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Issues after installing air filter directly to turbo.

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Old 01-18-15, 10:46 AM
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JustAnotherFC

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Issues after installing air filter directly to turbo.

O.k here's the deal.

I recently noticed a tear in my air filter. So, I ordered the Spectre HPR9831.
9831 - Spectre , Cartridge Filter/Airbox.
With the previous filter I had a 4" intake that was approximately 10 inches long. I took it off..
I took the Spectre filter out of the "can" and cinched it directly to the turbo.
HPR9831 - Spectre , Air Filter 7.0 in Tall.

Under full throttle I noticed the car makes a staged noise in the turbo intake and seems
like a plugged filter. The filter should flow enough but hard to say at this point.

I have now reinstalled a portion of the 4" intake and I am using the "can" to see if
having the filter TOO close to the turbo is causing some sort of interference with airflow. Turbulence or some issue I did not foresee.

My question; has anyone had issues having the air filter mounted directly onto their turbo?

Later tonight I will test drive the car and report back. I am anxious see if simply moving
the air filter farther away from the mouth of the turbo will give it a little more breathing room.

Attached are a couple pics.. (Please understand that the intercooler piping has yet to be welded and the black 90* elbow will be removed soon).
Attached Thumbnails Issues after installing air filter directly to turbo.-20150101_145457.jpg   Issues after installing air filter directly to turbo.-20150115_194208.jpg   Issues after installing air filter directly to turbo.-2013-11-14-18.52.38.jpg  

Last edited by misterstyx69; 01-18-15 at 06:25 PM.
Old 01-18-15, 08:50 PM
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JustAnotherFC

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Not sure what the science is behind this particular issue, but reinstalling the intake pipe made all the difference in the world. Issue is gone.
Old 01-19-15, 09:57 AM
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maybe what you are hearing is Compressor surge.
I've got a Vibrant 4 inch on my Turbo and got zero issues.
Old 01-19-15, 05:18 PM
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JustAnotherFC

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Originally Posted by misterstyx69
maybe what you are hearing is Compressor surge.
I've got a Vibrant 4 inch on my Turbo and got zero issues.
That's exactly what I thought! I just wanted to hear someone else come up with the same idea..Thank you for confirming.

Like I said, it has disappeared now that I moved the filter farther away from the turbo.

The Comp unit I have has an anti-surge compressor housing. Maybe that's why it sounded the way it did.
I was trying to explain to my wife the sound it was making. I sucked air into my mouth through my teeth as I did this
I took a tissue paper and put it over my mouth. Same sound my shop vac makes when it falls over.

Thanks again.

Cheers,

Joe
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