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Old 06-25-2013, 11:15 AM   #1
replica81
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Duratec sounds like farm equipment

Over the last few months of getting to know my car, I've become increasingly annoyed at the tone of the engine. It has a particular baritone hum to it. As well as a thrashy, agricultural sound. A friend of mine has a Ranger with the 2.3 Duratec and its motor sound nearly identical in its lack of passion for existing.

Does anyone else find the sound of the Duratec slightly annoying? Mine is well maintained and runs perfect. It just has a sound to it that gets on my nerves from time to time. The exhaust note is tiresome.


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Old 06-25-2013, 02:01 PM   #2
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Originally Posted by replica81 View Post
Over the last few months of getting to know my car, I've become increasingly annoyed at the tone of the engine. It has a particular baritone hum to it. As well as a thrashy, agricultural sound. A friend of mine has a Ranger with the 2.3 Duratec and its motor sound nearly identical in its lack of passion for existing.

Does anyone else find the sound of the Duratec slightly annoying? Mine is well maintained and runs perfect. It just has a sound to it that gets on my nerves from time to time. The exhaust note is tiresome.
Well your ST has a larger exhaust than a regular ZX4 and no resonator. So it's louder than most stock Foci on the road. But I've never thought the STs I've heard, been in sounded bad. I agree the Duratec is not a shining example of smoothness like a B or K-series Honda though.
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Old 06-25-2013, 03:18 PM   #3
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I enjoyed mine with full bolt-ons, but the cosworth manifold really changed the tone.

The short trumpets + aluminum construction make for a very nice sound.


also you should hear my neon's sohc if you think the focus is bad. it'd be right at home in a tractor
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Old 06-25-2013, 10:54 PM   #4
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also you should hear my neon's sohc if you think the focus is bad. it'd be right at home in a tractor
Ahhhh, that wonderful Chrysler tick. Been there, done that many times over lol.
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Old 06-28-2013, 01:21 PM   #5
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It's not a quiet motor, that's for sure. I have the most issue with the noise right around 2.5k RPMS. It just sounds loud and boggy. I know for a fact it didn't sound that way the first year I had it. Everything was quiet.

But alas, even with the slight idle rev bounce, it always turns over, it always runs, and it can even be fun to drive.
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Old 06-28-2013, 01:47 PM   #6
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I've never met a 4cyl that I wanted to listen to, but my 2.0 isn't terrible. I know there are some differences between 08+ and 05-07 as far as sound deadening so that might be the case here.

If the drone is too unbearable, you might consider adding sound deadening under the carpet, behind the dash, under the trunk liner, etc.
Or an aftermarket resonator.

You can also buy resonator exhaust tips that project more sound outward, but may reduce drone on the inside.
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Old 06-28-2013, 02:47 PM   #7
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I've never met a 4cyl that I wanted to listen to
No subie love?


Agreed though, most 4cyl engines arent anything to write home about. Ive never been impressed by any i4 sound.
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Old 06-28-2013, 03:21 PM   #8
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No subie love?
That's the worst of them!
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Old 06-29-2013, 09:15 PM   #9
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Try a flat crank & 180 degree headers on a v/8.
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Old 07-02-2013, 01:21 PM   #10
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You can change the sound characteristics related to breathing, but cannot change the sound characteristics related to mechanics. As long as you don't find all 4 cylinder engines to be objectionable sounding, you can likely find an intake/exhaust setup that produces an appreciably more pleasing tone to your ear. Unfortunately without finding somebody with a setup that has the sound you want to copy, there could be a lot of trial and error involved to get it 'just right'. I personally find that intake noise on 4-cylinder engines generally tends to be more pleasant than exhaust noise for some reason.

Subaru's, IMHO one of the most characteristically lazy/agricultural sounding of all gasoline fed 4-cylinder engines, only sound that way because of their heavily compromised exhaust manifold design. Put equal (or at least similar) length primary tube headers on it, and it'll pretty much sound like a typical I4. Conversely, it's entirely possible to make a Honda sound very much like a Subaru with just the wrong header design.

This is also the same reason a set of 180* headers can be used to help a cross-plane (traditional) crank V8 sound more like a flat-plane (exotic) crank V8...But also to the point above about mechanical characteristics that cannot be changed, due to the pulse frequency and overlap, a 4-cyl can not be made to really sound like an 8-cyl.

Long story short, something like a resonated cat-back exhaust and a CAI might be a good starting point to help it sound a bit better...But I'll leave it to the people who actually drive Foci to give more specific product recommendations.
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