GT4 RS - any information from OPCs?
- Thread starter Dylan1
- Start date
Yes, I meant to edit the post after I’d looked more carefully at the graphics Dave .. should have gone to Specsavers! 
[In my defence I was viewing the small video version on an iPad]
Having said that it looks as though it’s redlined at about 8,500rpm, although he seems to be encroaching into the red quite regularly. Porsche must have done a lot of work on the bottom end, pistons and conrods to increase the rev range. The engine sounds really good, and maybe they’ve fitted a bespoke transmission with closer ratios … difficult to tell.
It looks as though we’re seeing the next iteration of Porsche’s GT4 race car.
Jeff
[In my defence I was viewing the small video version on an iPad]Having said that it looks as though it’s redlined at about 8,500rpm, although he seems to be encroaching into the red quite regularly. Porsche must have done a lot of work on the bottom end, pistons and conrods to increase the rev range. The engine sounds really good, and maybe they’ve fitted a bespoke transmission with closer ratios … difficult to tell.
It looks as though we’re seeing the next iteration of Porsche’s GT4 race car.
Jeff
JohnCRS said:
It'll be the 4.0 from the current GT4/Spyder with GT3 internals and intake. The bore and stroke of both engines are the same so swapping parts shouldn't be an issue. Therefore it'll be a unique GT3 version of the Cayman 4.0, so essentially a GT3 engine with the correct block and mounting points etc for a mid-engined application.
The fact that the current GT4/Spyder makes power all the way up to redline of 8k leads me to believe it's all been part of the plan for the current 4.0 all along. A basic extrapolation to 9k revs would give 475-ish PS which sounds about right and where I think power output will be.
Jeff - it definitely has shorter gear ratios than the current manual and PDK cars. From the onboard lap you can see that at the 9k redline:
2nd gear tops out at 110kph = 68mph 3rd gear tops out at 150kph = 93mph
So much lower speeds with a 1k higher rev limit. It'll accelerate like a cat on a hot tin roof...
Yes, I’ve now looked at the video on full screen Dave and agree with you that they’re running shorter ratios and probably a different diff; we’ll have to wait and see.
As I said, the engine’s redlined from 8,500rpm so he’s really pushing it … although it only has to last a few laps! [
] If it’s basically a slightly detuned GT3 engine there won’t be a problem, and I wonder if it’s dry-sumped?
A GT3 engine with a bespoke transmission and a limited production run … this is going to be a very expensive car!
Jeff
As I said, the engine’s redlined from 8,500rpm so he’s really pushing it … although it only has to last a few laps! [
] If it’s basically a slightly detuned GT3 engine there won’t be a problem, and I wonder if it’s dry-sumped?A GT3 engine with a bespoke transmission and a limited production run … this is going to be a very expensive car!
Jeff
I guess it depends what you mean by redline Jeff. I count that as where the soft limiter kicks in, which seems to be 9k on the video? That's the same as the GT3 I think.
I think it'll be priced exactly in the middle of the GT4 and GT3 - £107,500-ish base with a Weissach Package and other options on top. So around £125k for a good spec car.
I think it'll be priced exactly in the middle of the GT4 and GT3 - £107,500-ish base with a Weissach Package and other options on top. So around £125k for a good spec car.
Yes, it’s a rather odd display Dave: orange from 8,000 - 8,500rpm and red from 8,500 - 9,000rpm with the soft limiter cutting-in after that. In my book you don’t stray into the red … but then I’m old-school! []
+£30k on the vanilla GT4 sounds about right for a very exclusive car. I wonder how many potential GT3 RS customers are talking to their Centres about making a switch … or more likely wanting both!
Jeff
]+£30k on the vanilla GT4 sounds about right for a very exclusive car. I wonder how many potential GT3 RS customers are talking to their Centres about making a switch … or more likely wanting both!
Jeff
At my OPC the first car is going to an RS collector. Done deal.
If they get a second car it'll be going to a guy I know who will use it as the makers intended and I'd hope to get a passenger ride in it on track sometime.
The question is will they do more than a single run and round of allocations? If so, I've no idea how they'll allocate them as demand will come from both 911 and Cayman camps. I'd like to think the Cayman fans would get priority, but I fear that's wishful thinking!
If they get a second car it'll be going to a guy I know who will use it as the makers intended and I'd hope to get a passenger ride in it on track sometime.
The question is will they do more than a single run and round of allocations? If so, I've no idea how they'll allocate them as demand will come from both 911 and Cayman camps. I'd like to think the Cayman fans would get priority, but I fear that's wishful thinking!
AndrewCS
Active member
So good to see this car released, well done Porsche ... wish they`d show it running on closed mountain roads though
As impressive as it`s expected `ring time is, that of the 718 2.5t GTS is more so
Dave ... if your friend does get one, he`d make the list back giving pax laps
As impressive as it`s expected `ring time is, that of the 718 2.5t GTS is more so
Dave ... if your friend does get one, he`d make the list back giving pax laps
Apart from the technical aspects, I must confess that I can’t generate much enthusiasm for the RS models Dave … just another level of unobtanium for the average Cayman enthusiast I’m afraid (your contact excluded!).
Your guess is as good as mine about a second RS run but if 718 production is set to run for quite a few years then I would think that both GT4 and RS cars will figure in there somewhere, if only to maximise returns on development costs and to pay for a very expensive Porsche BEV programme. Assuming that we’re looking at the basis of the next GT4 Clubsport, I assume that a minimum number of RS cars have to built for homologation purposes.
Jeff
Your guess is as good as mine about a second RS run but if 718 production is set to run for quite a few years then I would think that both GT4 and RS cars will figure in there somewhere, if only to maximise returns on development costs and to pay for a very expensive Porsche BEV programme. Assuming that we’re looking at the basis of the next GT4 Clubsport, I assume that a minimum number of RS cars have to built for homologation purposes.
Jeff
I think the regular GT4 works for homologation, Jeff, as it has done up to now as it's still in production? The current CS has the rear wing, a different engine to the road car etc so I'm not sure they *need* to make the RS to go racing.
I see it as the swan song ICE car for the Cayman platform.
I see it as the swan song ICE car for the Cayman platform.
That’s my take on it as well Dan, given that the BEV replacement is rumoured for 2025, and like the Macan the 718 could be offered in parallel for a while.
As I’ve said before, I’m sure that Porsche will have to bring out a refresh model before then, even if it’s just new front and rear PUs and a mildly revamped interior, including a digital dashboard maybe?
Jeff
As I’ve said before, I’m sure that Porsche will have to bring out a refresh model before then, even if it’s just new front and rear PUs and a mildly revamped interior, including a digital dashboard maybe?
Jeff
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