POD filter V's Foam filter - Interesting Results!

I personally couldn't be bothered with the six step 3 day maintenance nightmare.

I just run 2 of these apexi dry filters ..and always will .

 

If you are having water problems with your air filter and you live in Toowoomba where the water comes down the main street 8 metres high with 5 minutes notice, here's your answer

 

Oiled filter elements and the EPA?

The Victorian EPA laws do not allow the use of oiled air filter elements [see this EPA document, page 5, 1(b)]. That said, how often do the EPA inspect vehicles? I was subject to a roadside EPA inspection for noise and engine mods, and, at the time my first Z had only pod/BOV/exhaust mods. I was immediately pinged for the atmo vented BOV's, but they didn't ask to see the filter, which was an HKS foam mushroom type.

I used the HKS filter for 8 years on RZ1, without any problems whatsover, and replaced the elements with original HKS units about every 30,000km (15 months in my case). I never reoiled; I'm pretty sure the packing said not to re-oil the elements; although that could be interpreted as a method of selling more elements. I could also tell the EPA that I had never oiled the element if that ever came up ...

RZ2 came with a cheap and scuzzy pod filter, and as Caz was doing a deal on Apexi's, I bought one of them. Haven't had any issues with that either, although RZ2 has done only 6000km in 3 years.

As for all the other air/fuel/ECU intake/exhaust mods discussed in the EPA document and their legalities - no comment!!! But I now have plumbed back Turbosmart BOVs (thanks to a rob260 GB), so at least I'm covered on that one!

 

These are called Karman Vortex AFM

Hotwire MAF and AFM are the same items. Both measure air flow and air density via hot wire

 

I had a HKS Pod just like the picture in the first post on my supra. IMO they're a piece of sh#t! Filtration if hopeless. When I removed the piping to the turbos I could see tiny chips on the compressor blades. My HKS pod ended up in the bin, I wouldn't sell it to my worst enemy!
I read a review later on that rated the HKS pod very poorly due to its bad filtration ability and poor flow compared to filters a quarter of the price. I've run cheap cone style filters and never had an issue but I prefer to stick with factory airboxes where possible.

 

Got the picture

yet?

 

I can understand some peoples reluctance to go through a few days of non use due to filter cleaning/drying process. I usually select a time to do this when I know I won't be driving the zed for a few days.

I take it that that Apexi filter is not a cleanable/re-usable type?
Paper type filtering medium?
Cost?
Frequency of change?

I rarely if ever hear that type of filter mentioned on tt.net. It seems the filter of choice for any application there is the JWT style pop charger. Usually sourced through Z1, CZP, etc.



*EDIT*

Sorry Benny. I missed your question.
I thought it might be a bit restrictive myself but there's plenty of gap between the shield and the filter. If you're familiar with Ash and his very progressive and knowledge of the Zed, you'll realize that his creations are very very function orientated.
It not only prevents the filters from getting saturated with road water and road dust/debris, it also keeps any gusts of turbulant air from passing through too quickly and disturbing the sensitivity of the MAF.
People who have experienced driving stumble/hesitation when at highway speeds and having a filter exposed as much as it is with a DoolZ type intake, see those issues disappear with that flower pot mod.
Ya, it looks pretty cheap and flimsy but it definitely has done the trick for me what I was running my DoolZ intake for over two years.

 

its more of a race replace filter which suits me fine .Ive done 7500km so far and they still look new . . (but all depends in what conditions you drive I guess)
you can get them for around $70 each
those pop chargers look too big and bulky
so because its not on TT.net it cant be too good .. ? you of all people should know about those guys

http://cgi.ebay.com/ebaymotors/Apex...r_Truck_Parts_Accessories&hash=item230d00d788
http://cgi.ebay.com/ebaymotors/Apex...r_Truck_Parts_Accessories&hash=item3cb38ca046

"The Power Intake is the premier air filter designed to create pure horsepower. The intake funnels used in racing machines take advantage of a characteristic where air travels along the side of the side of surfaces. However, the center portion of the funnel is virtually unused. It is this concept that gave birth to the Dual Funnel design. A primary funnel on the top portion of the air cleaner was inserted to channel the air flow directly into the lower funnels at the base of the cleaner. This design was a huge success on the former Super Intake model. The Power Intake took this design and improved the flow characteristics. New funnel design, element material and air flow channeling characteristics make the Power Intake one of the most efficient air cleaners on the market today. By constructing the upper and lower funnel from a highly durable injected resin, engineers were able to construct the ideal shaped funnel previously not possible with the stainless steel material. Funnel shapes focused on increasing air speed without changing the flow direction of the intake air. The result is a high speed and smooth flow of air into the intake. The lower funnel has been engineered at a 14 degree curve for maximum efficiency. Also, the lower funnel position has been made even closer to the base of the cleaner to reduce drag and eliminate any "dead spots" within the cleaner. The Power Intake incorporates a newly developed material (layer filter of dry density fibers) which improves the element density. This allows maximum protection from foreign materials entering the engine. Compared with past model, the Power Intake has also succeeded in decreasing its ventilation resistance by about 10% (pressure loss) for maximum performance and protection. The Power Intake is dry-type filter and is trouble free. Some of the problems associated with wet type cleaners, such as oil sticking to the air flow meter, are a thing of the past. The Power Intake is basically maintenance free. Filter replacement, when necessary, can be done at a very low cost."

 

I guss I'm just not partial to a paper medium filter. They don't seem to fair well in damp conditions becuase of their medium selection.
I've read the Apexi monologue from their site as well. If you were to compare that to the K&N monologue from their site you may see why they're able to shoot holes through some of the paper element type filters.
But if it's doing the job well for you, than by all means stick with what works.
I'm sorry if I implied that if it wasn't a type of choice on tt.net that it wasn't a good product. It's the deduction one gets after seeing such great results on the track and dyno with a gauze type filter (po charger) that one would see on tt.net.
The Apexi filter is pretty close in price to the pop charger but then again, the Apexi is not cleanable/re-usable. When you see people using the same pop charger for more than 5 years, it actually works out to be cheaper in the long run.
Nonetheless, I will give the Apexi a closer look and more consideration for the future.

BTW, did you happen to notice the shipping fees on one of those links?
$146.93 from California to Canada.