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C.PRODUCTION

Table 2. Production Class Modifications

The following modifications are allowed in Production classes with the corresponding penalty points.

Six or more points will advance a vehicle to the appropriate Improved or Modified Class.

Item

Modification

Points

1

Lightened flywheel, pressure plate or clutch disk

1

2

Limited slip differential (whether or not a factory option)

2

3

Increase up to 1.2 millimeter (.0472 in.) in the bore. This is allowed in Production classes for normal engine overhaul

2

4

Maximum of 2 40mm, 2 barrel carburetors with 32mm venturies (914 2.0). Maximum of 2 40mm, 2 barrel with 30mm venturies (914 1.7 and 914 1.8)

2

5

Modified venturi

2

6

Bored-out throttle body (no other modification to intake system)

2

7

Velocity stacks, added or modified

1

8

Increased rim width : Stock rim widths are: 5½" on 356, 912 and 914 (all); 6" on 924 and 911; 7" on 2.5 924S, 2.7 Carrera, 924 Turbo, 944 and 911SC; 8" on 3.2 Carrera, 930 Turbo (1985 and older) and Carrera 2/4;  9" on 911 Turbo (1986 - 1989), 928 (all), 944 Turbo, 944S2, 968, RS America, 986 Boxster; 9.5” on 987 Boxster; 10" on 911 Turbo (1991-1997), 993; 11” on 996, 997, 996 Turbo, 996 GT3; 12” on GT2; 12.5” on Carrera GT

1 per ½" over stock, up to 2" max for widest rim on vehicle

9

Non-stock brake modifications, other than calipers and rotors (which are dealt with in Item 6, Table 3), such as power boosters, master cylinders, brake proportioning valves, and brake pedal modifications

2

10

Disabled alternator or generator

1

11

For 924, 944, 968 series only, aftermarket front control arms

1

RMR/AMR Event Rules – 2008Page 16

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