Mastermind Meets The MS661 C-M

[bootboy]

Next time you have that jug off, I'd love to see some more pics of the port work.

 

[Mastermind]

Next time you have that jug off, I'd love to see some more pics of the port work.

Deal. I'm gonna go back in and take a little more from, and tighten the squish a little.

 

[Philbert]

The 661 does feel like a much smaller saw than the 660.

'Smaller' as in 'less powerful', I am assuming?

Philbert

P.S. - don't wan't to start an oil thread, but when did you add "Saws used at mix ratios of less than 40:1 will not be covered by Mastermind Worksaws" to your signature?

 

[chadihman]

If you could find some way to eliminate the hoses and fittings to be sure they weren't causing deflection I would trust it's readings more. The way it's set up though, having to twist the hoses makes me wonder.

I changed that a while ago. The hyd needle valve is now mounted to the pump and there's no pressure in the flexible hoses to straighten them out. Ill get some more run time and video's of the dyno. Enough already. Sorry to hack your thread man.

 

[Trx250r180]

still single port on the muffler ?

 

[Metals406]

I say that video is fake! Clearly that's a really well carved and airbrushed block of Styrofoam to make it look like a log!!

Now we know what took so long to make a video!



Sent using a miniature supercomputer.

 

[chadihman]

So did you see a dual port muffler in the ipl?

Nope

 

[Locust Cutter]

Now I'm going to have to test drive one of these. I was pretty much set on the 395, but I an open to browsing a bit...

 

[chadihman]

I really ain't that sold on the dyno.....

I really ain't that sold on the ported 661.......

 

[Mastermind]

still single port on the muffler ?

Yep, still a single port. When the muffler Chad is sending gets here I'll try some different stuff with that.

I really ain't that sold on the ported 661.......

Well at this point, that makes two of us.

 

[treesmith]

Yep, still a single port. When the muffler Chad is sending gets here I'll try some different stuff with that.



Well at this point, that makes two of us.

Dear santa..........

 

[wigglesworth]

I really ain't that sold on the ported 661.......

Well at this point, that makes two of us.

I've thought about this saw all afternoon....

 

[Mastermind]

I've thought about this saw all afternoon....

I've been in a sweatlodge cooking my brain......

 

[redbull660]

opcorn:

 

[LowVolt]

I've thought about this saw all afternoon....

And..........

 

[Eccentric]

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[chadihman]

I've been thinking also. Stihl has done there homework. The tight crankcase, quad port transfers, open muffler and the piston stuffer make it a bad azz saw without much left to squeeze out.

 

[Mastermind]

I've been thinking also. Stihl has done there homework. The tight crankcase, quad port transfers, open muffler and the piston stuffer make it a bad azz saw without much left to squeeze out.

That may be true. Or, I might have approached it all wrong.

 

[Trx250r180]

I think treeslinger said a while back madsons got 1 more hp out of a 661 in another 661 thread,i think randy can beat that # when all said and done

 

[Eccentric]

I think treeslinger said a while back madsons got 1 more hp out of a 661 in another 661 thread,i think randy can beat that # when all said and done

How did Madsens measure that gain? Do they have a dyno?