Car Classes


The following information in no way covers all of the relevant rules and regulations which must be followed
when building a legal race vehicle for SCTA or BNI events.  It is the responsibility of the competitor to make sure
their race vehicle(s) meets all safety and class requirements before competing at El Mirage, Muroc or Bonneville!

Please refer to the current Rule Book for the "Final Word" on your class.

Streamliners Lakesters
Electric Turbine
Modified Roadster Fuel - Gas Roadster
Rear Engine Modified Roadster
Street Roadster Vintage Coupe / Sedan
Oval Track Classic
Competition Coupe
Altered Coupe Gas Coupe / Sedan
Modified Sports Modified Pick-up Truck
Modified Mid/Mini Pickup Production Coupe / Sedan
Production Supercharged Grand Touring Sport
Production Pickup Production Mid/Mini Pickup
Unlimited Diesel Truck Modified Diesel Truck
Highway Hauler Diesel Truck

Engine Classes            Body Classes with Engine

The car classes are divided into four general categories:  Special Construction, Vintage, Modified, and Production. The general rules for each category apply to all classes in that category.

SPECIAL CONSTRUCTION CATEGORY

This category is the pinnacle of the straightaway racer’s art. It contains two groups, the unlimited Streamliners and open wheeled Lakesters, running both blown and unblown, gas or fuel engines. These are all-out straightaway vehicles with non-stock engine blocks allowed.  Innovation is unlimited.  Modified production bodies are forbidden.

It is strongly recommended that all new vehicles be submitted for a pre-event inspection by appointment with the Technical Committee.  If not practical because of distance, photographs and drawings may be submitted to the Technical Committee Chairman:

Steve Batchelor, 15851 E. Ave. Y-4, Llano, CA 93544, (661) 944-4273

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STREAMLINER - /BFS, /FS, /BGS, /GS, /DS

This class is for the all-out land speed record car. Cars in this class must have at least four wheels, but they need not be arranged in a rectangular configuration. The design of the body is restricted only to the extent that at least two (2) wheels must be covered.

Engine classes allowed are W, AA, A, B, C, D, E, F, G, H, I, J, K, XO, XF, XXF, XXO, & V4.

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LAKESTER - /BFL, /FL, /BGL, /GL

Special cars constructed in such a way that there is no streamlining, fairing or covering of the wheels and tires. 

Engine classes allowed are: W, AA, A, B, C, D, E, F, G, H, I, J, K, XF, XO, XXF, XXO & V4.

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ELECTRIC VEHICLE - /E

This class is for vehicles using electric power as the sole means of propulsion. The vehicles must be wheel driven, either front or rear. Four wheel drive is allowed. THE BODY CONFIGURATION IS UNLIMITED.  The class will be based on vehicle weight less driver.  The entrant MUST provide an annual weight certificate for classification purposes.

Class I under 1099 lb. (less than 500 kg)

Class II 1100-2200 lb. (500-1000kg)

Class III 2201 lb. and over (over 1000 kg)

 

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TURBINE VEHICLE - /T

This class is for vehicles using turbine power (external combustion), as the sole means of propulsion. The vehicles must be wheel driven, either front or rear. Four wheel drive is allowed. THE BODY CONFIGURATION IS UNLIMITED.  The class will be based on vehicle weight less driver. The entrant MUST provide an annual weight certificate for classification purposes.

Class I under 1099 lb. (less than 500 kg)

Class II 1100-2200 lb. (500-1000kg)

Class III 2201 lb. and over (over 1000 kg)

 

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VINTAGE CATEGORY

This category is specifically intended for the lovers of antique iron. Although fiberglass and aluminum bodies are allowed, they must be an exact replica of an American production car, except for the Vintage Oval Track class. No modification is allowed to the body proper from the stock firewall location back and the window down, and only limited modifications are allowed to the hood and top.

This category runs the gamut from the basically stock Street Roadster and Vintage Gas Coupe to the slightly modified Highboy Roadsters and Vintage Altered Coupes, to streamlined Modified Roadsters and Vintage Competition Coupes and Vintage Oval Track cars.

Except for the Vintage Oval Track vehicles, only automobile bodies produced by an American manufacturer prior to 1948, at a rate of 500 or more yearly, or exact replicas of such bodies are allowed.  Tops may be chopped, but no other alteration to the contour or size of the body shell is allowed, except as specifically allowed in the class rules.  Wheel wells may be filled, but not deepened.  Rear axles may be narrowed, as long as no part of the tires extend within the body shell.  Turbochargers are not allowed on Vintage class engines competing in Vintage Body classes, see Section II-1.

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MODIFIED ROADSTER - /BFMR, /FMR, /BGMR, /GMR

In addition to the general category requirements, cars in this class must have a production roadster body or an exact replica of a roadster body produced between 1923 and 1938.

Engine classes allowed are : AA, A, B, C, D, E, F, G, H, XF, XO, XXF, XXO, V4 & V4F

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FUEL-GAS ROADSTER - /BFR, /FR, /BGR, /GR

In addition to the general category requirements, cars in this class must have a production roadster body or an exact replica of a roadster body produced between 1928 and 1938.

AA, A, B, C, D, E, F, G, H, XF, XO, XXF, XXO & V4.

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REAR ENGINE MODIFIED ROADSTER - /BFRMR, /FRMR, /BGRMR, /GRMR

In addition to the general category requirements, cars in this class must have a production roadster body or an exact replica of a roadster body produced between 1928 and 1938.

AA, A, B, C, D, E, F, G, H, XF, XO, XXF, XXO, V4 & V4F.

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STREET ROADSTER - /BSTR, /STR (Gas only)

Cars in this class must have an American production roadster body, or an exact replica of a body produced between 1923 and 1938. The body must not be altered in height, width or contour, and all stock panels, including cowl, cowl eyebrow and windshield post mounting brackets (stanchion) must be retained. 

Engine classes allowed are: AA, A, B, C, D, E, F, G, H, XF, XO, XXF, XXO & V4.

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Blown & Unblown VINTAGE Classes

BLOWN VINTAGE FUEL COMPETITION COUPE: XF/BVFCC, XO/BVFCC, XXF/BVFCC, XXO/BVFCC & V4/BVFCC

BLOWN VINTAGE GAS COMPETITION COUPE: XF/BVGCC, XO/BVGCC, XXF/BVGCC, XXO/BVGCC & V4/BVGCC

BLOWN VINTAGE FUEL ALTERED COUPE: XF/BVFALT, XO/BVFALT, XXF/BVFALT, XXO/BVFALT & V4/BVFALT

BLOWN VINTAGE GAS ALTERED COUPE: XF/BVGALT, XO/BVGALT, XXF/BVGALT, XXO/BVGALT & V4/BVGALT

BLOWN VINTAGE GAS COUPE and SEDAN: XF/BVGC, XO/BVGC, XXF/BVGC, XXO/BVGC & V4/BVGC.

VINTAGE COMPETITION COUPE: XF/VCC, XO/VCC, XXF/VCC, XXO/VCC & V4/VCC

VINTAGE GAS COMPETITION COUPE: VF/VGCC, XO/VGCC, XXF/VGCC, XXO/VGCC & V4/VGCC

VINTAGE FUEL ALTERED COUPE: XF/VFALT, XO/VFALT, XXF/VFALT, XXO/VFALT & V4/VFALT

VINTAGE GAS ALTERED COUPE: XF/VGALT, XO/VGALT, XXF/VGALT, XXO/VGALT & V4/VGALT

VINTAGE GAS COUPE and SEDAN: XF/VGC, XO/VGC, XXF/VGC, XXO/VGC & V4/VGC

The rules in these classes are identical to the respective Modified category classes, except that only 1948 or earlier bodies with XF, XO, XXF, XXO, or V4 engines are allowed. 

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VINTAGE OVAL TRACK /VOT

The Vintage Oval Track class is for old style race cars with pre-1948 engine block design, i.e., no modern overhead V-8’s or blowers. This class is for vintage-engine, old-style open wheel, rear drive, dirt track and Indy, one or two seat cars, with a tapered tail, cowl, and belly pan extending at least from the firewall to behind the driver’s seat. 

Engine classes allowed are XO, XF, XXF, XXO, V4.

MIDGET VINTAGE OVAL TRACK /MVOT

Maximum CID-Midget Vintage Oval Track/MVOT

150 CID Flathead

125 CID Overhead

 

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CLASSIC CATEGORY - /CBFALT, /CFALT, /CBGALT, /CGALT, /CPRO, /CPS

This category encompasses American coupes and sedans between 1928 and 1981.  The classes within this category are intended to provide a venue for coupes and sedans from the "Golden Era" of American Automobile production.

Engine classes allowed are AA, A, B, C, D, E, F

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MODIFIED CATEGORY

This category encompasses American and foreign coupes, sedans and pickups (with full stock beds), unaltered in height, width or contour, and with all stock panels mounted in original relationship to each other, which have been modified to such an extent as to no longer fit into the production category. Cars generally accepted as sports or Gran Tourissimo coupes are specifically forbidden. A generic requirement for this category is that the car must have been originally produced with suitable seating for four (4) average adult persons.

Within the Modified category, the amount of modification determines the class. For example, a Gas Coupe is basically a Production car with an engine swap, an Altered is a Gas Coupe with headlights and grille covered and the engine set back, a Competition Coupe is an Altered with the nose lengthened and streamlined.

Vehicles competing in the Competition Coupe and Modified Sports classes must have documentation showing the stock vehicle BEFORE modification.

It is REQUIRED that vehicles in this category which exceed 200 MPH, or if the existing record is over 200 MPH, must have roof rails.

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COMPETITION COUPE & SEDAN - /BFCC, /FCC, /BGCC, /GCC

Production coupe or sedan body unaltered in width or contour. 

Engine classes allowed are: AA, A, B, C, D, E, F, G, H, I, XF, XO, XXF, XXO

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FUEL ALTERED COUPE - /BFALT, /FALT

GAS ALTERED COUPE - /BGALT, /GALT

This class encompasses coupe or sedan bodies, 1928 or later, unaltered in height, width, length or contour, mounted in the conventional manner with all panels mounted in the original relationship to each other.

Cars in this class are considered in the Modified Category and should comply with the General Rules of the category

Engine classes allowed are: AA, A, B, C, D, E, F, G, H, I, XF, XO, XXF, XXO

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GAS COUPE and SEDAN - /BGC, /GC

This class encompasses coupes, sedans, and convertibles which must have an engine swap, quickchange rear end, or a non-stock supercharger, any one of which makes the car ineligible for competition in Production class.  Gas Coupe class includes Camaros, Barracudas, 1958 or later T-Birds, Mustangs, compacts and other cars of this type. 500 must have been produced yearly. 

Engines classes allowed are: AA, A, B, C, D, E, F, G, H, I,J, XF, XO, XXF, XXO

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MODIFIED SPORTS - /BFMS, /FMS, /BGMS, /GMS

This class is intended for production sports cars as accepted for GT class which have been modified to such an extent as to make the vehicle illegal for the Production Category. This class is limited to production, a minimum of 500 vehicles of the same model for sale to the general public, sports cars, examples of which include Chevrolet Corvette, Porsche 911, Mazda RX7, and Nissan Z series automobiles.

This class may run Nitrous Oxide, but will be advanced two (2) engine classes.

Engine classes allowed are: AA, A, B, C, D, E, F, G, H, I

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MODIFIED PICKUP TRUCK - MP (Gas Only)

This class is for 1946 and later American made pickup trucks with full stock bed, unaltered in height, width or contour, with all panels mounted in the original relationship to each other. Samples of allowed trucks include but are not limited to: Chevrolet C series, Ford F series and others.

Engine classes allowed are: AA, A, B, C, D, E, XXO, XXF, XO & XF.

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MODIFIED MID/MINI PICKUP TRUCK - M/MP (Gas only)

This class is for 1972 and later American and Foreign made mid and mini sized pickup trucks with full stock bed, unaltered in height, width or contour with all panels mounted in original relationship to each other. Samples of allowed trucks include but are not limited to: Chevrolet S-10, Ford Ranger, Nissan and Toyota.

Engine classes allowed are; C, D, E, F, G, H and I.

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PRODUCTION CATEGORY

This category is intended to represent typical transportation vehicles which may be purchased from ANY automobile dealer. 

PRODUCTION RECORDS ARE SUBJECT TO APPROVAL AND WILL BE CERTIFIED ONLY AFTER COMPARISON WITH THE MANUFACTURER’S SPECIFICATIONS FOR THE MODEL ENTERED. THE ENTRANT IS REQUIRED TO PROVIDE SUITABLE DOCUMENTATION.

XX/PRO class is limited to cylinder head port configuration as originally designed. This applies to the XXF and XXO engine classes.

PRODUCTION COUPE and SEDAN - /PRO (Gas Only )

This class is for American and foreign coupes, sedans, unaltered in height, width or contour, with all stock panels mounted in original relationship to each other. This category does not include cars properly classified as Sports or GT, such as foreign cars without rear seats suitable for continued adult occupancy. It does include Mustangs, Camaros, Barracudas, 1958 or later Thunderbirds, compacts, and other American cars of this type. 

Engine classes allowed are: AA, A, B, C, D, E, F, G, H, I, J, XF, XO & XXO.

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PRODUCTION-SUPERCHARGED - /PS (Gas Only)

This class is intended for American and foreign coupes, sedans and pick-ups (with full stock beds) that meet the requirement of the Production Coupe and Sedan Class that are equipped with factory supercharger systems. The vehicle must be as originally equipped and configured.

Engine classes allowed are C, D, E, F, G, H , I, and J.

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GRAND TOURING SPORT - /BGT, /GT (Gas Only)

Series production sports cars and coupes, as well as limited production cars by a recognized automobile manufacturer, which are primarily intended for comfortable high speed touring.

Rules for this class will be strictly enforced to ensure that cars entered herein are typical of street machines which may be purchased from an automobile dealer.

Engine classes allowed are: AA, A, B, C, D, E, F, G, H, I, and J.

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PRODUCTION PICKUP TRUCK - PP (Gas Only)

This class is for 1946 and later American made pickup trucks, with full stock bed, unaltered in height, width or contour, with all panels mounted in the original relationship to each other. Samples of allowed trucks include but are not limited to: Chevrolet C series, Ford F series and others.

Engine classes allowed are: AA, A, B, C, D, E, XO & XF.

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PRODUCTION MID/MINI PICKUP TRUCK - P/MP (Gas only)

This class is for 1972 and later American and Foreign made mid and mini sized pickup trucks with full stock bed, unaltered in height, width or contour with all panels mounted in original relationship to each other. Samples of allowed trucks include but are not limited to: Chevrolet S-10, Ford Ranger, Nissan and Toyota.

Engine classes allowed are: C, D, E, F, G, H and I.

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DIESEL TRUCK CATEGORY

UNLIMITED DIESEL TRUCK - U/UDT

This class is for diesel fuel powered trucks, only so modified as to be illegal for Modified Diesel Truck class. Any frame and running gear may be used and multiple engines are allowed. The body may be highly modified.

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MODIFIED DIESEL TRUCK - /MDT

This class is for diesel fuel powered trucks only, with modified bodies not otherwise legal for diesel truck class. The body may not be altered in height, width or length. Truck frame and running gear must be used. 

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HIGHWAY HAULER - /HH (2 axle/3axle)

American and foreign PRODUCTION diesel powered trucks of not less than 14,500 lbs., unaltered in height, width and contour with all stock panels mounted in the original relationship to each other. 

NOTE: All entrants in the Diesel Truck Classes must have equipment available to move a disabled vehicle from the race course.

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DIESEL TRUCK - /DT

This class is intended to represent typical diesel pickup trucks which may be of either American or foreign manufacture. This class is limited up to and including one (1) ton vehicles. The body must remain unaltered in height, width and contour, with all stock panels mounted in original relationship to each other.

Engine classes allowed are: AA, A, B, C, D, E, F, G, H