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HOMEMADE $7 Turbo Filter

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Gruff511

10+ Year Contributor
196
0
Mar 20, 2011
Fl, Florida
First off My purpose and experience with this method of filter has been beneficial as Ive recorded increased spool time and have seen an average of 25+ Increase HP Making a Metal screen inlet filter for turbo. For those of you out there looking to NOT run an air filter on your turbo then this type of filter would provide a similar advantage of a filter.
The metal mesh allows No restriction on the turbo inlet as well as giving the turbo some protection against small rocks or any debris getting sucked in.
Here are some pics of the basic steps in what needs to be done.

I say $7 filter because all I needed to buy was this metal screen material and I had a couple buddies that wanted to do this as well so they threw down a couple dollars also, so in end I only spent a few dollars.
You get A LOT of material to do quite a few if you needed to. At least you will have extra material if you mess up or replace it.
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You first need to cut sections large enough to overlap over the pipe(or turbo inlet) and stack the layers of screen on one another so the holes in the screen mesh together and you have even Finer holes then originally.
And I just used a hose clamp to hold the screen on tight.
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And now all thats left is to cut off the excess screening, I used a dremel to cut the metal screen clean around the clamp.
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Now everything is finished that the end product can be installed on the vehicle. And in this pic you can see clearly through the mesh and its fine enough that no rocks or anything small cant fit through it.
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Hope everyone can get some use from this Article if trying to do this on your own. A lot of people may disagree with this method as some people have reported their car not running properly without an air filter. SO before you attempt this be sure you know your engine will still run as normal without an inlet filter. i.e-if your motor has a MAF sensor before the turbo then you cant remove it to run no filter on the turbo, the screen would need to be placed before the MAF sensor on the inlet pipe.

If anyone has any opinions or ideas on how to improve on this then feel free to comment.
 

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Um.. kind of. Have you ever taken a science class?? Everything expands the hotter it gets. Gasses become less dense (read: less molecules of that gas in the same size square cube) as they get hotter.

The thing you'd be looking at is air DENSITY - cooler air is more dense. More dense : more power. Also, keeping things cool means less knock, which means less potential damage.
 
Dirt is hard on piston rings. I have forged pistons and I still run a filter. Not to mention that chewing up a turbine wheel sucks ass too.
 
for the ducting system to the intake you need to have a fmic then where the ducting sytem for the smic was that went to the core you hook a pipe to it so air will be forced into it while driving then you follow up where the side mount intercooler pipes ran which the hole where the pipe ran through in the body is next to the intake then you jus box off the cone and your allset :D
 
Lol, I don't know why people get so upset about other peoples mods. I ran a SINGLE layer of stainlees steel mesh on my hx35 for almost two years with no ill effects. The only problem is like previously stated, the air isn't getting "filtered"your just keeping debris out. My turbos comp wheel was in fact dirty as with most of the I.c. Piping. I only ran this set up because of my limited space under the colts hood.
 
Lol, I don't know why people get so upset about other peoples mods. I ran a SINGLE layer of stainlees steel mesh on my hx35 for almost two years with no ill effects. The only problem is like previously stated, the air isn't getting "filtered"your just keeping debris out. My turbos comp wheel was in fact dirty as with most of the I.c. Piping. I only ran this set up because of my limited space under the colts hood.

No one is getting upset. It is more about not giving people the impression that this is ok to do on a daily driver. People will see a write up like this and think that it is a good idea and that they will gain 25 horsepower like the original poster stated, which is not true on either account.
 
If i were you i would return your mesh back or im sure ill be seeing you posting in the maintenance section with some kind of failure issue. Take it from these guys who are very knowledgeable and been around these cars for yrs. It upsets me when ppl try to take the easy way out and shortcut something by home making an idea or getting a cheap version of something. They make filters for a reason: theyre meant to be used not trying to critize you on your work or anything but lack of common sense gets you there
 
If i were you i would return your mesh back or im sure ill be seeing you posting in the maintenance section with some kind of failure issue. Take it from these guys who are very knowledgeable and been around these cars for yrs. It upsets me when ppl try to take the easy way out and shortcut something by home making an idea or getting a cheap version of something. They make filters for a reason: theyre meant to be used not trying to critize you on your work or anything but lack of common sense gets you there

Im not trying to take the easy way out. I just did this because I ran nothing on my turbo for over a year now with no filter. Now I know a larger intake will be best Ill be going that route..
Im thinking of the Forced Performance 7.5" or 9" filter that'll be in a separated box where the battery used to be then routed to the turbo.
 
Im not trying to take the easy way out. I just did this because I ran nothing on my turbo for over a year now with no filter. Now I know a larger intake will be best Ill be going that route..
Im thinking of the Forced Performance 7.5" or 9" filter that'll be in a separated box where the battery used to be then routed to the turbo.

wait so where did you put your battery?
 
why do you want to relocate it to where the battery is instead on a place where it can get more cooler air flow?

also with turbos you want the shortest route possible for the piping that will just extend it

On the 420a the battery area is close to where the turbo inlet is. But it will get cooler air I mention earlier I will have some ducting from down under the car going up into the intake box
 
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