Air filter

[floridaredneck]

Okay got a question, for the air filter that has the mount that you dont have to use the air box or lid what is the Inside diameter, Outside diameter, length.

I think i found a way to make one for 50 bucks.

 

[griff]

On the Raptor Airbox, all you need is some 2.5" Aluminum or mild steel tubing about 3" long.

I made a small velocity stack like that for mine, slides right in the boot/hole, and seals in place with silicon quite nicely. Theres several K&N's that will clamp right onto it.

I'll take a pic later today when I get a chance.

 

[floridaredneck]

Yeh thats what im doing just seeing if the filter is about the same size. Later down the road im going to be putting a massive filter on there. The Inside diameter is 3 inches.

 

[2ksuperglide]

does doing that make a great difference in power? or do yall just like comming up with your own ideas to make one instead of buying one?

 

[floridaredneck]

I didn't feel like paying 120 for one. Plus its custom and gives me something to do. If i can get the bigger air filter on there should be good power gain.

 

[ogener]

I used the stock filter end and cut the metal part off leaving the plastic end that mounts to the airbox. put a piece of 2 inch pvc in there and it was tight and i used some pvc glue for extra assurance. then I plastic welded and riveted that to the airbox and clamped a k&n on the pvc end.

 

[2ksuperglide]

gotcha. i like that. it adds personality to the bike.

 

[floridaredneck]

Anyone know the dimensions of the Pro filter one or what ever its called?


I need I.D, O.D and length

Im assuming im going to need to re-jet.

 

[griff]

does doing that make a great difference in power? or do yall just like coming up with your own ideas to make one instead of buying one?

With an opened up airbox, and using a K&N clamp-on filter, you can tune for more HP, usually in conjunction with a good exhaust upgrade.

A lot of the kits I've seen are a major rip-off IMHO... The K&N's they come with (typically) run about $23 dealer cost, and the CNC machined aluminum adapters production cost anywhere from $4 to $8 each depending on quantity. The Delron and/or ABS plastic adapters cost about $2 each to make according to my sources.

I dont like the idea of spending $100+ on $30 worth of parts myself.

In my case, I made a velocity stack that doubles as a clamp-on filter adapter. It'll flow just as well, and saved me a good amount of cash.

 

[griff]

Anyone know the dimensions of the Pro filter one or what ever its called?

I think its this one.... (you'll have to double check though):

K&N RU-0820

http://www.knfilters.com/search/product.aspx?Prod=RU-0820

 

[floridaredneck]

Perfect. Mines just an inch shorter!