hey,



I dont think i'm going to be able to fit any air filters bigger then a few inches long, so I might just run screens. The smaller k&n's that will fit might just become a restriction. But, i am unavaliable to find any quality screens. I know i could make something up, but i'd rather not risk it if i can buy something that was designed to go on a turbo and not a screen door.



thanks



bobby

look into HKS MetalFlow's they have ones with 100mm mounting point. I found them on overboost.com. i think they have ones that are like 100mmx80mm (about 4"x3"), they may have shorter/stubbier ones as well, i dont remember off hand.



kevin.

thanks!

The Metal Flow isnt exactly what I had inmind. Let me find a picture of what I'm talking about.



metalflow:

something more along these lines



https://www.nopistons.com/forums/upl...1064683518.jpg

yea i know what you were looking for, i was suggesting the metalflow because you could get it somewhat compact.



i wouldnt go using window screen, or any screen to be honest with you.



Unless you dont care about longevity of turbos/engine. I know youre putting a lot into the twin turbo setup i figure you dont want to be sandblasting the internals of your turbo and motor by using just regular screens. A couple guys on here have talked about the effects of using just screens and how it compares to an actual filter.



i suggested the metalflow not only because i know it can be made "stubby" but also because according to independent tests its flow rate is rather high, plus its a pretty trick looking filter as well.



But if you do stay with the screen idea thats your choice, ill probably run like that but only on the track, not looking to cost myself a motor/t78 if i inhale a little grit.



kevin.

kevin,



I know where you are coming from. I am just looking for something besides a k&n because of space limitations.



Hey, at least the car is finally to the point where i am thinking about air filters :0

cut up t-shirt and a rubber band https://www.nopistons.com/forums/pub...IR#>/dunno.gif

As far as screen goes, you are looking for the stainless or rubber coated screen that is used in tea strainers and collanders. It is very rigid and will hold any shape you make it.

Screens like that are a very bad idea.



It might look like a good idea, but due to it's close proximity of the screen to the inlet, you're magnefying the "obstruction ratio".

Screens can be described through an obstruction ratio - % of screen material versus the open spaces.

Very large hold screens (like 1/2" square holes can be as low at 20%).

Small screens in that pic can be a restrictive as 50% or more!



This is why pleated filters are superior.

Although the filter media looks dense, if you stretch out the entire area of the filter, you can wrap it around your head!

(Assuming cone or canister type filter).



Please, try and use a proper filter - use a tight radius bent pipe if you have to!





-Ted

http://knfilters.com/universal/universal.htm





I would imagine you could find a good one here.

Jim,



I have 3 or 4 k&n's of various size. I am not saying I dont want to use one, because if i could i would. But for a k&n to fit it is going to have to be super small.



Small air filters = bad flow. According to ted screens flow bad, but this is contrary to what i have seen in pratice so...



I'm just exploring my options https://www.nopistons.com/forums/pub...DIR#>/cool.png

post a pic of your setup so that we know what area you have to work with.

You should see what a turbo impeller looks like after 500 miles with no filter on it. Its a throwaway.

Have you thought about a setup like mine. Pipe to an air box maybe.



Or 2 pipes with filters on the end. They could go in different directions.

here..



Sorry for the shitty pic i need to go take more.



The thing is, The rear turbo will be ok, but the bottom one doesent have much room before it hits the Rad.



And if you havent already figured this out, the car will be mainly used for drag racing with limited street use.



Apex, where they driving in the dirt or something? https://www.nopistons.com/forums/pub...R#>/unsure.png

the greddy air filter broke on my T78 so i looked and found a short 4" filter from K&N and used that

Since you have a couple big daddy turbo's in there, I'm not so sure I'd worry about the screen interupting airflow on the bottom turbo. Looks like you'd almost have to relocate a portion of the radiator hose to fit anything other than a screen on the bottom turbo.

Where are you driving, gravel pits? I have been running filterless with the same turbine for two years and have had no problem, and that is without a belly pan. You just have to keep in mid you don't have a filter. If you are on a gravel road or something of the sort, don't be going 80mph.

I think I am going to do the screens after talking to a few people. I just dont have space for anything else as you can see.



The car is going to be driven at the track mostly with a little street use just for playing. Mabye when I have the rest of the important things sorted out I will look into doing a filter.

If it's a primary drag racing, then don't bother!

The screen is more bother than it's worth.

I've seen screens *sucked* into the turbo - it's not pretty!

If you're going to risk killing your turbo, you might as well not run anything in front...





-Ted

id be tempted to build an air box, maybe kinda like the fd arc ones, where you can have a couple of panel filters

where...

you wouldnt have a problem if you just rerouted that rad. hose. at least thats what it looks like from here

put a tube on the bottom turbo and put the filter way up front! think 4th demensionally!

About the rad hose,



I have a thermo housing with a male fitting welded on, and I am going to weld another fitting onto the top radiator inlet, and run a SS hose. That way i can make thoes tight bends with -12 270 radius fittings. When i get the money.

I made mine and still have a big roll of the screen for about $10.

Its not blue though, and mine is a little bit finer mesh.

When I first saw the pic of the space you have, the first thought that came to mind was why not relocate the rad hose. Re-route the inlet on the rad, that in my estimation would be easier.

can the rad lean forward a lil more? whats about a custom rad with the upper rad hose on the other end? seems like nothing will get on the hose's way.

I'm just going to run screens...



I could reroute the rad hose very easily.



All I would have to do is cut the pipe on the endtank at the 45deg bend down, and weld it back on so that it is facing 45 degrees towards the drivers side. That would shoot the radiator hose out of the way..



The position of the radiator is set, it is almsot impossible to bend a 3 inch pipe around it if it is leaning forward at all.