997.2 sound so unimpressive
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This is really one of my disappointments, specially at idle. So unimpressive. Totally not in sync with what the car is capable of. There is a post on a brother getting a new mustang, and i have to agree, these sound so much better. A friend of mine also has a stang and his also sound so much better than the pcar, a bit embarassed to start the car beside his. And his car cost so much less!
Gary
#47
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Whoa..pump your brakes a bit. Harley had their V twin sound before Dr. Porsche even designed his first VW. Porsche did work with HD ten years or so ago on their first water cooled engine, but they in no way created the "Harley sound".
Last edited by Fred R. C4S; 11-03-2012 at 11:57 PM. Reason: Spelling
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[...] I also said that piped-in acoustics trigger a psycho acoustic feeling of performance that is not really there, and hinted that some have reported being tired of it over time. And you are correct, other car lines are introducing the same feature (e.g., VW's Soundaktor), because it's easy to simulate virtual performance.
The challenge was a real one that the aftermarket can evade. At least for now. The law requires the cars to be quiet. Different degrees of quiet in different jurisdictions, but as a practical matter, the designers have been told to stop building different cars for different countries/states. So the design challenge is to produce good engine noises for the driver and passenger but not for bystanders. I don't know offhand how quiet the car must be at different rpm levels at different distances, but in places like Switzerland, the answer is very damned quiet at curbside.
So Marketing gives it funky names like "sound symposer" but the truth is the goal of so many owners is contrary to law for the engineers. They are not permitted to build a car whose sound will impress your buddies. Period. And odds are good that in some jurisdictions, we also won't be permitted to modify our exhausts after delivery for much longer. Cities like San Francisco and Berkeley come to mind.
That is what contrivances like "sound symposer" are all about. Satisfy the tests the law requires, while frustrating the law's intent. At least the owner gets to hear the sound of a fine engine. Win-win for law-constrained designers: you get to hear the Porsche engine at work, but people on the sidewalk do not.
Incidentally, as a fellow graduate engineer, Tony knows all these things. I just picked on a friend's post to quote so I wouldn't pick a fight with somebody. He'll just make me buy him a drink next time we meet to compare Porsches.
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Gary
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Sure, as Gary stated that's clearly why the Symposer exists. And the Symposer is actually done well and sounds great, unlike synthesized audio tracks others produce. I think it can also be turned off (a mechanical flap closes the acoustic channel) and people may actually do that after a while. ![Smilie](https://rennlist.com/forums/images/smilies/smile.gif)
As all things, acoustic beauty is in the ear of the beholder. The 991 exhaust sounds fine, by itself - just open the window. Heck, My 997.2S climbing up to redline signs just fine to me too.
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As all things, acoustic beauty is in the ear of the beholder. The 991 exhaust sounds fine, by itself - just open the window. Heck, My 997.2S climbing up to redline signs just fine to me too.