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-   991 GT3, GT3RS, GT2RS and 911R (https://rennlist.com/forums/991-gt3-gt3rs-gt2rs-and-911r-229/)
-   -   GT2RS vs GT3 Cup Car (https://rennlist.com/forums/991-gt3-gt3rs-gt2rs-and-911r/1085614-gt2rs-vs-gt3-cup-car.html)

TRAKCAR 08-10-2018 06:43 PM


Originally Posted by Footsoldier (Post 15206300)

yes, Manthey car 2.35 on Cup2; 2.31 on Cup R. Very hot day so still some time in the locker, but not Cup car speed.

Foot soldier, or other locals near Spa;
Would it be fair to say a well driven, but not pro driven stock GT3RS goes 2:40?
Then a GT2RS on R, should go faster then 5 seconds faster? Even on a hot day?
No?

I would think a GT2RS or R is much more then 5 seconds faster then a GT3RS on just MPSC2..

isv 08-10-2018 07:02 PM


Originally Posted by TRAKCAR (Post 15206518)
Foot soldier, or other locals near Spa;
Would it be fair to say a well driven, but not pro driven stock GT3RS goes 2:40?
Then a GT2RS on R, should go faster then 5 seconds faster? Even on a hot day?
No?

I would think a GT2RS or R is much more then 5 seconds faster then a GT3RS on just MPSC2..

Yes a very good driver would get a 991.1 RS around in 2:40 on a good day. Potentially a tad quicker.

Footsoldier did say exactly that, the 2rs on Cup2 R was 2:31s? so yes as you say, it would be a good bit more than 5seconds faster than the 3RS even allowing for the Manthey suspension tweaks.


User 52121 08-10-2018 07:03 PM


Originally Posted by SDGT3 (Post 15203065)
Picked up 2RS this morning....Preliminary thoughts..... This car is stupid fast. Feels very stable but speed is so deceiving that it is bound to get you in trouble. Much stiffer than previous 3RS and more composed. Still breaking in and really impressed even at low RPMs. Should be fun. Blow is pick from dealer this morning.


https://cimg2.ibsrv.net/gimg/rennlis...568aed33ea.jpg

That's beautiful - and the Exchange (and Goldcrest!) are good peoples. :)

I was planning to swing up to the TRAC weekend to say hello to some people. Now I feel compelled to go up earlier to hang out during the Murry day!

TRAKCAR 08-10-2018 07:19 PM



Originally Posted by isv (Post 15206560)
Yes a very good driver would get a 991.1 RS around in 2:40 on a good day. Potentially a tad quicker.

Footsoldier did say exactly that, the 2rs on Cup2 R was 2:31s? so yes as you say, it would be a good bit more than 5seconds faster than the 3RS even allowing for the Manthey suspension tweaks.

Thank you, I misread.
its Beer O’clock..

Footsoldier 08-10-2018 07:39 PM

As of this morning, I have the full Manthey suspension on my 2RS, so I’ll let you know what happens when next at Spa!

C.J. Ichiban 08-10-2018 09:52 PM

The 2RS should be over 150mph at 5 places at road America

Into T1
Into T5
Into T8
Kink
Canada corner

Depending on how it hooks up- going into T2 possible as well. Not sure how it will skate / drift over the left coming out of canada corner but in the cup car that's almost flat.

Spa is flat on the gas for 60% of the Lap so power is boss there.

CRex 08-10-2018 11:22 PM

This topic is worth starting a bet on:

Bet: the 2RS slower than the Cup by two-and-half (2.5) seconds of the 991.1 Cup, but not more. In other words, a laptime within 2.5s of each other.

Condition: RS to run fresh Cup N2's, and the Cup running non-special compounds (say the widely available Mich S8 or S9 and not some black arts stuff).

Wager: you win, meal/beer on CRex whenever you're in Hong Kong or Shanghai. You lose, meal/beer on you when he visits your hood. Valid for claim for as long as RL exists...

MaxLTV 08-11-2018 03:48 AM


Originally Posted by isv (Post 15206560)
Yes a very good driver would get a 991.1 RS around in 2:40 on a good day. Potentially a tad quicker.

Footsoldier did say exactly that, the 2rs on Cup2 R was 2:31s? so yes as you say, it would be a good bit more than 5seconds faster than the 3RS even allowing for the Manthey suspension tweaks.

Should be possible to go faster than 2:40 in an RS. Spa favors HP and Aero. GT2 RS has almost the same Aero and Cup and more HP, so it may actually get close to cup there.

JMartinni 08-11-2018 07:21 AM

For comparison's sake: 2018 Qualifying lap times at Road America

2:03.114 Porsche 911 RSR (991 II) - IMSA, Michelin slicks (class best: 2:02.479 Ford)
2:05.014 Porsche 911 GT3 R (991) - PWC, Pirelli slicks (class best: 2:04.960 Ferrari)
2:06.593 Porsche 911 GT3 R (991) - IMSA, Continental slicks
2:11.098 Porsche 911 GT3 Cup (991 II) - IMSA, Yokohama slicks
2:14.311 Porsche 911 GT3 Cup (991) - IMSA, Yokohama slicks
2:20.366 Porsche Cayman GT4 CS MR (981) - IMSA, Continental slicks (class best: 2:18.586 McLaren)
2:21.381 Porsche Cayman GT4 CS MR (981) - PWC, Pirelli slicks (class best: 2:17.527 Panoz)

http://imsa.alkamelsystems.com/
http://world-challenge.com/race/2018-06-rdam/

isv 08-11-2018 07:50 AM


Originally Posted by MaxLTV (Post 15207286)
Should be possible to go faster than 2:40 in an RS. Spa favors HP and Aero. GT2 RS has almost the same Aero and Cup and more HP, so it may actually get close to cup there.

possible? Perhaps yes it would take a very very good driver and a shedload of commitment to get under 2:40 at Spa in the 3rs. I've sat in with some rather good drivers and the best properly data logged (ie 10hz vbox/race navigator, not iphone with harry's laptimer) has been high 2:40s/2:41.

As I said, a 991 cup does something like 2:25 at Spa. Per footsoldier, even on Cup2R the 2rs with Manthey KWs did 2:31 nevermind standard car on N2. That's not close to a Cup in my book...

RennOracle 08-11-2018 11:31 AM


Originally Posted by isv (Post 15207535)


possible? Perhaps yes it would take a very very good driver and a shedload of commitment to get under 2:40 at Spa in the 3rs. I've sat in with some rather good drivers and the best properly data logged (ie 10hz vbox/race navigator, not iphone with harry's laptimer) has been high 2:40s/2:41.

As I said, a 991 cup does something like 2:25 at Spa. Per footsoldier, even on Cup2R the 2rs with Manthey KWs did 2:31 nevermind standard car on N2. That's not close to a Cup in my book...

2:31 on tests, just a solid lap, not a record trial lap. A cup does 2:25 if everything is on point and the new .2. 2:30 is more the norm than the exception. The 991.1 rs stock did 2:40 and quite a few people managed to put a couple of 2:40 and 41 stock, if the lines are right it's a matter of having balls to go into the throttle early on eau rouge.

Obturate 08-11-2018 11:38 AM


Originally Posted by C.J. Ichiban (Post 15206863)
The 2RS should be over 150mph at 5 places at road America

Into T1
Into T5
Into T8
Kink
Canada corner

Depending on how it hooks up- going into T2 possible as well. Not sure how it will skate / drift over the left coming out of canada corner but in the cup car that's almost flat.

Spa is flat on the gas for 60% of the Lap so power is boss there.

I'd be really impressed if the GT2 RS turns into the kink at 150 mph!

isv 08-11-2018 11:42 AM


Originally Posted by RennOracle (Post 15207857)
2:31 on tests, just a solid lap, not a record trial lap. A cup does 2:25 if everything is on point and the new .2. 2:30 is more the norm than the exception. .

just one page ago you said the Cup did 2:35 at Spa which was patently wrong. At least now you've come down 5 seconds. Supercup qualifying pole position was under 2:25 with best race laps just over 2:25.

But yes the 2:31 Manthey lap on the 2rs is clearly not the fastest it can go. It will not however be taking multi seconds off that time to be getting close to the Cup.

TRAKCAR 08-11-2018 11:54 AM


Originally Posted by RennOracle (Post 15207857)
2:31 on tests, just a solid lap, not a record trial lap. A cup does 2:25 if everything is on point and the new .2. 2:30 is more the norm than the exception. The 991.1 rs stock did 2:40 and quite a few people managed to put a couple of 2:40 and 41 stock, if the lines are right it's a matter of having balls to go into the throttle early on eau rouge.

My first track weekend at Spa, in new stock 3RS after running 2 days at the Ring on the same tires I ran 2:44.
Im no talent and I learn a track slowly. When I left I was confident that I could go a couple seconds faster with 2 more track days but alas that hasn’t happened. But asking the local fast guys in GT3’s about their laptimes and seeing the speed differences driving around them, 2:40 should be doable for local drovers..

As my car sits now with all the cheater parts I’m sure it will go faster and surely some locals have similar setup as me new going sub 2:40.

But back to the stock GT2RS on R tires;
it has to be closer to the 2014 CUP times of 2:25? Then it is to the GT3RS 2:40.


TRAKCAR 08-11-2018 11:59 AM


Originally Posted by CRex (Post 15207033)
This topic is worth starting a bet on:

Bet: the 2RS slower than the Cup by two-and-half (2.5) seconds of the 991.1 Cup, but not more. In other words, a laptime within 2.5s of each other.

Condition: RS to run fresh Cup N2's, Rspec and the Cup running non-special compounds (say the widely available Mich S8 or S9 and not some black arts stuff).

Wager: you win, meal/beer on CRex whenever you're in Hong Kong or Shanghai. You lose, meal/beer on you when he visits your hood. Valid for claim for as long as RL exists...

FIFY

This thread takes me back to the 997RS days when we had mods performance doen to a .1 seconds hahaha.

I say 1.5 seconds that the CUP is faster ATL RA.
Fresh MPSC are very fast for a couple laps.

They should just be scrubbed on day day before and he won’t need more then 2 flyers at the time.



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