4 Cyl noise (versus, engine, emissions, Volkswagen)

[jazznblues]

Originally Posted by Drover

Let me guess, Kia Sportage?

Inline 4-cylinder engines kinda suck, and the vibration problems can get particularly annoying under load.

I really wish there was more than one company using flat-4s.

A flat four can be an inline four. But perhaps you mean a boxer 4 - with horizontally opposed cylinders.

[Drover]

Originally Posted by jazznblues

A flat four can be an inline four. But perhaps you mean a boxer 4 - with horizontally opposed cylinders.

Uhm... what?

[T. Damon]

Originally Posted by Drover

Uhm... what?

I'm trying very hard to think of any car that has had a flat inline 4 configuration as well.

[MustangEater82]

I doubt it if the car is new, but I would inspect the intake, see if a clamp or something came loose. It will make the engine sound louder.

[tstone]

Originally Posted by Flyover_Country

Four-bangers will sound pretty coarse and buzzy to those of us used to hearing the much smoother sounds of a six-cylinder or larger engine. The coarseness sometimes makes the engine sound louder than it really is. The turbos probably don't help with their whistling and wastegate blow-off either.

This. All inline 4 cylinder engines have an inherent buzz and vibration.

http://en.wikipedia.org/wiki/Inline-...and_smoothness

[Pretzelogik]

The direct fuel injection creates extra "noise" if you have never owned one.

[NJGOAT]

Originally Posted by jazznblues

A flat four can be an inline four. But perhaps you mean a boxer 4 - with horizontally opposed cylinders.

Originally Posted by Drover

Uhm... what?

Originally Posted by T. Damon

I'm trying very hard to think of any car that has had a flat inline 4 configuration as well.

There is no such thing as an "inline flat 4". It is either a flat-4 (aka boxer-4 (called a "boxer" because the pistons look like two boxers fighting), aka horizontally-opposed-4) or an inline-4.

[Novadhd5150]

I used to have straight 6 in my old Z. Those things were fast ..One day ill have another. I guess inline is just another term for straight.
So what makes a 4cyl "course" and not a 6cyl. Well between the Turbos, direct port inject (whatever that is) and the course noise i better get used to it..I have had 6 Cyl Suv for long time so not used to it.

[hoffdano]

Originally Posted by NJGOAT

There is no such thing as an "inline flat 4". It is either a flat-4 (aka boxer-4 (called a "boxer" because the pistons look like two boxers fighting), aka horizontally-opposed-4) or an inline-4.

Any inline engine can be a "flat" engine. Just rotate the block so the pistons move horizontally. Just like any inline engine can be a "slant" engine by tilting it from vertical.

Boxer engines are always "flat" because the engine is so wide that it can't realistically be mounted any other way. (no advantage to mounting it that way anyway).

[Drover]

Oh good Lord.

I'm not sure what universe you live in, but in the one I inhabit, I have never seen a "flat" inline-4, nor have I ever heard the term "flat 4" to apply to anything but a boxer.

There, are we all clear on the intended meaning now?