Active Aero For FWD Drag Racing

One of the biggest challenges with front-wheel-drive (FWD) cars is traction. To combat this, additional weight is often added to the front of the vehicle, shifting the weight bias heavily onto the front tires in an effort to maximize grip during acceleration. While this can improve launch performance, it can also leave the rear of the car light and unstable.

That instability becomes even more noticeable at the end of a pass, when heavy deceleration transfers the majority of the vehicle’s weight forward. With less load on the rear tires, the car can become unsettled and unpredictable at high speeds.

One solution that is the use of active aero systems. By adding active aero to the rear of the car, you can generate additional downforce when it’s needed most, helping keep the rear planted and improving overall stability during braking and high-speed transitions.

Here are the parts that I used to make my kit:

Air Actuators:
https://www.mcmaster.com/6498K545/

Heim Joint Ends:
https://www.mcmaster.com/2458K35-2458K351/

Brackets:
https://www.mcmaster.com/6498K73/

 

The current control strategy is based on MPH, but I'll be switching to a timed system so that the wing can continue actuated during the entirety of decelerating. (Video of it in action on the top of this page)

If you found this helpful, consider checking out some of my race products that can also improve your racecar's performance and safety: