Vorsteiner | Porsche Cayman GT4 V-CS Build Biography
04-28-2016, 08:00 PM
#1
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Vorsteiner | Porsche Cayman GT4 V-CS Build Biography
Vorsteiner | Project Porsche Cayman GT4 V-CS Edition
When the announcement of the Cayman GT4 was announced, we were thrilled that Porsche's infamous GT division would take a stab at their acclaimed mid engine platform. We wasted no time and resources to obtain the vehicle at the earliest delivery stages. The inspiration behind the catalog of the GT4 V-CS is a rather difficult task as we approach this endeavor both as an enthusiast and a tuning company.
We did our due diligence in researching, interviewing and simulation testing to fine tune our purpose in the GT4 V-CS. As GT4 owners, we all have a vehicle that can be enjoyed for our own selfish reason. Some want an inspiring daily driver, some want the Weekend Warrior and others a dedicated track toy to tackle your local DE's.
At Vorsteiner, our mission was to create the V-CS program to be a harmony of design and function. We don't have the luxury of living at the racetrack with our vehicles but when we do, it's fantastic knowing that our tuning program will enhance our field trip.
Our V-CS program consists of aerodynamic, weight and styling cues to customize your GT4's personality. We are working closely with technology partners to constantly evolve and improve the program.
Aerodynamic CFD Test & Analysis:
V-CS Aero Front Splitter Carbon Fiber
V-CS Rear Lower Diffuser Carbon Fiber
V-CS Side Diffusers Carbon Fiber
V-CS Aero Riser Extensions Aluminum or Carbon Fiber
19x9 / 19x11 Forged Wheels finished in our Bespoke Bronze
As it currently sits awaiting Thermal Track Testing with Technology Partner, GMG Racing
If you have any additional questions please PM us or shoot us an email at support@vorsteiner.com We will be updating our findings with the community so stay tuned!
04-29-2016, 11:39 AM
#3
What did the aerodynamics testing show, numbers-wise, about downforce gains?
Also, is there any concern for the mounting points on the decklid from the additional downforce and distance of that force from those points?
Also, is there any concern for the mounting points on the decklid from the additional downforce and distance of that force from those points?
04-29-2016, 08:12 PM
#4
Here is the data from our aerodynamics engineer who actually does work for numerous professional race car teams & various European OE car manufacturers:
"In the stock position, the elevated rear spoiler of a Porsche Cayman GT4 is located in relatively smooth, fast moving airflow.
Despite the GT4's aerodynamic profile, airflow close to the rear hatch possesses less energy than that of the undisturbed freestream.
Raising the rear spoiler away from the body allows it to operate in faster, more energetic flow. This results in higher performance from the wing and ultimately more aerodynamic downforce.
Near top speed, the rear wing will generate over 22 pounds of additional downforce with the 65mm support extensions which is an 11% increase over stock.
The increase in air travel speed over the body of the GT4 went from 76mph to 81mph at a driving speed of 90mph."
"In the stock position, the elevated rear spoiler of a Porsche Cayman GT4 is located in relatively smooth, fast moving airflow.
Despite the GT4's aerodynamic profile, airflow close to the rear hatch possesses less energy than that of the undisturbed freestream.
Raising the rear spoiler away from the body allows it to operate in faster, more energetic flow. This results in higher performance from the wing and ultimately more aerodynamic downforce.
Near top speed, the rear wing will generate over 22 pounds of additional downforce with the 65mm support extensions which is an 11% increase over stock.
The increase in air travel speed over the body of the GT4 went from 76mph to 81mph at a driving speed of 90mph."
04-30-2016, 06:15 AM
#7
Instructor
A couple of questions.
Do the wing strut extensions retain the adjustable angle of attack for the wing? Given the increase in downforce reported to be 22pounds (10kg) at top speed using the wing strut extensions, does this require removal of the blanking plates in the front aero ducts?
Do the wing strut extensions retain the adjustable angle of attack for the wing? Given the increase in downforce reported to be 22pounds (10kg) at top speed using the wing strut extensions, does this require removal of the blanking plates in the front aero ducts?
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04-30-2016, 10:58 AM
#8
A couple of questions.
Do the wing strut extensions retain the adjustable angle of attack for the wing? Given the increase in downforce reported to be 22pounds (10kg) at top speed using the wing strut extensions, does this require removal of the blanking plates in the front aero ducts?
Do the wing strut extensions retain the adjustable angle of attack for the wing? Given the increase in downforce reported to be 22pounds (10kg) at top speed using the wing strut extensions, does this require removal of the blanking plates in the front aero ducts?
The wing risers simply raise the height of the existing wing blade by 65mm so all of the adjustability of the OE wing blade attack angle still remains 100% intact.
We would recommend removing the front blanking plates on the underside when using the vehicle at the track as this was designed to counter the additional rear downforce of the factory wing when you adjust the angle of the wing blade.
We will have more track specific feedback next Friday for the community when GMG racing takes our GT4 to thermal for a full day of testing.
Hope this helps.
04-30-2016, 11:01 AM
#9
Front: 245/40/19 Michelin Pilot Super Sports
Rear: 295/35/19 Michelin Pilot Super Sports
We will however be installing Hoosiers for the track testing day next week.
05-01-2016, 05:42 AM
#10
Instructor
Our wing risers are designed to be easily installed and removed in 10-15 mins with 4 OE bolts so it can be added or removed based on the type of track you are driving in which may or may not benefit from more rear downforce.
The wing risers simply raise the height of the existing wing blade by 65mm so all of the adjustability of the OE wing blade attack angle still remains 100% intact.
We would recommend removing the front blanking plates on the underside when using the vehicle at the track as this was designed to counter the additional rear downforce of the factory wing when you adjust the angle of the wing blade.
We will have more track specific feedback next Friday for the community when GMG racing takes our GT4 to thermal for a full day of testing.
Hope this helps.
The wing risers simply raise the height of the existing wing blade by 65mm so all of the adjustability of the OE wing blade attack angle still remains 100% intact.
We would recommend removing the front blanking plates on the underside when using the vehicle at the track as this was designed to counter the additional rear downforce of the factory wing when you adjust the angle of the wing blade.
We will have more track specific feedback next Friday for the community when GMG racing takes our GT4 to thermal for a full day of testing.
Hope this helps.
05-03-2016, 08:50 AM
#12
Instructor
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Looking sharp. I'm a littler meh on the raised wing looks-wise, but I particularly like the side diffusers. The front splitter and rear diffuser also work well together with them for that complete, sorted/finished look. Nicely done.
Excellent photos! Don't know if I've ever seen track day shots that sharp before.
05-08-2016, 02:39 AM
#15
Burning Brakes
Saw this car at GMG today... What a beauty. James did a great job of walking us through the parts, the difference they made at Thermal and how they helped achieve such a great lap time. 2:14 ish at Thermal is moving
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