GENERAL 2.B FUELS: FUEL CLASSES:
In fuel classes, any approved liquid fuel may be used. Examples of approved fuels are: all alcohols and ethers, hydrogen, nitro methane blends, nitrous oxide, and unapproved gasoline.
The S.C.T.A. defines gasoline to contain no nitrogen bearing compounds, no propylene oxide, no ethylene oxide, and no more than 10% methanol. The contest board may choose any test or combination of tests to assure that liquid fuels used in GASOLINE classes comply with these specifications. The tests may include but will not be limited to testing for the dielectric constant (D.C.) value, color comparisons, specific gravity, gas chromatography, mass spectrometry, and/or other testing methods. The addition of compounds containing oxygen, such as ethanol, methanol and other oxygenates, may produce a mixture with a D.C. greater than 15.0 as measured with a Kavlico Model FT-K01 “DC Meter” zeroed on reagent grade, pure CYCLOHEXANE. 15.0 is the current S.C.T.A. acceptable dielectric ceiling. Most gasoline will check under this ceiling. At a non-“EVENT” gasoline meet, any gasoline that measures 15.0 or less on the D.C. scale and meets all other S.C.T.A. requirements will be allowed.
All liquid gasoline blends can be tested and certified to have a specific D.C., color, specific gravity, and other chemical properties. All gasoline that is tested and meets the S.C.T.A. definition of gasoline may be allowed on a case by case basis by the Contest Board. It is recommended that unknown gas be submitted to the S.C.T.A. and checked before use in competition.
If the Contest Board establishes an “EVENT” gasoline or multiple gasoline or diesel fuel, those fuels shall be used for record attempts where required by class rules. A gasoline may be approved that does not meet the simple 15.0 or below D.C. constant measurement, if the S.C.T.A. Board receives proof from a reliable, certified source that the gasoline in question meets the S.C.T.A. definition of gasoline.
Gasoline, as produced, is a mixture of hydrocarbons which may include some S.C.T.A. acceptable oxygenates. The S.C.T.A. further defines gasoline as a liquid that does not contain nitrogen bearing compounds, nor propylene oxide, nor ethylene oxide, and no more than 10% methanol. Gasoline is an electrical insulator, or dielectric liquid, and its Dielectric Constant (D.C.) represents its relative effectiveness as an insulator. The average D.C. for the mixture of hydrocarbons and possibly allowable oxygenates which comprise gasoline varies but is testable and definable for the approved liquids which follow the S.C.T.A. definition of gasoline. For select events the S.C.T.A. will specify the use of an “EVENT” gasoline, see Section 2.B. D.C. numbers and other chemical properties for any approved “EVENT” gasoline are known. These properties are recorded and the records are maintained by the S.C.T.A. technical staff.
For other events where a specific “EVENT” fuel is not called out, those same fuels provided as an “EVENT” gasoline may be used. The approved “EVENT” gasoline has had the chemical properties and D.C. recorded by the S.C.T.A. These records are maintained by the S.C.T.A. technical staff. When a competitor at a non “EVENT” gasoline meet wishes to use a fuel that has not been approved for use as a prior “EVENT” gasoline, that fuel must test under the specified S.C.T.A. D.C. ceiling of 15.0 as measured with a Kalico Model FT-K01 “DC” Meter. If the proposed liquid fuel does not fall underneath the S.C.T.A. specified D.C. ceiling, appropriate testing for compliance with the S.C.T.A. definition of gasoline as noted above may be required. The testing shall be performed by a S.C.T.A. approved laboratory at a cost to the competitor or to the provider of the gasoline. Once tested and approved for use, a non-“EVENT” gasoline will have its critical chemical properties, including the dielectric constant, recorded by the S.C.T.A. technical staff for possible future acceptance as an approved gasoline.
5.D.4 Modified Sports - /BFMS, /FMS, /BGMS, GMS
Streamlining ahead of and including the cowl, channeling, belly pan and skirts is allowed. Front tread width may be narrowed to a minimum of 27 in. Removal of minor trim and bumpers is allowed as long as the body is not altered in length, width or contour. Spoilers as defined in Section 4.CC.6 are allowed. Windshields may be lowered or removed. Coupe tops may be chopped.
5.E.2 Production-Supercharged - /PS
This class is intended for American and foreign coupes and sedans that meet the requirement of the Production Coupe and Sedan Class that are equipped with factory supercharger systems. The vehicle shall be as originally equipped and configured. If the vehicle was originally equipped with one turbo charger, one turbo charger must be used. If the vehicle was originally equipped with a belt driven supercharger, a supercharger of that type must be used. Supercharged sports coupes equipped with rear jump seats, such as Mazda RX7 Turbo and Porsche 930 series, which would be considered a GT class vehicle, shall compete in the Blown GT class.
7.D.4 Frame Engine Max Max No.
Class Classes Displacement of Engines:
P P, PP, PB, PPB, PV 3000 1
M All except UG & UF 3000 1
MPS All except UG & UF 3000 1
A All except UG & UF 3000 & above 2
APS All except UG & UF 3000 & above 2
S All 3001 & above 2
SC All 3001 & above 2
SCS All 3001 & above 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.B.19 Chassis & Steering:
Fork stops must stop fork travel before the hands touch the tank or fairing. If a hydraulic steering damper is used, the rod shaft (or piston) may not be used for the fork stops. In all classes other than Production and Modified Production, fork stops must limit fork travel to 15 deg. right and left (30 deg.
7.G.11 Partial Streamlining:
It must be possible to see all of the rider: completely from either side, except the hands and forearms. As viewed from directly above it must be possible to see all of the rider except the hands, forearms, legs and feet. It is forbidden to use any transparent material to avoid the application of these rules. Fairings or bodywork must have a minimum of three (3) separate mounting points.