Recently, I had the opportunity to work with a muscle car enthusiast and re-design a 1960’s hood scoop. The task was to retro fit a K&N filter to an old air scoop design. The reason for this was to eliminate foreign objects from entering the carburetor and give it a fresh look. I reversed engineered the old scoop and scaled up the geometry proportional to the filter using SolidWorks. The part was printed from FDM ABS-M30 to be economical and ease of finishing operations. ABS-M30 also has relatively good physical properties and has a temp rating suitable for this application.
The filter is attached by simply popping it into a special groove designed into the opening of the scoop. We then tested the prototype on the actual car at Bandimere Speedway in Morrison, Colorado. The test was successful and grabbed the attention of other car buffs! We are currently working on a surface finishing process that will give it a shiny metallic look. Updates to come!