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Group Buy for 991 GT3 and RS Carbon Gurney's?
Hello all!
If there's interest we'll do a group buy for our newly released 991 GT3 and RS Gurney's. Available in Matte or Gloss clear coat. 991 GT3 Retail: $495 991 GT3RS Retail: $495 991 GT3 Carbon Gurney Flaps https://cimg9.ibsrv.net/gimg/rennlis...2fe25194d8.jpg Dundon 991 GT3 Gurney Flap https://cimg0.ibsrv.net/gimg/rennlis...89bf35d4cb.jpg Dundon 991 GT3 Gurney Flap 991 GT3RS Carbon Gurney Flap https://cimg5.ibsrv.net/gimg/rennlis...947666c0b0.jpg 991 GT3RS Dundon Carbon Gurney Flap https://cimg6.ibsrv.net/gimg/rennlis...47f137700e.jpg 991 GT3RS Dundon Carbon Gurney Flap |
They look great, but I'm quite curious and knowing how much you test your products, how much extra down force can you achieve or is there more to it then that?
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curious how are they attached?
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Originally Posted by bronson7
(Post 13722272)
They look great, but I'm quite curious and knowing how much you test your products, how much extra down force can you achieve or is there more to it then that?
1. A CFD analysis will help to show benefit and an approximation of front rear downforce, the issue is that there are a TON of assumptions in a CFD analysis, ride height, rake 2. Monitoring the 991's shock travel sensors will provide some real world data as well. I have a DSC box that allows access and logging to these sensor pretty easy and plan to do a before and after. Gurney's do add additional downforce without having to increase the angle of attack of the rear wing, so those that are dialing in high speed rear grip vs straight line drag will gravitate to a gurney. For the 997.1 and .2 crowd a gurney was a given, especially for the RS. The bottom line will it reduce 5 seconds from your lap times, unlikely. Will it give you another toggle to dial in the car with yes. I still plan to get data but will likely be spring before I can get anything conclusive, unless we have really dry winter! ;) |
Originally Posted by autoxerGT3RS
(Post 13722380)
curious how are they attached?
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Originally Posted by Jamie@dundonmotorsports
(Post 13722416)
Great question:
1. A CFD analysis will help to show benefit and an approximation of front rear downforce, the issue is that there are a TON of assumptions in a CFD analysis, ride height, rake 2. Monitoring the 991's shock travel sensors will provide some real world data as well. I have a DSC box that allows access and logging to these sensor pretty easy and plan to do a before and after. Gurney's do add additional downforce without having to increase the angle of attack of the rear wing, so those that are dialing in high speed rear grip vs straight line drag will gravitate to a gurney. For the 997.1 and .2 crowd a gurney was a given, especially for the RS. The bottom line will it reduce 5 seconds from your lap times, unlikely. Will it give you another toggle to dial in the car with yes. I still plan to get data but will likely be spring before I can get anything conclusive, unless we have really dry winter! ;) |
991 GT3 Gurney
1. GTeaTree |
Id buy at full price if you find positive results. :bigbye:
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Originally Posted by Jamie@dundonmotorsports
(Post 13730123)
991 GT3 Gurney
1. GTeaTree i am in for a flat black piece for non-rs gt3 |
Gurneys work or they wouldn't be on CUP cars.
Gurneys dont void warranty. With more front down force it makes the car faster. Ive proven that (to myself) on the 997RS. 991RS has plenty of down force but you can run less wing with a Gurney. Im in. |
I would like one too.
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991 GT3 Gurney, Gloss or Matte
1. GTeaTree Matte Carbon Fiber 2. Golfnutintib Matte Carbon Fiber 3. Humberto Roca Matte Carbon Fiber 991 GT3RS 1. Trakcar Matte Carbon Fiber 2. USCTrojan GT4 1. USCTrojan |
Put me down for a Matte Carbon one for the RS and GT4. :D
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Add me for a RS in Matte please.
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Mr. Adair: Matte Carbon RS please
I have been working on my home to coffee shop time, this should give me the added down force I need in the 45mph straightaway between Oak and Elm street... |
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