Another set of videos of the Spyder
https://www.auto-motor-und-sport.de/video/porsche-718-boxster-2018-spyder-im-video/
https://www.auto-motor-und-sport.de/video/porsche-718-boxster-2018-spyder-im-video/
Cayman GT4: Where are we up 2 now? Déjà vu Edition
- Thread starter ralphmusic
- Start date
Whilst we wait and speculate, here is how a GT4RS might look...
The usual duff recordings..! Not much more to be gained there other than a 6-cylinder motor and almost certainly n/a.
At the moment the emphasis appears to be on the Spyder. It would be good to see some GT4s - both road and race cars - out there now the weather's improving, but maybe the Spyder's going to be released in advance of the GT4?
Jeff
At the moment the emphasis appears to be on the Spyder. It would be good to see some GT4s - both road and race cars - out there now the weather's improving, but maybe the Spyder's going to be released in advance of the GT4?
Jeff
Brian_Innes
Member
Thanks Ralph.
That camouflaged GT4 looks very interesting...............wider rear wheels signify a brutish power plant.
Brian
That camouflaged GT4 looks very interesting...............wider rear wheels signify a brutish power plant.
Brian
The GT4CS doesn't sound as good as the 911 RSR [8D]
https://www.instagram.com...-by=little_rebel_woman
https://www.instagram.com...-by=little_rebel_woman
Brian_Innes
Member
As a Porsche enthusiast and motorsport fan, I'm very intrigued by all the spy shots and accompanying speculation on the respective engines likely to be considered for the new GT4, Spyder, and as a long shot, a possible 718 Cayman R.
Whether Porsche would commit to launching both a flat-6 n/a 4.0 982 GT4 and Spyder, and a flat-4t 718 Cayman R in the same year is a very moot point. The spy shot Ralph posted a link to of the camouflaged Cayman could possibly be a test mule 718 Cayman R in the final stages of development. Somehow it looked too conservative for a GT4 evolution.
Although it would suit me personally, I am very doubtful that the 3.0t flat-6 from the Carrera would fit into the 982 Cayman engine bay. There is just insufficient space widthwise in my opinion. It would mean widening the rear end of the Cayman to 911 proportions. That would completely spoil the Cayman and the Spyder body shapes.
It is just possible that Porsche will enlarge the 718 Cayman GTS flat-4t to 2.8, and reintroduce the Cayman R as a sign-off model for the petrol powered entry level sports coupe. That would provide the best of both worlds, giving the flat-6 n/a 4.0 enthusiasts a GT4, and 718 aspirational owners like myself, the prospect of 2.8 flat-4 turbo CR. As to exactly how Porsche would place the respective power outputs of these two models is also a moot point. I would say most flat-6 n/a enthusiasts would go for sound over ultimate power and torque and choose the flat-6 GT4 or Spyder. That's absolutely fine by me.
Me? I would go for flat-4t 2.8 Cayman R PDK and have lots of fun chasing GT4's and Spyder's around the tracks on track days. Hopefully, Porsche will consider that there is a market for both configurations.
Brian
Whether Porsche would commit to launching both a flat-6 n/a 4.0 982 GT4 and Spyder, and a flat-4t 718 Cayman R in the same year is a very moot point. The spy shot Ralph posted a link to of the camouflaged Cayman could possibly be a test mule 718 Cayman R in the final stages of development. Somehow it looked too conservative for a GT4 evolution.
Although it would suit me personally, I am very doubtful that the 3.0t flat-6 from the Carrera would fit into the 982 Cayman engine bay. There is just insufficient space widthwise in my opinion. It would mean widening the rear end of the Cayman to 911 proportions. That would completely spoil the Cayman and the Spyder body shapes.
It is just possible that Porsche will enlarge the 718 Cayman GTS flat-4t to 2.8, and reintroduce the Cayman R as a sign-off model for the petrol powered entry level sports coupe. That would provide the best of both worlds, giving the flat-6 n/a 4.0 enthusiasts a GT4, and 718 aspirational owners like myself, the prospect of 2.8 flat-4 turbo CR. As to exactly how Porsche would place the respective power outputs of these two models is also a moot point. I would say most flat-6 n/a enthusiasts would go for sound over ultimate power and torque and choose the flat-6 GT4 or Spyder. That's absolutely fine by me.
Me? I would go for flat-4t 2.8 Cayman R PDK and have lots of fun chasing GT4's and Spyder's around the tracks on track days. Hopefully, Porsche will consider that there is a market for both configurations.
Brian
BJ Innes said:
Brian,
I think the wheel and tyres are the same widths as now. If you look at the two pictures I posted above of the Clubsport they are the same. Even mine below (white Cayman front of queue) are flush with the external face of the bodywork (245 & 295 on 8.5" and 11.0" wheels with suitable offset.)
Regarding timing of the GT3 and GT4 race versions, a quote from PMNA President..
"A timeline for the rollout of the new GT3 and GT4-spec models is still being determined, although both are expected to debut next January at Daytona, following end-of-year test races in Europe. Right now, it isn’t published yet when we will launch the car, but we are still planning for it to be this year,” Armbruster said. “If you want to run in Daytona, you have to [be ready]. We are still in planning but starting to discuss with teams about the concept." “My intention is to use this year to define more precisely our ecosystem so it’s more visible and understandable for our customers.” - - - PMNA President and CEO, Dr. Daniel Armbruster, March 28th, 2018
A USA race team owner has said they will be released to teams just before "The Roar" event at Daytona so I guess that is a good cross reference.
Ralph
Brian,
The camo car is the GT4 Clubsport, with a 4.0ltr NA engine all but confirmed.
I'm pretty sure there won't be a 718 Cayman R. There have been no credible rumours, other than a couple of random suggestions of one on forums, so the car you (and pretty much only you!) is hoping for is unlikely to appear.
The camo car is the GT4 Clubsport, with a 4.0ltr NA engine all but confirmed.
I'm pretty sure there won't be a 718 Cayman R. There have been no credible rumours, other than a couple of random suggestions of one on forums, so the car you (and pretty much only you!) is hoping for is unlikely to appear.
Great minds...
Question: Why would Porsche revert to a flat six when it has gone down the flat four turbo route?
The new models could be electric, that would scupper all of this conjecture. Funny old world we live in.
Personally I wouldn't tax my brain too much on what type of engine configuration Porsche will be using in it's new vehicles. Whatever they decide to use it will be Porsche.
Ray
The new models could be electric, that would scupper all of this conjecture. Funny old world we live in.
Personally I wouldn't tax my brain too much on what type of engine configuration Porsche will be using in it's new vehicles. Whatever they decide to use it will be Porsche.
Ray
A flat-4 CR would be very interesting - and sensationally fast I would guess D from your 718 CS appraisal - but I can't quite see how it would fit into the Cayman range. Although it's not as focused, I think that the GTS has now superceded the R in Porsche's eyes.
On topic, the GT4CS and 911 RSR video I think confirms - if indeed any confirmation was necessary - that the 982 GT4 definitely won't have a detuned GT3 engine and also it sounds to me as though the GT4 is still running long gearing. The video spans several laps (?) and it's interesting to note that the GT4 doesn't appear to be giving away much to the RSR, assuming that both drivers were pedalling hard.
Jeff
On topic, the GT4CS and 911 RSR video I think confirms - if indeed any confirmation was necessary - that the 982 GT4 definitely won't have a detuned GT3 engine and also it sounds to me as though the GT4 is still running long gearing. The video spans several laps (?) and it's interesting to note that the GT4 doesn't appear to be giving away much to the RSR, assuming that both drivers were pedalling hard.
Jeff
Steve Brookes
Moderator
I still don't think we can tell from any of those clips from Monza what engine the GT4 is going to get but they are great to watch. Those test drivers really do give them some welly! [
]
Here are a couple of links that Ralph posted up on PH:
2018 clubsport at Monza: https://www.youtube.com/watch?v=fySDs45ECFc&feature=youtu.be
2015 version at Monza: https://www.youtube.com/watch?v=WsKNGQCu_to
]Here are a couple of links that Ralph posted up on PH:
2018 clubsport at Monza: https://www.youtube.com/watch?v=fySDs45ECFc&feature=youtu.be
2015 version at Monza: https://www.youtube.com/watch?v=WsKNGQCu_to
Yes, I'd seen those on my occasional jaunt over to PH where I note that they're in their usual tizzy on the subject.
To my ears they're both 6-cylinder n/a, the slight tonal difference probably being down to different exhausts, with that new rear diffuser maybe adding to the sound mix. If the new engine is a (stroked) 4.0-litre version of the 3.8-litre I would expect the rev limit to be set slightly lower - as was the case for the GT3 - owing to higher piston speeds/inertial forces.
The change points on the tight right-left S-bend look to be very similar for both cars, so I'd guess very similar gearing.
Jeff
To my ears they're both 6-cylinder n/a, the slight tonal difference probably being down to different exhausts, with that new rear diffuser maybe adding to the sound mix. If the new engine is a (stroked) 4.0-litre version of the 3.8-litre I would expect the rev limit to be set slightly lower - as was the case for the GT3 - owing to higher piston speeds/inertial forces.
The change points on the tight right-left S-bend look to be very similar for both cars, so I'd guess very similar gearing.
Jeff
Given 4.0L Caymans are not that unusual (in the USA) I thought I would revisit Deman Motorsports GT4 upgrades page. Below is their Dyno plot of their 4.0L v stock GT4.
This shows at 4k revs the 4.0L producing 305ft/lb v stock 250ft/lb - 4k revs is quite a useful point to have 20% more torque and engine revs do not seem to be restricted by the longer stroke. Relating this to the various videos, perhaps the optimum driving style is to use the extra torque exiting corners and revs and extra power thereafter. Also, gearing ratio spacing issues, real or perceived are reduced by the meatier torque band.
This shows at 4k revs the 4.0L producing 305ft/lb v stock 250ft/lb - 4k revs is quite a useful point to have 20% more torque and engine revs do not seem to be restricted by the longer stroke. Relating this to the various videos, perhaps the optimum driving style is to use the extra torque exiting corners and revs and extra power thereafter. Also, gearing ratio spacing issues, real or perceived are reduced by the meatier torque band.
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