Vehicle: Ford mustang Boss 302 (202) and GT Class: GTS Vehicle Manufacturer: Year and Model: Ford Boss 302 (202) and GT This specifications form was developed by SCCA Pro Racing and will be used by the TECHNCIAL MAGER to establish technical compliance for vehicles competing in the SCCA PRO RACING WORLD CHALLENGE series. The TECHNICAL MAGER can also use, but is not limited to also using the following items to check compliance: Electronic Parts Catalog (EPC), Technical Information System (TIS), and the FIA/ASN Homologation forms (or equivalent documentation). The specifications within this form include all modifications that have been approved by SCCA Pro Racing specifically for the vehicle model(s) and year(s) listed on this page. The parts, specifications and assemblies used shall be those for the unmodified stock vehicle, those permitted within the Pro Racing Regulations (PRR) and/or within this VTS. If the stock parts, specifications and/or assemblies exceed the performance potential of those approved with this form, then the parts, specifications and/or assemblies used shall meet those listed within this form. Refer to SCCA PRR and Appendix A. for rules regarding all vehicle specifications not specifically listed within the VTS. The most current rules can be downloaded from the official website: www.world-challenge.com and look under the Competitors section for the latest Technical Bulletins, Participant Bulletins, and Appendix A. The Vehicle Technical Specification sheet is a permissive document. The exact configuration of any modification allowed within this VTS is subject to the approval of the TECHNCIAL MAGER. 6Date Issued: 2/7 4/2/204 Page: of 6
Vehicle: Ford mustang Boss 302 (202) and GT Class: GTS. General Vehicle Description.A. Body Type: Coupe.B. Engine Location: front.c. Drive Wheels: rear.d. Wheelbase: 07..E. Induction Type: Normally aspirated.f. Competition Weight: See Appendix A.G. Weight Distribution: See Appendix A 2. Engine 2.A.. OEM Engine Designation: 5.0 L 4V 2.A.2. Maximum Displacement: 4.57 2.A.3. Number of Cylinders: 8 2.A.4. Rev Limit: 8200 2.A.5. Rev Limit Method: ECU 2.A.6. Max. Compression Ratio: / 2.A.7. Maximum Piston Stroke: 2.7 mm 2.A.8. Restrictors: 2.A.8.a. Percentage Restriction: 2.A.8.b. Hole Diameter: See appendix A 2.A.. Cylinder Firing Order: 5486372 2.A.0. Direction of Engine Rotation: clockwise 2.B. Cylinder Block 2.B.. Part BR3E-600-HE 2.B.2. Cylinder Block Material: aluminum 2.B.3. Maximum Cylinder Bore: 2.22mm 2.C. Cylinder Head 2.C.. Part 2.C.2. Cylinder Head Material: 2.I. Crankshaft 2.I.. Part 6Date Issued: 2/7 CR3E-604/6050- AD aluminum 2.D. Valve System 2.D.. Number of Valves Per Cylinder: 2.D..a. Intake: 2 2.D..b. Exhaust: 2 2.D.2. Maximum Valve Head Diameter: 2.D.2.a. Intake: 37.3mm 2.D.2.b. Exhaust: 3.3mm 2.E. Intake Port Dimensions 2.E.. At Intake Manifold Face 2.E..a. Height: 40.0mm 2.E..b. Width: 57.25mm 2.E.2. Intake Port Work Allowed: 2.E.2.a. Depth From Face: 2.F. Exhaust Port Dimensions 2.F.. At Exhaust Manifold Face: 2.F..a. Height: 40.5mm 2.F..b. Width 40.5mm 2.F.2. Exhaust Port Work Allowed: 2.F.2.a. Depth From Face: 2.G. Piston and Connecting Rod 2.G.. Connecting Rod Length: 2.G..a. Stock: 50.7mm 2.G..b. Approved: 2.G.2. Reciprocating Assembly Mass: 2.G.2.a. Stock:,34.00 2.G.2.b. Minimum:,0.40 2.G.3. Aftermarket Rods Allowed: 2.G.4. Aftermarket Pistons Allowed: 2.H. Camshaft 2.H.. Part CR3E-6A272-CA RH EX CR3E-6A273-CA LH EX BR3E-6A270-EA RH IN BR3E-6A27-EA LH IN or 2.H.2. SCCA Profile 2.H.3. Rocker Arm Ratio: 2.H.4. Valve Actuation: Roller finger follower 2.H.5. Type of Cam Follower: Roller finger follower CR3E-6303-AB 4/2/204 Page: 2 of 6
Vehicle: Ford mustang Boss 302 (202) and GT Class: GTS 2.I.2. Stock Mass: 22kg 2.I.3. Minimum Mass: 2.J. Flywheel 2.J.. Stock Ring Gear Diameter: 2.K. Forced Induction Intake System 2.K.. Turbocharger Manufacturer and Model: 2.K.2. Supercharger Manufacturer and Model: 2.K.3. Compressor Inlet Diameter: 2.K.4. Number of Compressors: 2.K.5. Maximum Boost Pressure: 2.K.6.a. Number of Intercoolers: 2.K.6.b. Intercooler Locations: 2.K.6.c. Intercooler Dimensions: 2.K.7. Permitted Modifications 2.K.8. Required Boost Sensor Location: 2.K.. Turbo Compressor Map: 2.L. Intake Manifold 2.L.. Part CR3E-424-AD 2.L.2. Stock Port at Cylinder Head Face: 2.L.2.a. Height: 55.88 2.L.2.b. Width: 32.26 2.L.3.a. Allow Port Match to Head: 2.L.3.b. Port Matching Depth: 2.L.4.a. Throttle Body Bore Dia.: 80mm 2.L.4.b. Throttle Body Part 2.L.5. Number of Throttle Bodies: 2.L.6. Butterflies per Throttle Body: 2.L.7. Intake Manifold Material: plastic 2.L.8. Manifold Pieces: 2.L..a. Intermediate Port Matching Allowed: 2.L..b. Depth from Face: 2.M. Required Engine Seal Locations 2.M.. Valve Cover Seal #: 2.M.2. Oil Pan Seal #2: 2.N. Engine Miscellaneous: Air cleaner element, housing and ducting from air cleaner to throttle body is unrestricted, however, no ram air or modification to the body to accommodate changes is allowed. allow the use of Manely rods #438 Allow alternate side exhaust per rule 2.5...2 Must conform to 2.5...3 The exhaust system must be adequately isolated from the driver s compartment. 3. Drivetrain 3.A. Transmission 3.A.. Number of Forward Speeds: 6 3.A.2. Manufacturer: Tremec T-6060 3.A.3. Gear Ratios: 3.A.3.a. st: 2.7 3.A.3.b. 2nd:.78 3.A.3.c. 3rd:.30 3.A.3.d. 4th:.0 3.A.3.e. 5th:.75 3.A.3.f. 6th:.5 3.A.4. Gear Shift Pattern: H 3.A.5. Gear Engagement synchromesh T 6Date Issued: 2/7 4/2/204 Page: 3 of 6
Vehicle: Ford mustang Boss 302 (202) and GT Class: GTS 3.A. Transmission option #2 3.A.. Number of Forward Speeds: 6 3.A.2. Manufacturer: Tremec T-6060 Boss 302S 203 3.A.3. Gear Ratios: 3.A.3.a. st: 2.664 3.A.3.b. 2nd:.88 3.A.3.c. 3rd:.302 3.A.3.d. 4th:.0 3.A.3.e. 5th:.765 3.A.3.f. 6th:.50 3.A.4. Gear Shift Pattern: H 3.A.5. Gear Engagement synchromesh 3.A. Transmission option 3 3.A.. Number of Forward Speeds: 6 3.A.2. Manufacturer: Tremec T-6060 M7003-BossR 3.A.3. Gear Ratios: 3.A.3.a. st: 2.2 3.A.3.b. 2nd:.6 3.A.3.c. 3rd:.2 3.A.3.d. 4th:.0 3.A.3.e. 5th:.82 3.A.3.f. 6th:.68 3.A.4. Gear Shift Pattern: H 3.A.5. Gear Engagement synchromesh 3.B. All Wheel Drive System 3.B.. Transfer Case Manufacturer and Model No.: 3.B.2. Center Differential Type and Manufacturer: 3.C. Final Drive 3.C.. Axle Ratio: 4:30/4.0 3.D. Drivetrain Miscellaneous Factory OEM Carbon driveshaft allowed Aluminum drive shaft allowed Allow use of Ford Racing/Tremec 6060 Transmission M-7003-BOSSR 4. Suspension 4.A. Suspension Type: 4.A.. Front: Coil over 4.A.. Rear: Coil over 4.B. Suspension Miscellaneous These are factory Ford replacement parts for the boss 302. bumpsteer kit M-330-R4 rear anti dive brackets M-5650-A front lower control arm with extended ball joint M-3075-RA rear lower control arm M-564-S Pan hard Bar M-4264 Allow Cortex watts link P/N:CWL-40-302S (Both bracket fully welded to chassis) 5. Chassis 5.A. See Technical Department for information 5.B. Chassis Miscellaneous Increase size of front rotor to 380mm Ford racing brake booster M-2005-R 6. Body 6.A.. Stock Coefficient of Drag: 6.A.2. Total Frontal Area: 6.B. Body Overhang: 2.B.. Front: 2.B.2. Rear: 6Date Issued: 2/7 4/2/204 Page: 4 of 6
Vehicle: Ford mustang Boss 302 (202) and GT Class: GTS 6.C. Stock Body Materials: 6.D. Maximum Body Width: 6.E. Permitted Rear Wing Design: steel CPP-C800-62 6.F. Body Miscellaneous: CPP-C800-62 62" wing with spec mount and zero degrees rake has to be below the roof line TR-662-EF TR-662-EC Fiberglass louvered hood Carbon louvered hood Camshaft Profile SCCA Profile Vehicle: Intake Lobe Cam Lift (in) Duration ( o ) Open Close Area.00 232.2.020 28.0.030 207.8.040.6.050 2.2.060 85.6.070 78.8.080 73.2.00 66.4.00 60.4.50 26.0.200 80.6 Maximum Lift:.234 Exhaust Lobe Cam Lift (in) Duration ( o ) Open Close Area.00 235.8.020 220.6.030 20.4.040 20.6.050 4.4.060 88.4.070 8.4.080 75.0.00 6.4.00 63.2.50 3.6.200 3.2 6Date Issued: 2/7 4/2/204 Page: 5 of 6
Vehicle: Ford mustang Boss 302 (202) and GT Class: GTS Maximum Lift:.253 Permitted Cam Tolerances Camshafts used for this car must meet the specifications above within the following tolerances: Duration at the seat (From 0.020 lift to 0.030 lift) +/- 6.5 degrees Duration on flank (From 0.00 lift to 0.00 before maximum lift) +/- 4.0 degrees Duration over nose (From 0.00 before maximum lift up to maximum lift) +/- 6.0 degrees Maximum Lift (This tolerance applies to maximum lift only) +/- 0.005 in (0.27 mm) 6Date Issued: 2/7 4/2/204 Page: 6 of 6