Why don't Porsche turbo cars sound as good as their N/A cars?
#2
Addict
Rennlist Member
Rennlist Member
I haven't heard the newer turbo AMG's, but turbochargers are serious blockages right in the exhaust path. So, it's natural that it would affect the exhaust sound (my Evo is streetable with no cat nor muffler due to the natural muffling of the turbo).
#3
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Join Date: Aug 2013
Location: Castle Rock, CO
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Yep, basically you are hearing the sound of the turbine spinning more then the engine note. I am a big fan of the turbos but at the track the GT3 cars make the Turbos sound like little toys.
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usrodeo4 (05-14-2021)
#5
Rennlist Member
Think of the two turbochargers as two very effective mufflers absorbing most of the exhaust energy (sound) since that energy is what spins the turbochargers.
#6
Race Director
Porsche has the ability to to make their turbos sound way better. IMO theyre unwilling for the standard Turbos.
its sad that my neighbor bmw 335 sounded better than my TT.
You have to go to the after mkt to get good sound. Europipe and Cargraphics are my favs.
its sad that my neighbor bmw 335 sounded better than my TT.
You have to go to the after mkt to get good sound. Europipe and Cargraphics are my favs.
#7
Burning Brakes
I can tell from my own experience that the 991 Turbo S sound a lot better than the 997 TTS. Still no comparison to the GT3 of course, but it's a lot better than before.
Suzy991
Suzy991
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#8
Rennlist Member
Sound is muffled and distorted by the flow through the Turbos. Extra boost is is rerouted back through the wastage instead of being dumped outside like the the 930s & 965s.
That said with the right aftermarket exhaust They sound ferocious !
Elliot
That said with the right aftermarket exhaust They sound ferocious !
Elliot
#11
Cargraphic Loud on my 997 TT was perfect.
#13
Burning Brakes
For people that are interested in those, the price of the titanium tailpipes is EUR 952 in Germany (incl. 19% VAT)
Suzy991
#14
From what I've read on Rennteam, they did look to offer a Sport exhaust, but it was difficult and very expensive to make (titanium) and they never were really satisfied with the results they got with it, so they decided not to offer a PSE for the Turbo. They only offer polished titanium double round Sport tailpipes (available from march 2014). But those will probably not change the sound
For people that are interested in those, the price of the titanium tailpipes is EUR 952 in Germany (incl. 19% VAT)
Suzy991
For people that are interested in those, the price of the titanium tailpipes is EUR 952 in Germany (incl. 19% VAT)
Suzy991
#15
Burning Brakes
I understand what you're saying, but there are many aftermarket options available and those companies make it work. It doesn't even have to be a valved system or titanium, just something like a Europipe Stage 1. It gives a sporty sound, but it's not overbearing. If that was available through Porsche, I bet a lot of people would order it. Plus, it wouldn't be as expensive as a valved PSE.
To keep within the regulations, set for car manufacturers like Porsche, they had to make a complicated exhaust to meet their requirements of sound. This was too complicated and/or too expensive and that's why they decided not to offer one.
So after market is the way to go...
I'm pretty sure that If Porsche had been able to produce one to their liking and requirements, within the regulations and it was marketable, that they would have offered it. We all know how they like to offer numerous options.
Suzy991