991.2 GT3 - Colours. Spec. Q+A. etc etc..

[Digga]

FWIW it is interesting to note that the forthcoming, limited edition, track-only 935 will have steel brakes as standard. 380mm front rotors, according to the report in Porsche Post - so the same as a GT3 with PCCB.

[Taffy66]

I woke this morning to a light covering of frost over my fields.This got me thinking to putting some safer tyres on my GT3 over the next six months, as i intend to drive it in all weathers.
The only option i can see are Michelins Pilot 4s which are available in N spec..Anyone else contemplating this as i think its a totally no-brainer from a safety POV.

[hunter 66]

Taffy Early Sunday morning .... wet and 4 degrees .... no problem for Dunlop Sport Maxx 2 , great grip even had a mate driving it like he stole it ( bit worried in passenger seat ) but really great wet weather grip . Not best on track but OK ..
Also drove through a deluge in the summer a lot of big lakes of standing water again no issues at unabated speed ..

[Porsche911R]

Taffy66 said:

I woke this morning to a light covering of frost over my fields.This got me thinking to putting some safer tyres on my GT3 over the next six months, as i intend to drive it in all weathers.
The only option i can see are Michelins Pilot 4s which are available in N spec..Anyone else contemplating this as i think its a totally no-brainer from a safety POV.

prob the best tyre to fit to the car , I am also thinking about fitting a set.

[epom]

hunter 66 said:

Taffy Early Sunday morning .... wet and 4 degrees .... no problem for Dunlop Sport Maxx 2 , great grip even had a mate driving it like he stole it ( bit worried in passenger seat ) but really great wet weather grip . Not best on track but OK ..
Also drove through a deluge in the summer a lot of big lakes of standing water again no issues at unabated speed ..

Don't be a girl, just add an extra dab of oppo

[Porsche911R]

epom said:

Don't be a girl, just add an extra dab of oppo

nice but not when the front lift off the road.

These GT tyres rally don't work at low temps, add in standing water to sub 0oc and they are pretty dangerous.

[paralla]

I drove from London to the Cotswolds and back yesterday. I was keen to take the GT3 but ended up in the Golf R because it saved me a bit of time going to get the GT3 out of the rented garage (about 5 minutes drive from home) before we set off. It was nice and sunny in London.


The weather in The Cotswolds was very British by the time we got there. Not ideal for a GT3 on Cup 2's. Adaptive Cruise Control in the Golf is also much appreciated on motorways.

[Digga]

Porsche911R said:

nice but not when the front lift off the road.

These GT tyres rally don't work at low temps, add in standing water to sub 0oc and they are pretty dangerous.

I do agree.

You can live with the back - mainly by being sensible and realistic with the throttle - but the front can be sketchy and scary.

Standing (or running downhill) water is another thing altogether. I took my car up over the Leek-Buxton A53 last winter, in a fair bit of rain and very low temperatures and the water running down the hill by the Roaches really got it moving about. Once it's aquaplaning, the weight in the rear will follow the camber of the road. You'd think going uphill, with a gentle throttle, in a rear-engined car, would be enough to plant the rear end.

[Cheib]

Taffy66 said:

I woke this morning to a light covering of frost over my fields.This got me thinking to putting some safer tyres on my GT3 over the next six months, as i intend to drive it in all weathers.
The only option i can see are Michelins Pilot 4s which are available in N spec..Anyone else contemplating this as i think its a totally no-brainer from a safety POV.

The Porsche winter wheel and tyre set for the GT3 are on Turbo S wheels. Doesn’t say which tyre manufacturer

Front axle: 9 J x 20 RO 51 with 245/35 R 20 91V M+S tyre,
rear axle: 11 J x 20 RO 59 with 295/30 R 20 97V M+S tyres

[epom]

Porsche911R said:

epom said:

Don't be a girl, just add an extra dab of oppo

nice but not when the front lift off the road.

These GT tyres rally don't work at low temps, add in standing water to sub 0oc and they are pretty dangerous.

Oh I know (well actually I don't) that was said with tongue firmly in cheek

[isaldiri]

Digga said:

FWIW it is interesting to note that the forthcoming, limited edition, track-only 935 will have steel brakes as standard. 380mm front rotors, according to the report in Porsche Post - so the same as a GT3 with PCCB.

PCCB front rotors are 410mm. Also I think one can safely assume the 935 will be running the slotted 380mm Cup rotors, not the standard drilled 380 road car rotor.

[Porsche911R]

isaldiri said:

PCCB front rotors are 410mm. Also I think one can safely assume the 935 will be running the slotted 380mm Cup rotors, not the standard drilled 380 road car rotor.

Porsche really cut corners on brakes you really want the ones off the RSR I looked for them on my Cayman but it was £10k.
every thing is built to a price and Porsche have always put very heavy noddy disks on cars :-(

[isaldiri]

Porsche911R said:

Porsche really cut corners on brakes you really want the ones off the RSR I looked for them on my Cayman but it was £10k.
every thing is built to a price and Porsche have always put very heavy noddy disks on cars :-(

Ok I'll bite. What is so different about the RSR's brakes then? They are going to be standard 380mm (at the time, same as the Cup and GT3 R front) motorsports disc and rather unlikely to cost £10k.

[Porsche911R]

isaldiri said:

Ok I'll bite. What is so different about the RSR's brakes then? They are going to be standard 380mm (at the time, same as the Cup and GT3 R front) motorsports disc and rather unlikely to cost £10k.

RSR is nothing like the cup cars nor is the price of the 2 cars.

RSR use the AP radi-cal one piece calipers and 2 piece 390mm disks.

To fit those to a Cayman is about £10k all round and about the same weight as a PCCB setup.

The new brembo on a GT3 weigh a ton, you cannot change pads unless you strip them down, hey have those daft ceramic pucks which snap and the disks are like cheese. Hence a lot of people fit Alcon units.

Edited by Porsche911R on Monday 29th October 21:47

[Shiverman]

paralla said:

I drove from London to the Cotswolds and back yesterday. I was keen to take the GT3 but ended up in the Golf R because it saved me a bit of time going to get the GT3 out of the rented garage (about 5 minutes drive from home) before we set off. It was nice and sunny in London.


The weather in The Cotswolds was very British by the time we got there. Not ideal for a GT3 on Cup 2's. Adaptive Cruise Control in the Golf is also much appreciated on motorways.

Recently bought a Golf R too and have to say it’s a great car to sit alongside the GT3. And you’re right the adaptive cruise and lane departure are appreciated on the motorways.

[isaldiri]

Porsche911R said:

RSR is nothing like the cup cars nor is the price of the 2 cars.

RSR use the AP radi-cal one piece calipers and 2 piece 390mm disks.

To fit those to a Cayman is about £10k all round and about the same weight as a PCCB setup.

Ok so you're talking about the current RSR. Yes the cost of the RSR is much higher than the Cup but I bet that doesn't extrapolate to same cost of brake consumables. A racing brake disc isn't so different from another one after all.

[hunter 66]

Proton who Yellow , has spent a bit of time with .... life every component in extremis , hence sure even the latest RSR would get new discs and pas every meeting . RSR models have steadily become much more specific race cars but the big change was with even the first 991 RSR and the current one has moved that on , but they only make 10-15 or so cars , with only 3-4 customer car teams globally . Back in 996 times hundreds were made..

[isaldiri]

hunter 66 said:

Proton who Yellow , has spent a bit of time with .... life every component in extremis , hence sure even the latest RSR would get new discs and pas every meeting . RSR models have steadily become much more specific race cars but the big change was with even the first 991 RSR and the current one has moved that on , but they only make 10-15 or so cars , with only 3-4 customer car teams globally . Back in 996 times hundreds were made..

That's a function of racing classes becoming very specialised I guess. The old RSR in the 2000s was probably more like something in between a GT3 class car or Cup today. GTE ie the RSR today costs an absolute fortune to run for example and already did in the 997 RSR iirc (which was effectively a GT3 class car as it ran in the Nurburgring 24h).

[hunter 66]

Yes the 996 cars were GTN so before the GT3 class was formed by Ratel , at 997 RSR they became the GTE or GT2 as called then . And GT3 were modified Cups and the Cup S ... and so the spend has rocketed .....
We have run/raced 964 RSR , 993 RSR , 996 GT3 RS and 997 RSR,s all use 380mm steel brakes and Brembo callipers ..

[APOLO1]

Porsche911R said:

hey have those daft ceramic pucks which snap and the disks are like cheese. Hence a lot of people fit Alcon units.

Edited by Porsche911R on Monday 29th October 21:47

Not sure I would agree on the CCBDs, Post Aug 13. These have the ceramic coating on them. They spent a fortune to develop these for use across VAG group. If you can be bothered to do cool down laps you will get around 40 Track days from them. Zero Probs with them based on my own experience of use over lots of cars tracked.