Hello everyone,
My name is John Strudel and I am the 2015 Powertrain team leader for Florida Atlantic University's Owls Racing and we will be competing in FSAE Michigan this year. I am a junior and this is my first year with the team. My experience is 15 years as a automotive technician and I returned to school to learn the math/science behind the functions of automotive systems. That being said, I am working on designing the intake and exhaust manifolds for the 2016 engine and a former member created a spreadsheet for calculating the runner lengths and I have been working to decipher it in hopes of using it as a design tool and as an engineering document for future members. Unfortunately the member that created it is not available for reference so the question I have is if the formula I derived from the spreadsheet looks correct:
<Runner length (mm)=((Speed of Sound in air @ IAT (m/s)*1000)/(2*Harmonic wave))*((60/RPM)/360)*Cam Duration @ .050>.
The current design correlates with this equation and performs well. I have ordered Scientific Design of Exhaust and Intake Systems to read. Any other documents or books you can suggest would be great.
Thanks,
John Strudel