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I'm sure you can make a car that's quieter than these limits no matter how you drive them; they were designed to be loud because some people think it's cool. E

I'm sure you can make a car that's quieter than these limits no matter how you drive them; they were designed to be loud because some people think it's cool. EDIT: Not sure why this is getting downvoted. Look at the ad copy of some of these cars. https://www.ford.com/cars/mustang/ https://www.ford.com/cars/mustang/ Literally the first line is "Hear the roar of a Mustang..."

neoromantique 4y ago
These cars being /performance/ oriented might be a hint. For a car to go fast it needs air, like a lot of air, air that engine needs to dispose of quickly in order to get a fresh batch, and adding complex muffler systems limits how much airflow you can have. Add to that ecological requirements and you have a very tight margin that car manufacturer can tweak in. Also just because car can sound loud when driven in full throttle, doesn't mean it has to. It is on the driver if he chooses to be a nuisance, not manufacturer(Straight piping an old beater car is dirt cheap, having a hole in exhaust is even 'cheaper' and is much louder than any of the expensive, performance oriented cars in question.
- dsizzle 4y ago
  Turbo makes a car faster and increases air intake -- yet make an engine quieter, not louder https://www.torque.com.sg/features/turbocharged-cars-why-quieter-than-non-turbo/ https://www.torque.com.sg/features/turbocharged-cars-why-qui...
  - neoromantique 4y ago
    This is true, but when we talk about performance oriented vehicles my initial point still stands. All turbo does is put more air into intake, that air still has to leave somehow.
- KennyBlanken 4y ago
  Exhaust back-pressure is beneficial to a degree. You know not what you talk about.
  - neoromantique 4y ago
    Building cars is my hobby so I do know that it is more nuanced, but once again, this does not refute my initial point. You do need some back-pressure to siphon back, but the amount is very limited, especially when we compare it to the sheer amount of air mass that those cars are moving. Just so it doesn’t get lost — my point is, sports cars being loud when they’re full throttle is not a problem and never was, realistically you wouldn’t drive them that way outside of a racing track anyway. The fact that people still do it and annoy everyone else is a people problem, not a car problem.

neoromantique 4y ago

These cars being /performance/ oriented might be a hint. For a car to go fast it needs air, like a lot of air, air that engine needs to dispose of quickly in order to get a fresh batch, and adding complex muffler systems limits how much airflow you can have. Add to that ecological requirements and you have a very tight margin that car manufacturer can tweak in. Also just because car can sound loud when driven in full throttle, doesn't mean it has to. It is on the driver if he chooses to be a nuisance, not manufacturer(Straight piping an old beater car is dirt cheap, having a hole in exhaust is even 'cheaper' and is much louder than any of the expensive, performance oriented cars in question.

dsizzle 4y ago
Turbo makes a car faster and increases air intake -- yet make an engine quieter, not louder https://www.torque.com.sg/features/turbocharged-cars-why-quieter-than-non-turbo/ https://www.torque.com.sg/features/turbocharged-cars-why-qui...
- neoromantique 4y ago
  This is true, but when we talk about performance oriented vehicles my initial point still stands. All turbo does is put more air into intake, that air still has to leave somehow.
KennyBlanken 4y ago
Exhaust back-pressure is beneficial to a degree. You know not what you talk about.
- neoromantique 4y ago
  Building cars is my hobby so I do know that it is more nuanced, but once again, this does not refute my initial point. You do need some back-pressure to siphon back, but the amount is very limited, especially when we compare it to the sheer amount of air mass that those cars are moving. Just so it doesn’t get lost — my point is, sports cars being loud when they’re full throttle is not a problem and never was, realistically you wouldn’t drive them that way outside of a racing track anyway. The fact that people still do it and annoy everyone else is a people problem, not a car problem.