2 Man Gtg

[Moparmyway]

Yea, I also heard that the larger case capacity on both the 460 & 461 generate more torque than the hybrid, but the hybrid is lighter.

Those 661s must be monsters, because stock 660s never impressed me (although ported ones really did).

I have seen some real strong 066/660's after a good muffler mod. You MUST remove the cage and let them breathe !!

 

[KG441c]

I have seen some real strong 066/660's after a good muffler mod. You MUST remove the cage and let them breathe !!

The torque on the hybrid also depends on how u port it imo

 

[SAWMIKAZE]

I have seen some real strong 066/660's after a good muffler mod. You MUST remove the cage and let them breathe !!

I expierenced the same , i was advised against it bein taken out but i dont use a 90cc saw enough for it to really matter...i have a gutted 660 muffler thats triple ported , it made a nice difference on the 064 i had , but i had to use the spacer for it to work.

 

[Moparmyway]

View attachment 408206

I expierenced the same , i was advised against it bein taken out but i dont use a 90cc saw enough for it to really matter...i have a gutted 660 muffler thats triple ported , it made a nice difference on the 064 i had , but i had to use the spacer for it to work.

I don't know who advised keeping that restricted swiss cheesey rattle box in there ...........

I have had real good results with the single stock opening. I make them as big as the deflector allows and swap out the stock screen for one that breathes much better.

 

[SAWMIKAZE]

I don't know who advised keeping that restricted swiss cheesey rattle box in there ...........

I have had real good results with the single stock opening. I make them as big as the deflector allows and swap out the stock screen for one that breathes much better.

I have sheets of less restrictive screen that PA dan hooks me up with , guys that work with them say it takes away from the strength the cage provides for the muffler , i believe that...timber fallers expierence things most here wont.

 

[SAWMIKAZE]

And i think redbull got his best cut times with the cage intact on his 660 tests with the muffler triple ported , if i did it again id just want the front of the cage out , i dont sweat 1 or 2 seconds in a cut , i like the heat gettin out.

 

[KG441c]

I kinda favor gutting mufflers on the older saws and modding less on the newer autotune/mtronics saw?

 

[SAWMIKAZE]

Gotta wonder why a 440 muffler came hollow ? And a 660 didnt ?

 

[KG441c]

Less rpm and more torque range. Thats just a guess

 

[Moparmyway]

I have sheets of less restrictive screen that PA dan hooks me up with , guys that work with them say it takes away from the strength the cage provides for the muffler , i believe that...timber fallers expierence things most here wont.

So long as you keep the supports where the bolts are, there isn't any problems as far as strength goes. I have 5 or 6 with tree companies and they are just loving the difference.

As far as testing goes, I don't want to take away anything from Redbull, but my results don't line up with his. Maybe due to the screen, the opening, the tune, or placement(s) of the opening(s)..............IDK ............... but everyone seems to modify mufflers differently.
It could be the combination that does it. The right ingredients make a great cake, too much of this or not enough of that and you only have bitter bread.

 

[Moparmyway]

I kinda favor gutting mufflers on the older saws and modding less on the newer autotune/mtronics saw?

So far, any M-Tronic saw that I have looked in had no cage and was just about a straight out opening. I haven't looked in them all though.

 

[KG441c]

I dont care for the huge baffle in front of the exhaust opening such as a 461. I dont care for the idea of trying to hold hot gasses in and stuff them in backwards

 

[SAWMIKAZE]

It doesnt matter to me , as long as the heat gets out im happy , ive heard people equate noise with power..idk..as long as they breathe and the throttle gets more snappy im content.

 

[KG441c]

It doesnt matter to me , as long as the heat gets out im happy , ive heard people equate noise with power..idk..as long as they breathe and the throttle gets more snappy im content.

I think the Husky/Johnnies have alil snappier response than Stihl

 

[SAWMIKAZE]

To the two bobsie twins: At least my life is not so pathetic that the highlight of my day is being someone's hemorrhoid.

Can't you guys find a thread for professionals you would rather be reading instead of harassing us?

Why don't you guys show up at one of the GTGs so I can see what real professional's saws run like?

And while you are at it, get a life.

Im no professional mike , ask keith ..im a lousy saw operator...im workin my way up to cutting with you at a GTG.

whats a bobsie ?

 

[bikemike]

Gotta wonder why a 440 muffler came hollow ? And a 660 didnt ?

My guess would be for more compression in the jug to help prevent wear and tear on bearings with the bigger piston and longer stroke. Just a guess

 

[SAWMIKAZE]

I think the Husky/Johnnies have alil snappier response than Stihl

Probably overall keith..i have some stihl saws that are pretty snappy.

 

[bikemike]

So long as you keep the supports where the bolts are, there isn't any problems as far as strength goes. I have 5 or 6 with tree companies and they are just loving the difference.

As far as testing goes, I don't want to take away anything from Redbull, but my results don't line up with his. Maybe due to the screen, the opening, the tune, or placement(s) of the opening(s)..............IDK ............... but everyone seems to modify mufflers differently.
It could be the combination that does it. The right ingredients make a great cake, too much of this or not enough of that and you only have bitter bread.

The best muffler mod is a old steel funnel bolted to the exhaust port. Loud pipe save lives

 

[big t double]

.....whats a bobsie ?

Which one are you Ryan? I assume the one on the left?

 

[SAWMIKAZE]

Which one are you Ryan? I assume the one on the left?
View attachment 408230

Im on the right , i like dogs.