Pulled my EB intake swirly vane things
#1
Senior Member
Thread Starter
Pulled my EB intake swirly vane things
2014 EB.
Did it out of curiosity. So far, no real earth shattering change. I hear a bit more whistle and it just could be I feel a bit smoother acceleration.
No real point in the post other than to say I tried it. I read the gazillion thread posts on a forum and it turned into a hot mess. Can't remember the forum. But, I will run it like this for awhile. Took 5 minutes to pull them.
Did it out of curiosity. So far, no real earth shattering change. I hear a bit more whistle and it just could be I feel a bit smoother acceleration.
No real point in the post other than to say I tried it. I read the gazillion thread posts on a forum and it turned into a hot mess. Can't remember the forum. But, I will run it like this for awhile. Took 5 minutes to pull them.
#4
King Hater
I removed mine for a bit. No noticeable change. I ended up putting them back in after reading the post from the guy who designed them. There is a reason they are in there and a lot smarter guys than me designed them to do things Ill never know.
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MGD (12-31-2015)
#5
Member
Gotta link to this? I'm curious to read about their design intent.
#6
King Hater
I'll see if I can find it again. It was buried in a big thread
#7
Senior Member
Thread Starter
I read a lot of interesting information on them. The debate was noise suppression vs. airflow. I'm not smart enough to debate it so I pulled them for an unscientific test. In my uneducated opinion, any restriction in the inlet stream is not desirable. Turbos in a race car, or even in my old 7.3 diesel, are connected directly to a filter through an open inlet. The oxygen sensors adjust the AF to accommodate any minor changes.
In my unscientific test, I noticed slightly smoother acceleration and more whistle. Mpg hasn't changed. I'll run it for a bit longer.
In my unscientific test, I noticed slightly smoother acceleration and more whistle. Mpg hasn't changed. I'll run it for a bit longer.
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#8
King Hater
Found it: https://www.f150forum.com/f70/ecoboo...4/#post4065629
Post # 392
I work for a company that produces these blow molded turbo ducts for both the 2.7L and 3.5L TT engines. We also assemble the swirl vanes as part of the sub-assembly provided to FORD (tier 1) among other welded bellow and cuffs to them. I was the production engineer that worked directly with FORD Dearborn. The swirl vanes in question are injection molded product. The ridges are used to de-mould the product out of the tool. The newer vanes lack these because of the parting line associated with de-moulding has changed.
The vanes purpose are for NVH prevention. "Noise Vibration Harmonics". That means they will quiet the air stream by creating a air pre-swirl condition to the turbo impeller. They also provide a minor increase in spool time at lower RPM ranges during initial acceleration. In addition reduce the turbulance on the incoming air (K coefficient).
Post # 392
I work for a company that produces these blow molded turbo ducts for both the 2.7L and 3.5L TT engines. We also assemble the swirl vanes as part of the sub-assembly provided to FORD (tier 1) among other welded bellow and cuffs to them. I was the production engineer that worked directly with FORD Dearborn. The swirl vanes in question are injection molded product. The ridges are used to de-mould the product out of the tool. The newer vanes lack these because of the parting line associated with de-moulding has changed.
The vanes purpose are for NVH prevention. "Noise Vibration Harmonics". That means they will quiet the air stream by creating a air pre-swirl condition to the turbo impeller. They also provide a minor increase in spool time at lower RPM ranges during initial acceleration. In addition reduce the turbulance on the incoming air (K coefficient).
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#10
Senior Member
They are for noise, sweet sweet turbo noise. I took them out and left them out.