MOTORCYCLE
7.B.1 Number/Classes:
All entries must have the number and class on each side of the motorcycle, be clearly visible with the rider in the riding position and must contrast with the background on which they are applied. All entry numbers must be a minimum of 3” high and 1” wide. All class designation characters must be at least 1” high. The number/class must be located on a flat, smooth vertical surface with a minimum dimension of 6” high by 8” wide. The surface may be part of the motorcycle or number plates may be used. Plates, if used, must be securely mounted; meet the minimum dimensions and any corners must have a 1” radius. The entire plate must be located ahead of a vertical line through the rear axle.
7.B.2.3 Fuel Pump Stop Switch Lanyard:If the ignition kill lanyard does not shut off the fuel pump, the motorcycle must be equipped with a tether type electrical shut-off device attached to the vehicle and the rider so the electric fuel pump is shut-off if the rider becomes separated from the motorcycle.
7.B.2.4 Gasoline Shutoff:
Gasoline class motorcycles must have a fuel shutoff operable from a normal riding position. An O.E.M. fuel petcock may comply with this requirement if it is within reach of the seated rider.
7.B.8 Tire Requirements: Tubeless, bias ply type tires may be run with tubes. If a tube is used, the speed ratings will be reduced one speed range, unless otherwise indicated by the tire manufacturer. Drag racing slicks are not allowed.
It is the responsibility of the entrant to check inflation pressures and tire and wheel condition immediately before and after every run.
0 to 130 MPH Production tires with a speed rating of H or higher.Low speed vintage motorcycles or motorized cycles, maximum potential speed less than 70 MPH, may be exempted from this requirement. A letter requesting exemption with sufficient supporting data to justify an exemption, including the vehicle’s capabilities and the manufacturer’s specifications and the design purpose of the tire, the load rating and speed rating, must be submitted to the Technical Chair, 45 days prior to the meet.
7.B.10 Wheels:
Wheels must have a minimum nominal diameter of 15 in. , except in the sidecar and streamliner classes. It is highly recommended that strict attention be paid to wheel alignment, wheel balance, spoke tension and tire run-out. Solid front wheels are not allowed except in the sidecar and streamliner classes if the wheel is fully enclosed by the body work. It is REQUIRED that front wheels be cross ventilated by an area equal to at least 25% of nominal rim circle area. Solid rear wheels are allowed. No wheel discs are permitted.
7.B.21 Nitrous Oxide Systems:
The nitrous oxide bottle pressure relief valve shall be vented away from the engine and rider, if located in an enclosed area, it shall be vented to the outside by a rigid line.
7.B.22 Chain Guard: All chain or belt driven motorcycle entries, (streamliners see Section 7.H.22), must be equipped with a metal chain or belt guard. If the guard is made of steel, it must be at least 3/32 in. thick, or if aluminum, at least 1/8 in. thick. Guards must be securely mounted in at least two places. The top run must be at least 1-1/2 times the overall width of the chain or at least 1/4” wider than the belt.
7.B.24 Ballast: Ballast may be used in all categories. All ballast must be located ahead of the rear axle (exceptSidecars and Streamliners. Ballast mounting tabs can extend past the axle. Ballast shall be securely mounted, bolted to the frame structure. The use of hose clamps, wire, strapping, tape, and tie wraps, etc. for securing weight or ballast is prohibited. Ballast shall not be used to streamline the vehicle. Visible ballast is not allowed in Production classes.
7.D.4 Class, Engine Classes, max displacement and No. of Engines:
P P, PP, PB, PPB, PV 3000 1
Production engines are permitted only in the Production frame classM All except UG & UF 3000 1
MPS All except UG & UF 3000 1
A All except UG & UF 3001 & above 2APS All except UG & UF All except UF & UG 2
S All All except UF & UG 2
SC All All except UF & UG 2
SCS All All except UF & UG 2
Classes defined and not restricted under items 7.D.1, 7.D.2, 7.D.3 and 7.D.4 are open for competition.
7.G SPECIAL CONSTRUCTION
7.G.11 Partial Streamlining:No part of the fairing ahead of the front axle may be lower than the top of the front rim at thhe axle vertical centerline or be forward of the front edge of the rim. There must be no streamlinig forward of the front edge of the front rim.7.H STREAMLINER
7.H.4 Roll Cage: Must completely surround the rider and must be fitted in the rider’s compartment. Minimum diameter is 1-1/4 in. with .090 in. nominal wall thickness, mechanical steel tubing. No galvanized pipe, black water pipe or threaded fittings are permitted. The design of the roll cage must incorporate the following features as a minimum: Two (2) roll bars, (one forward and one after the rider’s head), must be tied together and capped with a steel plate .090 in. thick. Said cap must cover the upper 140 deg. of the rider’s head. The roll bar must be braced with a tube on each side of the same dimensions. Rider head movement must be limited to no more than 2 in. to each side, top, or rear, with rider’s head in the normal position. Roll cage padding meeting SFI Specification 45.1 is required in the vicinity of the driver’s helmet.
7.H.20 Batteries: All batteries shall be properly secured with metal framework and fasteners. Batteries may be mounted in the driver’s compartment if sealed in an acid spill-proof box. All streamliners must be equipped with a main battery disconnect switch. The disconnect switch must be visible and clearly marked and placed in a location that allows shut-off if the streamliner has fallen on either side.
7.J ENGINE CLASSES
7.J.1 Production: Production engines must be the same model as the model of the frame being used and must have STOCK EXTERNAL APPEARANCE. Production motorcycles must use OEM cylinders, heads and crankcases to comply with this class. OEM engine displacement determines the displacement class for competition. Displacement may not be increased beyond that class limit. Starting mechanism must be retained and operable. Carburetors or throttle bodies must be OEM for that model production engine. All production engines run in gas class. See Section 7.D.3
SECTION 4 Definitions
The following is a list of sections with rules updates.
Words in bold print are the new changes.
It is assumed that persons looking at these changes has the 2006 edition of the rule book for comparison purposes. Only paragraphs with changes are shown.
4.B AIR INTAKES:
Ducted airflow devices, which are meant to provide combustion air directly to the engine. Air intakes shall not originate below the original stock location and, on rear engine cars the air intake must originate in the rear 50% of the body. Air intakes protruding from the front of the car, other than O.E.M. must not exceed 48 sq. in. of frontal area, and must not extend more than 12 in. and must not taper, except in classes where forward streamlining is allowed. Carburetors that protrude through the car’s hood must be covered with a flash shield.
4.I.1 CHANNELING:The lowering of the body over the frame rails.4.R HOOD SCOOPS:
On full body, unblown vehicles, where allowed, no part of the hood scoop shall extend more than 11” above the surface of the hood. On rear engine cars the hood scoop may be built on the engine cover. The scoop shall not extend more than 11” above the surface of the roof and no further forward than the front edge of the back window.4.AA SET BACK:
The feature of a car which is represented by the formula D/WB where D is the distance measured from the front spindle transverse centerline to the front-most spark plug hole or centerline of the front most cylinder on compression ignition engines and WB is the wheelbase.
4.BB WINDSHIELD POST MOUNTING SUPPORT:
An upright bar, post or support structure to which the windshield posts are bolted, i.e., 1928-1931 and Ford roadsters have this piece, 1926 -1927 and 1932-1934 Ford roadsters do not.
4.CC.9 Wings:
Wings are a special class of aerodynamic effect devices intended to provide down force, which are allowed ONLY on Streamliners, Lakesters, Modified Roadsters and Production bodies which had the wing as an option. For classification purposes, the wing is not considered as part of the body.
SECTION 5 CAR CLASSES
The following is a list of sections with rules updates.
Words in bold print are the new changes.
It is assumed that persons looking at these changes has the 2006 edition of the rule book for comparison purposes. Only paragraphs with changes are shown.
5.A.1 Streamliner - /BFS, /FS, /BGS, /GS, /DS
Engine classes allowed are S, AA, A, B, C, D, E, F, G, H, I, J, K, XO, XF, XXF, XXO, V4 and V4F
The Diesel Streamliner classes will be allowed to compete for records, line position and club points during the 2007 El Mirage Dry Lake season. This class cannot compete for the 2007 Season Championship.5.B.1 Modified Roadster - /BFMR, /FMR, /BGMR, /GMR
Wings are allowed. The wing width, including side plates, shall not be wider than the inner vertical plane of the rear tires. The maximum allowable height of the wing shall not exceed 65 in. from the ground as measured to the highest part of the wing. The rear of the wing, including side plates, may not be set back more than 18 in. behind the rear of the body. The total wing surface area shall not exceed 1152 sq. in. and the lowest portion of the wing shall be at least 12 in. above the roll cage structure. Multiple element wings are NOT allowed. Spoilers and four-wheel drive systems are NOT allowed.
5.B.1.a Rear Engine Modified Roadster - /BFRMR, /FRMR, /BGRMR, /GRMR
Wings are allowed. The wing width, including side plates, shall not be wider than the inner vertical plane of the rear tires. The maximum allowable height of the wing shall not exceed 65 in. from the ground as measured to the highest part of the wing. The rear of the wing, including side plates, may not be set back more than 18 in. behind the rear of the body. The total wing surface area shall not exceed 1152 sq. in. and the lowest portion of the wing shall be at least 12 in. above the roll cage structure. Multiple element wings are NOT allowed. Spoilers and four-wheel drive systems are NOT allowed.5.B.3 Street Roadster - /BSTR, /STR (Gas only)
In addition to the general category requirements, cars in this class shall have an American production roadster body, or an exact replica of a body produced between 1923 and 1938. The body shall not be altered in height, width or contour, and all stock panels, including cowl, cowl eyebrow and windshield post mounting supports, Section 4.BB, that are an integral part of the body, i.e. welded on or formed into the body sheetmetal, shall be retained. Stock panels, correct for the body year used, shall be mounted in their original relationship to each other. On roadsters with nonremovable windshield posts, the windshield structure may be cut off 1” above the lowest outer edge of the windshield frame. Replica panels shall be exact copies of stock panels in size and contour. Hood side panels, if used, are not required to have the stock louvers or doors but must follow the original contour of the stock side panel. Hood side panels may be trimmed away for clearance of structural chassis or engine components. Bubbles or bulges may cover modifications made to the hood side panel to clear engine components so long as they do not violate the applicable portions of streamlining, Section 4.C.C. Rear fenders are required. The fenders may be bobbed to the bottom of the body, but may not be relocated, narrowed, or widened. The outer edge of a bobbed fender can not be cut on a radius greater than the bottom of the original fender.5.C CLASSIC CATEGORY
The only change to this category and the classes within is the removal of the restriction against the use of a data recording system.
5.D.3 Gas Coupe And Sedan - /BGC, /GC
The following are not permitted: no streamlining as described in Section 4.CC unless specified, air vents, headlight air intake, channeling, exhaust outlets through the doors or hood, blocked off grilles or radiators. Taped or filled body, door or window seams and one piece front ends.
5.D.5 Modified Pickup Truck - /BMP, /MP
Production pickups with a supercharger and/or full-time four-wheel drive shall compete in this category and class. No streamlining as described in Section 4.CC is allowed, unless specified.Engine classes allowed are: AA, A, B, C, D, E, XF, XO, XXF and XXO
The Blown Modified Pickup classes will be allowed to compete for records, line position and club points during the 2007 El Mirage Dry Lake season. This class cannot compete for the 2007 Season Championship.5.D.6 Modified Mid/Mini Pickup Truck - /BMMP, /MMP
Production pickups with a supercharger and/or full-time four-wheel drive shall compete in this category and class. No streamlining as described in Section 4.CC is allowed, unless specified.Engine classes allowed are; C, D, E, F, G, H and I
The Blown Modified Mid/Mini Pickup classes will be allowed to compete for records, line position and club points during the 2007 El Mirage Dry Lake season. This class cannot compete for the 2007 Season Championship.5.F.2 Modified Diesel Truck - /MDT
Streamlining behind the cab such as elongated bed or similar body work, not to exceed the height of the stock bed is allowed. Class 8 trucks may have any fairing between the wheels and frame covers not to extend above the top of the rear tires or frame rail, which ever is higher. The body from the back of the cab forward may not be altered in height, width or length.
