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

[mdavlee]

Do you think the timing issue is an oversight on Stihl's part or something they needed to do for emissions and/or reliability?
There is also a chance that they deliberately detuned the 660's timing so it wouldn't embarrass the 880. That should keep the conspiracy theorists happy
With the amount of fuel a 660 goes through I'm surprised they can pass any emission standards anywhere on earth!

I think its been done to help pass EPA stuff along with the pencil eraser sized muffler outlet.

 

[Mastermind]

Do you think the timing issue is an oversight on Stihl's part or something they needed to do for emissions and/or reliability?
There is also a chance that they deliberately detuned the 660's timing so it wouldn't embarrass the 880. That should keep the conspiracy theorists happy
With the amount of fuel a 660 goes through I'm surprised they can pass any emission standards anywhere on earth!

It's an EPA thing Matt.....

I think they raised the exhaust and choked the muffler opening down in an effort to use the muffler can as an afterburner of sorts.

 

[Mastermind]

Matt........you need me to port a 660 jug and send it to you. Your world would be forever changed.

 

[MCW]

I think its been done to help pass EPA stuff along with the pencil eraser sized muffler outlet.

I'd think so. Stihl engineers ain't stupid and being German they will have a reason for everything they do. I can't see the port timing of a 660 being an oversight on Stihl's part.

 

[MCW]

Matt........you need me to port a 660 jug and send it to you. Your world would be forever changed.

No it wouldn't as no matter how well you port a 660 it will still balance like a pig and use truckloads of fuel I'll stick with my 390XP thanks which is the reason I sold my 660's.
I do have a Chinese 660 in the shed though...

 

[Mastermind]

I agree that the 660 is an unbalanced saw.......I forgot that you moved to the 390XP.

 

[treeslayer2003]

chinese?

 

[MCW]

chinese?

Two Chinese companies are making 660 copies now. In typical Chinese fashion the carby needed replacing with an OEM Walbro. Don't laugh though, it's the best running stock 660 I've seen. Obviously not hamstrung by the EPA
Don't flame me though as I was asked to test one by a Chinese company I do business with which isn't the manufacturer. I did have to pay for it but got a bargain.

 

[treeslayer2003]

thats interesting Matt. i don't doubt it.........mine was a pure pig as stock, a real let down. but then i thought the same of a new 385. i guess we can just blame the epa for it all lol.

 

[MCW]

thats interesting Matt. i don't doubt it.........mine was a pure pig as stock, a real let down. but then i thought the same of a new 385. i guess we can just blame the epa for it all lol.

The bastards...
Tree hugging hippies...

 

[wyk]

I think the thread title could have been a bit less provocative. We're comparing a single 461 against a single 660.
Stihl are probably talking to their lawyers as we speak

In saying that though I do actually enjoy these types of tests as it is an objective meaurement, not subjective. Without a dyno most people would assume that a simple muffler mod increases power by 20%, just from the sound.

Some say because women have two bottoms that they are well in excess of 20% more powerful...

 

[treeslayer2003]

LMAO.......more powerful than a 425 cat if ya make um mad lol.

 

[MCW]

Some say because women have two bottoms that they are well in excess of 20% more powerful...

I was simply talking about making the hole bigger!

 

[chadihman]

That is the 661.......

Coming soon.

Hey, I owe you a woods port.......when are you gonna cash in?

So sorry Randy. I'm in no hurry and I'm torn between sending my 261 cm, 361, 460, or my 461. I have a 361 in a box. All parts are there just a basket case that I haven't made time for yet. I also have a 460 basket case.

 

[wyk]

I was simply talking about making the hole bigger!

Don't be modest. Sure, you've made a few holes bigger, alright...

 

[treesmith]

I'm torn between sending my 261 cm, 361, 460, or my 461

Decisions, decisions, nice problem to have

 

[wyk]

I agree that the 660 is an unbalanced saw.......I forgot that you moved to the 390XP.

I don't mind the balance on a 660. I just get tired of the white finger after using one all day. That thing seems like it was designed to vibrate.

 

[Brush Ape]

Without a dyno most people would assume that a simple muffler mod increases power by 20%, just from the sound.

..........or the, "Feel." Even a Mighty Brush Ape feels better on some days than others.

To judge an engine's performance by how good it feels is too esoteric. Some guys only like a vibrating leaking old Mac. Some want it smooth. When you are young and dumb and full of rum, you're a hammer when everything looks like a nail. Everybody appreciates Chad Dynoman's contribution. Strap on some of them $200 clones on that thang and see how many hard working tree men are willing to buy Chinese junk.

And don't ever think I try to exclude myself from being a dumbass. I've got more stuff stuck and blowed up more stuff than a regular guy will ever aspire to.

 

[Mastermind]

So sorry Randy. I'm in no hurry and I'm torn between sending my 261 cm, 361, 460, or my 461. I have a 361 in a box. All parts are there just a basket case that I haven't made time for yet. I also have a 460 basket case.

No hurry here either. I just want to pay when I owe.

I'm sure you understand that.

 

[dl5205]

...So sorry Randy. I'm in no hurry and I'm torn between sending my 261 cm, 361, 460, or my 461...

Not to derail further, nor am I trying to tell you what to do, but I would port the 261. From observation, not from experience, I think a ported pro 50cc saw becomes most folks "Go-To" saw. It appears as though Randy does a fair job on the 261, plus you'll have the M-Tune.