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grannyknot

Air Horn Filters

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I just lucked into a deal on these air horns,post-26437-1415082650473_thumb.jpg

45mm choke, 57mm tall and 87mm wide at the lip. Big lip, I spent a few hours today hunting through sites that sell air filters for air stacks and haven't found anything.

Wondering if the Z collective (love that term, kinda like the borg collective) has any suggestions, foam socks or stainless steel mesh caps?

Worse case, I could have a few mm cut off the lip so a standard filter would fit but would rather not do that if I don't have to.

Thanks,

Chris

Edited by grannyknot

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I would have to find the same kind of foam they use for air filters so that sticky oil would work properly, a good option.

There is about a 1mm lip on the barrel sleeve that needs to come off, a couple of seconds with the dremel and some emery paper and almost a perfect match.

post-26437-14150826511514_thumb.jpg

post-26437-14150826511077_thumb.jpg

post-26437-14150826511299_thumb.jpg

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The air horn filter thing has been discussed recently on hybridz.

Weber Velocity Stacks Filters or No? - Nissan L6 Forum - HybridZ

Given what the advantages of using air horns do and how that works, ie the improvements in air pattern and flow at the lip of the horn, it seem intuitive to me that using those mesh filters that slip over that critical lip shape can do nothing but remove most if not all of the advantaged gained. Let alone the poor filtering they provide. Do they look cool? Yup.

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Jim, I thought those would work too until I saw the 3.25" is the O.D., there made for 2" wide stacks.

Micthell, I forgot about ITG, they have some very nice stuff. I have sent an inquiry about their JCS 12.

Thanks,

Chris

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Chris

This may be the best route to take - I'm thinking seriously about one. I really like my horns showing, and the air flow around them but the micro dust is not very healthy for my engine.

Air Boxes

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Yeah, I have been looking at those for a while, this is the CAI box I would really like to get,

post-26437-14150826568805_thumb.jpg

As far as I can tell these air boxes were made in Japan for their market and NA never got them.

Very slick looking. But in any case I would have to cut down my present air horns so they would fit so I think I'll try and build one out of filter foam first and see how that works before I spent the big money.

Thanks,

Chris

post-26437-1415082656863_thumb.jpg

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Im going to install Ramair in to mine (cause im cheap), i wonder do you just insert them over horns and thats it? The sucktion keeps them on place i guess.

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Koalia, from what I gather, the two cut out holes on the back of the filters are fairly small so you get a good seal and the entire piece is light and stiff so there shouldn't be a lot of movement. The air horns should also limit up/down movement.

I purchased a set of 3 online as well, post some pics when they arrive and I'll do the same.

Chris

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Im going to install Ramair in to mine (cause im cheap), i wonder do you just insert them over horns and thats it? The sucktion keeps them on place i guess.

I've been thinking of doing the same for easy on - easy off for go and show. Keep us posted with pics and feedback please.

Is this the one that you guys purchased?

3 x Ramair Carb Sock Air Filters Triumph TR6 Wide Port 150BHP Weber 40 Dcoe | eBay

Edited by Travel'n Man

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Just got my new RAMAIR filters from England so here they are,

post-26437-14150826662189_thumb.jpg

post-26437-14150826662648_thumb.jpg

Because the horn flare is so wide, 87mm I have to install the horns into the foam sock first then bolt to the carb body. I guess it looks okay, I was hoping for some of the horn showing but clean air is more important to me.

Ramair says the filter socks are ready to use and are treated but I can not feel any oil of any kind on them.

I rubbed them against glass and could see no film or smear. They feel like clean new foam, is there some kind of spray that is used now to attract dust?

I am tempted to treat them with the UNI filter oil I have, anyone have any advice?

And for no reason other then I think you guys will appreciate it I include a pic I found that I just think is beautiful,

post-26437-1415082666409_thumb.jpg

JDM Fairlady I think with motorcycle carbs, an honest engine bay, not too fussy, no bling but all business, simple and clean.

Great shock tower brace.

post-26437-14150826661846_thumb.jpg

post-26437-14150826662418_thumb.jpg

Edited by grannyknot

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Just got my new RAMAIR filters from England so here they are,

[ATTACH=CONFIG]68026[/ATTACH] [ATTACH=CONFIG]68027[/ATTACH]

[ATTACH=CONFIG]68028[/ATTACH] [ATTACH=CONFIG]68029[/ATTACH]

Because the horn flare is so wide, 87mm I have to install the horns into the foam sock first then bolt to the carb body. I guess it looks okay, I was hoping for some of the horn showing but clean air is more important to me.

Ramair says the filter socks are ready to use and are treated but I can not feel any oil of any kind on them.

I rubbed them against glass and could see no film or smear. They feel like clean new foam, is there some kind of spray that is used now to attract dust?

I am tempted to treat them with the UNI filter oil I have, anyone have any advice?

And for no reason other then I think you guys will appreciate it I include a pic I found that I just think is beautiful,

[ATTACH=CONFIG]68032[/ATTACH]

JDM Fairlady I think with motorcycle carbs, an honest engine bay, not too fussy, no bling but all business, simple and clean.

Great shock tower brace.

Looks great Chris.

I had similar filters on my car (installed by PO). I used an oil spray that I picked up from a motorcycle shop. I forget the name but I think it is pretty standard stuff available at all motorcycle dealerships etc.

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Chris

Can you see any sunlight if held up to the sky on those? How dense are they? Did you order the 40 or 45 DCOE size?

Thanks for the pic's. This may be the way I go on longer trips.

Edited by Travel'n Man

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Yeah, I have been looking at those for a while, this is the CAI box I would really like to get,

[ATTACH=CONFIG]67867[/ATTACH] [ATTACH=CONFIG]67868[/ATTACH]

Second pic (maroon Z) looks like an R-factory airbox, I just purchased one of these for my cold air setup. Max airhorn length I measured would be about 70mm with minimal clearance.

Re filters. I'd run them dry unless specified otherwise. I ran uni filter socks, I've tried them oiled, then dry and it's messier when they are oiled. The positive was the oil seemed to help keep the dirt more on the outside of the filter, when dry I found more grit imbedded in the foam material and cleaning was taking at lot longer. If you do oil them, do it very lightly.

Colinc 'JDM Fairlady' is my ride, it's just an AUS spec November 73 240. Pic was taken at a car show, filters were removed for asthetics, uni filter socks are not nearly as pretty as the ram air filters. It's a shame to hide the stacks under an airbox/filters but that's the trade off I guess.

Edited by riceburner

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Travel n man, these filters will work for 40 or 45 DCOE, the holes on the back are about 1" dia and do fit tightly around the base of the horn. Below is a pic with the lens of the camera stuck inside the filter looking up a florescent light and you can see a bit of light.There are two layers that make up the filter, dark grey is fairly coarse and the lighter grey much denser and similar to the UNI standard foam next to it.

post-26437-1415082669551_thumb.jpg

I emailed Ramair and they assured me that the foam has been treated but will need oiling after cleaning,

I think I'm going to oil it anyway.

post-26437-14150826695285_thumb.jpg

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Chris -

Great info and pic's. I'll grab a set of these on ebay and run with. My car only travels in great weather for maybe 2000 miles yearly. I'll keep my screens but for my annual trip with my son in our Z's this filter will be perfect - easy on and easy off.

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