Crown
Board: Porsche - 911 - 997
Language: English
Region: Worldwide
Close
CloseForum - Thread
Re: WHY people order their GT3 RS with sport chrono ?
Quote:
997GT2 said:
The sport chrono is useless in the GT3 RS and the chrono looks so ugly. Just wondering why people willing to pay for that thing.
Plus, any option is a must have item for the RS?
Thanks.
SC can be quite convenient on the track (timing of laps...)
Jun 19, 2007 9:19:05 PM
- Leawood911
- Rennteam VIP
-
- Loc: Kansas, USA , United States
- Posts: 6924, Gallery
- Registered on: Aug 29, 2006
- Reply to: Marwan Arakji
Re: WHY people order their GT3 RS with sport chrono ?
In the GT3 the Sport Chrono button, when in Sport mode, increases horsepower slightly. Not so in the standard Carrera and Carrera S. This is reason enought to have the sport button. Not certain if you can get the sport button w/o the wart.
Re: WHY people order their GT3 RS with sport chrono ?
Quote:
Circe said:
[quote
SC can be quite convenient on the track (timing of laps...)
Additionally, the folks at Porsche say with the SC engaged, the PSM "threshold is further extended to enable greater driver involvement."
The GT3/GT3 RS doesn't have PSM, only traction control (TC).
Jun 19, 2007 9:50:40 PM
- Grant
- Rennteam VIP
-
- Loc: Denver, CO , United States
- Posts: 12588, Gallery
- Registered on: Aug 21, 2002
- Reply to: Leawood911
Re: WHY people order their GT3 RS with sport chrono ?
Quote:
Leawood911 said:
In the GT3 the Sport Chrono button, when in Sport mode, increases horsepower slightly. Not so in the standard Carrera and Carrera S. This is reason enought to have the sport button. Not certain if you can get the sport button w/o the wart.
Yes, you get the Sport button without the wart. SC is only a timer in GT3/RS...
Jun 20, 2007 2:50:09 AM
- Bluehinder
- Junior
-
- Loc: Colorado
- Posts: 134, Gallery
- Registered on: Mar 18, 2007
- Reply to: BMCG
Jun 27, 2007 4:23:36 PM
- SimonWall
- Junior
-
- Loc: UK
- Posts: 84, Gallery
- Registered on: Aug 2, 2006
- Reply to: Bluehinder
Re: WHY people order their GT3 RS with sport chron
Guys - please advise. My sales guy is saying that Sport Chrono adds c.15 bhp top end (few hundred RPM to the red line) in a GT3 (non RS). My view: 1) I don't like the clock thingy cluttering the dash and 2) I don't want to spend the extra cost on something frivolous like that. However, the extra bhp are a big deal to me on such a car.
Does anyone know if the Sports Chrono really adds any bhp/RPM, or is that rubbish? Thanks. (Sorry for hijacking your post slightly 997GT2).
Does anyone know if the Sports Chrono really adds any bhp/RPM, or is that rubbish? Thanks. (Sorry for hijacking your post slightly 997GT2).
Re: WHY people order their GT3 RS with sport chrono ?
Quote:
MKSGR said:Quote:
997GT2 said:
The sport chrono is useless in the GT3 RS and the chrono looks so ugly. Just wondering why people willing to pay for that thing.
Plus, any option is a must have item for the RS?
Thanks.
SC can be quite convenient on the track (timing of laps...)
The SC interface for timing sucks, not accurate at all, and no track sanctioning body is going to accept those times.
Proper racing uses an in car transponder.
Re: WHY people order their GT3 RS with sport chron
It is rubbish.
The sport button which is standard on the GT3 controls those functions (engine, TC limits, exhaust valve, etc).
Sport Chrono on the GT3 only gives you lap timing functions, AC memory functions and some other fairly useless things like that)
Your salesperson is thinking of what Sport Chrono does on other Porsche models which does in fact control motor functions but not on the GT3.
This is a quote from the 2007 Porsche GT3 Technical Introduction booklet.
"When the Sport Button on the center console is depressed this increases the engine torque by up to 18 ft. lbs. (25Nm) in the mid-rpm range and selects a sporty tuning for Traction Control (TC).
In the sports setting the exhaust backpressure in the variable exhaust system is reduced, the gas cycle improved and the torque noticbly increased in the rpm range between approx. 3,000 and 4,200 rpm. This leads to an increase in the torque values of between 15 and 18 ft. lbs. (20 and 25 Nm) and an increase in the power output of 13 bhp."
I hope this puts the Sport Chrono question to bed once and for all.
The sport button which is standard on the GT3 controls those functions (engine, TC limits, exhaust valve, etc).
Sport Chrono on the GT3 only gives you lap timing functions, AC memory functions and some other fairly useless things like that)
Your salesperson is thinking of what Sport Chrono does on other Porsche models which does in fact control motor functions but not on the GT3.
This is a quote from the 2007 Porsche GT3 Technical Introduction booklet.
"When the Sport Button on the center console is depressed this increases the engine torque by up to 18 ft. lbs. (25Nm) in the mid-rpm range and selects a sporty tuning for Traction Control (TC).
In the sports setting the exhaust backpressure in the variable exhaust system is reduced, the gas cycle improved and the torque noticbly increased in the rpm range between approx. 3,000 and 4,200 rpm. This leads to an increase in the torque values of between 15 and 18 ft. lbs. (20 and 25 Nm) and an increase in the power output of 13 bhp."
I hope this puts the Sport Chrono question to bed once and for all.
Re: WHY people order their GT3 RS with sport chron
When I ordered my GT3 my sales rep, who happens to be a long-time friend, told me right off not to get sport chrono--that it was unnecessary on the GT3, because the car already has the sport button, as mentioned above.
Upon his suggestion, I also did not order PCM. This is the way I've seen RS cars configured--no sport chrono, no PCM. Since I don't use NAV (Hawaii), the PCM would not be of much use to me, esp. without sport chrono. Anyway, so far I'm happy with my decision (tho the car ain't here yet!).
Upon his suggestion, I also did not order PCM. This is the way I've seen RS cars configured--no sport chrono, no PCM. Since I don't use NAV (Hawaii), the PCM would not be of much use to me, esp. without sport chrono. Anyway, so far I'm happy with my decision (tho the car ain't here yet!).
Re: WHY people order their GT3 RS with sport chrono ?
Quote:
Moogle said:Quote:
MKSGR said:Quote:
997GT2 said:
The sport chrono is useless in the GT3 RS and the chrono looks so ugly. Just wondering why people willing to pay for that thing.
Plus, any option is a must have item for the RS?
Thanks.
SC can be quite convenient on the track (timing of laps...)
The SC interface for timing sucks, not accurate at all, and no track sanctioning body is going to accept those times.
Proper racing uses an in car transponder.
Read some of Markus' posts regarding recent Porsche offerings and you'll see how serious his statement was
.
Re: WHY people order their GT3 RS with sport chrono ?
Quote:
TEE1 said:
cruise control
cruise control is another option. you can however set an audible for when you exceed a certain speed limit.
you can also program things like central locking to lock the doors at pull away or above 5mph and so on and also the amount of time the headslamps and taillights stay on after you have turn off the engine. you can also set the footwell illumination level ! or alternatively have the dealer set these options and save you self the money and yes i have driven a car with this installed.
Jul 2, 2007 12:27:28 PM
- BobSheeley
- Newbie
-
- Loc: London
- Posts: 14, Gallery
- Registered on: May 16, 2007
- Reply to: - MJS -
Re: WHY people order their GT3 RS with sport chron
I had a look at the GT3/GT3RS brochure over the weekend.
All the sport button does is change the suspension settings nothing else.
The Crono and Crono Plus packages are merely timing packages. I suspect that the as the Crono Plus pacakge can only be had with the sat nav package means that the GPS is required for the lap timing - otherwsie a beacon would be needed.
Bob
All the sport button does is change the suspension settings nothing else.
The Crono and Crono Plus packages are merely timing packages. I suspect that the as the Crono Plus pacakge can only be had with the sat nav package means that the GPS is required for the lap timing - otherwsie a beacon would be needed.
Bob
Jul 2, 2007 1:23:16 PM
- Boxster Coupe GTS
- Rennteam Master
-
- Loc: UK , United Kingdom
- Posts: 5886, Gallery
- Registered on: Feb 23, 2005
- Reply to: BobSheeley
GT3 sport mode...
"Powering the new 911 GT3 is a rear-mounted, water-cooled six-cylinder boxer engine. Special features include four-valve technology and VarioCam variable valve timing.
Naturally aspirated, it develops 305 kW (415 bhp) at 7,600 rpm from a total displacement of 3,600 cm3. Maximum torque of 405 Nm is available at 5,500 rpm.
When 'Sport' mode is selected, as much as 25 Nm of additional torque is available in the medium rev range, i.e., below the point of maximum torque. Maximum engine speed is 8,400 rpm.
Even more impressive is the high specific output in excess of 115 bhp per litre. Indeed, the new 911 GT3 offers more power per unit of engine displacement than any other naturally aspirated production Porsche. The benchmark sprint to 100 km/h (62 mph) requires as little as 4.3 seconds. Maximum speed is 310 km/h (193 mph).
All components in the engine cooling system are directly sourced from the Porsche Motorsport division. Each of these parts is, of course, designed for the unique challenges of endurance racing.
Ultra-lightweight connecting rods and specially lightened pistons help to further reduce the oscillating masses, enabling a more dynamic, free-revving throttle response. The valvegear also features intelligent design solutions originally developed for racing engines. The inlet and exhaust valves, for example, use ultralight tappets with hydraulic valve clearance adjustment. Thanks to this and other performance-oriented features, the new 911 GT3 engine has a maximum speed of 8,400 rpm.
This higher rev limit allows a closer drop between individual gear ratios and thus faster acceleration."
...
"For the first time ever, the 911 GT3 models are equipped with Traction Control (TC) as standard. Derived from the Carrera GT, this proven technology combines ABD, ASR and MSR functionality. Specifically configured for optimum sports performance, Traction Control Front axle with Porsche Ceramic Composite Brake (PCCB) helps to eliminate wheelspin under full acceleration which could otherwise destabilise the rear of the car. The standard trigger threshold is purposely so high that it is rarely exceeded during normal road driving in the dry.
It is possible to raise the threshold higher still by pressing the 'Sport' button on the centre console.
For maximum involvement, the system can be fully disabled using the separate 'TC OFF' switch."
Naturally aspirated, it develops 305 kW (415 bhp) at 7,600 rpm from a total displacement of 3,600 cm3. Maximum torque of 405 Nm is available at 5,500 rpm.
When 'Sport' mode is selected, as much as 25 Nm of additional torque is available in the medium rev range, i.e., below the point of maximum torque. Maximum engine speed is 8,400 rpm.
Even more impressive is the high specific output in excess of 115 bhp per litre. Indeed, the new 911 GT3 offers more power per unit of engine displacement than any other naturally aspirated production Porsche. The benchmark sprint to 100 km/h (62 mph) requires as little as 4.3 seconds. Maximum speed is 310 km/h (193 mph).
All components in the engine cooling system are directly sourced from the Porsche Motorsport division. Each of these parts is, of course, designed for the unique challenges of endurance racing.
Ultra-lightweight connecting rods and specially lightened pistons help to further reduce the oscillating masses, enabling a more dynamic, free-revving throttle response. The valvegear also features intelligent design solutions originally developed for racing engines. The inlet and exhaust valves, for example, use ultralight tappets with hydraulic valve clearance adjustment. Thanks to this and other performance-oriented features, the new 911 GT3 engine has a maximum speed of 8,400 rpm.
This higher rev limit allows a closer drop between individual gear ratios and thus faster acceleration."
...
"For the first time ever, the 911 GT3 models are equipped with Traction Control (TC) as standard. Derived from the Carrera GT, this proven technology combines ABD, ASR and MSR functionality. Specifically configured for optimum sports performance, Traction Control Front axle with Porsche Ceramic Composite Brake (PCCB) helps to eliminate wheelspin under full acceleration which could otherwise destabilise the rear of the car. The standard trigger threshold is purposely so high that it is rarely exceeded during normal road driving in the dry.
It is possible to raise the threshold higher still by pressing the 'Sport' button on the centre console.
For maximum involvement, the system can be fully disabled using the separate 'TC OFF' switch."
Jul 2, 2007 1:24:34 PM
- Boxster Coupe GTS
- Rennteam Master
-
- Loc: UK , United Kingdom
- Posts: 5886, Gallery
- Registered on: Feb 23, 2005
- Reply to: Boxster Coupe GTS
Re: GT3 sport mode...
"Overall, the 'Sport' button leaves the PASM alone (regardless of whether you have 'Standard' or 'Sport' suspension mode selected) but slackens the traction control's rein, boosts torque and opens a valve in the exhaust so you can hear the flat-six better. You soon get in the habit of pressing 'Sport' as soon as the engine fires..."
Forum
About Rennteam | Help | Terms of use | Privacy Policy | Support | Contact | Imprint | Archive
Powered by
Community
and
