OVERVIEW
Rear diffusers are extremely efficient downforce producing devices when designed properly. We set out to produce a functional rear diffuser for the Porsche 981 GT4 using state of the art R&D processes. The assembly blends function and form utilizing carbon fiber, sheet metal, and hard rubber.
Utilizing scan data, CAD, and ANSYS Fluent analysis software; we were able to design and produce a functional and aesthetically pleasing rear diffuser for this Porsche chassis.
The three main diffuser planes are produced from 2×2 twill, autoclave cured, carbon fiber; while the strakes are manufactured from durable polyurethane for longevity.
The entire unit bolts to chassis locations through multiple sheet metal brackets. There is absolutely no drilling or fabrication required for installing this rear diffuser.
WHAT IS INCLUDED
- Diffuser Main Plane, Left-Hand
- Diffuser Main Plane, Center
- Diffuser Main Plane, Right-Hand
- Bracket (4)
- Strake, Hard Rubber (4)
- Hardware Kit, Includes All Hardware Necessary for Install
FEATURES
Improved Vehicle Performance, Both with Increase in Downforce and Reduction In Drag
Analyzed with ANSYS Fluent to Improve Performance Given Build Volume
Flows with the Factory Bumper Lines
Durable and Replaceable Strake Design for Improved Longevity
Modular Design – Able to add on Flat Underbody Cover for Improved Performance
SPECIFICATIONS
2×2 Twill, Autoclave Cured, 1.5mm Thick Carbon Fiber Construction
Lightweight Bonded Carbon Strengthening Sections on Top of Diffuser Main Planes for a Rigid Main Plane
Durable and Replaceable Strake Design
CNC Laser and Bent 5052 Aluminum Brackets
Stainless Hardware Throughout
SCIENCE
The rear diffuser and undertray were designed to tie together the rear aerodynamic package of the 987 Cayman. Coupled with our Front Dive Plane Kit, this creates our Ventus 1 kit and creates a solid bump in downforce with minimal drag increase. The design maximized the area under the car to hit specific performance goals while being aesthetically pleasing.
In the Ventus 2 kit, coupled with our front splitter and rear wing; a significant increase in downforce is achieved.
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