Aero Question regarding spoiler and rear wing
#1
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Aero Question regarding spoiler and rear wing
Has anyone recorded and compared their lap times with both a rear spoiler and wing vs wing only vs spoiler only? I understand that running both a spoiler and wing are frowned upon. I just want to see the data myself.
#2
The need to get Clean Air to the leading edge of the wing is what you need. Anything that causes turbulence in that area will reduce downforce of the wing. To answer your question , it depends on the location of each and how they interact.
Dual element wings have a slot which can increase downforce but that is highly engineered.
Dual element wings have a slot which can increase downforce but that is highly engineered.
#4
If your wing is a good naca profile, it will produce way more downforce than a spoiler, and with less drag. We don't have any data on using both, as we have never done it. But, if you leading edge is a foot in front of the spoiler, and it is mounted higher that the spoiler, it might not hurt anything. Best thought is to tape short pieces of yarn to various areas around and near both wing and spoiler , drive the car and see if the yarn is laying flat or lifting in turbulence . That will show you what the air is doing. Use a camera or have a spotter near by as you drive by.
Or the other way, spend millions in a wind tunnel
Just saying.
Or the other way, spend millions in a wind tunnel
Just saying.
#5
Drifting
For instance with a wing you will probably run slower at Daytona in a C6Z but faster at Sebring. A high HP car can pull more wing, where a momentum car can easily be slowed down by even a small wing or spoiler.
The book Competition Car Aerodynamics is a great starting point.
https://www.amazon.com/Competition-C...r+Aerodynamics
It does a good job of explaining the relationship at the rear of the car and how a small spoiler may complement a wing on a passenger car.
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Radiologue (06-21-2016)
#6
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At what track, on what kind of car, and how is car setup? Not to mention the #1 aspect, worth by far the most time, the driver.
For instance with a wing you will probably run slower at Daytona in a C6Z but faster at Sebring. A high HP car can pull more wing, where a momentum car can easily be slowed down by even a small wing or spoiler.
The book Competition Car Aerodynamics is a great starting point.
https://www.amazon.com/Competition-C...r+Aerodynamics
It does a good job of explaining the relationship at the rear of the car and how a small spoiler may complement a wing on a passenger car.
For instance with a wing you will probably run slower at Daytona in a C6Z but faster at Sebring. A high HP car can pull more wing, where a momentum car can easily be slowed down by even a small wing or spoiler.
The book Competition Car Aerodynamics is a great starting point.
https://www.amazon.com/Competition-C...r+Aerodynamics
It does a good job of explaining the relationship at the rear of the car and how a small spoiler may complement a wing on a passenger car.
#7
It's hard to compare lap times with amateur drivers at the wheel. They're not going to be anywhere near as consistent as a professional, so it's hard to track little changes.
The spoilers aren't worth a whole lot, especially not compared to a proper wing setup. Most people put the wings WAY too close to the car. You want it as far up and back as possible. Usually the rules are what limit the wing location.
The spoilers aren't worth a whole lot, especially not compared to a proper wing setup. Most people put the wings WAY too close to the car. You want it as far up and back as possible. Usually the rules are what limit the wing location.
#8
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I would say generally on a 1.5 to 2 mile course aero is going to be worth 2-4 seconds off of your lap times. Talking with Louis this morning I don't know if either one of us have done an honest back to back on a customer's car without any other changes. I think when most have came in they have done aero along with suspension changes too.
Now that being said.....
Take the above picture from circa 1998 with a 5" lip spoiler on the TransAm series car....
vs
That same car a couple years later when the rules allowed the cars to run a wing, straight away speeds at say Long Beach increased 3-5 mph because you could run the same downforce but much more efficient in how they did it.
So that being said, yes you would want to remove any kind of "air brake" at the back of the car if you are going to run a wing.
Louis at GSpeed did some testing with a customer's C7 using our GT2 wing and their mounting kit at COTA. The car was 5 seconds quicker around the track with the wing vs the stock lip spoiler if I remember correctly. Louis can confirm that one.
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St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13
It is going to depend on the rules yes, but it can depend on the wing too....some of them are designed to use the air coming around and over the top of the car, not just totally out in the open.
But yes you are correct mounting it up or further back increases the lever action of the downforce.
#10
It is going to depend on the rules yes, but it can depend on the wing too....some of them are designed to use the air coming around and over the top of the car, not just totally out in the open.
But yes you are correct mounting it up or further back increases the lever action of the downforce.
But yes you are correct mounting it up or further back increases the lever action of the downforce.
Ideally, you would run a 2D wing out and away from the car. The rules don't always permit that though.
#11
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As you know we make a number of different aero products for the C5, C6, and C7 cars.
I would say generally on a 1.5 to 2 mile course aero is going to be worth 2-4 seconds off of your lap times. Talking with Louis this morning I don't know if either one of us have done an honest back to back on a customer's car without any other changes. I think when most have came in they have done aero along with suspension changes too.
Now that being said.....
Take the above picture from circa 1998 with a 5" lip spoiler on the TransAm series car....
vs
That same car a couple years later when the rules allowed the cars to run a wing, straight away speeds at say Long Beach increased 3-5 mph because you could run the same downforce but much more efficient in how they did it.
So that being said, yes you would want to remove any kind of "air brake" at the back of the car if you are going to run a wing.
Louis at GSpeed did some testing with a customer's C7 using our GT2 wing and their mounting kit at COTA. The car was 5 seconds quicker around the track with the wing vs the stock lip spoiler if I remember correctly. Louis can confirm that one.
I would say generally on a 1.5 to 2 mile course aero is going to be worth 2-4 seconds off of your lap times. Talking with Louis this morning I don't know if either one of us have done an honest back to back on a customer's car without any other changes. I think when most have came in they have done aero along with suspension changes too.
Now that being said.....
Take the above picture from circa 1998 with a 5" lip spoiler on the TransAm series car....
vs
That same car a couple years later when the rules allowed the cars to run a wing, straight away speeds at say Long Beach increased 3-5 mph because you could run the same downforce but much more efficient in how they did it.
So that being said, yes you would want to remove any kind of "air brake" at the back of the car if you are going to run a wing.
Louis at GSpeed did some testing with a customer's C7 using our GT2 wing and their mounting kit at COTA. The car was 5 seconds quicker around the track with the wing vs the stock lip spoiler if I remember correctly. Louis can confirm that one.
Info very helpful...
Do you guys have prefab mounts to the frame like you did on that C7 for a C6Z?
#12
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St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13
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St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13
The C5 and C6 have a bit more room behind the rear fascia than the C7 so rather than cutting through the deck lid and having to fight water leaks inside the car they went out then up with the mounts.
#15
I was just thinking from a simplicity standpoint, whether it be the modifications to the bumper cover or the ease of removing the entire wing assembly for transport (like on an open trailer)
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St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13
So there's no real advantage to doing that on a C6 other than pushing the wing further back?
I was just thinking from a simplicity standpoint, whether it be the modifications to the bumper cover or the ease of removing the entire wing assembly for transport (like on an open trailer)
I was just thinking from a simplicity standpoint, whether it be the modifications to the bumper cover or the ease of removing the entire wing assembly for transport (like on an open trailer)
#17
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You are going to have a different arm coming out, the curve of the bumper is different and so is the distance from the frame to the fascia cover itself. you would have to run some tests to see how thick it would need to be and how much support would need to be added to it because it would push off the frame much further than that of the C7.
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St. Jude Donor '03-'04-'05-'06-'07-'08-'09-'10-'11-'12-'13
I like the C7 set up. Nonetheless, I will be looking to upgrade my C6Z aero setup (ZR1 carbon fiber splitter, spoiler and side skirts currently) to include a more aggressive splitter and wing combo. Feel free to PM me as I have started ordering from you monthly as it is...
#19
Pro
As you know we make a number of different aero products for the C5, C6, and C7 cars.
I would say generally on a 1.5 to 2 mile course aero is going to be worth 2-4 seconds off of your lap times. Talking with Louis this morning I don't know if either one of us have done an honest back to back on a customer's car without any other changes. I think when most have came in they have done aero along with suspension changes too.
Now that being said.....
Take the above picture from circa 1998 with a 5" lip spoiler on the TransAm series car....
That same car a couple years later when the rules allowed the cars to run a wing, straight away speeds at say Long Beach increased 3-5 mph because you could run the same downforce but much more efficient in how they did it.
So that being said, yes you would want to remove any kind of "air brake" at the back of the car if you are going to run a wing.
Louis at GSpeed did some testing with a customer's C7 using our GT2 wing and their mounting kit at COTA. The car was 5 seconds quicker around the track with the wing vs the stock lip spoiler if I remember correctly. Louis can confirm that one.
I would say generally on a 1.5 to 2 mile course aero is going to be worth 2-4 seconds off of your lap times. Talking with Louis this morning I don't know if either one of us have done an honest back to back on a customer's car without any other changes. I think when most have came in they have done aero along with suspension changes too.
Now that being said.....
Take the above picture from circa 1998 with a 5" lip spoiler on the TransAm series car....
That same car a couple years later when the rules allowed the cars to run a wing, straight away speeds at say Long Beach increased 3-5 mph because you could run the same downforce but much more efficient in how they did it.
So that being said, yes you would want to remove any kind of "air brake" at the back of the car if you are going to run a wing.
Louis at GSpeed did some testing with a customer's C7 using our GT2 wing and their mounting kit at COTA. The car was 5 seconds quicker around the track with the wing vs the stock lip spoiler if I remember correctly. Louis can confirm that one.