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    Re: Porsche Cayman GT4 RS

    SciFrog:

    HondaJet has engines on top...

    Correct. That is why I mentioned that they are "generally" mounted under ;-)

    For aircraft like the hondajet, lift is not the main consideration though. Important items are cabin space, max speed and range. The cabin space is increased by moving the engines from the aft fuselage (like on for example the gulfstream). But mounting the engines under the wing would require for a very long undercarriage, so having them on top is a nice (albeit oddly-looking) compromise.
    Max speed and range are not too much influenced by the position of the engines.


    --


    Porsche, separates Le Mans from Le Boys


    Re: Porsche Cayman GT4 RS

    Joost:

    Long story short:
    The convex surface of an aerofoil produces roughly 2 thirds of the lift/downforce, the concave shape only one third.

    That is why with normal aeroplanes, the engines are traditionally mounted on the underside of the wing (amongst other reasons).

    Now with wings on sportscars, they are inversed, so as not to give lift, but downforce. So, the convex surface is on the underside. It is the convex surface that you want to disturb the least, so that is why manufacturers looked for a way to have the attachments on the concave surface, the top side of the wing.

    The swan necks will result in a bit more drag than traditional mounts, but since the main goal is downforce, this is often considered a worthy tradeoff.

     

    I asked at Weissach why the top mounted wing on the RSR vs the bottom mounted wing on the new GT3R

    Top mounted wing has less structural integrity, they flex more. 

    The difference being the RSR has a efferent mounting points for the top mounted wing because of the mid engine layout.

    Works better for it than the GT3R with the bottom mounted wing.The downward pressure from the wing is applied at a different point on the chassis, so different results.

     

     


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    Re: Porsche Cayman GT4 RS

    As for the title of this tread, I saw the car, it isn't confirmed or denied. All based on market acceptance. 

    But I can say it is a bad assed car, pretty much the very best out of Weissach for a since a long while, and that already included the GT2RS. 

    It's not about he ultimate fastest lap time, but more about the car itself.


    --

     

     


    Re: Porsche Cayman GT4 RS

    Pretty strong endorsement...


    Re: Porsche Cayman GT4 RS

    Thanks Whoopsy. Any thoughts on production level / availability of the regular GT4?

     


    Re: Porsche Cayman GT4 RS

    KMM:

    Thanks Whoopsy. Any thoughts on production level / availability of the regular GT4?

     

    Whoopy has taken my 10k deposit, bud. All gone Smiley Smiley..


    --

    throt

    "I Have Done It!".

    991 GT3 pick up in October 2014.

    991 GT3.2 pick up April/May 2018. ( Hairy Chest Spec ).

    Vauxhall Zafira 1.6 Exclusive pick up June 2013. ( Shit Box )

    Rennteam Hairy Chest Advisor.


    Re: Porsche Cayman GT4 RS

    That means 6 cylinders for sure :P


    Re: Porsche Cayman GT4 RS

    I think we all agree to that indecision


    --

    2017 991.2 Carrera 4 GTS | GT Silver Metallic - The GT3 Killah!
    2013 Audi S3 | Glacier White


    Re: Porsche Cayman GT4 RS

    bluelines:

    I think we all agree to that indecision

    Do you miss your GT4, buddy Smiley..


    --

    throt

    "I Have Done It!".

    991 GT3 pick up in October 2014.

    991 GT3.2 pick up April/May 2018. ( Hairy Chest Spec ).

    Vauxhall Zafira 1.6 Exclusive pick up June 2013. ( Shit Box )

    Rennteam Hairy Chest Advisor.


    Re: Porsche Cayman GT4 RS

    No indecision


    --

    2017 991.2 Carrera 4 GTS | GT Silver Metallic - The GT3 Killah!
    2013 Audi S3 | Glacier White


    Re: Porsche Cayman GT4 RS

    bluelines:

    No indecision

    Smiley Smiley....


    --

    throt

    "I Have Done It!".

    991 GT3 pick up in October 2014.

    991 GT3.2 pick up April/May 2018. ( Hairy Chest Spec ).

    Vauxhall Zafira 1.6 Exclusive pick up June 2013. ( Shit Box )

    Rennteam Hairy Chest Advisor.


    Re: Porsche Cayman GT4 RS

    throt:
    bluelines:

    No indecision

    Smiley Smiley....

    He's got other priorities .... skoda 

    skoda-pram-4-600x450.jpg


    --

     964 Carrera 4 --  997.2 C2S , -20mm --  991 GT3 RS 


    Re: Porsche Cayman GT4 RS


    --

    2017 991.2 Carrera 4 GTS | GT Silver Metallic - The GT3 Killah!
    2013 Audi S3 | Glacier White


    Re: Porsche Cayman GT4 RS

    Enzo II:

    That means 6 cylinders for sure :P

     

    9k redline. More than the regular twins with manual box.


    --

     

     


    Re: Porsche Cayman GT4 RS

    No PDK ?


    Re: Porsche Cayman GT4 RS

    Whoopsy:
    Enzo II:

    That means 6 cylinders for sure :P

     

    9k redline. More than the regular twins with manual box.

    Smiley

     

     


    Re: Porsche Cayman GT4 RS

    rear-wheel steering??

     

     

    E619D4B9-9C7D-4375-B9C7-3EB3F1031260.jpeg
    DC08C491-C235-4D48-A6AD-550789B169C7.jpeg
    48D00205-CA92-4E57-818B-709829CC7B04.jpeg


     
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