What do you recommend for a larger air cleaner?

[liquidrush]

For a buggy. I've been using the empi one that's about 3" around and maybe about 5"tall, I subject it to a lot of dust and it seems like it "loads up" with it and I thought maybe a bigger one might be better.

[Vanapplebomb]

Check out the off road forum. Lots of good stuff there.

If driving in dust, avoid K&N style oiled cotton gauze filters. The K&N style works ok with a good pre-filter, like an oiled foam wrap. Outerwears also work ok with K&N style filters.

Paper is your best bet for dust control.

There are 10” aluminum housings that shield the element which cost around 50-60 bucks…but they come with a K&N style element. You can use it. Just make sure it’s well oiled. If you see dust inside at service, toss the element and find a paper replacement at you local auto parts store.
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1800 Type 4 Berrien 295

http://www.thesamba.com/vw/forum/viewtopic.php?t=487021

[busdaddy]

Something like this would be an improvement: https://www.surpluscenter.com/Brands/Donaldson/Donaldson-Air-Cleaner-28-1929.axd
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[liquidrush]

Purchased, thanks. Looks like just what I need.

[Vanapplebomb]

That’s a great style if you have room for it. Super good filtering efficiency. Just make sure you get a good seal between the carb and filter.
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1800 Type 4 Berrien 295

http://www.thesamba.com/vw/forum/viewtopic.php?t=487021

[liquidrush]

I'm an open air tube frame buggy, I have plenty of room so I'd expect it to be an easy fit. After a couple days of cruising around I can tap the existing filter and a bunch of dust falls off the darn thing. Just seems like I needed more filter.

[EVfun]

[madmike]

Have the same one on my Buggy

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"If I'm ever on Life Support,UNPLUG Me, Then Plug me back In see if that Works"

[oprn]

It would be interesting to know at what pressure drop across the air cleaner that performance starts to be effected noticeably.
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[Vanapplebomb]

It is probably more performance than you think. It doesn’t take much restriction to start hiring the volumetric effeminacy of an engine.

I think that air cleaner linked is more for outdoor power equipment, small construction equipment, and commercial mowers.

That same style is available to feed anything from small single cylinder engines, up to big industrial 12 cylinder Diesel engines. Pretty wide range of product availability.

Here is their air intake catalog.

https://www.donaldson.com/content/dam/donaldson/en...-Guide.pdf

The one thing to be aware of with two stage air cleaners like these is to not oversize them too much. The cyclonic filtration efficiency drops when there is t enough air velocity. They are kind of a Goldilocks filter. Too small and they are restrictive. Too large and the prefilter doesn’t function as well as it otherwise would.
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1800 Type 4 Berrien 295

http://www.thesamba.com/vw/forum/viewtopic.php?t=487021

[busdaddy]

[liquidrush]

I got that large air cleaner in today and it actually looks pretty dang good. It's marked Kawasaki so it's probably from a big side by side or something like that. The carb inlet hose in 2.375" but it shouldn't be any trouble to mke an adapter ring for it. The actual air inlet for the filter is 1.875 and it leads into a pre filter that's a type of thicker foam mesh with nylon netting around it and then to a large paper filter. The number is P821575 so I looked it up and it's these filters as a pair. For size reference, the white filter is 10.5" x 4" and the blue filter is 10.5" x 2.25" .

https://www.amazon.com/DONALDSON-P821575-P822858-FILTER-CLEANERS/dp/B01BH1UQ2W


It's got a metal mounting bracket for the whole thing and it looks like I can mount it on the top of the fan shroud and the hose will reach the carb. I'll mock it up tonight and see how it fits. All in all I think this might be just what I need for the dust problem.

[Dauz]

http://www.headflowmasters.com/sport-air-flow-vw-intake-filtration-system.html#.YNuIYDhKguU