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General Category >> Rubber Side Down! >> Air filter mods
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Message started by mr. s on 06/08/11 at 11:19:25

Title: Air filter mods
Post by mr. s on 06/08/11 at 11:19:25

After seeing this thread:
http://suzukisavage.com/cgi-bin/YaBB.pl?num=1307497101

I started thinking about how much room I could save doing a similar air filter. I am not sure where to get started though. Has anyone else done a filter like this?

Is it just as good as far as function?
Are there other unique ways of mounting it?
Does anyone know how large a filter I would need to order?

Title: Re: Air filter mods
Post by spacepirates on 06/08/11 at 11:46:01

Search the forum for "pod" or "cone" air filter. lots of good information.

Plenty of people have done it.

Function:
it is good in that it lets more air flow in. arguably bad in that by doing so allows more dirt/dust in as well. May or may not require rejetting your carb depending on your exhaust set up

Mounting:
mine is attached to the carb by way of a PVC elbow and flexible plumbing coupling. got both at lowes for a few bucks, works well. In theory, with a short intake like that the air flow is too turbulent (or was it not turbulent enough....) and will affect idle, but I doubt you'd notice that much.

How large a filter:
take a ruler out to your bike, measure the diameter of the carb intake, go find a filter that fits. I want to guess the opening is around 53mm, but i'm not positive. you can get filters a few mm bigger or smaller and stretch or compress them to fit. I got mine off ebay for around $9 IIRC

EDIT: Filter boot opening is closer to 57mm according to Boofer (close to 2 1/4 inches).

Title: Re: Air filter mods
Post by papi_ocho on 06/08/11 at 13:22:40

i saw one of these on a savage here a LONG LONG time ago.

probably what i'm going with. Unless someone here calls them dangerous for the engine.

http://www.outwestmotorcycles.com/catalog/index.php?main_page=index&cPath=66_87&zenid=bac89e42be595d0959510995af4c2a6e

wonder if anyone has tried their luck with one of these

http://www.partsforscooters.com/Uni-air-filter-for-full-size-scooters-169-71
**disclaimer** this is NOT a varified part number. do not order without varifing the size of your carborator!

Title: Re: Air filter mods
Post by Boofer on 06/08/11 at 14:08:19

Spacepirate, I think the carb takes a 57mm (2 1/4") opening for the filter boot.

Title: Re: Air filter mods
Post by spacepirates on 06/09/11 at 07:42:22

002D2D242730420 wrote:

Spacepirate, I think the carb takes a 57mm (2 1/4") opening for the filter boot.

that makes more sense than my original guess since i think the PVC i used was that diameter.

Title: Re: Air filter mods
Post by jdeluca on 06/10/11 at 08:11:04

I've been thinking the same thing, I think that looks pisser. I think when I have a couple bucks set aside, that's next up on the hit-list.

Title: Re: Air filter mods
Post by mr. s on 06/10/11 at 08:43:06

(I'll go ahead and assume 'pisser' means good :o).

IMPORTANT QUESTION:
Do I have to rejet if I remove the air box and toss this filter on?
What should I do about the tubes that run into and out of the air filter box?

Title: Re: Air filter mods
Post by jdeluca on 06/10/11 at 09:57:53

Ha....yes, pisser is Boston talk for good, usually preceded by "wicked".

In answer to your question, yes, you will *probably* want to rejet after you change that filter out, as you'll end up running a little leaner now that the engine can inhale the way it wants to. And then you'll probably want to modify your exhaust so it can exhale the way it wants to as well. Either way, you'll want to rejet, or at least tune via the mixture screw. This thread here: http://suzukisavage.com/cgi-bin/YaBB.pl?num=1244217127 is a good starting point.
I don't know how it is up in Canada, but new jets are pretty cheap. Also, Lancer has a jet kit, from what I've heard.
As for the tubes, I think this thread touches on it on the second page: http://suzukisavage.com/cgi-bin/YaBB.pl?board=RubberSideDown;action=display;num=1183926901

Best of luck, hope this helps!