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The Aerodynamic Optimization of a Successful IMSA GT Race Car
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English
Abstract
This paper describes the methodology used to achieve optimum aerodynamic performance of the 1992 through 1995 Oldsmobile Cutlass Supreme IMSA GT race car and will demonstrate the continuous improvements successfully used to respond to rule changes and competition.
The concerted effort by the sanctioning body to limit the aerodynamic performance of IMSA GT race cars for the 1995 season required a rigorous wind tunnel test program backed by track validation to maintain the necessary aerodynamic balance, cooling flows, engine induction flow, and overall competitive parity. The specific modifications that were evaluated to accommodate these rules changes will be detailed in this paper.
Special test methodologies developed to better understand specific aerodynamics questions such as the effects of vehicle attitude, internal cooling flows, underbody treatments, and engine air inlet performance will also be discussed.
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Citation
Woodbridge, D. and Miller, R., "The Aerodynamic Optimization of a Successful IMSA GT Race Car," SAE Technical Paper 962518, 1996, https://doi.org/10.4271/962518.Also In
References
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- Abbott Ira H. Von Doenhoff Albert E. “Theory of Wing Sections” Dover Publications, Inc. New York 1959
- Sovran Gino Klomp Edward D. “Experimentally Determined Optimum Geometries for Rectilinear Diffusers with Rectangular, Conical or Annular Cross-Section” Elsevier Publishing Co. New York 1967