PSE button off vs on
02-26-2016, 03:22 PM
#1
Three Wheelin'
Thread Starter
PSE button off vs on
I have heard that when PSE button is not pushed, the car performs better. I have also heard that when PSE button is pushed, the car performs better.
Which of the above two statements is correct?
PS is there a way to turn on PSE before start-up?I remember in my 911_50 i used to turn the key slightly so that i can turn on the PSE then i would start-up the car this was the PSE sound comes with start-up. On the GT3 i can't seem to be able to turn the PSE on before engine start-up
Which of the above two statements is correct?
PS is there a way to turn on PSE before start-up?I remember in my 911_50 i used to turn the key slightly so that i can turn on the PSE then i would start-up the car this was the PSE sound comes with start-up. On the GT3 i can't seem to be able to turn the PSE on before engine start-up
02-26-2016, 04:36 PM
#3
Three Wheelin'
Thread Starter
02-26-2016, 04:43 PM
#4
Race Director
Basically what OCturbo said. You can't turn on PSE before starting. But the default position of the PSE exhaust flaps is open so when you first start the car you should hear a nice "bbrrraaappp..." through the open exhaust and then it quiets down as soon as engine vacuum hits the valves.
Whether the PSE button is pressed or not the ECU will control the valves for best performance depending on engine load and speed, so at rpms above about 4K you'll get some benefit either way when you get on the gas. But by pressing the button you'll optimize performance in that crucial low RPM range under 4K and you'll also get freer flow throughout the rev range as the exhaust flaps are more responsive.
Some of this stuff is fairly subtle but the bottom line is that the PSE is engineered to improve overall performance when it's engaged. It's definitely NOT true that the car performs better with PSE turned off. Now if you're referring to what happens if PSE is disconnected completely and the valves are wired open, that's a completely different discussion....
Whether the PSE button is pressed or not the ECU will control the valves for best performance depending on engine load and speed, so at rpms above about 4K you'll get some benefit either way when you get on the gas. But by pressing the button you'll optimize performance in that crucial low RPM range under 4K and you'll also get freer flow throughout the rev range as the exhaust flaps are more responsive.
Some of this stuff is fairly subtle but the bottom line is that the PSE is engineered to improve overall performance when it's engaged. It's definitely NOT true that the car performs better with PSE turned off. Now if you're referring to what happens if PSE is disconnected completely and the valves are wired open, that's a completely different discussion....
02-27-2016, 08:08 PM
#5
Rennlist Member
Related question if you don't mind. I have a GT3 and a 991C2S. In my C2S there is a big difference between PSE on and off. On the GT3 I cannot tell much of a difference if any. Side note: the car only has 25 miles on it so I'm not going above 4K RPM. Am I supposed to hear a big difference?
02-27-2016, 08:20 PM
#6
RL Community Team
Rennlist Member
Rennlist Member
Related question if you don't mind. I have a GT3 and a 991C2S. In my C2S there is a big difference between PSE on and off. On the GT3 I cannot tell much of a difference if any. Side note: the car only has 25 miles on it so I'm not going above 4K RPM. Am I supposed to hear a big difference?
02-27-2016, 08:54 PM
#7
Related question if you don't mind. I have a GT3 and a 991C2S. In my C2S there is a big difference between PSE on and off. On the GT3 I cannot tell much of a difference if any. Side note: the car only has 25 miles on it so I'm not going above 4K RPM. Am I supposed to hear a big difference?
Trending Topics
07-05-2021, 02:23 PM
#8
You're the first person I've encountered that claims PSE improves performance. It's called "performance" so it must improve performance. It costs almost $3K so it must, right? It IS louder and more baritone in character, but I can find no mention in any publication (or Porsche's site) that says it makes the car faster. Sport Chrono does and it's documented, and the pushbutton on the selector does implement a higher torque performance mode.
One thing Porsche did with the 992 is port induction noise into the cabin which improves the aural experience, even (maybe especially) with the windows closed. I'm in the distinct minority, but I don't find PSE to be a compelling option.
One thing Porsche did with the 992 is port induction noise into the cabin which improves the aural experience, even (maybe especially) with the windows closed. I'm in the distinct minority, but I don't find PSE to be a compelling option.
07-05-2021, 04:57 PM
#10
I apologize, I made the assumption we were discussing the 992 C2S. PSE is indeed standard on the GT3 and GTS, but an option on the base cars and turbos. SC is an option on the C and CS, and it does improve their 0-60 and 1/4 mile times.
07-05-2021, 05:10 PM
#11
You're the first person I've encountered that claims PSE improves performance. It's called "performance" so it must improve performance. It costs almost $3K so it must, right? It IS louder and more baritone in character, but I can find no mention in any publication (or Porsche's site) that says it makes the car faster. Sport Chrono does and it's documented, and the pushbutton on the selector does implement a higher torque performance mode.
One thing Porsche did with the 992 is port induction noise into the cabin which improves the aural experience, even (maybe especially) with the windows closed. I'm in the distinct minority, but I don't find PSE to be a compelling option.
One thing Porsche did with the 992 is port induction noise into the cabin which improves the aural experience, even (maybe especially) with the windows closed. I'm in the distinct minority, but I don't find PSE to be a compelling option.
time for another beer!!!
The following users liked this post:
Palting (07-05-2021)