Cold Air Intake Question

[tj@steeda]

I've heard the Steeda CAI with the adapter insert also shows good upgrade and doesn't require a tune. When ready, remove the insert and add a tune.

That is accurate - you get the best of both worlds!

TJ

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[texasboy21]

IF the stock airbox is so good, then why did FORD engineers go with a open air design on the GT350/GT350R and other performance versions?

Why does the GT4 Mustangs use a sealed airbox?

 

[Nuked]

Why does the GT4 Mustangs use a sealed airbox?

It's an interesting question, and if you dig deeper why does the 2018+ use a larger diameter intake pipe stock than the 15-17 and GT350?


https://www.mustang6g.com/forums/showthread.php?t=105983

Would love to have a conversation with the engineers to hear their reasoning.

 

[smoke_wagon_6g]

It's an interesting question, and if you dig deeper why does the 2018+ use a larger diameter intake pipe stock than the 15-17 and GT350?


https://www.mustang6g.com/forums/showthread.php?t=105983

Would love to have a conversation with the engineers to hear their reasoning.

The 2018 engine makes more power. Has larger displacement. Different fuel injection setup. Other modifications. These are the real reasons for the HP bump. Putting an intake for the 2018 Coyote on a 15-17 won't suddenly give it any horsepower. But try it anyway.

 

[Nuked]

The 2018 engine makes more power. Has larger displacement. Different fuel injection setup. Other modifications. These are the real reasons for the HP bump. Putting an intake for the 2018 Coyote on a 15-17 won't suddenly give it any horsepower. But try it anyway.

What are you talking about? No one stated the 2018 makes more power due to the intake. We are discusing why some have open element and some closed box. I also added the fact that the 2018 has a larger diameter tube, again going back to what the engineers found. You can't just say it is because it makes more power since the GT350 makes more than a 2018 but has a smaller diameter intake pipe w/ an open element filter.

 

[dgc333]

IF the stock airbox is so good, then why did FORD engineers go with a open air design on the GT350/GT350R and other performance versions?

I have the FP kit with that CAI. The rubber lip that goes around the top seals to the bottom side of the hood and the housing picks up air from the same opening in the core support as the stock box.

Effectively you have closed air box like stock with filter with a lot more surface area and the geewhiz factor of a CAI.

 

[texasboy21]

It's an interesting question, and if you dig deeper why does the 2018+ use a larger diameter intake pipe stock than the 15-17 and GT350?


https://www.mustang6g.com/forums/showthread.php?t=105983

Would love to have a conversation with the engineers to hear their reasoning.

As would I! It is my understanding that as engine size and power/airflow increase a larger diameter MAF housing and ducting has its benefits.

I too believe that the open element intakes are more for a 'wow factor' than performance, as evident on their production race cars that are purely function over form.

 

[smoke_wagon_6g]

What are you talking about? No one stated the 2018 makes more power due to the intake. We are discusing why some have open element and some closed box. I also added the fact that the 2018 has a larger diameter tube, again going back to what the engineers found. You can't just say it is because it makes more power since the GT350 makes more than a 2018 but has a smaller diameter intake pipe w/ an open element filter.

My bad. I got mixed up.

You know the more I look into this there really isn't a linear relationship between intake tube size and horsepower. A big tube may have bad flow and a smaller one can have better flow. And since flow varies with RPM it gets complicated. A small tube may have better flow at larger RPM ranges. This reminds me of choosing intake manifolds back in the day, the highest flow intake just wasn't the best all around. The tunnel rams had bad idle and low end torque but huge flow. You needed to change cams to tune, etc.

The stock intake is good for way more than stock HP, and the CAIs everyone is slapping on don't seem like they do anything but sound louder. Maybe that's why the performance variants have the open filter as another poster said?

 

[apex15stangPP]

IF the stock airbox is so good, then why did FORD engineers go with a open air design on the GT350/GT350R and other performance versions?

Marketing

 

[apex15stangPP]

The 2018 engine makes more power. Has larger displacement. Different fuel injection setup. Other modifications. These are the real reasons for the HP bump. Putting an intake for the 2018 Coyote on a 15-17 won't suddenly give it any horsepower. But try it anyway.

TBD

 

[apex15stangPP]

That is accurate - you get the best of both worlds!

TJ

Or this new closed box intake?? What happened here?

 

[GianH]

So does the 2018 stock air intake assembly fit well in the previous years from 15 to 17 I have 2017 GT but just a little worried that the assembly wont fit because of the 2018 bumber facelift so I think the air duct sits a little differently in 2018 and won't fit in a 2017???

 

[Zelek]

So does the 2018 stock air intake assembly fit well in the previous years from 15 to 17 I have 2017 GT but just a little worried that the assembly wont fit because of the 2018 bumber facelift so I think the air duct sits a little differently in 2018 and won't fit in a 2017???

I'm running it right now and there are no issues.

 

[4V Mayhem]

I'm no fan of that ugly stock box. The price of an intake just to improve the looks under the hood is worth it. It won't lose power. And your underhood won't look like every other GT on the planet off the assembly line. And some of the closed systems will still let you hear the cool whistle sound. All worthwhile if you ask me. There's literally no benefit to keeping the stock box unless you can't afford an intake or don't want to spend the money.

 

[4V Mayhem]

Stock box and tubes are an eyesore.

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