Vehicle Manufacturer: Dodge Year and Model: (200-2007) Viper Competition Coupe Hybrid 8.L This specifications form was developed by SCCA Pro Racing and will be used by the TECHNCIAL MANAGER to establish technical compliance for vehicles competing in the SCCA PRO RACING WORLD CHALLENGE series. The TECHNICAL MANAGER 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). Commented [MB1]: Eliminating Hybrid Name. Will now distinguish between the older 8.L VCC and newer 8.4L package by displacement. There will only be 1 package now for this 8.L (Hybrid). I don t see any reason to keep old engine parts as you won t be competitive without the hybrid upgrades anyway. 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 sheet is a permissive document. The exact configuration of any modification allowed within this VTS is subject to the approval of the TECHNCIAL MANAGER. 1. General Vehicle Description 1.A. Body Type: Coupe 1.B. Engine Location: Front 1.C. Drive Wheels: Rear 1.D. Wheelbase: 2515 mm 1.E. Induction Type: Naturally Aspirated 1.F. Competition Weight: See Appendix A 1.G. Weight Distribution: 2. Engine 2.A.1. OEM Engine Designation: Viper VGX V10 2.A.2. Maximum Displacement: 8284 cc (505 cu in) 2.A.. Number of Cylinders: 10 2.A.4. Rev Limit: See Appendix A 2.A.5. Rev Limit Method: ECU / Spark 2.A.6. Max. Compression Ratio: 10.:1 2.A.7. Maximum Piston Stroke: 100.6 mm 2.A.8. Restrictors: 2.A.8.a. Percentage Restriction: 20, 25, 0, 5, 40, 2.A.8.b. Hole Diameter: 58.5, 56.6, 54.7, 52.7, 45 % 2.A.9. Cylinder Firing Order: 1.10.9.4..6.5.8.7.2 2.A.10. Direction of Engine Rotation: 2.B. Cylinder Block 2.B.1. Part Number: 050701XX (0-04); 50.7, 48.49 mm Clockwise Page: 1 of 7 Commented [MB2]: No reason to keep old numbers no-one will run them.
0507468XX (05-07) 2.B.2. Cylinder Block Material: Cast Aluminum 2.B.. Maximum Cylinder Bore: 102.5mm 2.C. Cylinder Head 2.C.1. Part Number: 05077110507-714AB 2.C.2. Cylinder Head Material: Cast Aluminum 2.D. Valve System 2.D.1. Number of Valves Per Cylinder: 2.D.1.a. Intake: 1 2.D.1.b. Exhaust: 1 2.D.2. Maximum Valve Head Diameter: 2.D.2.a. Intake: 52.98mm 2.D.2.b. Exhaust: 41.00.9mm 2.E. Intake Port Dimensions 2.E.1. At Intake Manifold Face 2.E.1.a. Height: 59.16mm 2.E.1.b. Width: 5.2mm 2.E.2. Intake Port Work Allowed: no 2.E.2.a. Depth From Face: 2.F. Exhaust Port Dimensions 2.F.1. At Exhaust Manifold Face: 2.F.1.a. Height: 8.72 mm 2.F.1.b. Width 4.95mm 2.F.2. Exhaust Port Work Allowed: no 2.F.2.a. Depth From Face: 2.G. Piston and Connecting Rod 2.G.1. Connecting Rod Length: 2.G.1.a. Stock: 158.55 mm 2.G.1.b. Approved: 158.45-158.65mm 2.G.2. Reciprocating Assembly Mass: 2.G.2.a. Stock: 1262 g 2.G.2.b. Minimum: 1210 g 2.G.. Aftermarket Rods Allowed: Yes 2.G.4. Aftermarket Pistons Allowed: Yes 2.H. Camshaft 2.H.1. Part Number: 0476708AD or 2.H.2. SCCA Profile Number: ViperCC.1A 0507057XX casting # 2.H.. Rocker Arm Ratio: 1.7:1 2.H.4. Valve Actuation: Pushrod 2.H.5. Type of Cam Follower: Hydraulic Roller 2.I. Crankshaft 2.I.1. Part Number: 050AC 2.I.2. Stock Mass: 8.5 kg with sprocket 2.I.. Minimum Mass: 8.5 kg with sprocket 2.J. Flywheel 2.J.1. Stock Ring Gear Diameter: 65 mm 2.J.2. Flywheel Weight: 2.K. Forced Induction Intake System 2.K.1. Turbocharger Manufacturer and Model: 2.K.2. Supercharger Manufacturer and Model: 2.K.. Compressor Inlet Diameter: 2.K.5. Compressor Pinwheel Inlet OD: 2.K.7. Maximum Boost Pressure: 2.K.8.a. Number of Intercoolers: 2.K.8.c. Intercooler Dimensions: 2.K.9. Permitted Modifications 2.K.10. Required MAP Sensor Location: 2.K.11. Turbo Compressor Map: 2.L. Intake Manifold 2.L.1. Part Number: ARR-0125-000 2.K.4. Number of Compressors: 2.K.6. Turbine Pinwheel Inlet OD: 2.K.8.b. Intercooler Locations: Page: 2 of 7 Commented [MB]: These are the new head numbers for the Hybrid parts. These were covered under the Mopar Kit Number in comments section. Since this is the only engine package, these are now the only heads allowed. Commented [MB4]: Updated for accurate dimensions
2.L.2. Stock Port at Cylinder Head Face: 2.L.2.a. 59.1664.1mm 2.L.2.b. Width: 5.240.26 2.L..a. Allow Port Match to Head: Yes 2.L..b. Port Matching Depth: 25.4 mm 2.L.4.a. Throttle Body Bore Dia.: 65.4 mm 2.L.4.b. Throttle Body Part Number: 0507112XX 2.L.5. Number of Throttle Bodies: 1 2.L.6. Butterflies per Throttle Body: 2 2.L.7. Intake Manifold Material: Aluminum 2.L.8. Manifold Pieces: 1 2.L.9.a. Intermediate Port Matching Allowed: No 2.L.9.b. Depth from Face: 2.M. Required Engine Seal Locations 2.M.1. Valve Cover Seal #1: 2.M.2. Oil Pan Seal #2: 2.N. Engine Miscellaneous: No-lift shift electronic driver aid is permitted. All engines must be electronically sealed by a designated Pro Racing official. Contact the TECHNICAL MANAGER for details. Arrow racing engines rod ARR LUN41 and Piston 0504506XX may be installed. The total weight of the reciprocating assembly must be equal to, or greater than, the minimum weight listed on the VTS sheet. Cars using an aftermarket ECU/data system to improve their traction/launch control shall add 20 lbs. to the Appendix A base weight. Cars must use using the OE Dodge Motorsports ECU will have a sealed one provided to them at the beginning of the weekend by Dodge Motorsports engineers. MOPAR part # P515617 allowed which includes cylinder heads, intake manifold, head gaskets, rocker covers, fuel rail with injectors, rocker arms and bolts, exhaust bolts, coil packs, coil covers. head studs. This engine configuration will have a different restrictor assigned to it. see Appendix A? The generation 4 block will be allowed. Casting number 050772XX Maximum Cylinder Bore 10.00 Stock, one rebuild would be 10.125mm. max. Drivetrain.A. Transmission Option 1.A.1. Number of Forward Speeds: 6.A.2. Manufacturer: Tremec.A.. Gear Ratios:.A..a. 1st: 2.66.A..b. 2nd: 1.78.A..c. rd: 1.0.A..d. 4th: 1.00.A..e. 5th: 0.85.A..f. 6th: 0.75.A.4. Gear Shift Pattern: H Pattern.A.5. Gear Engagement Dog-Ring or Synchromesh.A.6. Gear Type Helical.B. Transmission Option 2.B.1. Number of Forward Speeds: 6.B.2. Manufacturer: Tremec TR6060.B.. Gear Ratios:.B..a. 1st: 2.664.B..b. 2nd: 1.818.B..c. rd: 1.02.B..d. 4th: 1.000.B..e. 5th: 0.741.B..f. 6th: 0.50.B.4. Gear Shift Pattern: H Pattern.B.5. Gear Engagement Syncromesh.C. Transmission Option.C.1. Number of Forward Speeds: 6.C.2. Manufacturer: Hollinger RD6S.C.. Gear Ratios:.C..a. 1st: 2.296.C..b. 2nd: 1.59.C..c. rd: 1.2.C..d. 4th: 1.000.C..e. 5th: 0.84.C..f. 6th: 0.745.C.4. Gear Shift Pattern: Sequential.C.5. Gear Engagement Dog-Ring Page: of 7 Commented [MB5]: I don t understand why this was wrong (unless I am not understanding the line item). The port on intake side should match the port on the cylinder head side. I corrected. Commented [MB6]: I don t see any reason for this stuff anymore. I think the only restriction with this 8.L engine is that it must be run with stock ECU. This will prevent paddle shift and electronic throttles from coming in without an update and BoP adjustment. The Gen 4 block will not be allowed under this VTS as it would result in an 8.4L displacement. Commented [MB7]: I think the only trans option people run......
.D. Transmission Option 4.D.1. Number of Forward Speeds: 6.D.2. Manufacturer: EMCO DV46.D.. Gear Ratios:.D..a. 1st: 2.76.D..b. 2nd: 1.84.D..c. rd: 1..D..d. 4th: 1.00.D..e. 5th: 0.85.D..f. 6th: 0.78.D.4. Gear Shift Pattern: Sequential.D.5. Gear Engagement Dog-Ring.E. Transmission Option 5.E.1. Number of Forward Speeds: 6.E.2. Manufacturer: Quaife QBE69G.E.. Gear Ratios:.E..a. 1st: 2.40.E..b. 2nd: 1.58.E..c. rd: 1.18.E..d. 4th: 0.905.E..e. 5th: 0.7692.E..f. 6th: 0.6897.E.4. Gear Shift Pattern: Sequential.E.5. Gear Engagement Dog-Ring.E.6. Input Pair Ratio: 1.105.F. Final Drive.F.1. Axle Ratio:.07,.1, or./.6.d. Drivetrain Miscellaneous As of July 15, 2007, the.1 final drive may be replaced with the.6 final drive when a replacement is needed. When a team changes to the.6 final, the.1 final may not be used again. The OE 5th gear ratio (0.74) and 6th gear ratio (0.50) may be used in lieu of the specified ratios for Transmission Option 1. The reverse synchronizer, key and springs may be removed. Reverse gear must remain operable 4. Suspension 4.A. Suspension Type: 4.A.1. Front: Double A-Arm 4.A.1. Rear: Double A-Arm 4.B. Suspension Miscellaneous. Anti-roll bar material and dimensions may be changed, but the pick-up points shall be used as supplied by Dodge Motorsports. Alternate shock suppliers may be used provided the mounting points are used as supplied. All other suspension components shall be used as supplied by Dodge Motorsports. Cars that had their suspension pick-up points modified prior to 01/01/2008 will have these modifications grandfathered; passport #29 and 401. 5. Chassis 5.A. See Technical Department for information 5.B. Chassis Miscellaneous Fuel Cell must be in the stock location as supplied by Dodge Motorsports. Cars that relocated their fuel cell prior to 01/01/2008 will have this modification grandfathered; passport #29 and 401. Cars not using ABS may remove 50 lbs from Appendix A base weight. Teams not using ABS shall either have their ABS controller removed, or shall have the ABS controller plug sealed by an official. Commented [MB8]: Not applicable anymore due to only 1 trans. Formatted: Don't adjust space between Latin and Asian text, Don't adjust space between Asian text and numbers Commented [MB9]: This doesn t apply anymore. It was written due to one team that violated rules many years ago. Formatted: Don't adjust space between Latin and Asian text, Don't adjust space between Asian text and numbers Commented [MB10]: Also not applicable anymore. It was one car that violated rules way back in the day. 6. Body Page: 4 of 7
6.A.1. Stock Coefficient of Drag: 0.562 6.A.2. Total Frontal Area: 2.4 m 2 6.B. Maximum Body Overhang: 2.B.1. Front: 1060 mm 2.B.2. Rear: 1195 mm 6.C. Stock Body Materials: Non-Metallic Composite (Carbon Fiber) 6.D. Maximum Body Width at Front 1979 mm Wheelhouse: 6.E. Maximum Body Width at Rear Wheelhouse: 6.F. Permitted Rear Wing Design: 0502957AA (200-2004); 050041AA (2005+) 6.F. Body Miscellaneous: Rear diffuser must have all strakes removed, except the outside panels, on vehicles with the 2005 body. Remaining outside strakes must have 1.0mm trimmed from the bottom edge the entire length of the strake. 2005 body updates must be done as a complete package (hood, fascia, splitter, wing). 50mm splitter must be used on vehicles with 2005 body. Vehicles equipped with 200-2004 body may run 80mm front splitter. Commented [MB11]: No one will run the old pre-2005 body as it wouldn t be competitive. Just have one body and wing spec. Page: 5 of 7
Camshaft Profile SCCA Profile Number: Vehicle: Intake Lobe Cam Lift (in) 0.010 in 265.90 0.020 250.94 0.00 240.05 0.040 21.0 0.050 22.12 0.060 215.86 0.070 209.09 0.080 202.77 0.090 196.67 0.100 190.77 0.150 161.91 0.200 1.18 0.250 101.08 0.00 55.96 0.50 0.400 0.450 0.500 Maximum Lift:.21 Exhaust Lobe Cam Lift (in) 0.010 in 279.77 0.020 264.6 0.00 25.09 0.040 24.87 0.050 25.67 0.060 228.2 0.070 221.25 0.080 214.66 0.090 208.0 0.100 202.06 0.150 172.15 0.200 141.62 0.250 107.66 0.00 59.67 0.50 0.400 0.450 0.500 Maximum Lift:.21 Permitted Cam Tolerances Page: 6 of 7
Camshafts used for this car must meet the specifications above within the following tolerances: Duration at the seat (From 0.020 lift to 0.00 lift) +/- 6.5 degrees Duration on flank (From 0.100 lift to 0.100 before maximum lift) +/- 4.0 degrees Duration over nose (From 0.100 before maximum lift up to maximum lift) +/- 6.0 degrees Maximum Lift (This tolerance applies to maximum lift only) +/- 0.005 in (0.127 mm) Page: 7 of 7