991.1 PSE - no pops and crackles?
01-19-2018, 03:52 PM
#1
Cruisin'
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991.1 PSE - no pops and crackles?
After trying quite a few exhaust systems on my base 991, I decided to have PSE fitted.
by that, I mean that I’ve had the centre / side mufflers fitted along with a remote control to open / close the valves.
The sounds is definitely noticible but I don’t get all of the pops and crackles that you hear on the YouTube videos.
does anyone know why I’m not getting the pops and crackles I’m overrun? Could it be because I don’t have the sports exhaust button and associated software? (The assumption being that said software enhances The overrun sound so that it is pronounced on the PSE)
Things to note:
- the valves definitely work
- testing was done at full operating temperature
- I’ve tried with / without sports mode engaged (some slight burbles with sports mode but not very pronounced)
- the exhaust I’ve fitted is used, so should not need breaking in.
- my previous exhaust (IPE) had lots of pronounced pops and crackles at high revs.
Thanks in advance
mark
by that, I mean that I’ve had the centre / side mufflers fitted along with a remote control to open / close the valves.
The sounds is definitely noticible but I don’t get all of the pops and crackles that you hear on the YouTube videos.
does anyone know why I’m not getting the pops and crackles I’m overrun? Could it be because I don’t have the sports exhaust button and associated software? (The assumption being that said software enhances The overrun sound so that it is pronounced on the PSE)
Things to note:
- the valves definitely work
- testing was done at full operating temperature
- I’ve tried with / without sports mode engaged (some slight burbles with sports mode but not very pronounced)
- the exhaust I’ve fitted is used, so should not need breaking in.
- my previous exhaust (IPE) had lots of pronounced pops and crackles at high revs.
Thanks in advance
mark
01-19-2018, 03:56 PM
#2
When you get a dealer fit PSE (I did) they fit the button into the console and I believe they tell (program) the car it is now fitted. The pops and crackles are extra fuel exploding, so unless you have had that done, the computer does not know to spit extra fuel out.
01-19-2018, 04:07 PM
#3
Cruisin'
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That was my thought.
i know sports mode adds the overrun as when I had an x pipe fitted, it’s made loads of pops and bangs which was great, but that configuration in general was just too much of an undefined sound.
i might see if I can get my Indy to re-programme the car so that it knows that it has PSE fitted.
i know sports mode adds the overrun as when I had an x pipe fitted, it’s made loads of pops and bangs which was great, but that configuration in general was just too much of an undefined sound.
i might see if I can get my Indy to re-programme the car so that it knows that it has PSE fitted.
01-19-2018, 04:10 PM
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After trying quite a few exhaust systems on my base 991, I decided to have PSE fitted.
by that, I mean that I’ve had the centre / side mufflers fitted along with a remote control to open / close the valves.
The sounds is definitely noticible but I don’t get all of the pops and crackles that you hear on the YouTube videos.
does anyone know why I’m not getting the pops and crackles I’m overrun? Could it be because I don’t have the sports exhaust button and associated software? (The assumption being that said software enhances The overrun sound so that it is pronounced on the PSE)
Things to note:
- the valves definitely work
- testing was done at full operating temperature
- I’ve tried with / without sports mode engaged (some slight burbles with sports mode but not very pronounced)
- the exhaust I’ve fitted is used, so should not need breaking in.
- my previous exhaust (IPE) had lots of pronounced pops and crackles at high revs.
Thanks in advance
mark
by that, I mean that I’ve had the centre / side mufflers fitted along with a remote control to open / close the valves.
The sounds is definitely noticible but I don’t get all of the pops and crackles that you hear on the YouTube videos.
does anyone know why I’m not getting the pops and crackles I’m overrun? Could it be because I don’t have the sports exhaust button and associated software? (The assumption being that said software enhances The overrun sound so that it is pronounced on the PSE)
Things to note:
- the valves definitely work
- testing was done at full operating temperature
- I’ve tried with / without sports mode engaged (some slight burbles with sports mode but not very pronounced)
- the exhaust I’ve fitted is used, so should not need breaking in.
- my previous exhaust (IPE) had lots of pronounced pops and crackles at high revs.
Thanks in advance
mark
You obviously know what you're listening for. The IPE has very few pops in quiet mode. Do you get at least that amount? I'm sure you've tried coasting in lower gear from a high rev?
01-19-2018, 04:11 PM
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That was my thought.
i know sports mode adds the overrun as when I had an x pipe fitted, it’s made loads of pops and bangs which was great, but that configuration in general was just too much of an undefined sound.
i might see if I can get my Indy to re-programme the car so that it knows that it has PSE fitted.
i know sports mode adds the overrun as when I had an x pipe fitted, it’s made loads of pops and bangs which was great, but that configuration in general was just too much of an undefined sound.
i might see if I can get my Indy to re-programme the car so that it knows that it has PSE fitted.
01-19-2018, 04:20 PM
#6
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its just to loud to to use other than when I’m flooring it. Plus it’s annoying having to use the remote to turn it on, then to press sports mode to get the sound I want. What i’m Looking for is an exhaust that I can just leave on all of the time - like the Tubi I had on my 997.2. I figured the PSE (with valves unplugged) would fit that bill.
i get more pops than the IPE in quiet mode but they are very muffled and not very pronounced
01-19-2018, 04:23 PM
#7
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its just to loud to to use other than when I’m flooring it. Plus it’s annoying having to use the remote to turn it on, then to press sports mode to get the sound I want. What i’m Looking for is an exhaust that I can just leave on all of the time - like the Tubi I had on my 997.2. I figured the PSE (with valves unplugged) would fit that bill.
i get more pops than the IPE in quiet mode but they are very muffled and not very pronounced
Even with stock PSE though - I think the car starts in norman and quiet mode always. Can anyone confirm?
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01-19-2018, 04:33 PM
#8
Rennlist Member
I think you may just be used to IPE in beast mode. FWIW, you can get the PSE button programmed with any aftermarket exhaust with a valve just like PSE. Also, you can program the remotes to your garage door openers.
Even with stock PSE though - I think the car starts in norman and quiet mode always. Can anyone confirm?
Even with stock PSE though - I think the car starts in norman and quiet mode always. Can anyone confirm?
01-19-2018, 04:36 PM
#9
Race Car
01-19-2018, 09:36 PM
#10
That was my thought.
i know sports mode adds the overrun as when I had an x pipe fitted, it’s made loads of pops and bangs which was great, but that configuration in general was just too much of an undefined sound.
i might see if I can get my Indy to re-programme the car so that it knows that it has PSE fitted.
i know sports mode adds the overrun as when I had an x pipe fitted, it’s made loads of pops and bangs which was great, but that configuration in general was just too much of an undefined sound.
i might see if I can get my Indy to re-programme the car so that it knows that it has PSE fitted.
01-19-2018, 10:11 PM
#11
Do you have PDK.... if so, are you manually shifting or letting the car shift in auto? The pops and crackles happen on the overrun/letting off the gas but remaining in gear. The PDK in normal/standard auto will constantly hunt the correct gear and you won't quite the same sound. Also, I have noticed the car pops and crackles much more as it heats up.
01-19-2018, 10:52 PM
#12
Instructor
What kind of X Pipe? And did you ever have only the X Pipe (while keeping the stock side mufflers) on your 991.1? That's the setup I have (no PSE, Sharkwerks X Pipe with stock side mufflers). If so, would be curious to know differences you perceive between that and the PSE, in terms of volume at various RPM levels, and overall ferociousness.
01-19-2018, 11:15 PM
#13
07-27-2022, 01:48 PM
#14
I have PSE and aftermarket exhaust. Even if you had the PSE option (and PSE open) you wouldn't really hear the crackling in normal or sport+, only sport.
This is my car. Sport, PSE open/on. AWE Switchpath Exhaust.
This is my car. Sport, PSE open/on. AWE Switchpath Exhaust.