears in an independent housing, located between the engine and powered wheels, whose job is to alter the rotational velocity of the wheels
Tow Hook- a point on the chassis or unibody intended to easily secure a tow strap in the event of the vehicle needing a tow. Must be strong enough to survive the vehicle being towed from a sand trap
Turbocharger – An induction system compressor component, spun by exhaust gases of engine, which provides forced flow of the fuel/air mixture into the engine by means of manifold positive pressure (also called boost pressure)
Unibody – A type of construction in which primary vehicle structure is built from panels and reinforcements, permanently fastened together, generally by welding or bonding, into the completed structure. Unibody vehicles do not have separate “frames” for suspension.
Undertray – An attachment to the bottom of a car intended to smooth airflow and/or to offer driver protection in this region of the car.
VIN- a number stamped on the chassis/unibody by the manufacturer . “vehicle identification number”
Wagon - A vehicle in which the peak of roof in rear must be within 2 ft of rear of car.
Windows- glass or polycarbonate surfaces on the side or rear of a car intended to allow the driver to see out
Windshield- forward facing window
Wing – An aerodynamic device attached to the structure of a car in rear, specifically intended to generate downforce from air flowing over the upper and lower surfaces, creating a pressure differential.
Wishbone Type Susp. – A type of suspension in which the lower and upper locating links are in the form of a wishbone or triangle , and provide the lateral and fore/aft movement of a wheel locating