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Open Track Racing
Aerodynamics for high speeds
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<blockquote data-quote="iismet" data-source="post: 15450901" data-attributes="member: 15250"><p>As already stated, a wing will add drag. If you need balance, you could try a terminator rear spoiler. If it worked, I would remove it and start messing with gurneys attached to the rear lid trying to find the smallest that would provide stability. Vortex generators at back of roof may be of benefit to shape air moving to gurney.</p><p></p><p>The bottom of an SN 95 is really dirty. Dirty air causes drag and lift. Lower the car, build a front air dam, add a splitter, sheet the bottom, build a bottom diffuser, add sill splitters. Make sure there is a little slope from back to front with nose lower. Search for pictures of bottoms of modern production sport cars , Ferrari, Audi, Aston, Porsche, C7. </p><p></p><p>Try to get control of the air top and bottom with emphasis on reducing drag. Limit intake air to only what is needed to cool. Block any ports not being used.</p><p></p><p>The 3rd revision of Simon McBeaths book is really good. </p><p></p><p><a href="https://www.amazon.com/Competition-Car-Aerodynamics-New-3rd/dp/1845847768" target="_blank">https://www.amazon.com/Competition-Car-Aerodynamics-New-3rd/dp/1845847768</a></p><p></p><p>chr</p></blockquote><p></p>
[QUOTE="iismet, post: 15450901, member: 15250"] As already stated, a wing will add drag. If you need balance, you could try a terminator rear spoiler. If it worked, I would remove it and start messing with gurneys attached to the rear lid trying to find the smallest that would provide stability. Vortex generators at back of roof may be of benefit to shape air moving to gurney. The bottom of an SN 95 is really dirty. Dirty air causes drag and lift. Lower the car, build a front air dam, add a splitter, sheet the bottom, build a bottom diffuser, add sill splitters. Make sure there is a little slope from back to front with nose lower. Search for pictures of bottoms of modern production sport cars , Ferrari, Audi, Aston, Porsche, C7. Try to get control of the air top and bottom with emphasis on reducing drag. Limit intake air to only what is needed to cool. Block any ports not being used. The 3rd revision of Simon McBeaths book is really good. [URL="https://www.amazon.com/Competition-Car-Aerodynamics-New-3rd/dp/1845847768"]https://www.amazon.com/Competition-Car-Aerodynamics-New-3rd/dp/1845847768[/URL] chr [/QUOTE]
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