Sports Response Button
09-30-2021 | 10:23 PM
#76
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Joined: Oct 2020
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From: New Jersey
Today, I used the sports response button while driving at 70mp on the highway. My wife was freakin out because we were fast approaching our exit, and there was no openings in the traffic to be able to move right, two lanes, into the exist lane. I said, “calm down, nothing to worry about” while I hit the button. I moved into the passing lane (which was open), and flew past a bunch of cars and trucks in the blink of an eye, with plenty of time and space to move into the exit lane. My wife said (for real), “that was really cool, but don’t do that again when I’m with you”.
Might I have been able to do the same maneuver without it? Maybe, maybe not….but as my wife said, “that was really cool”.
Might I have been able to do the same maneuver without it? Maybe, maybe not….but as my wife said, “that was really cool”.
10-01-2021 | 05:58 AM
#78
Racer
Joined: Jan 2017
Posts: 342
Likes: 216
From: NE Ohio
When switching from Sport to Sport+ mode, the revs climb. When driving in Sport+ mode, and you press the Sport Response button, the revs climb even further. To me, the SR button most definitely is a performance boost. The best use of the tech is when in Normal or Sport mode and you want to overtake, you just hit the button and everything is in its optimal settings, and you just go. No downshifting a manual, no flipping settings with the Sport Chrono **** or via dash (assuming this is how non SC guys change drive modes). SC is my favorite option on this car along with the SR button.....well, that and full leather. 😝
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Tupper (10-03-2021)
10-02-2021 | 10:36 AM
#79
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Joined: Feb 2013
Posts: 461
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From: Northern Virginia
I'm not sure that this means much scientifically but I was recently doing some speed runs (controlled private environment) and got the following results:
Rolling start in Sport Plus with SRB - 157 mph
Launch with SRB - 162 mph
Launch without SRB - 162 mph
Certainly not scientific but in Sport Plus at full throttle, SRB made no difference. SRB was engaged at speed not from a stop.
Rolling start in Sport Plus with SRB - 157 mph
Launch with SRB - 162 mph
Launch without SRB - 162 mph
Certainly not scientific but in Sport Plus at full throttle, SRB made no difference. SRB was engaged at speed not from a stop.
Last edited by michael818; 10-02-2021 at 11:37 AM.
10-02-2021 | 10:59 AM
#80
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I'm not sure that this means such but I was recently doing some speed runs (controlled private environmrnt) and got the following:
Rolling start in Sport Plus with SRB - 157 mph
Launch with SRB - 162 mph
Launch without SRB - 162 mph
Certainly not scientific but in Sport Plus at full throttle, SRB made no difference.
Rolling start in Sport Plus with SRB - 157 mph
Launch with SRB - 162 mph
Launch without SRB - 162 mph
Certainly not scientific but in Sport Plus at full throttle, SRB made no difference.
I agree with your first statement. Some believe it does, other’s don’t. I can live with that.
Last edited by CodyBigdog; 10-02-2021 at 11:01 AM.
10-03-2021 | 02:43 AM
#81
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Joined: Sep 2021
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From: Austin, TX
I tested this on my 981 Boxster S and a quick blip of the throttle does kick down several gears when in normal mode and there is no associated acceleration when you do it. It's of no use for passing because you want to floor it and have it kick down for quick acceleration. Blipping it and then flooring it seems like a waste of time. However, if the 992 has this behavior as well then it will be useful for engine braking where downshifting is appropriate without getting on the brakes.
Last edited by breny4104; 10-03-2021 at 02:48 AM.
10-03-2021 | 10:01 AM
#82
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Joined: Dec 2013
Posts: 264
Likes: 108
From: Tampa
Ok I need to stop with this thread. I was out testing all these different theories this morning. On the freeway switching to sport plus, then hitting the SRB to see if I could feel a difference. Then tapping the gas pedal various amounts(this does not work) all the way to engaging the kick down. When I took an exit, some dude pulled up next to me to ask if my car was all right and do I need any help.
10-03-2021 | 10:19 AM
#83
RL Community Team
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From: Chicago area
I was out fiddling around yesterday too. In S+ mode I hit the SRB and the revs still went way up. That clearly is proof that SRB is not just a shortcut to S+ mode.
Whether or not overboost is a feature remains a mystery.
Whether or not overboost is a feature remains a mystery.
10-03-2021 | 10:41 AM
#84
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Joined: Dec 2013
Posts: 264
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From: Tampa
If you are just driving normal in Sport or Normal and switch the wheel to Sport Plus it drops a few gears. Then if you hit the SRB yes the revs pick up a bit.
But if you are in Sport Plus already and you are absolutely mobbing the car, I mean getting down with it, and then hit the SRB it does absolutely nothing.
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Tupper (10-03-2021)
10-03-2021 | 10:55 AM
#85
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A while ago I saw a video that was testing the SRB, and they claimed it held the RPM’s longer than just putting it in sports+ mode. If so, that might explain the 20 second limit? IMO, I think there has to be some logical reason for the 20 sec limit? Either holding the revs longer, or over-boost?
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Tupper (10-03-2021)
10-03-2021 | 12:07 PM
#86
Instructor
Joined: Apr 2013
Posts: 167
Likes: 116
From: San Diego
Here is an article about about a drag race between a Porsche 911 turbo and a Nissan turbo. Watch all of it and you will be amazed at the results. If it shows a lot of races look at the one with the Nissan. https://www.bing.com/videos/search?q...2Bnissan%2Bgtr
10-03-2021 | 12:07 PM
#87
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Who knows what’s true??, but from the beginning, I always thought that the 20 sec limit was key to understanding what’s happening, ie, IMO there is a time limit for a technical reason:
https://flatsixes.com/cars/porsche-9...kage-features/
”The little button in the middle of the mode switch is the Porsche Sport Response Button (PSRB), and it makes you a driving God for 20 seconds. All it takes is a little press of the button. Porsche doesn’t really get into the technical ‘how’ of the button, but they have said that when you press the button, the drivetrain is set up for maximum acceleration for a time period of 20 seconds. When you press the Sport Response button, the PDK gearbox will automatically select the right gear for accelerating, and the turbochargers are allowed to overboost. Porsche makes no claims on horespower or torque increases during the overboost period, but the car certainly feels faster in the ‘seat-of-the-pants’ sense. We had a chance to test the button out when passing slower traffic, and it works wonders. Kick down a few gears, boost the power, and you’re instantly past what was formerly a rolling roadblock.”
https://flatsixes.com/cars/porsche-9...kage-features/
”The little button in the middle of the mode switch is the Porsche Sport Response Button (PSRB), and it makes you a driving God for 20 seconds. All it takes is a little press of the button. Porsche doesn’t really get into the technical ‘how’ of the button, but they have said that when you press the button, the drivetrain is set up for maximum acceleration for a time period of 20 seconds. When you press the Sport Response button, the PDK gearbox will automatically select the right gear for accelerating, and the turbochargers are allowed to overboost. Porsche makes no claims on horespower or torque increases during the overboost period, but the car certainly feels faster in the ‘seat-of-the-pants’ sense. We had a chance to test the button out when passing slower traffic, and it works wonders. Kick down a few gears, boost the power, and you’re instantly past what was formerly a rolling roadblock.”
10-03-2021 | 12:09 PM
#88
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Here is an article about about a drag race between a Porsche 911 turbo and a Nissan turbo. Watch all of it and you will be amazed at the results. If it shows a lot of races look at the one with the Nissan. https://www.bing.com/videos/search?q...2Bnissan%2Bgtr
Thx. I linked this video earlier in the thread. Yes, pretty amazing.
10-03-2021 | 12:24 PM
#89
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Interesting discussion (from 2018) about the topic of turbo “overboost”. The discussion spans a number of different 911 models:
https://rennlist.com/forums/991-turb...t-and-psi.html
”In the S model, turbo boost is increased to 1.2 bar (17.4 psi) and maximum engine speed has risen 200 rpm to 7,200 rpm, creating a more flexible engine with greater torque during maximum acce- leration and following gear changes.
Overboost: power is boosted at the press of a button
With the Sport Chrono package, standard on the 911 Turbo S and optional on the 911 Turbo, maximum acceleration is aided by an overboost function that increases maximum turbo boost pressure by approximately 0.15 bar (2.2 psi) for up to 20 seconds in the engine’s midrange, increasing max torque to 750 Nm (553 lb.-ft.).
I read that as 1.2 Bar being the standard 991.1 Turbo Boost and overboost increasing 0.15 to 1.35 Bar.”
https://rennlist.com/forums/991-turb...t-and-psi.html
”In the S model, turbo boost is increased to 1.2 bar (17.4 psi) and maximum engine speed has risen 200 rpm to 7,200 rpm, creating a more flexible engine with greater torque during maximum acce- leration and following gear changes.
Overboost: power is boosted at the press of a button
With the Sport Chrono package, standard on the 911 Turbo S and optional on the 911 Turbo, maximum acceleration is aided by an overboost function that increases maximum turbo boost pressure by approximately 0.15 bar (2.2 psi) for up to 20 seconds in the engine’s midrange, increasing max torque to 750 Nm (553 lb.-ft.).
I read that as 1.2 Bar being the standard 991.1 Turbo Boost and overboost increasing 0.15 to 1.35 Bar.”
10-05-2021 | 11:38 PM
#90
Pro
Joined: Oct 2020
Posts: 714
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From: New Jersey
Interesting discussion (from 2018) about the topic of turbo “overboost”. The discussion spans a number of different 911 models:
https://rennlist.com/forums/991-turb...t-and-psi.html
”In the S model, turbo boost is increased to 1.2 bar (17.4 psi) and maximum engine speed has risen 200 rpm to 7,200 rpm, creating a more flexible engine with greater torque during maximum acce- leration and following gear changes.
Overboost: power is boosted at the press of a button
With the Sport Chrono package, standard on the 911 Turbo S and optional on the 911 Turbo, maximum acceleration is aided by an overboost function that increases maximum turbo boost pressure by approximately 0.15 bar (2.2 psi) for up to 20 seconds in the engine’s midrange, increasing max torque to 750 Nm (553 lb.-ft.).
I read that as 1.2 Bar being the standard 991.1 Turbo Boost and overboost increasing 0.15 to 1.35 Bar.”
https://rennlist.com/forums/991-turb...t-and-psi.html
”In the S model, turbo boost is increased to 1.2 bar (17.4 psi) and maximum engine speed has risen 200 rpm to 7,200 rpm, creating a more flexible engine with greater torque during maximum acce- leration and following gear changes.
Overboost: power is boosted at the press of a button
With the Sport Chrono package, standard on the 911 Turbo S and optional on the 911 Turbo, maximum acceleration is aided by an overboost function that increases maximum turbo boost pressure by approximately 0.15 bar (2.2 psi) for up to 20 seconds in the engine’s midrange, increasing max torque to 750 Nm (553 lb.-ft.).
I read that as 1.2 Bar being the standard 991.1 Turbo Boost and overboost increasing 0.15 to 1.35 Bar.”