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Tracking / Autocross / HPDE / Drifting What these cars were built for!


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Old 11-23-2020, 08:54 PM   #15
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Originally Posted by M0nk3y View Post
Why are you so against adding a rear wing element?

Spoilers like the 949Racing car result in a high drag effect as a results of a massive wake zone immediately behind the element itself.

My Versus front splitter + UCW Rear Wing at 6* AOA resulted in 2 mph less VMax at Mid-Ohio (122 vs 120 mph) into China Beach and still was ~1.5 seconds faster on the same tire same conditions.

I guess I'm not discounting a wing; an instructor I respect suggested a wickerbill.



Did you ever entertain that before adding your wing? (I'd love to be able to get to 120 on the back of Mid-Oh!)
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Old 11-23-2020, 08:56 PM   #16
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quote: M0nk3y
Spoilers like the 949Racing car result in a high drag effect as a results of a massive wake zone immediately behind the element itself.



Kyle, I thought this one was way on the drastic side!
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Old 11-24-2020, 10:51 AM   #17
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Originally Posted by snuff58 View Post
I guess I'm not discounting a wing; an instructor I respect suggested a wickerbill.



Did you ever entertain that before adding your wing? (I'd love to be able to get to 120 on the back of Mid-Oh!)
Hmm, so follow up question. Why does the instructor tell you to get a wickerbill? What's going on with the car that would dictate that (just trying to get a thought process behind it).

As far as me, no. I didn't entertain it because in NASA TT the point deduction for a rear wing element is the same regardless of what occurs and I know a wing is better overall for downforce levels I want to achieve.

And here's the comparison. Wingless vs Wing

Wingless


Wing
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Old 11-24-2020, 11:42 AM   #18
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Reasons to do a spoiler/ducktail over a wing? Cost, simplicity, convenience, rules, etc.
Not performance.

A proper wing will be far more effective.

- Andrew
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Old 11-24-2020, 10:11 PM   #19
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Okay, well, I feel a lot better about a WING.


Now for any input on various brands/models. . . . . . widths, riser heights, etc.
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Old 11-25-2020, 10:20 AM   #20
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Verus and Nine Lives Racing are good companies that provide CFD data for their designs.

https://www.verus-engineering.com/sh...erodynamics-40
https://www.verus-engineering.com/sh...10?category=40
https://9livesracing.com/products/th...67f41453&_ss=r
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Old 11-25-2020, 01:14 PM   #21
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APR also provides freestream CFD data.
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