Prospective 981 GT4 Owners Discussion Forum.
Discussion
turbofreeFLAT6 said:
Has anyone felt the extent of the weight saving benefit of PCCB vs steel by comparing the handling (especially bump control) and steering feel and response of each system on the same model car? I'm confirmed for a GT4 by my dealer and intend to use it mainly on road (I live in the French Alps where there there are plenty of good roads but no race circuits). I assume Porsche has set up the suspension to work well with the standard brakes but if PCCB could transform the handling and steering from great to legendary maybe it would be worth the exorbitant extra cost.
The 5k upgrade price is a relative bargain considering they're essentially the same as on the GT3..... However just wait until it comes time to replace them.... I struggle to justify that much money for brakes, makes the 5k initial cost look like a bargain!apachesmith said:
turbofreeFLAT6 said:
Has anyone felt the extent of the weight saving benefit of PCCB vs steel by comparing the handling (especially bump control) and steering feel and response of each system on the same model car? I'm confirmed for a GT4 by my dealer and intend to use it mainly on road (I live in the French Alps where there there are plenty of good roads but no race circuits). I assume Porsche has set up the suspension to work well with the standard brakes but if PCCB could transform the handling and steering from great to legendary maybe it would be worth the exorbitant extra cost.
The 5k upgrade price is a relative bargain considering. Those essentially the same as on the GT3..... However just wait until it comes time to replace them.... I struggle to justify that much money for brakes, makes the 5k initial cost look like a bargain!My GT4 will be primarily for road use with a few track days a year. At the moment i've gone with steels particularly as I've heard track days will wear PCCB's down in no time. More so then steel.
Robbo66 said:
As I said before, I'd prefer to mine coal than work in an OPC, and deal with the swivel eyed LOI lot trotting in to waste more of my time..... horrendous.
I know he's not my mate and vice versa . I'm good for him . Regular buyer that makes quick decisions and gives them zero grief . Not sure what his commision is but I've had 4 cars from him personally worth nearly £300k since August . ( anyone know there commission ? )
He's good for me as I've not lost a penny on any car Ive purchased from them to date . He knows I only buy smart and he doesn't bother trying to sell me anything that will lose me anything significant . That's not because I'm a speculator , it's because I'm a bloke who doesn't really earn enough to be be driving a 991 GT3 . I have to buy smart to be in the game .
He knows Im not going to buy a £300k GT2 RS or a £150k 991 Turbo but that doesn't stop them ringing me to come in and have a go . The relationship works for me .
I've no doubt there'll be a time I'm dropped like a sack of s--t, but im not that fussed . I've had some great cars , driven some cars id never otherwise get the chance to . Silve stone passes , Geneva passes + All of the enjoyment of the cars and decent chunk financially up on the deal .
Why anyone thinks this is a weird set up is beyond me .......
Edited by GT3cs on Tuesday 24th February 18:47
Amathus said:
Forgive my ignorance but would someone mind please explaining the pros/cons of PCCB's vs Steel - particularly from a Porsche perspective. I've never sampled PCCB's but i hear a lot of praise about it's 'feel' so keen to understand the differences.
My GT4 will be primarily for road use with a few track days a year. At the moment i've gone with steels particularly as I've heard track days will wear PCCB's down in no time. More so then steel.
Pro PCCB:My GT4 will be primarily for road use with a few track days a year. At the moment i've gone with steels particularly as I've heard track days will wear PCCB's down in no time. More so then steel.
Better braking performance = shorter stopping distances
Much less fade after heavy (track) use
Lower weight - which is unsprung weight so has a significant improvement on handling / feel.
Much less brake dust meaning cleaner wheels
They are huge and look very cool
Yellow callipers show everybody in the know that you know too!
Cons PCCB:
Initial cost higher
Replacement/repair costs also higher
They can tend to squeal if just used as a daily driver
They are sensitive to damage from wheel cleaning fluids
Edited by AdamV12V on Tuesday 24th February 19:16
AdamV12V said:
Pro PCCB:
Better braking performance = shorter stopping distances
...
At risk of sounding like a stuck record as it has been said previously here before..... braking distances are going to be tyre limited and not brake limited on road cars.Better braking performance = shorter stopping distances
...
Sportauto recent comparison with a 991 C2S with iron brakes vs a 991 GTS with ceramics, both on identical Pirelli tyres had the GTS record worse braking distances than the iron brake C2S.
AdamV12V said:
Pro PCCB:
Better braking performance = shorter stopping distances
Much less fade after heavy (track) use
Lower weight - which is unsprung weight so has a significant improvement on handling / feel.
Much less brake dust meaning cleaner wheels
They are huge and look very cool
Yellow callipers show everybody in the know that you know too!
Cons PCCB:
Initial cost higher
Replacement/repair costs also higher
They can tend to squeal if just used as a daily driver
They are sensitive to damage from wheel cleaning fluids
Another Pro - no rust or pads stuck to disks if you leave the car unused for ages.Better braking performance = shorter stopping distances
Much less fade after heavy (track) use
Lower weight - which is unsprung weight so has a significant improvement on handling / feel.
Much less brake dust meaning cleaner wheels
They are huge and look very cool
Yellow callipers show everybody in the know that you know too!
Cons PCCB:
Initial cost higher
Replacement/repair costs also higher
They can tend to squeal if just used as a daily driver
They are sensitive to damage from wheel cleaning fluids
Edited by AdamV12V on Tuesday 24th February 19:16
Personally I've never had any squealing with daily use on 2 different cars
cc3 said:
Will anyone be setting the ride height say 10mm higher to avoid speed hump damage?
I think it's been mentioned on here before that the front overhang height will be the issue. My opc had to come back to me on this.Mine won't be out everyday, but it'll have to be driven as more than a weekender, so fingers crossed the ride height/firmness won't be too much of a compromise.
I'm actually quite content to wait for a 2016 car to see how this pans out.The spyder might end up being the better all round car,lacking a roof it's bound to have a softer setup.
When the hype settles, dare I say it, the R could be the sweet spot-for British roads anyway-the gt4 is bound to be the business on track . Hopefully my worries prove to be entirely unfounded!!
I heard from PCNA that 125 918 customers in NA exercised the option to get a GT4.
Seems Porsche are reviewing production volume in light of demand and final allocations/confirmation of build slots to happen end of Feb/beginning of March.
Not sure if that has a bearing on the UK but I'm sure many 918 customers would have exercised the option, even if it to flip the car after a while knowing demand will be high.
Seems Porsche are reviewing production volume in light of demand and final allocations/confirmation of build slots to happen end of Feb/beginning of March.
Not sure if that has a bearing on the UK but I'm sure many 918 customers would have exercised the option, even if it to flip the car after a while knowing demand will be high.
V8KSN said:
Are you getting one then?
Would make a nice 'toy' next to the GT3
I hope so but, as we all know, there's only two things certain in this world and a GT4 is not one of them! Would make a nice 'toy' next to the GT3
I ditched the 991 after a major falling out with the local OPC but still enjoying my 997. The GT4 would be a daily driver with the GT3 as my fair weather car
I can't wait to see the car at Geneva.
turbofreeFLAT6 said:
Has anyone felt the extent of the weight saving benefit of PCCB vs steel by comparing the handling (especially bump control) and steering feel and response of each system on the same model car? I'm confirmed for a GT4 by my dealer and intend to use it mainly on road (I live in the French Alps where there there are plenty of good roads but no race circuits). I assume Porsche has set up the suspension to work well with the standard brakes but if PCCB could transform the handling and steering from great to legendary maybe it would be worth the exorbitant extra cost.
The difference is noticeable but not massive. There is less inertia through the wheel on turn-in and it takes some of the rough edges off some of the nastier bumps. From the 7.2 onward, the steels on GT3s were composite items reducing the weight difference versus ceramics. Don't know whether the GT4 comes with steel composites though.AdamV12V said:
Amathus said:
Forgive my ignorance but would someone mind please explaining the pros/cons of PCCB's vs Steel - particularly from a Porsche perspective. I've never sampled PCCB's but i hear a lot of praise about it's 'feel' so keen to understand the differences.
My GT4 will be primarily for road use with a few track days a year. At the moment i've gone with steels particularly as I've heard track days will wear PCCB's down in no time. More so then steel.
Pro PCCB:My GT4 will be primarily for road use with a few track days a year. At the moment i've gone with steels particularly as I've heard track days will wear PCCB's down in no time. More so then steel.
Better braking performance = shorter stopping distances
Just press play... This should wet the GT4 appetite for a bit longer... http://porsche.gomexlive.com
looks great in red.
from the article:
We already know how the sportscar is going to look like and all the technical specifications but it was not spotted in all its glory until janb_photography got lucky enough to spot this sportscar resting near the Porsche factory in Zuffenhausen. This Porsche Cayman GT4 is finished in a special Carmine Red color.
6 pictures in the gallery
.
from the article:
We already know how the sportscar is going to look like and all the technical specifications but it was not spotted in all its glory until janb_photography got lucky enough to spot this sportscar resting near the Porsche factory in Zuffenhausen. This Porsche Cayman GT4 is finished in a special Carmine Red color.
6 pictures in the gallery
.
isaldiri said:
At risk of sounding like a stuck record as it has been said previously here before..... braking distances are going to be tyre limited and not brake limited on road cars.
Sportauto recent comparison with a 991 C2S with iron brakes vs a 991 GTS with ceramics, both on identical Pirelli tyres had the GTS record worse braking distances than the iron brake C2S.
but if they repeated the test 20 times in row, the CCBDS would stop sooner, the new CCBDs have the similar coating that is on the P1, they no longer hold the heat, over 20 track days plus V-max on my RHD GT3, still on original pads just over 50% worn....Sportauto recent comparison with a 991 C2S with iron brakes vs a 991 GTS with ceramics, both on identical Pirelli tyres had the GTS record worse braking distances than the iron brake C2S.
Dr S said:
turbofreeFLAT6 said:
Has anyone felt the extent of the weight saving benefit of PCCB vs steel by comparing the handling (especially bump control) and steering feel and response of each system on the same model car? I'm confirmed for a GT4 by my dealer and intend to use it mainly on road (I live in the French Alps where there there are plenty of good roads but no race circuits). I assume Porsche has set up the suspension to work well with the standard brakes but if PCCB could transform the handling and steering from great to legendary maybe it would be worth the exorbitant extra cost.
The difference is noticeable but not massive. There is less inertia through the wheel on turn-in and it takes some of the rough edges off some of the nastier bumps. From the 7.2 onward, the steels on GT3s were composite items reducing the weight difference versus ceramics. Don't know whether the GT4 comes with steel composites though.Gassing Station | Porsche General | Top of Page | What's New | My Stuff