HahahahaI dunno but this pic looked a lot like a package of bacon and now I'm hungry for breakfast.
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HahahahaI dunno but this pic looked a lot like a package of bacon and now I'm hungry for breakfast.
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5 second around a track you are familiar and add in that you already had some aero from your previous setup is massive! Glad everything worked out like it was designed.Back to aero
Some update on my aero package
New Splitter worked great.
The 2 pairs of AJ tunnels worked great.
I added also his side plates and tire deflectors
And now i just added 2 canards. All works together with hood and fender vents. (Racelouvers)
The splitter has also a leading edge made with 2 Alluminium plates curved about 30deg to facilitate air under the car.
I called it ROMA.
To balance this new front splitter i sold my APR250 wing and added AJ Fulcrum14.
I ran it at 7-8deg at Sonoma where the speeds are not super high.
To compensate the bigger DF load I put stiffer springs using AJ video on how to calculate the increasing spring rate ( roughly).
I lost some low speed grip cause the stiffer springs. Saturday was bad ,sunday better after adjusting compression and rebound. I feel a slightly softer spring would be better. We will see. Cause I'll be testing slicks real soon. So maybe the stiffer springs are necessary for the extra grip of the tire (especially in braking zone)
The car was 5 sec faster than previous laptime.
Of course is not only the aero. But BECAUSE THE AERO you just push harder cause you feel the car "glued"
Hope this help.
Ale
I have no idea...lol. Aero isn't my specialty. I've been adding stuff a piece at a time over the years.View attachment 75708
That's a fairly complex little arrangement. What was the evolution path?
And for AJ, it seems that most doing Time Attack have what appears to be a flat splitter significantly wider than the car itself and often for no apparent reason. I suppose if there were enough crap sticking off the outside edge to act as some sort of end-plate, I can see it, but most of the time, there is little to nothing attatched. Have you seen any justification for this extra splitter width? If so, what is it actually accomplishing in terms of flow?
At least it seems your placement is intentional. A deflector like the stock one to prevent/reduce squirt would likely help more.I also have the double fender vents (top and rear .)this should help.even more
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I think you are thinking a little to much 2D. If I'm thinking of what you are describing correctly, while the extra wide splitters on some top level TT cars don't have a lot going on from the surface or on top, they almost always have some sort of aggressively profiled, wing like shape on the underside. The extra surface area, and sticking out to be in free stream air, and being in ground effect allow them to produce plenty of front downforce. Downsides are they are just huge which wouldn't work in any wheel to wheel racing, hard to produce or manufacture, has to be removed to get on and off teh trailer, or there are much more constrictive class rules, etc. But if you talking about literally just a flat flat splitter much wider than the car, they are leaving a lot to be desired.And for AJ, it seems that most doing Time Attack have what appears to be a flat splitter significantly wider than the car itself and often for no apparent reason. I suppose if there were enough crap sticking off the outside edge to act as some sort of end-plate, I can see it, but most of the time, there is little to nothing attatched. Have you seen any justification for this extra splitter width? If so, what is it actually accomplishing in terms of flow?
What you mean with this ? Like a tire spats?At least it seems your placement is intentional. A deflector like the stock one to prevent/reduce squirt would likely help more.
I think you are thinking a little to much 2D. If I'm thinking of what you are describing correctly, while the extra wide splitters on some top level TT cars don't have a lot going on from the surface or on top, they almost always have some sort of aggressively profiled, wing like shape on the underside. The extra surface area, and sticking out to be in free stream air, and being in ground effect allow them to produce plenty of front downforce. Downsides are they are just huge which wouldn't work in any wheel to wheel racing, hard to produce or manufacture, has to be removed to get on and off teh trailer, or there are much more constrictive class rules, etc. But if you talking about literally just a flat flat splitter much wider than the car, they are leaving a lot to be desired.
Like your OEM deflector between the tunnel exit. The part that helps reduce the squirt.What you mean with this ? Like a tire spats?
Yeah, I mean I'd have to see specific examples but a lot of "monkey see, monkey do" goes on for sure.I'm definitely thinking about limiting the airflow to 2 dimensions and wondering how an extended flat plate with nothing on the end would accomplish that. I was in Atlanta last weekend and got a chance to look at some Time Attack cars. What you're saying makes sense if it was an actual airfoil. I'm going to guess that a few of the top level cars have actual airfoils under the extended portion of their splitters. The rest are playing monkey see/monkey do and don't.
Help more in what regard? Whats the goal?At least it seems your placement is intentional. A deflector like the stock one to prevent/reduce squirt would likely help more.
One thing maybe to consider is that the side part of the splitter isI'm definitely thinking about limiting the airflow to 2 dimensions and wondering how an extended flat plate with nothing on the end would accomplish that. I was in Atlanta last weekend and got a chance to look at some Time Attack cars. What you're saying makes sense if it was an actual airfoil. I'm going to guess that a few of the top level cars have actual airfoils under the extended portion of their splitters. The rest are playing monkey see/monkey do and don't.
This."Spat" AKA "Tire Blocker"
Absent a fence or spat, the side/outer and trailing ends of a flat splitter don’t have measurable pressure difference. Just saying.One thing maybe to consider is that the side part of the splitter is
Still separating the higher pressure air coming from above the splitter and running around the front fascia and the free flow air beneath (lower pressure). Of course without any tire spat , tire deflector or flap/side plate the amount of pressure differential is way less but i think still present.
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