718 Cayman GT4 is here – at long last.!
- Thread starter Motorhead
- Start date
The GT4 has been out for a while now - and UK deliveries started well before Christmas - so I'm surprised that there haven't been any road test reports from the UK mags yet.
However, that position looks to be changing very soon as I note that PH say that a 718 GT4 will be arriving at their HQ very soon:
https://www.pistonheads.com/news/ph-spottedykywt/porsche-cayman-gt4---spotted/41723
The article references an interesting 981 GT4 for sale at JZM which has a Sharkwerks revised ratio gearbox as well as some track-oriented suspension and brake upgrades.
Jeff
However, that position looks to be changing very soon as I note that PH say that a 718 GT4 will be arriving at their HQ very soon:
https://www.pistonheads.com/news/ph-spottedykywt/porsche-cayman-gt4---spotted/41723
The article references an interesting 981 GT4 for sale at JZM which has a Sharkwerks revised ratio gearbox as well as some track-oriented suspension and brake upgrades.
Jeff
Brian_Innes
Member
For me, in the fullness of time it would also be interesting to see a comparative road and track test between a 2020 982 Cayman GTS 4.0 PDK with the run-out 2019 718 Cayman GTS 2.5t PDK. Preferably on identical wheel/tyre/suspension specs.
Thanks to David for posting the video. I must say, the choice between a 992 Carrera PDK and 982 GT4 4.0 manual is hardly a fair comparison. They are completely different cars built for entirely different purposes, and aimed at a completely different market sector. It's pretty meaningless really, apart from the opinion of the vlogger on driving the new GT4 4.0. Naturally, no prizes for guessing which car came out best. The yellow 982 GT4 test car in the video looks and sounds amazing.
For the future, I'm looking forward to reading the forensic road test of the GT4 4.0 6 speed manual as done by Autocar magazine.
I'm only disappointed that for some reason Autocar have never published a forensic road test of a PDK version of the Cayman 2.5t GTS. I'm sure it would make interesting reading. For me anyway........
Brian
Thanks to David for posting the video. I must say, the choice between a 992 Carrera PDK and 982 GT4 4.0 manual is hardly a fair comparison. They are completely different cars built for entirely different purposes, and aimed at a completely different market sector. It's pretty meaningless really, apart from the opinion of the vlogger on driving the new GT4 4.0. Naturally, no prizes for guessing which car came out best. The yellow 982 GT4 test car in the video looks and sounds amazing.
For the future, I'm looking forward to reading the forensic road test of the GT4 4.0 6 speed manual as done by Autocar magazine.
I'm only disappointed that for some reason Autocar have never published a forensic road test of a PDK version of the Cayman 2.5t GTS. I'm sure it would make interesting reading. For me anyway........
Brian
Brian_Innes said:
That would be a bit of a pointless test really, Brian. They both have the same chassis, bar the brake upgrade on the 4.0, so the only difference is the engine. As we already know, they have very different characteristics with wins in different areas. I can give you the result now:
"The 2.5T GTS is slightly quicker in the real world due to the increased low down torque from the turbo power delivery, but in all other ways the 4.0 GTS is a thing of wonder. Bravo Porsche for bringing back the NA F6!".
Unlike for a race car, outright speed isn't always the most important thing in a road car. It's about a lot of other things too and the new 4.0 GTS really hits the mark. The press are going to love it.
Brian_Innes
Member
Thanks for that David.
Seems I'm the only one posting to lament the passing of the 718 Cayman 2.5t GTS PDK. My car is a thing of wonder and I guess that is all that matters. RIP 2.5t GTS.
Brian
Seems I'm the only one posting to lament the passing of the 718 Cayman 2.5t GTS PDK. My car is a thing of wonder and I guess that is all that matters. RIP 2.5t GTS.
Brian
We're all fans of different things, and like you I'm in the minority in some areas. For example, I don't have the least bit of interest in anything old - be it cars, watches, houses, antiques etc. It's just knackered old stuff to me.
Given that most of the Porsche scene is about getting dewy eyed at some rattly old tin can based motor cars, I'll get my coat...
Given that most of the Porsche scene is about getting dewy eyed at some rattly old tin can based motor cars, I'll get my coat...
Brian_Innes
Member
Quite so Dave......
MrDemon said:
I am not sure the 420Nm number is other than an OEM marketing/procurement warranty specification level. In the USA owners are running on track BGB, DeMan and others's built 3.8L, 4.0L and 4.25L engines with torque greater than stock and are not having any gearbox failures. Doesn't help unless one is prepared to modify a car as I did but at the end of the day, the GT4's market differentiation is the chassis, not the drive train.
ralphmusic said:
oem for oem the car is torque limited, is what it is, may as well be a 3.8 !
4.0 is a headline figure for pub talk as it stands atm with a high CO2 figure, Chris W 3.8 is a faster car with the torque limit removed.
We all wanted the 3.8 X51 and it never happen, the 4.0 did not make it into the race car they had a x51 3.8 !
The 4.0 seems to have a greater spread of torque and a revvier top end than the old 3.8. I don't believe you have you driven the 4.0 yet, so maybe Ralph can comment more on their differences and whether the 4.0 is "worth it"?
I'm driving the 718 GT4 next week so I'll have first hand experience myself after that.
I'm driving the 718 GT4 next week so I'll have first hand experience myself after that.
Twinfan said:
Nowhere as good as a 3.8L with PDK
It will be interesting to compare my 991.1 GTS to the 718 GT4 at PEC in a few weeks. The engine in the GTS is fantastic and the noise superb with more bhp. So the GT4 will have to be good. !
I have faith in new technology from Porsche though
I don't get all this low emissions crap as the emissions are higher on the GT4 than on my 2015 911 GTS
I have faith in new technology from Porsche though
I don't get all this low emissions crap as the emissions are higher on the GT4 than on my 2015 911 GTS
Twinfan said:Should have saved your money then, Ralph! [
Ho ho, unfortunately I have that image as the desktop on one of the computers and it is all rather bitter sweet when I stare at it recalling the 5 year journey with that car. But to respond to your point about GT4 3.8 v GT4 4.0.....
Aside from ECU mapping, the 3.8 GT4 suffered from intake restrictions which constrained top end power, together with different physical intake and exhaust lengths and layout compared with the 911 installation. Fitting the 911 3.8 throttle body, a better intake plenum, and a freer flowing exhaust system overcame these physical constraints. Coupled with an ECU optimised to run the new air pump configuration and unconstrained by the need to manage model hierarchy, significantly more power could be developed.
It always seemed to me that the main difference between my car and a 3.8L GT4 was top end where the GT4 ran out of enthusiasm about about 6k revs whereas mine just whipped up to the red line.
The 4.0L GT4 I drove at PEC (the Goodwood hill climb German registered car) was enthusiastic all the way to 8k so test the top end when you are there, you'll also enjoy a good range of torque.
Cheers Ralph, I'm looking forward to it!
Like you point out, both times I've driven the 981 GT4 at PEC it's really obvious that the engine is substantially hamstrung. I'm hoping that although the power is similar in the new 4.0 they've managed to remove that restrictive feeling. It certainly seems a lot better from what you and the journos are saying.
Like you point out, both times I've driven the 981 GT4 at PEC it's really obvious that the engine is substantially hamstrung. I'm hoping that although the power is similar in the new 4.0 they've managed to remove that restrictive feeling. It certainly seems a lot better from what you and the journos are saying.
peterhunsley said:It will be interesting to compare my 991.1 GTS to the 718 GT4 at PEC in a few weeks. The engine in the GTS is fantastic and the noise superb with more bhp. So the GT4 will have to be good. !
I have faith in new technology from Porsche though
I don't get all this low emissions crap as the emissions are higher on the GT4 than on my 2015 911 GTS
Peter,
I doubt that the 982 GT4 will be as sonorous as your GTS given that the GPFs have a detrimental effect on exhaust noise.
From what Ralph says, the new engine appears to have addressed to some extent the failings of the 3.8L engine in the 981 GT4, but whether or not it matches that in your 991.1 GTS is something only you can decide when you drive the car at the PEC. And anyway, it's too late to change your mind now.! It does seem odd to me that Porsche offer a PEC evaluation after the spec has been locked-down (or even worse, after delivery!) when it would be an ideal opportunity to tweak the spec if necessary, although I suppose that those getting cars in the next allocation could be able to "try before you buy".
Considering its large capacity, with stop-start, cylinder deactivation and GPFs the new engine is probably just about as clean as Porsche could make it to meet Euro 6 emission standards. I doubt that VAG are too bothered because we're talking small production volumes which will have very little impact on EU fleet-wide vehicle emission targets.
Jeff
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