Air cleaner

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Air cleaner

Post  jones on January 10th 2015, 11:38 pm

I need to find a good larger air cleaner for my 521 engine, it will need to fit a 4500 Holley style carburetor. I'm sure there is some out there that makes a good base a lid that will fit a large air filter. Besides those cheap china stamp steel stuff.


Your help would be appreciated!

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Re: Air cleaner

Post  Doug Rahn on January 11th 2015, 7:11 am

Moroso makes the largest one I have seen. Aluminum base and top, element is 16" in diameter and 4" tall. Part #65920.
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Re: Air cleaner

Post  Gregaust on January 12th 2015, 5:49 am


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Re: Air cleaner

Post  kjett on January 12th 2015, 8:35 am

Check www.speedwaymotors.com out. I know it's a dirt track place, but their brand of the reusable filters look exactly like the k&n's but are half the price. or if you want to pay full price, they have the k&n's as well.
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Re: Air cleaner

Post  jones on January 12th 2015, 10:10 am

Thanks guys, I'll do some looking.

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Re: Air cleaner

Post  jones on January 12th 2015, 10:14 am

Gregaust wrote:This one is good    http://www.knfilters.com/search/product.aspx?prod=60-1640

I have seen these but wanted something nicer and a little more filter.

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Re: Air cleaner

Post  jones on January 12th 2015, 10:24 am

What do you think about this style?
http://www.advancedaircleanersystems.com/applications-custom.htm

One option could be to do a high water type intake setup.

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Re: Air cleaner

Post  jones on January 12th 2015, 11:01 am

This one looks interesting, not really my thing but it would be nice to show off the carb.
http://www.r2cperformance.com/products/product.aspx?ProductId=286


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Re: Air cleaner

Post  Curt on January 12th 2015, 12:53 pm

I have this one. It has a bell that has been cut down on the sides to fit into a tray. It doesn't affect the sealing. I also have a chrome top for it as well.



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Re: Air cleaner

Post  jones on January 12th 2015, 1:09 pm

Curt,what diameter filter is that?


I think I am going to go with the 18" diameter housing with a 4" tall filter. Unless I decide to go with some type of snorkel setup or if I can find a larger filter. The 18" specs say it will flow 2,600 cfm and that doesn't sound like enough.

I do like the clear top and base. I'm probably going to use a QuickFuel Black Diamond 1250 or 1150 QFX carburetor. Hate to cover that pretty gem under a plain jane air filter housing.

I would have thought there would be more air filters available for a dominator carb. I guess most sanction bodies that run off road require the smaller carbs.

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Re: Air cleaner

Post  Curt on January 12th 2015, 1:25 pm

jones wrote:Curt,what diameter filter is that?



14x6  

The flow numbers are much higher without the oil. Since this was a dragster filter only, I never oiled it. Just used it to keep out the bigger particles and rocks. I ran it on a 598 at 7,700 rpm without any reduction in performance. Now I have duals and use the corvette filter.

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Re: Air cleaner

Post  jones on January 12th 2015, 3:20 pm

This all might change..

If the setup sits close to the hood I might throw a cowl hood on and do something different.

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Re: Air cleaner

Post  rmcomprandy on January 12th 2015, 4:55 pm


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Re: Air cleaner

Post  maverick on January 12th 2015, 6:45 pm

Don't be afraid of restriction if you're using a good gauze type filter (like K&N). I have one on my racecar (it's a 4" x 14" deal on an 1150 Dominator) and have run alternating passes with and without the air cleaner numerous times...and saw no discernable difference on my timeslips.
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Re: Air cleaner

Post  jones on January 12th 2015, 10:45 pm

That's good to know. I know when I ran a air filter on my 460 it was a night and day differance. I don't want to run this engine without a air filter unless I'm at a drag strip.

Has anyone used the K&N filter assembly they sale for the Dominator's? (They only sale one)

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Re: Air cleaner

Post  kjett on January 13th 2015, 9:02 am

Like I mentioned before, I use the Speedway Motors 4x14" re-usable filter ($24 vs. the K&N @ $62) and the Speedway Superflow top (again $30 vs. K&N @ $70). You can buy a nice spun aluminum base for a 4500 or make one and the whole deal will be less than the K&N stuff. I'm not into the "Pretty" aspect, but more for functionality being I race a mud truck. I also run the Outerwear cover to keep the big chunks out. Very Happy
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