My custom decklid Whaletail.
09-24-2019, 11:59 AM
#17
Rennlist Member
In those cars, the vent is the intake via negative air pressure inside the trunk being created by the fan. In your car, the wing is the intake. My concern would be that the vents could allow air to flow in the wing and out the vents, instead of in the wing and through the fan to the top of the motor. This would also reduce downforce, as noted by another poster mentioned.
09-24-2019, 12:29 PM
#18
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Killer results , love the small details of your car and this is just another fine example of your imagination and execution.
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Instagram :Swine11 | TitanMotorsports
Swine11 ReBoot - 964 / 993 Shift Boot Trim Panel
2004 996 GT3 | 1986 Carrera 3.2 (future Keen Project) | 2016 Cayenne Diesel
Instagram :Swine11 | TitanMotorsports
Swine11 ReBoot - 964 / 993 Shift Boot Trim Panel
2004 996 GT3 | 1986 Carrera 3.2 (future Keen Project) | 2016 Cayenne Diesel
09-24-2019, 12:32 PM
#20
In those cars, the vent is the intake via negative air pressure inside the trunk being created by the fan. In your car, the wing is the intake. My concern would be that the vents could allow air to flow in the wing and out the vents, instead of in the wing and through the fan to the top of the motor. This would also reduce downforce, as noted by another poster mentioned.
The same happens with a tail, except that the air over the grille is at higher pressure because of the Bernouilli effect, resulting in cooler air to the intake fan.
So it seems putting holes under the wing would likely result in some inefficiency, because you'd be fighting against the fan, with some of the high pressure air entering through the grille and exiting directly through the holes/vents.
By contrast, putting holes in the decklid of a car without a wing doesn't cause the same issue, because the air is generally higher pressure across the entire decklid.
09-24-2019, 01:05 PM
#21
Rennlist Member
Thread Starter
In those cars, the vent is the intake via negative air pressure inside the trunk being created by the fan. In your car, the wing is the intake. My concern would be that the vents could allow air to flow in the wing and out the vents, instead of in the wing and through the fan to the top of the motor. This would also reduce downforce, as noted by another poster mentioned.
This has me curious about airflow. In a car without a wing, fresh air enters through the high pressure area over the grille, some of it is taken in by the intake, while some of it is captured by the fan and pulled over the engine. That hot air then flows down and back across the headers and out from under the car. Is that correct?
The same happens with a tail, except that the air over the grille is at higher pressure because of the Bernouilli effect, resulting in cooler air to the intake fan.
So it seems putting holes under the wing would likely result in some inefficiency, because you'd be fighting against the fan, with some of the high pressure air entering through the grille and exiting directly through the holes/vents.
By contrast, putting holes in the decklid of a car without a wing doesn't cause the same issue, because the air is generally higher pressure across the entire decklid.
The same happens with a tail, except that the air over the grille is at higher pressure because of the Bernouilli effect, resulting in cooler air to the intake fan.
So it seems putting holes under the wing would likely result in some inefficiency, because you'd be fighting against the fan, with some of the high pressure air entering through the grille and exiting directly through the holes/vents.
By contrast, putting holes in the decklid of a car without a wing doesn't cause the same issue, because the air is generally higher pressure across the entire decklid.
total ricer right? Next is its too low. And why did you put Japanese crap on it.
09-24-2019, 01:20 PM
#22
It's OK, dude. Your car is gorgeous. Build to please yourself, but posting on the technical forum is going to invite technical comments.
The following users liked this post:
9SIX4-C4 (09-24-2019)
09-24-2019, 01:35 PM
#23
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Thread Starter
09-24-2019, 01:36 PM
#24
In those cars, the vent is the intake via negative air pressure inside the trunk being created by the fan. In your car, the wing is the intake. My concern would be that the vents could allow air to flow in the wing and out the vents, instead of in the wing and through the fan to the top of the motor. This would also reduce downforce, as noted by another poster mentioned.
The following 2 users liked this post by JesusFast:
BLACK3.2 (11-01-2019),
Matt Andrews (09-24-2019)
09-24-2019, 02:46 PM
#26
Rennlist Member
Thread Starter
09-25-2019, 12:11 AM
#27
What you accomplished here is phenomenal, Jared! Love it!
I was also trying to get a wing figured out. Bought a wing, but realized it's an extended motorsport wing.
Still have not decided how to move forward.
I was also trying to get a wing figured out. Bought a wing, but realized it's an extended motorsport wing.
Still have not decided how to move forward.
09-25-2019, 10:24 AM
#29
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Thread Starter
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9SIX4-C4 (09-25-2019)
09-25-2019, 10:45 AM
#30
Rennlist Member
Have you had it tested in a wind tunnel? 