Batting material under engine cover

[spireland]

Anyone know what the purpose is of the batting underneath the Ecoboost's engine cover? I took it off today and was surprised to find it.

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[dragonacc]

Noise reduction. Direct injectors are noisy.

 

[EnFOURcer]

Noise reduction. Direct injectors are noisy.

Exactly!

 

[spireland]

Noise reduction. Direct injectors are noisy.

Thanks for the heads up, hadn't realized that. Now I kind of want to see what they sound like.

 

[neodark]

click, click, click...

 

[ultimate warrior]

click, click, click...

just to be clear, if you're 25mph cruising, and you start to get into boost , it starts ticking loud and sounds like an exhaust leak while its spooling right?

just making sure my shitbox sounds like everyone elses.

 

[EcoSwag1990]

I don't hear any ticking when I accelerate. Only when car is idling and I'm standing outside of it. Though I don't remember what it sounded like when exhaust was silent. That sounds like you might be describing low rpm lugging

 

[ronv95]

just to be clear, if you're 25mph cruising, and you start to get into boost , it starts ticking loud and sounds like an exhaust leak while its spooling right?

just making sure my shitbox sounds like everyone elses.

that's correct

 

[AR306]

Yeah at slow acceleration/low speed the ticking in mine gets noticeably louder until you get into boost then it's replaced by pfffffffffffssssssst psshss

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