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Sierra air cleaner options
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Author:  gr8whitehuntr [ Thu Jan 12, 2012 8:51 am ]
Post subject:  Sierra air cleaner options
Does anyone know if you can get a ramflo or round/chrome air filter that will fit on the factory Aisin carby?

Thanks
Author:  steak_knife [ Thu Jan 12, 2012 8:53 am ]
Post subject:  Re: Sierra air cleaner options
You not planing to go off road then??? :?
Author:  Rusho [ Thu Jan 12, 2012 9:14 am ]
Post subject:  Re: Sierra air cleaner options
steak_knife wrote:
You not planing to go off road then??? :?


:lol: :lol: FWIW mate the standard set up is the best option :wink:
Author:  2stroker [ Thu Jan 12, 2012 9:27 pm ]
Post subject:  Re: Sierra air cleaner options
I hear this a lot and always wonder where the idea that foam style filters are no good off road came from.

I do agree that the Suzuki factory airbox is good as it is and doesn't really need improvement unless you need to increase airflow due to fitting a larger capacity engine.

But why do so many seems to believe that oiled foam style air filter systems are no good off road when that is preciecly where they were designed for.

Dirt bikes run them and just about every carburator rally car ever raced ran them over the dustiest roads on the planet. Heavy earth moving and mining equipment also use oil air filter systems because of the dusty conditions.

Has anyone seen an original factory LJ50 air filter element, guess what, it is a foam element arount a metal support, they were washed in petrol and then oiled with your 2 stroke oil. Like all things as they progressed away from a purely offraod vehicle and became more road car they didaway with this style of air filter.
Author:  2stroker [ Thu Jan 12, 2012 9:35 pm ]
Post subject:  Re: Sierra air cleaner options
gr8whitehuntr wrote:
Does anyone know if you can get a ramflo or round/chrome air filter that will fit on the factory Aisin carby?

Thanks


What are you trying to achieve mate,there may be other options available
Author:  gr8whitehuntr [ Fri Jan 13, 2012 11:14 am ]
Post subject:  Re: Sierra air cleaner options
The intake heat thing is stuffed (stuck on hot air) so I just removed the thing. I will probably go for a snorkel when I actually have money, this seems more efficient as it will draw cleaner and cooler air.

As for paper vs oil, I still haven't made up my mind. I also ride a trail bike which has a oil foam filter as standard and has no problems with dust ingestion. I am running a standard paper in my Sierra at the moment but am still undecided whether to change it to one of those 2 stage UNI filters next time it's due for replacement. I do like the idea of being able to service the filter in the field though.
Author:  GRPABT1 [ Sat Jan 14, 2012 6:25 am ]
Post subject:  Re: Sierra air cleaner options
I've run a uni filter element in a GTi air box for years without a drama.
Author:  Gwagensteve [ Sat Jan 14, 2012 6:51 am ]
Post subject:  Re: Sierra air cleaner options
2stroker wrote:
I hear this a lot and always wonder where the idea that foam style filters are no good off road came from.


They are great off road, in an appropriate application (in free air) appropriately maintained (after each dusty drive) and for an appropriate engine (where rebuilds are frequent,and space is very limited- like dirt bikes)

In short, foam is for competition use where there's inadequate room for anything more complex, and maintenance isn't an issue.

Quote:
I do agree that the Suzuki factory airbox is good as it is and doesn't really need improvement unless you need to increase airflow due to fitting a larger capacity engine.


The factory suzuzki air box is rubbish. It was built to a price (like the rest of the car) and does not seal or filter well enough for Australian conditions. The element itself is well sized (in a 1.3) but the cheap construction of the box means it rarely seals very well. It's really just the plastic flexing and the clips being inadequate.

Quote:
Heavy earth moving and mining equipment also use oil air filter systems because of the dusty conditions.


Please show me some evidence of these systems. I am unaware of them. Do you actually mean an oiled foam primary element? This is very surprising. If you mean an oil bath air cleaner, that's a different device entirely and isn't well suited to the angles an off road car sees, although they are very efficient as a filter.

Foam filters are a complete PITA in a stock air box, mostly because the air box can no longer operate properly. All the debris that enters the air box ends up stuck to the filter. With a paper filter, only a small percentage of the dirt that enters the air box ends up on the filter - the coarse stuff falls off the filter and ends up in the bottom of the box. With an oiled foam filter, service intervals go up because that doesn't happen any more. This is the #1 problem with oiled foam filters in OEM applications.

Just because something works on a 2 stroke or a motor that's rebuilt yearly (or less) doesn't mean it's appropriate for our use.

I have used Crap&N and uni filters in and out of air boxes. My car runs paper in a Hi-ace air box. If that is inadequate (it isn't currently) I'll run a donaldson pre-cleaner, or upgrade to a larger cyclopac-style air box.

Foam or oiled gauze won't go anywhere near an off road car for my use.

Steve.
Author:  CairnsZook [ Sat Jan 14, 2012 7:07 am ]
Post subject:  Re: Sierra air cleaner options
Gwagensteve wrote:


The factory suzuzki air box is rubbish. It was built to a price (like the rest of the car) and does not seal well........


I found that out on the Balfour tack not long ago. Snorkel was sealed well, but water entered through the air box.
The result was a stalled engine, submerged seats and wet camping gear.
Author:  ajsr [ Sat Jan 14, 2012 8:09 am ]
Post subject:  Re: Sierra air cleaner options
2stroker wrote:
Dirt bikes run them and just about every carburator rally car ever raced ran them over the dustiest roads on the planet. Heavy earth moving and mining equipment also use oil air filter systems because of the dusty conditions


sorry mate but thats not correct.
I raced offroad bikes for years and can tell you without a doubt the foam is not good enough to stop all dust ingestion into your engine.
when I raced the warrigul 4 day about 20 % of all expert and pro entrants withdrew due to valve recession due to dust before lunch on the 4th day, all these guys were running a fresh filter every morning.
granted it was a long dry summer but still

at the time the team I was riding with were running a twin stage foam filter with a paper vaccuum bag overfilter and ran without issue due to the paper except my bike that was foam only.

I also know the yamaha and KTM factoy teams run paper type over filter on all the aust safari, dakar type races where an engine needs to survive more than 1 day

Ive never see any off road or agricultural machine (and I work in that industy) for that runs just a foam filter.
most run a paper filter or series of them. some have a foam over filter over paper.
and some of the older stuff has a steel mesh oil bath type filter but never just foam.
Author:  jdk81 [ Sat Jan 14, 2012 11:44 am ]
Post subject:  Re: Sierra air cleaner options
As per the stock air box...

I normally apply gasket goo to both edges of the filter, and around the lip on the airbox to prevent it leaking.

I installed a 10mm hose fitting with a tap where the stock hole is in the airbox. I close the tap when I plan to go offroad.

Currently using a snorkel "ram" head. After a couple of trips where it is dusty, you can feel the zook start to choke. I feel it would have been wiser and cheaper to invest in a 2" donaldson.

A donaldson pre cleaner (dyson used this design in vacuums for a reason) coupled with the stock air filter, is one of the best solutions for a 4x4.

Its cheap, its easy, and cleaning the pre filter is damn easy.


Foam air filters on things I have used have been such a PITA.
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