Dolmar 7900 HD Air Filter Kit - Pics and Videos

[AUSSIE1]

Well then we all agree.

 

[AUSSIE1]

No worries mate. Not after free stuff, just trying to help out 6400-7900 owners with possible filtration problems and to stick it up the anti Dolmar boys who have used the average standard filter setup to bag them
As I mentioned, by passing this test I can't think of any other situation in sawing where it would fail.

So there has been alot of opposition this setup?

 

[WoodChuck'r]

Sorry Woody for the hijack.

Hijack?! I would never consider looking at it that way.


We're making Dolmar look good with this thread. MC-Dub and I even have feathers in our pimp hats as we walk around with our pimp canes as we pimp Dolmar. This thread is not at all close to being hijacked!!! If anything it' being highly-pimped!!!

:greenchainsaw:

 

[AUSSIE1]

Hijack?! I would never consider looking at it that way.


We're making Dolmar look good with this thread. MC-Dub and I even have feathers in our pimp hats as we walk around with our pimp canes as we pimp Dolmar. This thread is not at all close to being hijacked!!! If anything it' being highly-pimped!!!

:greenchainsaw:[/QUOTE


Dolmar have come up with the goods.
It's a shame the bigger two couldn't get of their butt's with filter issues as Dolmar have done.

Husky solve the prefilter issue with there "Air injection" but fail with the fines in the larger saws.

 

[056kid]

Thats why the old timers put oiled foam filters on their 2100s.


I think Husqvarna would top them all with a good pre filter on the exitsing filters,(not the lo-top ones..).







Does the 7900 have the same air injection theme as the others?

 

[WoodChuck'r]

Does the 7900 have the same air injection theme as the others?

No.

 

[MCW]

So there has been alot of opposition this setup?

Hi Al.
Not really oppostition by guys in the know mate but a lot of guys have used it's looks to bag Dolmar and a lot of people have used the standard filter setup to bag the Dolmars as well.
Looks don't make a saw bad and now with the HD setup the filtration is on par with the best. The anti-Dolmar guys haven't got a leg to stand on and are running out of things to use in any argument

 

[MCW]

Hijack?! I would never consider looking at it that way.


We're making Dolmar look good with this thread. MC-Dub and I even have feathers in our pimp hats as we walk around with our pimp canes as we pimp Dolmar. This thread is not at all close to being hijacked!!! If anything it' being highly-pimped!!!

:greenchainsaw:

And the gold chains man. The gold chains...
And the Cadillac, dumped on it's guts...
And the wenches, although I can't seem to find any to stick in my Caddy...

 

[AUSSIE1]

Thats why the old timers put oiled foam filters on their 2100s.


I think Husqvarna would top them all with a good pre filter on the exitsing filters,(not the lo-top ones..).

Don't know about topping them all, but need something for the larger saws.

I know it's purpose is for prefiltering, but wondered if it helped the secondary with the fine particles.

 

[tdi-rick]

Well then we all agree.

Hmm, maybe I should be worried.....

 

[AUSSIE1]

Hmm, maybe I should be worried.....

Relax Rick........not everything!

 

[tdi-rick]

Don't know about topping them all, but need something for the larger saws.

I know it's purpose is for prefiltering, but wondered if it helped the secondary with the fine particles.

It shouldn't. (in theory)

What a lot fail to grasp is that as a filter loads efficiency increases dramatically, right up past the point that it impacts airflow/performance.
eg. the Donaldson and Fleetguard elements I use in one of the vehicles start off around 98.9 to 99% efficient (according to the relevent ISO test) and end up better than 99.9% efficient at the end of their life.
K&N's start off around the 97-98% efficiency mark, which actually results in a lot more dust ingress.
Of course their efficiency increases too as they load, but geez they let a lot of engine killing stuff through for a lot, lot longer.

 

[MCW]

It shouldn't. (in theory)

What a lot fail to grasp is that as a filter loads efficiency increases dramatically, right up past the point that it impacts airflow/performance.
eg. the Donaldson and Fleetguard elements I use in one of the vehicles start off around 98.9 to 99% efficient (according to the relevent ISO test) and end up better than 99.9% efficient at the end of their life.
K&N's start off around the 97-98% efficiency mark, which actually results in a lot more dust ingress.
Of course their efficiency increases too as they load, but geez they let a lot of engine killing stuff through for a lot, lot longer.

G'day Rick.
I think it's about time you talk to your filter engineer mate and tell him to get into the chainsaw filter market
I know, he's probably more interested in a filter for mining machinery at $2000 a pop But...
Just ask him...
Pretty please?

 

[AUSSIE1]

It shouldn't. (in theory)

What a lot fail to grasp is that as a filter loads efficiency increases dramatically, right up past the point that it impacts airflow/performance.
eg. the Donaldson and Fleetguard elements I use in one of the vehicles start off around 98.9 to 99% efficient (according to the relevent ISO test) and end up better than 99.9% efficient at the end of their life.
K&N's start off around the 97-98% efficiency mark, which actually results in a lot more dust ingress.
Of course their efficiency increases too as they load, but geez they let a lot of engine killing stuff through for a lot, lot longer.

I don't think a lot of people have trouble grasping this.

This is why I'm thinking that possibly the prefilter is assisting the secondary with the finer particles.
For a matter of interest a half a doz cuts with out the prefilter in Redgum as you would a Husky.
If the Dolmar filter fared better then it would suggest Husky needs look at their filter media.
No matter. Was just a thought

 

[madhatte]

So I guess I'll be buying one a' them there filter kits now. I'm sold.

 

[WoodChuck'r]

So I guess I'll be buying one a' them there filter kits now. I'm sold.

:wave:

Hell yeah.
--

Hey 'Dub, we oughta be Dolmar reps. You got Aus, I got good'ole North A.


We can do it, one AS member at a time.

 

[tdi-rick]

G'day Rick.
I think it's about time you talk to your filter engineer mate and tell him to get into the chainsaw filter market
I know, he's probably more interested in a filter for mining machinery at $2000 a pop But...
Just ask him...
Pretty please?

Yeah, while Ben's involved in the research side, we've discussed this a few times and he was talking of making a better filter for his 357XP, but I think he's just too damned busy.

The only thing that beats paper these days (the boys in white coats like to call it 'cellulose fibre' ) is the nano-fibre synthetic media that Donaldson and Mann-Hummel hold most of the patents on, although there's a small manufacturer in the US that has some really switched on engineers and makes a really good nano-fibre filter. They are only small though and are concentrating on the racing market ATM, but that makes them able to do small runs too.

 

[tdi-rick]

I don't think a lot of people have trouble grasping this.

[snip]

Most seem to, at least on the 4WD forums, they all seem to think that when you change the air filter in a car the engine is getting cleaner air...

 

[AUSSIE1]

Most seem to, at least on the 4WD forums, they all seem to think that when you change the air filter in a car the engine is getting cleaner air...

One of the biggest misconceptions is using filters like Ryco etc and think they provide efficient filtering, whether it be air, oil or fuel.

I WAS one of them.

You wouldn't think you need to net research but learnt it is necessary.

 

[ciscoguy01]

Trippy

I think I like it

opcorn: