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Enhancement of a Vintage Muscle Car’s Suspension. Jonathan Hoffman Advisor: Professor Bucinell. http://www.globalwest.net/. Background. ‘Muscle’ car era- 1960’s to early 1970’s Produced heavy cars with significant power Other car characteristics were overlooked.
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Enhancement of a Vintage Muscle Car’s Suspension Jonathan Hoffman Advisor: Professor Bucinell http://www.globalwest.net/
Background • ‘Muscle’ car era- 1960’s to early 1970’s • Produced heavy cars with significant power • Other car characteristics were overlooked http://www.matchboxcars.com/
1969 Chevrolet Camaro • Legendary champion in SCCA Trans-Am Series • Won 10 of 12 1968 races and championship • Won 6 of 12 1969 races and championship http://www.superchevy.com/ http://www.penske.com/
Project Objective • Bring the suspension system up to modern standards • 35 years of technology • Enhanced Suspension • Improved handling capabilities • Without sacrificing ride quality http://www.chrysler.com/
Sources of improvement • Poor A-arm geometry • Excessive positive camber gain • Small front sway bar • Minimal roll resistance • Tall springs • High center of gravity • Antiquated shocks • Poor ride quality http://www.globalwest.net/
Suspension Alternatives • MacPherson strut • Pros: Inexpensive, compact • Cons: High mounting height required, moderate handling • Double A-arm (Wishbone) • Pros: Rigid, greatest handling performance • Cons: Costly, space engaging http://www.autozine.com/
Excessive Positive Camber Gain • Outside tire loses contact with ground during cornering • Caused by poor A-arm geometry http://www.chevyhiperformance.com/
Suspension Modeling Software • WinGeo3 • Effects of changes in camber, toe, scrub, roll center, etc. http://www.mitchellsoftware.com/
Remaining Tasks • Analyze alternatives with software • Define final design • Manufacture final design • Before / after performance testing http://www.hotrod.com
Questions / Acknowledgements ? • Professor Bucinell • William C. Mitchell