I am starting to work on Scrap Metals body and one of the first things I am going to do is make the diffuser. It is probably the most important pice for adding downforce so I want to build that the way I want it and work everything else in the rear around it.
It just so happens our pool has a waterfall giving the perfect opportunity to visually see the effects of downforce. I was surprised how strong the pull was. I'm going with a curved shape which will be a little harder to make but we all love a challenge right.
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The two photos show fluid flow at different angles the top one about 60 degree and the 2nd around 45. It seemed like a gradual curve ending up around 45 degrees made the ideal flow. I also did some testing in the sink with similar results.
Any experts out there have a better suggestion for angles. I know that hunting for downforce in an Autocross car is somewhat of a losing battle but every little helps. I expect it will have more use than the current rolls of lead ballast.
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2015 & 2016 EMod Florida State Autocross Champion
2013 & 2014 DSP Florida State Autocross Champion
Scrap Metal Build Log
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