IMSA TECHNICAL BULLETIN IWSC #18-06

Transcription

1 IMSA TECHNICAL BULLETIN IWSC #18-06 To: From: All IMSA WeatherTech SportsCar Championship Competitors IMSA Competition Date: 29 December 2017 Re: IWSC Roar Before the 24 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 (kg) Make Volume Turbo/NA Restrictor Configuration adj current qty. adj current current λ adj current adj current Acura ARX Acura 3.5 Turbo See Table See Table E Cadillac DPi-V.R Cadillac 5.5 NA See Table E Dallara P Gibson 4.2 NA E Mazda RT24-P Mazda 2.0 Turbo See Table See Table E Multimatic Riley Riley MK Gibson 4.2 NA See Table E Nissan DPi Nissan 3.8 Turbo See Table See Table E Onroak Ligier JS P Gibson 4.2 NA See Table E ORECA Gibson 4.2 NA See Table E * Aero configuration is defined via the Aero Configuration table on the following page. Acura ARX-05 Mazda RT24-P Nissan DPi Engine Engine Engine Speed Speed Speed Page 2

3 P PROTOTYPE AERODYNAMIC CONFIGURATIONS IWSC Daytona ROAR Dive Planes Packers / Inserts Other Option Tail Wicker Rear Wing Assembly Rear Wing Flap Rear Wing Flap Wicker Permitted Options FRONT AERODYNAMIC CONFIGURATIONS Optional Front Aerodynamic Configurations are Independent Permitted Configurations Permitted Options : : : Acura ARX-05 Double Acura Side Wicker Angle / Position Span Position Angle mm mm degrees degrees mm mm Acura REAR AERODYNAMIC CONFIGURATIONS Optional Rear Aerodynamic Configurations Must be Used as a Complete Package; Mixing of Parts/Components is Forbidden -1.4 N/A 30.1 : : : Splitter Outboard Must run high Cadillac DPi-V.R LDF Fill-in Packers downforce Side Wicker Option Only at Double Low Downforce all times Front Fender Insert : : : Mazda RT24-P Trimmed Lower Double Splitter Inboard All Side Wicker / Fill-in Packers Bootscraper Options Lower Front Fender Packer Splitter Outboard Shoes / Footplates Position 2 STD LDF 12.4 Multimatic Riley Riley MK30 OPTION Position 1 N/A N/A Full As WEC Homologated on Riley : : : Nissan DPi MDF All Side Wicker HDF Options (A3/MP1) F1/LIM N/A N/A Onroak Ligier JS P217 OPTION (A3/MP1) 8.3 (B2/MP3) F4/0 N/A N/A ORECA N/A 30.1 Full 10.0 Page 3

4 GTLM Vehicles Mass Engine Rear Wing Fuel Notes No Fuel/Driver (kg) Restrictor Min Angle (deg) Gurney adj current qty. adj. current current λ adj current adj current BMW M8 GTE See Table E Aero specification pending FIA approval Corvette C7R GTE E Ferrari 488 GTE See Table E Aero specification pending FIA approval Ford GT GTE See Table E Porsche 911 RSR GTE E BMW M8 GTE Ferrari 488 GTE Ford GT GTE Engine Engine Engine Speed Speed Speed Page 4

5 GTD Vehicles Mass Engine Ride Fuel Notes No Fuel/Driver (kg) Restrictor Maximum RPM Ground Clearance adj current qty. adj current adj current adj current λ adj current adj current Acura NSX GT See Table IMSA 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 Lexus 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 Engine Engine Speed Speed Speed