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Wind Tunnel and Tract Testing an ARCA Race Car
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English
Abstract
A comprehensive race car aero program contains three phases: initial body design, wind tunnel testing, and race track verification. This report compares wind tunnel test results and track data for the Churchill LeBaron race car which is sanctioned by the Automobile Racing Club of America (ARCA). During the wind tunnel phase of testing, several runs were conducted specifically to be repeated during track testing at the Talladega* and Atlanta* tracks. At both tracks the race team first conducted their usual engine and chassis set up runs, then dedicated a series of runs to aero testing. At Talladega, incrementally reducing drag on five consecutive runs produced a lower lap time on each run. At the Atlanta track, reducing lift on six runs produced corresponding reductions in lap time. This report presents the results.
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Authors
Citation
Duncan, L., "Wind Tunnel and Tract Testing an ARCA Race Car," SAE Technical Paper 901867, 1990, https://doi.org/10.4271/901867.Also In
References
- Aerodynamic Flow Visualization Techniques and Procedures SAE Information Report HS J1566 January 1986
- Low Speed Wind Tunnel User Manual Lockheed Corporation January 1989
- Scibor-Rylski, A. J. Road Vehicle Aerodynamics 2 London Pentech Press 1984
- Hucho, Wolf-Heinrich Aerodynamics of Road Vehicles Cambridge University Press 1987