So I bought a 660

Baffle removed

 

Oak and new. Oregon LGX

 

Does it have a 7t or 8t sprocket?

 

I've run one with a 32" 7 pin set up and a 20 inch 8 pin.

I was really impressed with cutting the big stuff. I'm going to borrow one to section up some large maple. My 441 will work in 25" 7 pin dress, but I'm impatient. The 660 is made for the big stuff. And it's weight with a long bar would not make it my choice for anything else.

 

It's a 8 pin. It's not that the saw has ever run bad for me, it's that my 372 runs just like it. I just expected a 92cc saw to blow my socks off.

 

Not going to happen with a stock 660. They're not that impressive even having 20cc over the 372. It does look to be running about like a stock 660 should.

 

Mike Im not understanding this. Where did Stihl drop the ball on the 660 that a 70cc saw would outperform it even if the 660 is stock? That saw is 21cc more? Ported would be a different ballgame though in really big wood that 660 has more torque? Where is the cutoff point size in wood for a ported 372,461, 441c?

 

The early ones did. The later ones are so hamstrung by epa the power is down. Look at the dyno sheets. What was once almost 8 hp is making 6.

 

Porting gets it back up there above 8 though? Guess a 660 in stock form would be a terrible choice unless someone plans on porting it. That 660 ported will pull away in lower rpms and big wood though?

 

Every saw manufacturer has to follow the EPA standards today. So using that, my 372 should be weaker on a % as compared to the 660. And I'm not disputing anything you're saying ,mdavlee. But why buy a $1200 saw and only have it perform like a $750 71cc saw? Unless you're porting it of course, but I'm talking stock.

 

Without spending a dime, you can get more out of that saw. Follow Moparmyway 's suggestions on tuning that carb (including pulling the limiters.)

Pop the muffler halves apart, and take your favorite drill/ Dremel/ Unibit/ whatever and have at it.

Re-assemble, tune, and go find some bigger wood for it to eat. If you can rebuild that old Ford dumper, you can make this thing run much better in about 10 minutes of your time.

 

I have no doubt I could make the saw scream with y'alls input. But my point about a stock 72cc saw running right with a stock 92cc saw. All this talk, maybe i need to to run the two and time them. Sounds like another video sometime

 

Bingo!! Lets see it in that same wood u were cutting and for fun use bigger wood to compare again. Id like to see where the 660 pulls away in what size wood?

 

Id like to see how a ported 460/461 would run against both of them too

 

Oh ya! U can wake that 660 up just by modding the muffler . And porting it will bump it over 8hp

 

I don't think I can find any bigger wood laying around....I'll see. That piece I'm cutting on is getting toward a fork so it gets wider.

 

Measure it so we will know what size. That will be an interesting comparison

 

Its interesting to see that when you install a muffler that isn't restricted on these saws, that power pretty much comes right back.