As title? what filters do you use? (and before you say "none") i will need to, so any experience with these is greatly appreciated.

Any links of where to buy, or any suppliers of gauze also would be cool.

Thanks!

 

K&N makes all shapes and sizes of Filters...you can pretty much have one made to what you want..

 

Alot of the guys that race do not run a filter on their turbo at the track.

I can speak from experience that not running a filter on the street can lead to disaster. My last engine was trashed because of a small piece of steel that made its way through the turbo, intercooler, intake valves, and into the combustion chamber where it proceeded to get smashed into the head, valves, etc. It cracked the sleeves, and chewed the head up.

 

are you sure that the piece of metal wasn't from something else getting inside and breaking off a piece of the turbo or something. not very common for bits of metal to be floating around but i guess anything is possible.

regardless, look at something like summitracing.com or jegs.com and just start searching until you find a filter you like.

 

I checked the turbo out and it had a super small chip on a fin and that was the only damage. The intercooler was made form aluminum, so was the intake manifold so it didnt chip out of those. The only parts that would have been steel would have been valves and maybe a piece of the Tb that could have gotten into the intake track. I looked through everything and could not find where the chunk of steel came from. It was embedded in the head and I was able to pull it out. I still have it taped to a white piece of paper as reminder. It was just big enough for the piston to come up and smash it into the head and put enough side load on the cylinder to put a few hairline cracks in it.

 

I doubt anything big enough to ruin your motor, made its way through any kind of decent intercooler.

 

i agree

 

Back on topic, OP go to K&N's site, like it was said above, you can get just about anything you need. Or design it yourself.

 

i drive my car on the streets with just some metal screen over the inlet.

 

http://www.summitracing.com/parts/MRG-2085/?rtype=10

I'm gonna run this I think with the filter element removed IE just the screen. I think the velocity stack will counter effect all the negatives of just running some screen.

 

You dont have a front mount, and screen is restrictive believe it or not.

 

Old Rev Hard....and I thought the same thing, but where did the piece of metal come from?

I could never find where its origins anywhere. It was also small enough to make it past an intake valve, but big enough to tear my engine up.

 

Thats a good link but it doesnt suggest what size fo turbos it would fit? unless the site isnt working for me!

I have a 4.5" inlet GT4094R that i need to protect if that makes any difference.

 

Here I did some of the work for you, took me about 15 seconds to find this.

http://www.knfilters.com/search/universal.aspx

 

I have already been on K&Ns site and sadly the only one that would have been of use is the round tapered universal.

Trouble with that one is that the only one available in 4.5" inner diamater is 16" long!!! so no good

 

there's this one: http://www.knfilters.com/search/prod...x?Prod=RU-3110

or this one: http://www.knfilters.com/search/prod...x?Prod=RC-5151

or this one: http://www.knfilters.com/search/prod...x?Prod=RF-1005

or this one: http://www.knfilters.com/search/prod...x?Prod=RU-4260

there are several K&N filters with a 4 1/2" inlet.

 

thats great, how the hell did i miss those?!? the top one is pretty much exactly what i wanted....

Only thing now i cant find is if there is any power limitation on them!!

 

i have an RU-2510 which is really small and it was not an issue for 400 hp. there is some good info on this site for that exact question. i know because i was researching this about 2 months ago. lol

 

Fair enough, as long as it doesnt limit anything below 700 im good to go

 

I run the top one and make 650WHP on it, took it off and only gained 6-7WHP

 

HKS filters will fit behind the bumper way better, and look better imo.

 

Thats what i originally wanted but i cant find any with a 4.5" inlet...

If the K&N will do the job then i may just go with that, they arent that expesive either which is a bonus.

 

The Foam ones??? No thank you.

 

Listerofsmeg

I feel you should be a little more open about the conditions the car will be subjected, Will such a filter be capable of sustaining flow at the velocity it's going to see in it's mounted location?

Eddie

 

We run the RU-2510 on our front facing EVOs, its the shortest filter they make, we run them on the PT6765s. They restrict like 20 horse for us, but thats at like 40+ lbs and over 600 wheel.