Rennteam 2.0 - EN - Forum - GT4RS - Page15

Oct 23, 2021 3:13:50 PM

Grant: Rennteam VIP; Loc: Denver, CO , United States; Posts: 12550, Gallery; Registered on: Aug 21, 2002; Reply to: the-missile

Re: GT4RS

the-missile:
It should be few kg lighter as standard and 20 to 30 extra with the proper package.

Some of the hardware that is slated for the GT4 RS could be heavier than that for the GT4 (particularly if the engine and gearbox are related to those of the GT3). And bigger wheels/tires/brakes can add weight as can beefier suspension. For example, I don't think a modern GT3 RS weighs less than its contemporary GT3.

--

22 GT3 Manual pending, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 18 GT3 Manual, 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi

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Oct 23, 2021 3:26:17 PM

Whoopsy: Rennteam Moderator; Loc: Vancouver,BC , Canada; Posts: 15950, Gallery; Registered on: Sep 19, 2006; Reply to: Grant

Re: GT4RS

GT3 engine only mates to a 911 gearbox, it will take some modifications in order to be mounted to a Cayman gearbox. It spins the wrong way around after all. The GT4RS likely retains the regular GT4 PDK box, perhaps with some gearing changes. Never say never however, I did asked AP about the rotation issue Weissach as I thought the engine was the GT3 engine, his reply was a smile and said we are Porsche after all and we know engineering. But that was before it was disclosed that the GTS got a new 4.0L flat 6, so his engineering reference could be the new engine and not an extra cog in the gearbox to reverse the spin direction.

The trick intake system probably gained a few kgs, they might put on composite hood and roof to shave some weight. The prototype is wrapped in black for a reason, covering up the yellow paint and perhaps the composite components. Fenders will likely stay as metallic. I don't see them fitting magnesium wheels to the car for cost reason so another big chunk of savings gone.

All said and done, it will be right around the ballpark of a 4.0 GTS PDK weight.

--

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Oct 23, 2021 5:49:48 PM

Schutzhund: Junior; Loc: Rheinland-Pfalz , Germany; Posts: 51, Gallery; Registered on: Mar 23, 2014; Reply to: Grant

Re: GT4RS

Grant:
the-missile:
It should be few kg lighter as standard and 20 to 30 extra with the proper package.

Some of the hardware that is slated for the GT4 RS could be heavier than that for the GT4 (particularly if the engine and gearbox are related to those of the GT3). And bigger wheels/tires/brakes can add weight as can beefier suspension. For example, I don't think a modern GT3 RS weighs less than its contemporary GT3.

--

22 GT3 Manual pending, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 18 GT3 Manual, 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi

I don't believe wheel and brake changes are necessary. The 718 is already tire size limited by its design. I think all the brakes need is some reprogramming for bias.

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Oct 23, 2021 6:36:54 PM

Grant: Rennteam VIP; Loc: Denver, CO , United States; Posts: 12550, Gallery; Registered on: Aug 21, 2002; Reply to: Schutzhund

Re: GT4RS

Schutzhund:
I don't believe wheel and brake changes are necessary. The 718 is already tire size limited by its design. I think all the brakes need is some reprogramming for bias.

I don't think GT4RS is going to use same wheels and tire sizes as GT4 - Porsche will go out of their way to be sure than the Cup2 R tires of the RS cannot be easily retrofitted to the GT4 (by using new wheels with odd offsets and/or diameter to make swaps difficult).

--

22 GT3 Manual pending, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 18 GT3 Manual, 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi

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Oct 23, 2021 6:51:27 PM

ksdaoski27: Newbie; Loc: WI , United States; Posts: 8, Gallery; Registered on: Nov 15, 2020; Reply to: Grant

Re: GT4RS

Not to mention center locks

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Oct 23, 2021 11:03:25 PM

watt: Rennteam Master; Loc: Way Back In , New Zealand; Posts: 4455, Gallery; Registered on: Sep 27, 2002; Reply to: ksdaoski27

Re: GT4RS

ksdaoski27:
Not to mention center locks

Let's hope they heard and leave the fog centre locks in the trash.

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Oct 24, 2021 4:07:13 AM

the-missile: Rennteam Master; Loc: The World , France; Posts: 3477, Gallery; Registered on: May 10, 2014; Reply to: Whoopsy

Re: GT4RS

Whoopsy:
GT3 engine only mates to a 911 gearbox, it will take some modifications in order to be mounted to a Cayman gearbox. It spins the wrong way around after all. The GT4RS likely retains the regular GT4 PDK box, perhaps with some gearing changes. Never say never however, I did asked AP about the rotation issue Weissach as I thought the engine was the GT3 engine, his reply was a smile and said we are Porsche after all and we know engineering. But that was before it was disclosed that the GTS got a new 4.0L flat 6, so his engineering reference could be the new engine and not an extra cog in the gearbox to reverse the spin direction.

The trick intake system probably gained a few kgs, they might put on composite hood and roof to shave some weight. The prototype is wrapped in black for a reason, covering up the yellow paint and perhaps the composite components. Fenders will likely stay as metallic. I don't see them fitting magnesium wheels to the car for cost reason so another big chunk of savings gone.

All said and done, it will be right around the ballpark of a 4.0 GTS PDK weight.

these are the mag wheels Smiley - it is an RS, they will make it right.

--

GT Lover, Porsche fan

991.2 GT3 manual

Cayenne GTS 2014

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Oct 24, 2021 6:11:00 AM

bluelines: Rennteam VIP; Loc: Argovia , Switzerland; Posts: 11655, Gallery; Registered on: Apr 29, 2005; Reply to: Whoopsy

Re: GT4RS

Whoopsy:
…his reply was a smile and said we are Porsche after all and we know engineering.

LOL! Smiley That is a strong statement coming from someone who could not engineer a fix for the cogs on the existing GT4 manual transmission Smiley

--

2016 Porsche 981 GT4 | Racing Yellow
2018 Audi S6 Avant | Ibis White

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Oct 24, 2021 7:36:31 AM

Whoopsy: Rennteam Moderator; Loc: Vancouver,BC , Canada; Posts: 15950, Gallery; Registered on: Sep 19, 2006; Reply to: bluelines

Re: GT4RS

he do love his job..........

--

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Oct 24, 2021 8:32:08 AM

the-missile: Rennteam Master; Loc: The World , France; Posts: 3477, Gallery; Registered on: May 10, 2014; Reply to: bluelines

Re: GT4RS

bluelines:
Whoopsy:
…his reply was a smile and said we are Porsche after all and we know engineering.

LOL! That is a strong statement coming from someone who could not engineer a fix for the cogs on the existing GT4 manual transmission

Engineering marvels but remember the margin needs to be there and is stiff... Smiley

--

GT Lover, Porsche fan

991.2 GT3 manual

Cayenne GTS 2014

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Oct 24, 2021 9:10:33 AM

bluelines: Rennteam VIP; Loc: Argovia , Switzerland; Posts: 11655, Gallery; Registered on: Apr 29, 2005; Reply to: Whoopsy

Re: GT4RS

Whoopsy:
he do love his job..........

I bet there are some conflicts between engineering and sales indecision

--

2016 Porsche 981 GT4 | Racing Yellow
2018 Audi S6 Avant | Ibis White

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Oct 24, 2021 9:17:48 AM

reginos: Rennteam VIP; Loc: Nicosia , Cyprus; Posts: 12114, Gallery; Registered on: Mar 20, 2005; Reply to: bluelines

Re: GT4RS

Andy Preuninger is an asset to Porsche. An accomplished automotive engineer who also does his promotion and sales duties very well in videos, chats interviews etc.

https://www.topgear.com/car-news/chris-harris/chris-harris-and-garage-full-porsche-911-gt-cars

https://www.motortrend.com/features/porsche-911-heaven-inside-secret-garage-tour/

He even has his way with women Smiley

https://www.youtube.com/watch?v=4yoe17ya2z0

--

"Porsche....and Nothing else matters"

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Oct 24, 2021 5:20:46 PM

Whoopsy: Rennteam Moderator; Loc: Vancouver,BC , Canada; Posts: 15950, Gallery; Registered on: Sep 19, 2006; Reply to: bluelines

Re: GT4RS

bluelines:
Whoopsy:
he do love his job..........

I bet there are some conflicts between engineering and sales

Compare to some other company, engineers at Porsche already have a much bigger voice.........

--

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Oct 26, 2021 6:22:03 PM

d997h: Expert; Loc: . , Germany; Posts: 1810, Gallery; Registered on: Nov 24, 2005; Reply to: Whoopsy

Re: GT4RS

I would be interested how they do the new cooling stuff through the former side windows ?

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Oct 26, 2021 7:33:31 PM

Whoopsy: Rennteam Moderator; Loc: Vancouver,BC , Canada; Posts: 15950, Gallery; Registered on: Sep 19, 2006; Reply to: d997h

Re: GT4RS

d997h:
I would be interested how they do the new cooling stuff through the former side windows ?

Side window is engine air intakes.

--

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Oct 27, 2021 4:08:52 PM

d997h: Expert; Loc: . , Germany; Posts: 1810, Gallery; Registered on: Nov 24, 2005; Reply to: Whoopsy

Re: GT4RS

Äääh, l know, l was was wondering how they actually do it ? … l have these little compartments / boxes at the back / left and right at my side windows of my Cayman, perhaps, that is what they simply replace … ? wink

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Oct 27, 2021 4:51:33 PM

Boxster Coupe GTS: Rennteam Master; Loc: UK , United Kingdom; Posts: 5874, Gallery; Registered on: Feb 23, 2005; Reply to: Whoopsy

Re: GT4RS

Whoopsy:
d997h:
I would be interested how they do the new cooling stuff through the former side windows ?

Side window is engine air intakes.

Here is a high-definition image where you can see the new air intakes for the engine...

Smiley

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Oct 27, 2021 4:56:52 PM

Gauss: Rennteam Moderator; Loc: Luxembourg , Luxembourg; Posts: 5791, Gallery; Registered on: Jun 3, 2003; Reply to: Boxster Coupe GTS

Re: GT4RS

The front and side look more aggressive, however the rear looks like a normal GT4 (except for the new wing).

--

2018 White 911 GT3

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Oct 28, 2021 7:32:04 AM

BjoernB: Rennteam Master; Loc: Switzerland , Switzerland; Posts: 4100, Gallery; Registered on: Oct 19, 2004; Reply to: Gauss

Re: GT4RS

GT3 engine as far as I understand

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Oct 29, 2021 2:49:02 PM

996FourEss: Senior; Loc: London , United Kingdom; Posts: 777, Gallery; Registered on: Aug 15, 2011; Reply to: d997h

Re: GT4RS

d997h:
Äääh, l know, l was was wondering how they actually do it ? … l have these little compartments / boxes at the back / left and right at my side windows of my Cayman, perhaps, that is what they simply replace … ?

Perfect for taking a bottle of corked wine back to the wine store!!!

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Oct 29, 2021 2:49:47 PM

996FourEss: Senior; Loc: London , United Kingdom; Posts: 777, Gallery; Registered on: Aug 15, 2011; Reply to: Gauss

Re: GT4RS

Gauss:
The front and side look more aggressive, however the rear looks like a normal GT4 (except for the new wing).

Well the wing is quite a bit more aggressive.

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Oct 29, 2021 8:03:15 PM

hunterone: Senior; Loc: Vienna , Austria; Posts: 582, Gallery; Registered on: Jan 9, 2006; Reply to: 996FourEss

Re: GT4RS

https://www.instagram.com/p/CVn517OtqH6

500 HP angel

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Oct 29, 2021 9:01:43 PM

Grant: Rennteam VIP; Loc: Denver, CO , United States; Posts: 12550, Gallery; Registered on: Aug 21, 2002; Reply to: hunterone

Re: GT4RS

hunterone:
https://www.instagram.com/p/CVn517OtqH6

500 HP

Excellent - thanks for posting!

--

22 GT3 Manual, 73 Carrera RS 2.7 Carbon Fiber replica (1,890 lbs), 06 EVO9 with track mods. Former: 18 GT3 Manual, 16 Cayman GT4, 73 911S, Two 951S's, 996 C2, 993 C2, 98 Ferrari 550, 79 635CSi

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Oct 30, 2021 9:33:13 AM

Gnil: Rennteam Moderator; Loc: VD, Switzerland , Switzerland; Posts: 14084, Gallery; Registered on: Mar 11, 2005; Reply to: Grant

Re: GT4RS

500 HP could actually be true. The GT3 RS 991.1 with 500HP on Cup 2 did the Nordschleife in 7:20 ( short version)

Considering that the R tire gain about 10 s on the Ring, which would bring a 500HP Porsche car to around 7:10

With the chassis improvements in the last 4 years and the 500 HP, the time of 7:04 would tie together.

--

964 Carrera 4 -- 997.2 C2S , -20mm -- 991.2 GT3 RS

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Oct 30, 2021 10:00:36 AM

reginos: Rennteam VIP; Loc: Nicosia , Cyprus; Posts: 12114, Gallery; Registered on: Mar 20, 2005; Reply to: Gnil

Re: GT4RS

A 500 HP Cayman shows how confident Andy P. and his people are with the current 911 GT cars.

--

"Porsche....and Nothing else matters"

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Oct 30, 2021 2:13:45 PM

KMM: Expert; Loc: Boston, MA , United States; Posts: 1744, Gallery; Registered on: Feb 5, 2004; Reply to: reginos

Re: GT4RS

So better front (and rear) suspension geometry versus better weight distribution?

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Oct 30, 2021 5:22:18 PM

Gauss: Rennteam Moderator; Loc: Luxembourg , Luxembourg; Posts: 5791, Gallery; Registered on: Jun 3, 2003; Reply to: KMM

Re: GT4RS

Can the GT3 front suspension be fitted to a Cayman?

--

2018 White 911 GT3

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Oct 30, 2021 5:35:13 PM

the-missile: Rennteam Master; Loc: The World , France; Posts: 3477, Gallery; Registered on: May 10, 2014; Reply to: Gauss

Re: GT4RS

718 has already the front GT3 setup from 991.1 I don't why the RS would not have the setup of the 991.2 GT3...with better mods!

--

GT Lover, Porsche fan

991.2 GT3 manual

Cayenne GTS 2014

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Oct 30, 2021 5:59:58 PM

Whoopsy: Rennteam Moderator; Loc: Vancouver,BC , Canada; Posts: 15950, Gallery; Registered on: Sep 19, 2006; Reply to: Gauss

Re: GT4RS

Gauss:
Can the GT3 front suspension be fitted to a Cayman?

I don't think the 992 carries over the 991 bits for the front end.

Before, the 991 shares the whole front clip with Cayman/Boxster, so for some enterprising people, nothing is stopping them from bolting on a set of 911 fenders and bumpers and headlights to a Cayman/Boxster. Every the suspension mounting points were the same as they share the same luggage "bucket". Of course the bucket will be a bit different between RWD cars vs AWD ones.

Current Cayman/Boxster are still on the 991 platform, so the 992 bits will be hard pressed to be retrofitted.

--

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Oct 30, 2021 10:33:12 PM

xpto: Co-Pilot; Loc: .... , Portugal; Posts: 269, Gallery; Registered on: Oct 9, 2017; Reply to: Whoopsy

Re: GT4RS

Even of the road this car should be fantastic. Compact dimension, the hp and the different gear ratios

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