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      05-09-2019, 11:34 PM   #4
CTMP4me
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Drives: '08 Z4MC, '71 240Z with S54
Join Date: Sep 2016
Location: Toronto

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Quote:
Originally Posted by Michael9218 View Post
One thing to consider is the AoA should be measured from the perspective of the airflow and not assuming it's parallel to the ground. I found this image a while back. IIRC, that airflow is about 5 degrees coming off that roof line and the higher you mount the wing the less angle to the airflow. So your true AoA where you have that mounted is really more like 9 degrees. Though it may look odd, to get 4 degrees, your wing would actually be pointing up. I have my wing set level to the ground.

Accurate remark, this is what twisted / 3-D wings try to compensate for, to have a more even pressure distribution across the entire airfoil / same effective AoA across the span. The only economical way I can think of to get an airfoil like that is to start at OEM level i.e. Porsche GT3/GT2 RS wings that can be refined for a particular application because the development cost is spread over thousands of units.
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