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new location for the air filter?

7.6K views 14 replies 3 participants last post by  M.T.RZR  
#1 ·
I have been messing around with locations for my air filter for a while now and I thought I would ask for some ideas / opinions.
I wasn't a fan of the stock set up so I decided to "snorkel" it but I'm not a deep water rider so getting everything super high was never my goal. I put the cv intake in the bed and the exhaust pointed backwards on the passenger side just barley above the bed. And for awhile I had the intake right behind the drivers seat. During that time I had the front window installed and no rear window not knowing this would create alot of dust.
Since then I have installed the rear window in hopes of starting to help my dust problem and trust me I know just take the windows off and no more dust problem but even this time of year in montana it can be pretty cold we are already seeing 30 degrees at night so the windows are very nice to have.
All that rambling brings me to my question is the bed a bad spot for the air intake? Whare could I pull air from that would be better and not leave me with a super long intake pipe I would prefer to keep it as short as posible and also I hate the look of a pipe sticking up past the roof so keeping it low is a definite plus.
I also keep playing with the idea of getting rid of the box that the filter sits in and just putting a pipe on the throttle body with a filter on the end of the pipe. That box seems to be a week point for dust and instead of spending hundreds for a new better one why can't it be eliminated completely?
 
#2 ·
I know this is not what you want, but it might spur some ideas. This is how I did mine a few years back, and haven't had any issues.

 
#4 ·
Basically because I mud. Can't have an open filter, lol.

When I did that, I had a friend that worked at Ethyl Corp (they test all types of fuel, oil, various engine additives). For fun, he took the air box to work one night and played with it on some of their machines. It flowed air surprisingly well, and sealed itself surprisingly well, for what it is. He tested airflow using a few different pipe diameters, and concluded that the 2" pipe to the roof, and 3" pipe from the box to the throttle body was probably the best way to go with a basically stock machine. I asked a ton of questions here, and did a little unscientific testing myself. Ended up going with what he originally told me I needed. lol.

I'm sure there is probably a better way to do it, but this works for me.
 
#9 ·
I am however curious as to why the filter box still at the end why not just an open filter with a one of those waterproof covers on it?
And yes when I have time I will be reading that thread winters coming I need projects. And with a inevitable top end rebuild on the horizon the bed will be coming off.
 
#10 ·
Waalll...I like the Donaldson design air cleaner.

It uses a large very fine paper media primary filter element.

Inside of that is a blue foam safety filter.

I worked with Outerwears to have a sleeve of their design that covers the Primary filter.

With my project complete, I've gone two riding seasons using only one Primary filter per season and still on the same safety filter. Can't beat that!!! Oh, and I wash the Outerwears sleeve every couple of riding days during a week out on the trail.

Donaldson also makes the air cleaner for my Bobcat skid steer loader and excavator. Have had some very dust covered Primary filters, but never a dirty safety filter. So going that route on my RZR 800 made a lot of sense.

Unfortunately, Vent Racing has the air cleaner in the place of the OEM air cleaner, in the engine compartment. But unfortunately with the air inlet pointed straight down. That makes the dust loading on the Primary filter element even heavier. Not good...so that's how my project came to be.

Pirate
 
#11 ·
I like the Donaldson set up, too. I looked very hard at that, and one other similar setup (I forget which one now), but had a hard time with the price. And when my buddy told me about his testing with the stock box, I figured I'd give it a shot. I use the stock, paper filters (with an Outerwares pre-filter), put a little vacuum grease around the filter coupler, and I'm very happy with the results. Granted, I don't ride in a lot of sand and fine dust, but I definitely get my share of dust and dirt. I check the pre-filter after every couple of rides, and clean as necessary. I've been getting about 2 seasons out of the paper filters.
 
#12 ·
Tommy,

You've got it right!!! All one has to do is keep an eye on the air filter, maintain it, and it will give you great service!!

Neglect it...and it will give you $$$ headaches!!!

And while I'm at it...the same is true for clutches. Take time after a dusty weekend or rally, to take the CVT cover off, roll your RZR outside and used compressed air to blow all the dust out of the clutches and CVT housing.

Pirate
 
#13 ·
Thank you guys for all the really good information!! I have alot of reading to do now:) and unfortunately I bought this rzr used and when I did the pinion nut in my rear end witch was very soon after buying the rzr I also took the throttle body apart and it was very dirty I was optimist towards it not having a big impact on the motor but unfortunately it's eating a good amount of oil I can't say atm exactly how much but I know it was half way up the safe line and one tank of gas it was on the bottom dimple in the dipstic. Not good!!
 
#14 ·
Sounds like you're due for a top end and valve job.