I call B.S. on Stihl. My dyno doesn't lie. MS 461 is king over MS 660

[chadihman]

Chad did you test a max flow also?

Yeah the max flow didn't do anything for power with the white,green and cover or no cover vs the HD2 although after an hour of sawing might test different. The max flow will handle dirt better before cutting air flow down.

 

[chadihman]

The HD2 is worth a bit of power, no filter is worth a bit more. Lol

Hd2 is better flowing than the HD and will make a difference i especially in a muffler modded saw or a ported saw. Id say the max flow is as close to nothing as possible and I didn't see any difference from HD2 to max flow. Hd2 will handle it's needs.

 

[mdavlee]

I don't like how the HD 2 packs with dust or needs an extra per filter to an already stupid expensive filter. I run max flow now on both stihls.

 

[Deets066]

I don't like how the HD 2 packs with dust or needs an extra per filter to an already stupid expensive filter. I run max flow now on both stihls.

I have really been thinking of doing the same, the hd2 requires a LOT of cleaning.

 

[chadihman]

I don't like how the HD 2 packs with dust or needs an extra per filter to an already stupid expensive filter. I run max flow now on both stihls.

Yeah the pleated HD2 has more surface area but seems the sawdust packs in the pleats pretty good. I have to bang em out pretty hard to get it clean and hope I don't damage it.

 

[mdavlee]

I have really been thinking of doing the same, the hd2 requires a LOT of cleaning.

If you do a lot of cutting in a day its worth it. Basically a go cut and clean when you get home.

 

[Deets066]

I usually always brush the filter clean every tank, but with the hd2 you have to take them off, tap, brush, or alternative method.
Ok I think I just talked myself into a max flow. Haha or maybe it was cad.
What color filters do you guys run on the max flow?

 

[Dieselshawn]

I did a muffler opening test with my mastermind 260 on my dyno not long ago.

There is 2 openings, one in front which is a 1" long, 1/4" wide oval hole which was my first muffler mod from several years ago and Randy's neatly welded deflector with a 1/2" by 1/2" square hole on the recoil side.

Basically a dual port ms260 muffler.

I made a tin cover for both openings and dyno'd saw to see which the saw runs best with.

It runs best with both open.

 

[MasterMech]

Yeah the pleated HD2 has more surface area but seems the sawdust packs in the pleats pretty good. I have to bang em out pretty hard to get it clean and hope I don't damage it.

I have really been thinking of doing the same, the hd2 requires a LOT of cleaning.

None of that is the filter's fault. That's one thing I love about my 261 and 441 over my old 460s and the 034. Tank after tank after tank and still have clean filters.

 

[mdavlee]

I usually always brush the filter clean every tank, but with the hd2 you have to take them off, tap, brush, or alternative method.
Ok I think I just talked myself into a max flow. Haha or maybe it was cad.
What color filters do you guys run on the max flow?

I usually run green. They're a little more open pores and still filter the fine stuff.

 

[MCW]

It's interesting how northern hemisphere timbers vary compared to ours in Australia. I've had absolutely no issues with HD2's packing out with chips as our drier, harder woodchips tends to drop clean out of the filter cleats once the saw stops. I have however had major issues with unoiled Husky filters passing fines in our wood when you guys in the north haven't in your timber species.

 

[Hedgerow]

It's interesting how northern hemisphere timbers vary compared to ours in Australia. I've had absolutely no issues with HD2's packing out with chips as our drier, harder woodchips tends to drop clean out of the filter cleats once the saw stops. I have however had major issues with unoiled Husky filters passing fines in our wood when you guys in the north haven't in your timber species.

I get some fines sneaking through, but don't worry too much about it.. You really gotta put a lot of hours on a saw to see the measurable wear from ingesting some sawdust.. Most guys just don't put that many hours on a machine...

 

[mdavlee]

It's interesting how northern hemisphere timbers vary compared to ours in Australia. I've had absolutely no issues with HD2's packing out with chips as our drier, harder woodchips tends to drop clean out of the filter cleats once the saw stops. I have however had major issues with unoiled Husky filters passing fines in our wood when you guys in the north haven't in your timber species.

When milling the small chips that are still a bit wet pack up an HD 2 pretty quickly. The huskies will filter everything out that it makes for me milling.

 

[weedkilla]

When milling the small chips that are still a bit wet pack up an HD 2 pretty quickly. The huskies will filter everything out that it makes for me milling.

Depends on the husky for me, my 346 and 562 are terrible unless they have a clean smear of grease where the filter meets the air box. Saying that - they can easily do a day without cleaning, so it's easy to keep them set up that way.

 

[blsnelling]

Here's the really cool part about last nights testing. The ported 361 had more HP than the 660 at 10,000 rpms and was just a tad under the 461 at 10,000 rpms. That 361 has lots of torque in the high rpm range.

I'd like to see that saw compared to a 562XP. I'd also love to see a dyno graph of that saw. I think you'd find that it makes good useable torque and HP from 8K, all the way to probably 12K or more.

 

[chadihman]

I'd like to see that saw compared to a 562XP. I'd also love to see a dyno graph of that saw. I think you'd find that it makes good useable torque and HP from 8K, all the way to probably 12K or more.

Your a computer guy Brad. Come up with a simple to use graph that I can input my #s and I'll have a graph for all to see.

 

[mdavlee]

Your a computer guy Brad. Come up with a simple to use graph that I can input my #s and I'll have a graph for all to see.

Send me the numbers and rpms.

 

[MCW]

I get some fines sneaking through, but don't worry too much about it.. You really gotta put a lot of hours on a saw to see the measurable wear from ingesting some sawdust.. Most guys just don't put that many hours on a machine...

With some of what I cut we're not only talking about wood dust, we're talking about real dust as well. I've posted photos before of windbreak falling on corporate farms where constant machinery movement means the trees are packed with dust from the tracks. 95% of the fines getting past the filters on my 550XP, 390XP, and even the 3120XP was real dust, not wood dust. In Casuarinas the wood dust is pale yellow, the real dust is red/brown.
I'd rather not give my saws a 20 thou rebore in the first few hundred hours

Even in species like dead Redgum Stihl Australia have acknowledged wood dust is an issue, even honouring some warranties on MS880's that had terminal failures related to poor filtration of fines. This isn't something I've made up either. Stihl Australia started fitting the "Extreme Conditions" filter kits to certain Stihl models under warranty for free to stop dust ingression. This filter was only offered in Australia and South Africa. When the HD2 came along all these problems stopped.

 

[MCW]

Depends on the husky for me, my 346 and 562 are terrible unless they have a clean smear of grease where the filter meets the air box. Saying that - they can easily do a day without cleaning, so it's easy to keep them set up that way.

More often than not the issues with Husky filters is fines going straight through the filter material itself. I've never had to grease the base of a filter as spray on filter oil has stopped the problem immediately although they then clog up faster.

 

[Haywire Haywood]

Are you talking about the flock or the mesh filters. I can see the mesh filters letting in all kinds of dust, but that's what my 346 has been wearing for 10 years.