What's on your bench?

[T.Roller]

My advice on the 660 (for whatever it is worth), timing advance and muff mod … good, don't forget to remove the limiters from the carb at the same time.

I have found that many unported 660s run stronger if you leave the baffle in, just drill a 1/2 hole in the back. Then, just drill two 1/4 or 3/8" holes on the high right side of the muffler cover, as close to the seam as you can get. On many of them, removing the baffle completely kills the torque. I've even put baffles back in on some ported ones I've got. If I'm running a big saw, I want to be able to lean on it.

It has nothing to do with that. It's the *s-word port timing

 

[T.Roller]

Wow hope that's not the case here with this one because that's exactly what I done took the baffle out and opened the outlet hole up to about the size of the deflector we will see tomorrow how it pulls... he also has a 8 pin sprocket on it may want to go back to a 7 pin

It's all in the tune man but it's still a unported 660

 

[460 magnum]

It's all in the tune man but it's still a unported 660

Yeah he just keeps it in his truck while he is running the processor incase the timber cutter misses a knot or something like that. Heck it wears a 20inch bar

 

[T.Roller]

Yeah he just keeps it in his truck while he is running the processor incase the timber cutter misses a knot or something like that. Heck it wears a 20inch bar

Hell I'd keep a 8 pin on it then

 

[MustangMike]

I'm not so sure about that. About the only thing wrong with my Cross jugs was the intake was too low (83/84). The one jug I got back from T-4 had the intake filled (was 80.5), and I think he did that to the other one also. So …

I think there are lots of factors, but most of my 660s like some baffle in the muffler.

 

[T.Roller]

I'm not so sure about that. About the only thing wrong with my Cross jugs was the intake was too low (83/84). The one jug I got back from T-4 had the intake filled (was 80.5), and I think he did that to the other one also. So …

I think there are lots of factors, but most of my 660s like some baffle in the muffler.

The cross MMWS jugs are ported jugs Mike.

 

[T.Roller]

I'll school you if you want Mike but you'll just argue a point your ignorant of so I won't waste my time

 

[MustangMike]

And they run stronger with some baffle in the muffler.

 

[T.Roller]

Some MFers just know how to play checkers

 

[MustangMike]

I much prefer Chess + Pinochle.

 

[MustangMike]

Look, I'm not looking to fight with you, and I don't call you names, but I posted something about this previously and got a like from TM, so I don't think I'm completely off base.

 

[MG porting]

I heard the more open the muffler the more you have to raise the transfers. Not sure how to explain that... but it makes sense with back pressure and whatnot.

Because raising the transfers tword the combination chamber increases torque but there's a fine line on how far you take them.

 

[T.Roller]

I have a little suprise for yall tomorrow....

 

[MG porting]

Oh God her we go!!

 

[huskyboy]

A stock 661 will give a ported 660 a run for its $. Very powerful saw.

 

[Roadfxr]

660 was the most disappointing saw I’ve ever ran. Have never given them a second thought.

 

[huskyboy]

I’d rather have the old school flattop 066 or 064 than a 660 if I had a choice. They look better too.

 

[460 magnum]

Have to agree with u on that

 

[T.Roller]

A stock 661 will give a ported 660 a run for its $. Very powerful saw.

I love a 661. It took stihl long enough to get it right but they did

 

[Roadfxr]

I’d rather have the old school flattop 066 or 064 than a 660 if I had a choice. They look better too.

I agree. There’s something about a flattop 066