IMSA TECHNICAL BULLETIN IWSC #17-22

Transcription

1 IMSA TECHNICAL BULLETIN IWSC #17-22 To: From: All IMSA WeatherTech SportsCar Championship Competitors IMSA Competition Date: 30 March 2017 Re: IWSC Long Beach: P, GTLM, and GTD Balance of Performance Tables In accordance with Attachment 2 of the IMSA WeatherTech SportsCar Championship SSR, the following adjustments are made to the indicated cars. The column listed as current is the current specification after the adjustment is applied and thus the required specification for the event. These decisions come into immediate effect and are applicable until further notice. IMSA has determined the values listed in all tables based upon submitted data and IMSA s data analysis. Page 1

2 P Vehicles Mass Engine Aero Fuel Notes No Fuel/Driver Volume Restrictor Boost Minimum Tank Capacity Refueling Restrictor Make Turbo/NA Configuration Ty pe (kg) Ratio adj current qty. adj current current adj current adj current Event: IWSC Long Beach Cadillac DPi-V.R Cadillac 6.2 NA E Gear ratios as specified by IMSA Dallara P Gibson 4.2 NA E Mazda RT24-P Mazda 2.0 Turbo See Table E Multimatic Riley Riley MK Gibson 4.2 NA E Nissan DPi Nissan 3.8 Turbo See Table E Onroak Ligier JS P Gibson 4.2 NA E ORECA Gibson 4.2 NA E * aero configuration is defined via the Aero Configuration table on the following page. Mazda RT24-P Nissan DPi Engine Boost Engine Boost Speed Ratio Speed Ratio [rpm] [rpm] Page 2

3 P PROTOTYPE AERODYNAMIC CONFIGURATIONS Cadillac DPi-V.R Mazda RT24-P FRONT AERODYNAMIC CONFIGURATIONS REAR AERODYNAMIC CONFIGURATIONS Optional Front Aerody namic Configurations are Independent Optional Rear Aerody namic Configurations Must be Used as a Complete Package; Mix ing of Parts/Components is Forbidden Div e Planes Packers / Inserts Other Option Body Gurney Rear Wing Assembly Rear Wing Flap Rear Wing Flap Gurney Permitted Options Permitted Permitted Options Ty pe Type Position Ty pe Position Span Configurations Height Angle Angle Height mm mm degrees degrees mm mm : : : Splitter Outboard Trimmed Low er Fill-in Packers All Side Gurney Options Double Low Downforce OPTION 1 Front Fender Insert : : : Splitter Inboard All Side Gurney / Short Chord Trimmed Low er Fill-in Packers Bootscraper Options OPTION H4 2.0 As-tested H Double Low er Front Splitter Outboard Fender Packer Shoes / Footplates Multimatic Riley Riley MK30 : : : Nissan DPi Double Low Downforce Splitter Packer/Trim All Side Gurney Options OPTION 1 MP Fixing F2/LIM None [B1/MP3] Onroak Ligier JS P217 ORECA 07 : Configuration as-represented by current draft Homologation submitted to IMSA : Configuration as-presented at December 2016 Prototy pe w ind tunnel ev aluation Page 3

4 GTLM Vehicles Mass Engine Rear Wing Fuel Notes Gurney Declared Boost Min Angle Minimum Tank Capacity Refueling Restrictor No Fuel/Driv er (kg) Restrictor Type Minimum Ratio (deg) Height adj current qty. adj. current current adj current adj current Ev ent: IWSC Long Beach BMW M6 GTLM See Table N/A 15.0 E Fuel Rig Height 2.2 m Corv ette C7R GTE N/A 10.0 E Ferrari 488 GTE See Table N/A 10.0 E Ford GT GTE See Table N/A 15.0 E Porsche 911 RSR GTE N/A 10.0 E BMW M6 GTLM Ferrari 488 GTE Ford GT GTE Engine Boost Engine Boost Engine Boost Speed Ratio Speed Ratio Speed Ratio [rpm] [rpm] [rpm] Page 4

5 GTD Vehicles Mass Engine Ride Height Fuel Declared Boost Minimum Ground Tank Capacity No Fuel/Driv er (kg) Restrictor RPM Type Minimum Ratio Clearance Refueling Restrictor adj current qty. adj current adj current adj current adj current adj current Ev ent: IWSC Long Beach Acura NSX GT See Table IMSA Notes Aston Martin V12 Vantage GT IMSA Audi R8 LMS GT IMSA BMW M6 GT See Table IMSA Ferrari 488 GT See Table IMSA Lamborghini Huracan GT IMSA Lex us RC F GT IMSA Mercedes AMG GT IMSA Porsche 911 GT3 R IMSA Page 5 Acura NSX GT3 BMW M6 GT3 Ferrari 488 GT3 Engine Boost Engine Boost Engine Boost Speed Ratio Speed Ratio Speed Ratio [rpm] [rpm] [rpm]