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1998 SCCA Club Racing Rule Changes -- TCS
SOURCE STATUS SECTION DESCRIPTION
TB 98-04 Eff 4/1/98 C.4.b Correct first sentence to read: A car
shall be eligible for five (5) calendar
years beginning on 1 January of its
model year.
TB 97-04 Eff 4/1/98 D.7.a.3 Add subsection as follows: Cars
equipped with lug bolts may convert to
wheel studs and lug nuts.
BoD 12/97 Eff 2/1/98 D.7.b Change the third sentence of third
paragraph to read: All cars are
allowed a section increase pr decrease
of 10mm or 20mm (e.g., 195 may use 175
185 205 or 215).
TB 98-06 Eff 6/1/98 D.7.b Change the first sentence of the second
paragraph to read: All tires shall be
DOT approved and shall be offered for
sale over the counter through the
manufacturer's tire dealer network.
Bod 12/97 Eff 2/1/98 D.9.d.6 Add section as follows: Removal of
radio and speaker components is
permitted.
TB 98-07 Eff 7/1/98 E.1 Add in the first sentence 'required'
ballast. Sentence to read as follows:
The weight, as listed on an
automobile's specification line, shall
be without the driver and the required
ballast.
BL 12/97
BoD 12/97 Eff 1/1/98 T1 p 21 Classify Acura NSX. Specifications are
contained in the 1998 TCS.
TB 98-06 Eff 6/1/98 T1 p 21 1994-1997 Chevrolet Corvette (C-4).
Add to specifications as follows:
- Wheels: 17" x 11"
- Tire Size: 315/35/17
- Notes: Z-07 performance package
permitted.
BL 12/97
BoD 12/97 Eff 1/1/98 T1 p 21 Classify Chevrolet Corvette (C-5).
Specifications are contained in the
1998 TCS.
TB 98-03 Eff 3/1/98
TB 98-05 Eff 5/1/98 T1 p 21 1998 Chevrolet Corvette C-5. Add 1997
model year.
BL 12/97
BoD 12/97 Eff 1/1/98 T1 p 21 Classify Dodge Viper. Specifications
are contained in the 1998 TCS.
TB 98-02 Eff 2/1/98 T1 p 21 1994-1998 Dodge Viper RT-10. Correct
model years to 1994-1996, 1998.
BL 12/97
BoD 12/97 Eff 1/1/98 T1 p 21 Classify Dodge Viper GT-S.
Specifications are contained in the
1998 TCS.
TB 98-07 Eff 7/1/98 T1 p 21 1997-1998 Dodge Viper GT-S. Add 1996
to the model years.
BL 12/97
BoD 12/97 Eff 1/1/98 T1 p 21 Classify Ford Mustang Cobra R.
Specifications are contained in the
1998 TCS.
TB 98-03 Eff 3/1/98
TB 98-05 Eff 5/1/98 T1 p 21 Ford Mustang Cobra R. Correct
classification as follows: 1995 Ford
Mustang Cobra R. Add to
specifications:
- Bore: 101.6mm
- Stroke: 88.9mm
- Displacement: 5766cc
BL 12/97
BoD 12/97 Eff 1/1/98 T1 p 21 Classify Ferrari 348. Specifications
are contained in the 1998 TCS.
TB 98-07 Eff 7/1/98 T1 p 21 Ferrari 348. Add to Notes: D.O.T.
approved tires are required.
BL 12/97
BoD 12/97 Eff 1/1/98 T1 p 21 Classify Ferrari 355. Specifications
are contained in the 1998 TCS.
TB 98-02 Eff 2/1/98 T1 p 21 1995- Ferrari 355 Berlinetta. Correct
model as follows: 1995-1998 Ferrari 355
Berlinetta. Add to Notes: Cars may be
prepared to the 1998 Ferrari Challenge
specifications.
TB 98-03 Eff 3/1/98 T1 p 21 1995-1998 Ferrari 355 Berlinetta. Add
to Notes: Roll cage shall meet current
T1 Category safety specifications.
TB 98-07 Eff 7/1/98 T1 p 21 1995- Ferrari 355 Berlinetta. Add to
Notes: D.O.T. approved tires are
required.
BL 12/97
BoD 12/97 Eff 1/1/98 T1 p 21 Classify Porsche 993. Specifications
are contained in the 1998 TCS.
TB 98-02 Eff 2/1/98 T1 p 21 Porsche 911/993. Change model years to
1996-1998. Add to specifications as
follows:
- Bore: 100.0mm
- Stoke: 76.4mm
- Valve Head Diameter: (I)
(E)
- Displacement: 3600cc
- Compression Ratio: 11.3
- Wheelbase: 89.4"
- Track: (F) 55.3"
(R) 56.9"
- Wheels: (F) 18" x 8" alloy
(R) 18" x 10" alloy
- Tire Size: (F) 225/40
(R) 265/35
- Gear Ratios: 1 - 3.82
2 - 2.05
3 - 1.41
4 - 1.12
5 - 0.93
6 - 0.78
- Final Drive: 3.44
- Brakes (front): 304mm disc
- Brakes (rear): 299mm disc
- Weight: 3160 lbs.
- Notes:
BL 12/97
BoD 12/97 Eff 1/1/98 T1 p 21 Classify Porsche 996. Specifications
are contained in the 1998 TCS.
TB 98-02 Eff 2/1/98 T1 p 21 Porsche 911/996. Change model year
to 1999. Add to specifications as
follows:
- Bore: 96.0mm
- Stoke: 78.0mm
- Displacement: 3400cc
- Valve Head Diameter: (I)
(E)
- Compression Ratio: 11.3
- Wheelbase: 92.6"
- Track: (F) 57.3"
(R) 59.1"
- Wheels: (F) 18" x 7" alloy
(R) 18" x 10" alloy
- Tire Size: (F) 225/40
(R) 265/35
- Gear Ratios: 1 - 3.82
2 - 2.20
3 - 1.52
4 - 1.22
5 - 1.02
6 - 0.84
- Final Drive: 3.44
- Brakes (front): 318mm disc
- Brakes (rear): 299mm disc
- Weight:
- Notes:
TB 98-05 Eff 5/1/98 T1 Classify 1995- BMW M3 Lightweight.
Weight: 2850 lbs.
TB 98-05 Eff 5/1/98 T1 Classify 1997-1998 Chevrolet Camaro SS.
- Wheels: 17" x 9"
- Weight: 3200 lbs
TB 98-06 Eff 6/1/98 T1 Classify Ford Mustang Steeda 351 Q.
- Bore: 101.60mm
- Stoke: 88.90mm
- Displacement: 5766cc
- Valve Head Diameter: (I) 49.3mm
(E) 39.1mm
- Compression Ratio: 10.6
- Wheelbase: 101.3"
- Track: (F) 60.6"
(R) 59.1"
- Wheels: (F) 17" x 9"
(R) 17" x 10"
- Tire Size: (F) 275/40/17
(R) 315/40/17
- Gear Ratios: 1 - 3.27
2 - 1.98
3 - 1.34
4 - 1.00
5 - 0.83
- Final Drive: 3.27
- Brakes (front): 13.0" Disc
- Brakes (rear): 11.7" Disc
- Weight: 3550 lbs
- Notes:
TB 98-07 Eff 7/1/98 T1 Ford Mustang Steeda 351 Q. Correct
specifications as follows: Weight: 3350
lbs.
TB 98-05 Eff 5/1/98 T1 Classify 1997-1998 Pontiac Firebird
WS-6.
- Wheels: 17" x 9"
- Weight: 3200 lbs
TB 98-03 Eff 3/1/98 T2 p 22 1995-1996 BMW M3. Add 1997 and 1998
model years.
TB 98-04 Eff 4/1/98 T2 p 22 1995-1998 BMW M3. Delete ballast
requirement on 3.2L cars.
TB 98-05 Eff 5/1/98 T2 p 22 1995-1998 BMW M3. Correct
specifications as follows:
- Wheels: 17" x 8" (F&R) 1995
17" x 8" (F) 1996-
17" x 8.5" (R) 1996-
TB 98-03 Eff 6/1/98 T2 p 22 1995-1998 BMW M3. Correct
specifications as follows:
- Wheels: 17" x 7.5" (F&R) 1995
17" x 7.5" (F) 1996-
17" x 8.5" (R) 1996-
- Wheels (Alt): 17" x 8" (F&R) all
years
TB 98-03 Eff 3/1/98 T2 p 22 1993 BMW Z3 2.8L. Add 1998 model year.
TB 98-01 Eff 1/1/98 T2 p 22 1994-1997 Chevrolet Camaro. Reduce
ballast to 50 labs.
TB 98-06 Eff 6/1/98 T2 p 22 1994-1997 Chevrolet Camaro. Add to
Notes: 1998 power steering cooler
permitted.
TB 98-04 Eff 4/1/98 T2 p 22 1994-1995 Ford Mustang Cobra. Add to
Notes: Strut brace, Steeda/SVO P/N
002-3094.
TB 98-03 Eff 3/1/98 T2 p 22 1996-1997 Ford Mustang Cobra DOHC. Add
1998 model year.
TB 98-06 Eff 6/1/98 T2 p 23 1994-1996 Nissan 300ZX. Change Weight
to 3100 lbs. Add to Notes: Alternate
springs: Nissan P/N 99996-52068 (Eibach
manufactured), Alternate (F&R) swaybar
kit: Suspension Techniques P/N 52120
(1.125" front, .8125" rear).
TB 98-01 Eff 1/1/98 T2 p 23 1994-1997 Pontiac Firebird Formula and
Trans-Am. Reduce ballast to 50 labs.
TB 98-06 Eff 6/1/98 T2 p 23 1994-1997 Pontiac Firebird Formula and
Trans-Am. Add to Notes: 1998 power
steering cooler permitted.
TB 98-04 Eff 4/1/98 T2 p 23 1994-1996 Toyota Supra. Add 1997 model
year.
TB 98-04 Eff 4/1/98 T2 Classify 1997-1998 Acura Integra Type R
- Bore: 81.0mm
- Stoke: 87.2mm
- Displacement: 1797cc
- Valve Head Diameter: (I)
(E)
- Compression Ratio: 10.6
- Wheelbase: 101.2"
- Track: (F) 58.3"
(R) 58.1"
- Wheels: 15" x 6" alloy
- Tire Size: 195/55
- Gear Ratios: 1 - 3.23
2 - 2.10
3 - 1.46
4 - 1.11
5 - 0.85
- Final Drive: 4.40
- Brakes (front): 282mm vented disc
- Brakes (rear): 260mm disc
- Weight: 2600 lbs
- Notes: Honda Motorsports performance
package permitted.
TB 98-05 Eff 5/1/98 T2 1997-1998 Acura Integra Type R. Add to
Notes: Honda Motorsports performance
package (P/N 17D51-S02-C1) permitted.
TB 98-03 Eff 3/1/98 T2 Classify 1998 Chevrolet Camaro Z-28.
- Weight: 3300 lbs
- Notes: Ballast: 150 lbs, Ballast may
be mounted in either front or rear
passenger footwell. Throttle
restrictor between throttle body and
plenums mandatory: 0.060" flat steel
plate with two 1.300" holes.
TB 98-06 Eff 6/1/98 T2 1998 Chevrolet Camaro Z-28. Correct
Notes as follows: Throttle restrictor
between throttle body and plenums
mandatory: 0.060" flat steel plate with
one 1.850" hole.
TB 98-04 Eff 41x/98 T2 Classify 1997-1998 Honda Prelude
- Bore: 98.0mm
- Stoke: 90.7mm
- Displacement: 2157cc
- Valve Head Diameter: (I) 35.0mm
(E) 30.0mm
- Compression Ratio: 10.0
- Wheelbase: 101.8"
- Track: (F) 60.0"
(R) 59.6"
- Wheels: 16" x 8" alloy
- Tire Size: 205/50/16
- Gear Ratios: 1 - 3.31
2 - 1.95
3 - 1.31
4 - 1.07
5 - 0.87
- Final Drive: 4.27
- Brakes (front):
- Brakes (rear):
- Weight: 2820 lbs
- Notes: Honda Motorsports performance
package permitted.
TB 98-05 Eff 5/1/98 T2 1997-1998 Honda Prelude VTEC. Add to
Notes: Honda Motorsports performance
package (P/N 17D51-S02-C1) permitted.
TB 98-03 Eff 3/1/98 T2 Classify 1998 Pontiac Firebird Formula
and Trans-Am.
- Weight (Formula): 3300 lbs
(Trans-Am): 3400 lbs
- Notes: Ballast: 150 lbs, Ballast may
be mounted in either front or rear
passenger footwell. Throttle
restrictor between throttle body and
plenums mandatory: 0.060" flat steel
plate with two 1.300" holes.
TB 98-06 Eff 6/1/98 T2 1998 Pontiac Firebird Formula and
Trans-Am. Correct Notes as follows:
Throttle restrictor between throttle
body and plenums mandatory: 0.060" flat
steel plate with one 1.850" holes.
TB 98-04 Eff 4/1/98 T2 Classify 1998 Toyota Supra
- Bore: 86.0mm
- Stoke: 86.0mm
- Displacement: 2997cc
- Valve Head Diameter: (I) 33.5mm
(E) 29.0mm
- Compression Ratio: 10.0
- Wheelbase: 100.4"
- Track: (F)
(R)
- Wheels: 3100 lbs
- Tire Size:
- Gear Ratios: 1 -
2 -
3 -
4 -
5 -
- Final Drive:
- Brakes (front):
- Brakes (rear):
- Weight:
- Notes: TRD 94-97 5-speed transmission
kit is required.