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Modified  classes are reserved for vehicles maintaining engine and body makes of the same corporate manufacturers while being allowed generous suspension and chassis modifications.

Modified Production (MP)/Blown Modified (BM)

Modified Production  is reserved for vehicles which are or resemble those historically found in competition in the traditional Super Stock Eliminator classes of the various Hot Rod Associations.
Nitrous oxide, superchargers, and/or turbochargers are prohibited in
MP.

Blown Modified  is reserved for vehicles which are or resemble those historically found in competition in the traditional Super Stock Eliminator classes of the various Hot Rod Associations
having forced induction intake systems.
Nitrous oxide, superchargers, and/or turbochargers are permitted in
BM.

Note: While these classes have originally been created for the traditional Super Stock Eliminator vehicles currently competing in other organizations, the engine rules are far more relaxed. Maintaining "As Produced" specifications such as carburetor make and size, engine family and cubic inch, etc. are not of concern in this class.  The primary intent of these classes is to provide class for those vehicles so meticulously built and maintained as to appear nearly completely stock or street worthy while not having gutted interiors and missing or altered (outside of class requirements) body and/or underbody parts.

Class Designations and Indexes

MP/ZZ-Z9

6.00-6.90

BM/ZZ-Z9

6.00-6.90

MP/XX-X9

7.00-7.90

BM/XX-X9

7.00-7.90

MP/AA-A9

8.00-8.90

BM/AA-A9

8.00-8.90

MP/BB-B9

9.00-9.90

BM/BB-B9

9.00-9.90

MP/CC-C9

10.00-10.90

BM/CC-C9

10.00-10.90

MP/DD-D9 11.00-11.90 BM/DD-D9 11.00-11.90
MP/EE-E9 12.00-12.90 BM/EE-E9 12.00-12.90
MP/FF-F9 13.00-13.90 BM/FF-F9 13.00-13.90

MP/GG-G9

14.00-14.90

BM/GG-G9

14.00-14.90

Body:

Modified Production and Blown Modified vehicles must retain stock full body exterior appearance.

Extreme modifications which may drastically alter the appearance such as altered wheelbase, chopping, drooping, rescaling, etc. are not permitted.

All body components such as roof, hood, doors, fenders, bumpers, etc. must remain in place.

Hood scoops permitted so long as they do not exceed a height of 8" above the plane of the hood.

Stock appearing fiberglass and/or aluminum body components permitted.

Doors must be fully functional with operational door windows.

Wheel-well openings may be "stretched" or lengthened to accommodate taller tires so long as the stock body lines are fully maintained. Wheel-well openings may not be radiused, flared, or bubbled.

Chassis:

Chassis must remain relatively stock for the body being used.

Narrowed sub-frames or frame portions and sub-frame connecting permitted.

Suspension:

Non-driving axle suspension systems must remain stock for the body being used.

Example: Straight axles or struts may not replace control arm suspensions, etc.

Air bags may not be used to replace coil springs, leaf springs, or torsion bars.

Engine:

Engine must be of the same corporate manufacturer as that of the vehicle.

GMC, Chevrolet, Buick, Oldsmobile, Pontiac, and Cadillac bodied vehicles are permitted to interchange engines within those same listed manufacturers.

Jeep bodied vehicles are permitted to use engines produced by Ford, American Motors, and Chrysler Corporation.

Interior:

Must retain full stock appearing interior.

Rear passenger seats may be removed in favor of roll bar/roll cage installations. Upholstery or carpeting must continue the full interior appearance where the rear seat void is created.

Tires:

Maximum measured tread width permitted is 14.5 inches.

Tire tread is not allowed to protrude outward past the outermost portion of the wheel-well opening

Electronics:

Delay boxes are permitted with an incorporated weight handicap.

 

 

DRAGCAR
P.O. Box 14976
Phoenix, Arizona 85063
Info@USDRAGCAR.com

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