Quote:
Originally Posted by Phase
Best way for my rear diffuser to work will probably just be by making a super smooth full underbody. Heck I wonder how much drag would be reduced just by flat panneling that whole underside canyon with the cat convert and exhaust.
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On the Audi 100-III it was good for delta Cd 0.010. ( Cd 0.23 if the Hyundai responded the same )
Filling in the rest, with the sub-3-degree diffuser, on the Audi was good for another delta-Cd 0.020 ( Cd 0.21 perhaps for IONIQ )
Your skirts get you to your target of Cd 0.20.
