Noise Optimisation of Plastic Air Intake Manifolds 980273

There is more to a performance sports cars than just performance, handling and styling, it has to sound correct. Every sports car enthusiast knows what sound to expect from the V8 Aston Martin, the V12 Lamborghini or the Flat 6 Porsche engines. These sounds are often perceived as a measure of performance, adding excitement and exhilaration to those lucky enough to sit behind the steering wheel.
So what happens when that sound needs tuning?
This paper details a case study of the Porsche Boxster 2.5L air intake manifold (AIM), the method used for analysing the component, the results and modifications, along with suggestions for producing a less harsh component.


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