991 RS ON TRACK

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APOLO1

Original Poster:

5,256 posts

194 months

Thursday 8th October 2015
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Edited by APOLO1 on Thursday 8th October 20:58



Edited by APOLO1 on Thursday 8th October 20:59

APOLO1

Original Poster:

5,256 posts

194 months

Thursday 8th October 2015
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Scooty100 said:
Hello David yours I trust ? Looks awesome
Hi S,
Yes from Monday, most exciting car to drive I have ever owned.....

APOLO1

Original Poster:

5,256 posts

194 months

Friday 9th October 2015
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RSVP911 said:
How D , great shots - how did it fair in the wet ? Mines arriving in less than a month - all very exciting , Cheers smile
Hi R
In the 991GT3 when its wet like this, I tend to press on find the limit of the grip, then just wind it back a bit, seems to work well for me when on track in wet conditions.

Did the same in the RS, only difference was the more I pressed on more and more grip became available, I thought the track was drying out, but it was the aero just pushing the car down, also the tyres seem to be big a big improvement over the ones on the 918 and GT3, with regard to low temp and wet grip.

But for me its the aero that sets this car aside from other GT cars, drives more like a single seat race car imv, never driven any car outside an F1, that feels so planted at very high speed, in addition to low and high speed corners....

Also the braking is on another level, due to the DF just one push and it scrubs of massive speed.

Edited by APOLO1 on Friday 9th October 07:22

APOLO1

Original Poster:

5,256 posts

194 months

Friday 9th October 2015
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Budflicker said:
How is it on a ramp? scratchchin
Joking aside it looks fantastic and fair play for tracking it.
Geo, settings.....trying a few.....

APOLO1

Original Poster:

5,256 posts

194 months

Friday 9th October 2015
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Steve Rance said:
If you can find an aero advantage on a wet track, you should be racing in LMP1.
If I tried to do these speeds in a GT3, I would have been off long before....the more speed the more it felt planted...

Like I said only car I have driven round there in the wet that felt like this was a Formula Renault, and a 97 F1 car.


APOLO1

Original Poster:

5,256 posts

194 months

Friday 9th October 2015
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RDMcG said:
I am no expert though I have had all my RS cars in the wet at the Nurburgring, most recently the 991RS and I can say that it was just unbeleivably better than the 997.2 which was no slouch. I recall how twitch that car was in heavy rain ( and the 7.1 was just scary for me). The 991 was so sure-footed that I could not believe it. Also, on the F1 track at the Ring it was possible to do some sill stuff with all of the runoff there and it had the most predictable and mild inserter I have experienced.

Maybe really advanced drivers will have less difference, but for me it was just startling......
Sounds about right, was chatting to friend last night, he races in PCCB,( used to race in single seats) he says big difference from the previous 911s is the way the 991 just feels so planted, even in wet, lot like a single seats....


APOLO1

Original Poster:

5,256 posts

194 months

Friday 9th October 2015
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ThirtySomething said:
Despite being the bestest, fastest, most amazing blurb blurb .... he already has it for sale on PH at £375,000 ! LOL.
Not mine,like my 918,its a keeper, they did make more than one in Lava.....lol
375K?

APOLO1

Original Poster:

5,256 posts

194 months

Friday 9th October 2015
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RDMcG said:
I don't know Apolo but I am as impressed as he was about the new car.. All cars were on new tires , and of course tire technology has improved over time, so there is an unknown on how the cars would perform on the latest rubber.

2008: good, very scary in deep wet


2010 ; MUCH better...still skittish in heavy rain though



2015: Just mind-blowing....


Edited by RDMcG on Friday 9th October 15:39
918 Owners on other forums that have an RS are saying same thing....

May I enquire, have you changed the geo settings, or left as it comes,? ride height at front seems a little to high for me.

Take it you aware of the diff in the new tyres over the ones on GT3s...

APOLO1

Original Poster:

5,256 posts

194 months

Friday 9th October 2015
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Richie200 said:
In the wet though, the car has virtually no bearing on how well it sticks to the road, pretty much all down to the tyres.
disagree, the car has just under 300% more DF than a 991GT3, on track in the wet it really shows.......much more stable at all speeds and under braking....

APOLO1

Original Poster:

5,256 posts

194 months

Friday 9th October 2015
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isaldiri said:
in % terms yes the RS would still have 3x that of a 991 gt3. The absolute amounts involved however at lower speeds like 120-150kmh (which i doubt in the wet many corners at Silverstone are being taken much more than 100mph) are not going to be very large at all though.
I have info that will interest you, like load rates at various speeds, front and rear... also the camber rates you requested, will EM you later.....

for every about every 10 MPH you add on, you can feel the front end just griping....also under braking from high speed about 70% less time required on the peddle than in the GT3, feels like the car is being pushed down..



Edited by APOLO1 on Friday 9th October 18:26

APOLO1

Original Poster:

5,256 posts

194 months

Friday 9th October 2015
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LaSource said:
Interestingly, I assume the three pictures are using the following tyres:
2007 Pilot Sport Cup 1
2010 Pilot Sport Cup +
2015 Pilot Sport Cup 2

The third one will be faster every wet day. Almost 8mm of depth, multi block tread pattern, multi compound.

Mind you, I do expect the 991 RS to be quicker than all previous iterations in all conditions, but I think the level of performance, planted feel, twitching, etc in wet conditions is more likely to be down to road geo and tyre ability.

(At Silvertone in the wet on Cup 2s on a 996 GT3, I find it so much more planted than a 4.0 RS on Cup+)
respectfully I disagree, I know the diff between lateral grip, tyre contact and aero.....had a good chat with some WEC drivers at Silverstone and Goodwood, car drives exactly as they said it would,...It has about same amount of DF as the 918,(918 is active)and about 700lb less weight...

APOLO1

Original Poster:

5,256 posts

194 months

Saturday 10th October 2015
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hornbaek said:
I had a go at Goodwood a couple of weeks ago and the GT3 RS is very very quick around the circuit. Without too much effort i was very close to the lap record for street legal cars at Goodwood. The aero makes all the difference as you can carry ridiculous amounts of speed into the fast corners without the front end becoming light. Noise put a limit to how fast I could go as I passed the noise limit at 101.5 db for "drive through" and was subsequently black flagged before slowing down a bit. Already the 997 4.0 gives you more front end grip with the winglets and the increased camber but the 991 is in a different league altogether.



Edited by hornbaek on Saturday 10th October 11:16
I hold a lap record for a Production car in my 918 on a UK track, faster than R500 Duratec on Avon ZRs...

Genuinley feel that the RS will be faster...

The only car I have experienced that imv will stay with, or get close to the RS on track is the Mac 675LT

APOLO1

Original Poster:

5,256 posts

194 months

Tuesday 13th October 2015
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isaldiri said:
Preventing overly nosey people from recording various details of one's car seems as good a reason as any to cover one's numberplates imo.
Actually, never did this before....
Just did know what to expect 1st time out on track, even more so in the very wet condition's,. Car was and is faultless....

APOLO1

Original Poster:

5,256 posts

194 months

Tuesday 13th October 2015
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[quote=APOLO1]

Actually, never did this before....
Just did not know what to expect 1st time out on track, even more so in the very wet condition's,. Car was and is faultless....

APOLO1

Original Poster:

5,256 posts

194 months

Tuesday 13th October 2015
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ras62 said:
To give you a comparison, the 997 GT3 RS 4.0 was top of the pops, it was 170kg at 300kph (186mph), which is quite substantial. And this car has more than doubled the downforce, with 350kg at 300kph.
http://www.carmagazine.co.uk/features/car-culture/...
A good description of the front / rear split with numbers in the link above.


This is exactly the same as the 918 while still maintaining, and this is the big point, the same co-efficient of drag as the GT3, which has 110kg of drag. This is unheard of before, something we are all very proud of, very hard to achieve. And you feel that, because that amount of downforce kicks in much earlier, because it’s a linear function. If you’re going on a normal road, 150-160kph, you already noticeably feel the effects.

Q: So you’ve still got a lot of downforce at much lower speeds…

AP: Exactly. You’ve got half of it at 150kph (93mph), and this is still more than the RS 4.0 had in total. And that’s in addition to the mechanical grip with these very wide wheels and huge contact patches, and that rubber compound, and 9.5in wide at the front with 265s. This is all one big performance plus that is making this quantum leap.
Thought the 918 had 400kgs of DF,? also you can feel the aero on the RS at much lower speeds than the 918, even though the 918 is active....no doubt being much lighter helps...

On the RS you can feel it start to build around 80mph, then at 150 plus it feels completely planted. The 918 needs to see 150s plus before you can start to feel it... in my experience.

APOLO1

Original Poster:

5,256 posts

194 months

Tuesday 13th October 2015
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ras62 said:
Maybe the 918 does have 400kg but at a higher speed?
I have a graph with load rates at speeds, as above 918 is active, wing angle, front vents, and under body....recall the max was low 400kgs....

But as you say,ref the RS the usable aero and tyre contact like this has not been seen before, I spoke with a friend today he races in PCC, said the RS is very very close to his race car in this area.....

APOLO1

Original Poster:

5,256 posts

194 months

Wednesday 14th October 2015
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franki68 said:
Well car agree with apollo,it just won their performance car and is 'the best 911 they have driven' or something along those lines.
THe ferrari 488 came 2nd followed by the mclaren 675lt,the gt4 came an honourable 4th with a mention that had value been taken into account it would be the winner.
Since I have had the RS, not picked the keys up for the 918......
Its that good.......

APOLO1

Original Poster:

5,256 posts

194 months

Wednesday 14th October 2015
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andrew said:
but it's clearly visible in the other pics !
not on track its not......
Like I said 1st time out, very wet...did not know what to expect.....

APOLO1

Original Poster:

5,256 posts

194 months

Wednesday 14th October 2015
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Housey said:
I don't think anyone (unless they are an idiot) would argue it's a great car and a step forward, but some of the hyperbole on here is horse st. I don't need to drive one to know that, there is plenty of evidence out there when you start to compare lap times that it's a bit quicker, but not 918 quick or any quicker than a 997 GT2 for example (yea I know that as many more horses) and not massively quicker than a 991 GT3 or Turbo, or any quicker in some instances. It's a 911 a few percent better than the last 911 version. Same as it ever was, same bks as there ever was with the 997 and 996 before them arriving, just after they arrived, and so then the world turns.
ref the 918, not on about the speed, more from a fun interaction point, not just my view either, other 918 owner's that own an RS have same view...

Not a good example with 997GT2 either, would not know which way a RS went.......

APOLO1

Original Poster:

5,256 posts

194 months

Thursday 15th October 2015
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ttdan said:
I have driven it at the PEC, Its wonderful. but, its not that wonderful. Quite a mobile car on its factory geo at moderate speeds but be then so was the 997. it SEEMS to be doing a load of stuff on your behalf, but you could says that about any car, it feels so much smaller to drive than it looks, it looks huge, just depends what you want from a machine. I couldn't get over the not changing gear thing personally and how much quicker that makes it regarding lap times. This makes sense for a racing car where you need to win things but for a toy its less important for me personally.

Its all academic anyway as you can't buy one, so its not as if it a choice for people.
The worlds press, owners, PCC drivers, F1 drivers disagree with you, GT3 won best drivers car on the planet 2014, This RS is big step above.

Also imv, PEC not a good place to get best out of the car, did you drive the press car, or the pre production car?