The Car


RFR 17-18 Specifications


Body and Aerodynamics
  • Body contours and aerodynamic features designed using traditional CAD and STAR-CCM+ computational fluid dynamics software
  • Carbon fiber body panels manufactured in-house using CNC routed, hand finished foam molds and resin infusion process
  • Carbon fiber weave selection optimized with respect to wing aerodynamics
  • Multi-element front and rear wings
  • Wings mounted using water jet aluminum brackets and mounts
  • Custom livery with select sponsor logos


Chassis
  • Chromoly steel tube frame designed using Solidworks CAD and FEA software
  • TIG welded nodes
  • Fully boxed component mounting tabs for reduced bending compliance
  • Designed for packaging that lowers the overall center of gravity and polar moment of inertia


Controls and Ergonomics
  • Electropneumatic shifting system controlled via steering wheel mounted paddles
  • Ultra-light steering steering rack with 3D-printed sensor mounting
  • Adjustable aluminum pedal assembly
  • Carbon fiber seat manufactured in-house, with supporting waist and shoulder bolsters


Electronics
  • MoTeC M130 ECU paired with a MoTeC C185 Display/Logger
  • In house designed and manufactured CAN enabled sensor box


Powertrain
  • 449cc Yamaha YFZ450R engine (45 HP and 25 lb-ft torque) with factory dry-sump lubrication system and slipper clutch
  • Engine modeled in GT-Power and Star-CCM+ to develop intake and exhaust systems for optimum power across the RPM range
  • Intake manufactured using lost wax molds and single piece carbon fiber layup
  • TIG-welded stainless steel exhaust optimized for maximum power
  • Custom electronic fuel injection system; calibrated in-house
  • Close ratio 5-speed sequential manual transmission
  • Drexler Salisbury-type limited-slip differential with adjustable lock-up and pre-load settings


Suspension
  • Hoosier LC0 18x6-10 Formula SAE tires
  • Majority of suspension components CNC machined out of 7075 aluminum
  • 1-piece magnesium wheels
  • Custom center-locking wheel hubs with integrated tripod housing
  • High performance, low friction, deep groove bearings
  • Aluminum uprights with adjustable camber and steering-arm plates
  • Pull-rod Front/ Push-rod Rear suspension
  • 4-way adjustable Ӧhlins spring-damper assemblies
  • Aluminum rockers with rear anti-roll bar attachments
  • T-bar style anti-roll bar, adjustable via a lever in the driver cell