Race Car Suspension Design
Automotive Design
Project Info
Objective
Designed a race car suspension system suitable for drifting by achieving the following criteria,
- Added trail and reduced caster which adds more grip by increasing tire contact patch.
- Optimized camber ranging from -3 to -6.
- Adjustable Ackerman.
- 70 degrees depending on your wheel size and offset.
- Minimal bump steer in drift by perfecting tie-rod pitch angle.
- The compact drop knuckle design makes for a lighter and stronger design.
- Chromoly Heim joints and spherical bearings with self-lubricating nylon race which are easily replaceable.
Solution
- Designed with CAD software.
- Designed the Knuckles and A-arms to be manufactured using laser cutting and welding.
- The following parts were custom designed,
- Knuckle
- Lower arm
- Upper arm
- For the brakes, Wilwood calipers and rotors were used.
- For all joints, 5/8″ Heim joints were used.
Results
- Adjustable caster from 4.64 to 11.54 degrees.
- Adjustable camber from -1.9 to -8.26 degrees.
- 3 presets were designed for Ackerman.
- Custom-made knuckle with 0.25in thickness 7075 steel. All parts can be laser cut and welded together.
3D Cad designig
Design Criteria
CAD Software and Tools Used
- 3D modeling and Simulation using CAD
- Rendering Images
Design Guidelines and Standards
- All the calculations for the suspension design was done inside our company and according to the calculations we have designed the geometry
Manufacturing Methods Used
- Laser Cutting using CNC machine
- Welding
