Aero Treatment We Might See On the HP Version?
06-14-2018, 01:54 PM
#21
Safety Car
All true points sunsalem, and while some elements of F1 aerodynamics translate into roadcars (like the undertray of the 488 Pista) the biggest challenge in Formula 1 aerodynamically is channeling all of the air around the giant wheels that it has, which are basically giant aerodynamic walls for the car. That's why the endplates of the front wing have so many vortex generators to channel air outside and over the wheels. While there is some small percentage of the wheel exposed to the oncoming air in a road car, the body blocks the vast majority of the wheel from interrupting the airflow, and hence why you don't see so many absurd shapes and winglets on prototype race cars. On road cars one of the biggest aerodynamic challenges from a drag perspective is the back of the car where air flowing around the car needs to rejoin quickly, creating a vacuum and significant parasitic drag. This is something the 488 Pista resolves with channeling air through the car to mitigate the vacuum effect:
06-14-2018, 01:59 PM
#22
Safety Car
McLaren pioneered the “hidden side skirt aero channel” on its 720S. I am guessing it has some air bleed attribute, maybe venting air from inside the front wheel cavity.
While the aero channels are not visible on the 720S, for the 2019 R8, Audi has decided for an aesthetic or functional reason, it should be very visible.
Might this become a feature of a 2021 high performance ME Corvette?
Picture credit/thanks to AutoEvolution/MotorAuthority respectively.
While the aero channels are not visible on the 720S, for the 2019 R8, Audi has decided for an aesthetic or functional reason, it should be very visible.
Might this become a feature of a 2021 high performance ME Corvette?
Picture credit/thanks to AutoEvolution/MotorAuthority respectively.
Goood Job!
06-15-2018, 12:20 AM
#24
Safety Car
Thread Starter
Actually the ME will further and significantly improve on the C7’s rear fascia air ducting system in a measurable way as follows. First some earlier Corvette generation history...
A C5 had lower rear fascia vents which allowed the air that was built up below/behind its rear wheels from being caught on the front side of the rear fascia (thus reducing air drag). This was done away with on the C6 — which GM realized was a mistake due that significant air being trapped on the front surface of its rear fascia (creating air turbulance and drag). Consequently, as we all know, the C7 brought back rear outer lower fascia venting, and as a means to exhaust hot air from the heat exchangers, added in additional small ducts outside the taillights.
The ME will first have even larger, center lower rear fascia venting.
There is a high probability that the ME will introduce an air bleed aero system similar to the Ferrari 488. Why? Because it is effective at reducing drag. The ME’s trapezoidal ducts below the taillights have three times the venting area of the ducts located outside of the taillights on a C7 — for these larger ME ducts will have at least two air system ducting components, e.g., exhausting hot air from the heat exchangers, and also exhausting air from the air bleed aero system (air that intitally came from laminar flow along the side of the car, then went into the large rear fender intake duct, and finally exiting from the trapezoidal rear fascia vents). By thus being at least partially serve as an air bleed aero component, as noted below, that would result in reduced drag compared to the C7, specifically by moving the air wake further behind the car — as is noted below on the comparable Ferrari 488 GTB aero air bleed system.
A C5 had lower rear fascia vents which allowed the air that was built up below/behind its rear wheels from being caught on the front side of the rear fascia (thus reducing air drag). This was done away with on the C6 — which GM realized was a mistake due that significant air being trapped on the front surface of its rear fascia (creating air turbulance and drag). Consequently, as we all know, the C7 brought back rear outer lower fascia venting, and as a means to exhaust hot air from the heat exchangers, added in additional small ducts outside the taillights.
The ME will first have even larger, center lower rear fascia venting.
There is a high probability that the ME will introduce an air bleed aero system similar to the Ferrari 488. Why? Because it is effective at reducing drag. The ME’s trapezoidal ducts below the taillights have three times the venting area of the ducts located outside of the taillights on a C7 — for these larger ME ducts will have at least two air system ducting components, e.g., exhausting hot air from the heat exchangers, and also exhausting air from the air bleed aero system (air that intitally came from laminar flow along the side of the car, then went into the large rear fender intake duct, and finally exiting from the trapezoidal rear fascia vents). By thus being at least partially serve as an air bleed aero component, as noted below, that would result in reduced drag compared to the C7, specifically by moving the air wake further behind the car — as is noted below on the comparable Ferrari 488 GTB aero air bleed system.
Originally Posted by AutomotiveRhythms
The Ferrari base bleed air intakes on the car’s sides are divided by a central flap. The flow over the upper part of the flap, which is also used for the engine air intake, is deflected and exits from the tail area to reduce the drag caused by the low-pressure wake directly behind the car.
The effect is created by the airflow exiting under pressure at the rear which energizes the wake that forms at the end of the car’s tail, moving it further from the tail where it thus interferes less with the car’s aerodynamics.
The effect is created by the airflow exiting under pressure at the rear which energizes the wake that forms at the end of the car’s tail, moving it further from the tail where it thus interferes less with the car’s aerodynamics.
Last edited by elegant; 06-15-2018 at 01:04 AM.
06-15-2018, 01:29 AM
#25
Le Mans Master
Interesting! ;)
The scalloped side air intakes are a homage to those found on the 308 GTB, and are divided by a central partition. Air entering the top intake is partially directed into the turbocharger compressor intake, while the rest is directed through the rear of the car and exits alongside the rear lights, increasing air pressure behind the car in order to reduce aerodynamic drag.
https://en.wikipedia.org/wiki/Ferrari_488
The bleed or bypass air must be quite variable depending on the engine demands. Just an aero component!
The C7's system is at least consistent!
And Got Lift?
https://www.southerncarparts.com/cor...eals-p-42.html
C5 and C6 tail and license plate light air gaps release higher pressure air, almost hidden.
Decidedly low tech.
https://en.wikipedia.org/wiki/Ferrari_488
The bleed or bypass air must be quite variable depending on the engine demands. Just an aero component!
The C7's system is at least consistent!
And Got Lift?
https://www.southerncarparts.com/cor...eals-p-42.html
C5 and C6 tail and license plate light air gaps release higher pressure air, almost hidden.
Decidedly low tech.
Last edited by johnglenntwo; 06-15-2018 at 07:17 AM.
06-15-2018, 10:05 AM
#26
Safety Car
Who ever produced that video hasn't a clue. If you continue to reproduce this nonsense, the reflection is upon you.
06-15-2018, 03:45 PM
#27
Le Mans Master
The scalloped side air intakes are a homage to those found on the 308 GTB, and are divided by a central partition. Air entering the top intake is partially directed into the turbocharger compressor intake, while the rest is directed through the rear of the car and exits alongside the rear lights, increasing air pressure behind the car in order to reduce aerodynamic drag.
https://en.wikipedia.org/wiki/Ferrari_488
https://en.wikipedia.org/wiki/Ferrari_488
06-16-2018, 07:53 AM
#28
Race Director
I like aero bits visible like big rear wings, diffusers, front winglets etc. Big central fins are all the rage in Racing now. F1, Indy, prototypes all have central fins now. I’m not wild about the fin but it could appear on C8 Z06 or ZR1
06-16-2018, 08:03 AM
#29
Safety Car
In order to reduce drag, the air has to be accelerated, to be accelerated it has to pick up significant heat. It picks up that heat by flowing through the intercoolers, and possibly oil and transmission coolers.
Quote:
Originally Posted by johnglenntwo View Post
The scalloped side air intakes are a homage to those found on the 308 GTB, and are divided by a central partition. Air entering the top intake is partially directed into the turbocharger compressor intake, while the rest is directed through the rear of the car and exits alongside the rear lights, increasing air pressure behind the car in order to reduce aerodynamic drag.
https://en.wikipedia.org/wiki/Ferrari_488
Quote:
Originally Posted by johnglenntwo View Post
The scalloped side air intakes are a homage to those found on the 308 GTB, and are divided by a central partition. Air entering the top intake is partially directed into the turbocharger compressor intake, while the rest is directed through the rear of the car and exits alongside the rear lights, increasing air pressure behind the car in order to reduce aerodynamic drag.
https://en.wikipedia.org/wiki/Ferrari_488
The C8 section is nothing but fake news. Moderators! Please!
06-16-2018, 11:14 AM
#30
It's the result of some spectacular crashes of LMP1 cars in particular over the years.
Last edited by sunsalem; 06-16-2018 at 11:15 AM.
06-16-2018, 11:30 AM
#31
Le Mans Master
Race car on the street! ;)
- Slicks to DOT track
- Low center of gravity to less
- Power to weight 2,750lb to 3,200lb (IE 500hp×5.5 to 516hp×6.2)
- Slicks, CoG, and Aero(DF/Drag) to Locking diff and AH chassis control!
Last edited by johnglenntwo; 06-16-2018 at 12:32 PM.