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source for air filters

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mperdue

mperdue

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I've got a pair of 5-1/2" diameter half sphere shaped air filters that fit HS4 SU carbs. They have foam filter inserts that are washable but I'd like to replace them. Does anyone know a source for replacment foam filter elements like this? I'm going to try to attach a picture. Thanks for the help -
michael
 

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I'm just guessing, but have you tried Summit?

www.summitracing.com

Also, If those old filters are dried and hard. Be very careful with them. I know a guy, who let his get in bad shape. Oily, greasy, old and dry. His car backfired into them and the whole car went up in flames.
 
Yep, we both know the same guy, eh John? were it me, I'd look at going with a completely different filter setup.
 
Hi mperdue, You might try K & N filters they may have a foam liner that you can add to those frames.---Fwiw---Keoke
 
I didn't see them at summit and I haven't seen a K&N that will fit. The problem is I'm trying to get this setup running on a budget for now anyway and I bought these cheap on Ebay. I was hoping there would be a source for cheap elements to get me going for awhile. Eventually I'd like to go with the K&N cones and scrap these. So anyway if anyone knows of a good source let me know. I really need these soon!!
michael

ps. yes these are all crusty and dried out, which is why I want new ones /ubbthreads/images/graemlins/grin.gif
 
Why not just cut a piece of 1/2" foam & put it in the filter? If you cut it to the same shape, the filter holder would help it keep its curve - would be the same as what you have now....& you could even pour a little oil in them
 
[ QUOTE ]
Why not just cut a piece of 1/2" foam & put it in the filter? If you cut it to the same shape, the filter holder would help it keep its curve - would be the same as what you have now....& you could even pour a little oil in them

[/ QUOTE ]

Just make sure you use the right kind of foam. There are two types-- open cell and closed cell. Open cell foam allows air to flow thru...
 
Michael, I go along with those suggesting; make your own inserts using black open cell foam.---Keoke- /ubbthreads/images/graemlins/yesnod.gif
 
Well I found a supplier for sheets made by UNI. They sell sheets that can be cut into any shape. It was recommended that I go for a 2-sheet setup with a course sheet on the outer later and a finer one for the inner layer. They also make the proper oil to make the filters more efficient. These are normally used for off road use but I think with the 2 layer setup I'll be fine for my street car. Here's a link to a page showing the filters: https://www.unifilter.com/accessory-catalog.htm I got the BF-1 sheet and BF-2 sheet (from a local supplier) so the overall thickness will be 1" thick. Hope this info can help someone else out. I'll post a picture when I get the inserts in. I should pick them up tonight after work.
Michael
 
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