Chris McHugh Randy Fulcher 2014-2015 ODU FSAE Car Ashley Wyatt Xavier Thompson Matt Galles Bobby Costen Chris McHugh Randy Fulcher

2013-2014 vs. 2014-2015 Car Performed well but: Cornering Suspension Intake Manifold Oversized Resolutions: Suspension redesign Intake relocated Frame reductions Braking Stability

Frame 95th percentile 10” diameter impact Safety factor above helmet Imaginary line from mid hoop to main hoop

Main Hoop Mid Hoop Front Hoop

Frame

Vent hood Fabricate Sheet Metal Plastic Ductwork 1 Phase Motor

2013-2014 vs. 2014-2015 Suspension Pull Rod Poor cornering Limited adjustability Push rod Adjustability Improved Handling

Incorporates Caster and KPI 2014-2015 Front Suspension Lightweight Uprights Improved Roll Centers Incorporates Caster and KPI Improved Camber Gain

Camber Change Calculator

Camber Vs. Steering Input Calculator Excel Calculator Developed to Output Camber Angle for Varying Caster, KPI, and Steering inputs

Redesigned Lightweight Uprights Lengthened to Improve Roll Centers Overall Weight Reduced Constructed from 6061-T6 Aircraft Grade Aluminum

Coil Over Redesign Proper shocks can correct handling problems Stiffer shocks heat up tires faster 1 to 1 rocker ratio

FSAE PS-78PB-DA

Rear Suspension Change from Pull-Rod to Push-Rod System Suspension articulation will be increased Redesigned A-arms to eliminate bending moments

Rear Upright Design Weight Reduction Adjustability Room for Brake Caliber Attachment Adjustable Toe- In /Out

Ackermann Steering Geometry

Ackermann Steering Geometry

Rack-and-Pinion Steering

Wheels Carbon Fiber Wheels Over budget Aluminum Magnesium

Braking Force per Individual Brake 60% in the Front, 40% in the Rear

Brake Selection Moved to 2+2 Braking System Will utilize same calipers, master brake cylinders Different size Rotors for braking distribution Modifications to rear and front uprights in process Splined Rear Wheel Hub Splined Rotor Mount Brake Caliper Bracket

Selection Criteria Based on Car & Driver mass of 310 kg (Last years car + 90kg driver) 3 second stop time from 50 mph (22.352 m/s)

Braking Components 1-3/4” Splined Rotor Mount Wilwood GP2000 Single

Budgeted Hours

Budget $15,000 $ - $14,917 $ 82.72 Front Upright Material $14,787 Funds Cost Part $15,000 $ - $14,917 $ 82.72 Front Upright Material $14,787 $ 130.58 Rear Upright Material $14,772 $ 14.81 Rear A-Arm Ends Material $14,022 $ 1,500.00 Shocks $13,694 $ 327.95 Rack and Pinion $13,622 $ 71.95 Stiletto Boots with Wires $13,598 $ 23.95 Stiletto Splined Coupler $13,499 $ 395.72 Wilwood GP200 Caliper $13,439 $ 239.72 Wilwood C-M Brake Pads