Aero tweaks?

[Larry L.]

From the Superlite site:


Thursday, April 26, 2012

New Lap Record at Autobahn

...we began with the same successful foundation that carried the SLC to a National Championship last year, and added in a bit more power courtesy of a new engine program with Thomson Automotive (Thomson Automotive Engines) . We also threw in a couple of aero tweaks.


...which were (are)?

 

[Fran Hall RCR]

We spent months last winter doing CFD work on the whole car ...

No one thing made the difference ...a whole laundry list of small tweeks added upto 390kg more front downforce with an overall drag reduction of 15%.

The front splitter is now a true wing profile and we pull air over the top of the car from the high pressure area under the splitter.
The rad is now moved forward and laid down more too....

Canards are no longer needed ...the car ran the original race tail in 2012 as opposed to the street tail in 2011...

 

[Mark Bajus]

390kg: wow! Like 3 fat guys sitting on the front bumper!

 

[Fran Hall RCR]

Yep....making more grip for the even bigger front tires....

 

[Larry L.]

We spent months last winter doing CFD work on the whole car ...

No one thing made the difference ...a whole laundry list of small tweeks added upto 390kg more front downforce with an overall drag reduction of 15%.

The front splitter is now a true wing profile and we pull air over the top of the car from the high pressure area under the splitter.
The rad is now moved forward and laid down more too....

Canards are no longer needed ...the car ran the original race tail in 2012 as opposed to the street tail in 2011...

Gotcha. Thanks!

 

[mark b.]

are these improvements being used in current production?

 

[Fran Hall RCR]

They are race only and are all available...P.O.A.

 

[TSR]

Hi Fran
I was wondering if you had and CFD data on the Fiberglass Wing and the Carbon Fiber wing, Also trying to find the chord and width of each wing, As I remember the C/F wing is wider than the SLC rear deck that should be around 74" wide.
Thank you

 

[Fran Hall RCR]

Carbon wing is selig 1223 data is available online.

We don't have CD on the standard wing , we only spent the time and money for CFD on parts we used on the race cars as we were looking for performance improvements at the limit.

 

[TSR]

Thank you Fran
That should get me some CFD data, however I still have unknown variables with chord and width to get real usable #.

 

[Fran Hall RCR]

72 wide 16 chord is standard on the race car but we also have them in any width plus 12 and 14 chord.