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Smog rating of the 991.2

 
Old 05-02-2018, 07:02 PM
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AnandN
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Default Smog rating of the 991.2

You folks must have seen the smog rating of the turbo sixes in the 991.2. It varies by state and you can look it up on fueleconomy.gov.
The new 911 scores an abysmal 1 rating on a scale of 1-10 in its class. The flat four turbos in the Boxster and Cayman fare better. Also for comparison, I looked by the F type which scores quite well. Even the Mustang with a V8 scores better with a 3.
I am somewhat disappointed. I suspect with these aftermarket exhaust systems ( that I have been researching) and their reduced cell count in the catalytic converters, emissions will be much worse.
Of course people will dismiss this and say that the 911 is a performance car and who cares about emissions etc. But Porsche should.And not just CO2 emissions. I suspect they will.
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Old 05-02-2018, 08:02 PM
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Old 05-02-2018, 08:06 PM
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Originally Posted by AnandN View Post
...Of course people will dismiss this and say that the 911 is a performance car and who cares about emissions etc. But Porsche should...
Well, that's a shame. I am with you. You'd think coming from a 3.8 to a 3.0 that things are heading in the right direction. And, that these tried and true engines are becoming "finely oiled machine" ...or... maybe that's the problem (metaphorically).
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Old 05-02-2018, 08:13 PM
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Everyone likes the smell of their own emissions.


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Old 05-02-2018, 08:20 PM
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Don't worry. You'll be able to buy a Mission E soon.
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Old 05-02-2018, 08:28 PM
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Mission E = Yes. Bring it on.

Mission E Cross Turismo = No! Why do I need to SUV'ise my four-door.. And, why did I need four doors, again?
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Old 05-02-2018, 08:29 PM
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Why do I need a car without an engine?
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Old 05-02-2018, 08:33 PM
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To go fast, powered by your home's solar panels?
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Old 05-02-2018, 08:35 PM
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OP, please post these findings, like screen shots of whatever site you're referring to. Not sure I believe it the 911 is the worst in its class. (What class is that, BTW?)

Also, yeah, you sort of answered your own question. Bottom line, the more horsepower an engine produces, the more gasoline it burns, and the more emissions it creates. Turbocharging can make an engine more efficient, and cats can remove pollutants from the exhaust. But there's no way to make a 400hp engine pollute the same as a 150hp engine. If you want 150hp emissions, you're gonna have to get a 150hp car.
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Old 05-02-2018, 08:36 PM
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Didn't know the 911 was slow to start. I'll stick with high revs and real sound enjoyment.

Don't worry, Mission E will have electronic sounds pumped though the cabin to re-train the next generation of how a car should sound.
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Old 05-02-2018, 08:38 PM
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Yeah, but a 911 or sports car and complain about emissions. Like mentioned buy a Prius and donate the rest of the cash to some earth group.
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Old 05-02-2018, 08:39 PM
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I have been aware of the relatively poor smog rating for my 2018 car since taking delivery last year. I was very surprised. Recently, I have been looking at aftermarket exhaust systems and of course none of them ( from what I can tell) have posted any data on how emissions are affected. Going from the pits to what?
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Old 05-02-2018, 08:40 PM
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The only thing that will affect emissions in an exhaust is the cats. If you want more sound you don't have to touch the cats, you can change mufflers.
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Old 05-02-2018, 08:43 PM
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Originally Posted by Churchill View Post
OP, please post these findings, like screen shots of whatever site you're referring to. Not sure I believe it the 911 is the worst in its class. (What class is that, BTW?)

Also, yeah, you sort of answered your own question. Bottom line, the more horsepower an engine produces, the more gasoline it burns, and the more emissions it creates. Turbocharging can make an engine more efficient, and cats can remove pollutants from the exhaust. But there's no way to make a 400hp engine pollute the same as a 150hp engine. If you want 150hp emissions, you're gonna have to get a 150hp car.
https://www.fueleconomy.gov/feg/Find.do?action=sbs&id=39205&#tab2

I thought I made it clear. Small cars are classified in a bunch. Stricter emission standards for 2018. Look up fueleconomy.gov. Check MA or NH for emissions from Minis, Mustangs, F types etc. And it is not directly correlated with hp. The V8 in the Mustang for example. It is how well the emisisons are scrubbed before they are discharged into the atmosphere.
I know these sorts of topics will elicit responses such as buy a Prious etc. What are you, a hippie tree-hugging communist etc? But one can be an enthusiast and care about emissions at the same time. No?

Last edited by AnandN; 05-02-2018 at 09:03 PM.
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Old 05-02-2018, 09:01 PM
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Originally Posted by STG View Post
Yeah, but a 911 or sports car and complain about emissions. Like mentioned buy a Prius and donate the rest of the cash to some earth group.
Amen Brother!!!

I cannot imagine a world where people desire to be driven around by autonomous electric coffins but sadly it will be forced on us soon enough.
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