Filter on turbo vs cold air intake? Any back to back test?
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From: Northwest side of Chicago
Filter on turbo vs cold air intake? Any back to back test? Right now I have a pretty standard setup of truck/c6 manild hot side that places the turbo right in front of the balancer. The hot air off the radiator blows right on the turbo that has a medium size k&n on it. I was debating on building a "cold air intake". Its going to be kinda a pain due to space issues so I wanted to see some real world numbers or track times on the differance.
I also am considering switching from a large ebay intercooler to a better quality name brand IC as my tuner sugested.
Alex
I also am considering switching from a large ebay intercooler to a better quality name brand IC as my tuner sugested.
Alex
I have the budget phamspeed hot side which also places the turbo right in front of the crank pulley. I initially just had the traditional filter right off the turbo due to ease of figment etc. I relocated the battery to the trunk and ran large 4" piping to where the battery was and ran a huge cone filter so it'd suck cooler air from the fender. I noticed a faster spool, lower iats, and lower coolant temps.
not a turbo but i know of a truck procharger set up where the air intake is right next to the exhaust manifold. it gets very warm air. the guy built a 130deg 4" intake pipe that put the filter in a much better spot. instantly lost 30hp. took it off and the 30hp came right back.
i also saw nice gains with a whipple by opening up the air box which gave it warmer air but less restriction.
that being said both of those are pully driven with no feed back(waste gate). i am sure a turbo is different.
if it were mine i would extend it to a cooler spot only if it was a very simple pipe, no more than one 90 and only 1-2' long. any more than that and i would just leave it sucking warm air.
i also saw nice gains with a whipple by opening up the air box which gave it warmer air but less restriction.
that being said both of those are pully driven with no feed back(waste gate). i am sure a turbo is different.
if it were mine i would extend it to a cooler spot only if it was a very simple pipe, no more than one 90 and only 1-2' long. any more than that and i would just leave it sucking warm air.
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From: Joliet,IL and Las Vegas 50/50
I'm going to try something because I have a short 4" cone filter on the turbo and it's super restrictive. Gained 20-30whp by just removing it, but more concerning is my IAT's raised about 20 degrees with the filter and I tappered back on boost up top. The filter is sucking itself in and causing the turbo to work harder, but I can't put a larger one on it as it's right up against the frame. We are going to try a 90 degree bend down and pop the filter on it. Nothing to crazy, just enough for the full size K&n to fit.
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Brett Foote 9 Second Club
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From: Joliet,IL and Las Vegas 50/50
The one that is on the car ATM is made by AEM and is like a K&N except you don't have to re-oil it. It was one of the shortest 4" cones I could find, but it's starting to cave in on itself.
Here is a pic of the filter that is on there.
Here is a pic of the filter I originally bought.
I can't run it over to the battery area because I have the charge pipe coming up through there, my vacuum manifold is there and I still have to hook up my AC. Best bet is 90 straight down.
Here is a pic of the filter that is on there.
Here is a pic of the filter I originally bought.
I can't run it over to the battery area because I have the charge pipe coming up through there, my vacuum manifold is there and I still have to hook up my AC. Best bet is 90 straight down.
9 Second Club
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From: Joliet,IL and Las Vegas 50/50
Yeah, I'm not sure, maybe. The least restrictive filter is no filter. 
I have HPTuners so I can do a couple pulls and monitor my IAT's to see if they skyrocket again and if boost tapers up top. I don't mind losing a couple HP to have a filter. I just don't want hi IAT's come summer
I have HPTuners so I can do a couple pulls and monitor my IAT's to see if they skyrocket again and if boost tapers up top. I don't mind losing a couple HP to have a filter. I just don't want hi IAT's come summer
On my car I lost 7hp taking it off, and picked it back up with the filter back on when I had the T6 76 making 623rwhp.
id like to see more info on this too as i have yet to buy a filter.. i have plenty of room for one directly off the turbo.
What about running a screen? ive heard they really disrupt incoming airflow but id like to hear more on that too..
What about running a screen? ive heard they really disrupt incoming airflow but id like to hear more on that too..
Staging Lane
Joined: Dec 2010
Posts: 60
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In to see what people are running in high hp applications, 1000whp+
I was hoping i didn't have to run 2 air filters on my single turbo. My old setup had a full size K&N filter that started caving in around 550whp.
I was hoping i didn't have to run 2 air filters on my single turbo. My old setup had a full size K&N filter that started caving in around 550whp.
RPS has some good open end cone filters in 6 and 9 inch long that would work good either directly on the turbo( they have up to 5 inch inlets) or on any intake piping as well.