anyone try a 9 on one of those?
Too easy to throw chains...
660 w/8 pin?
- Thread starter Joesell
- Start date
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Too easy to throw chains...
but fun until then?
or takes your leg off...
...and your athletic supporter!
jock glitch
ncsawguy
ArboristSite Operative
I think anything mastermind did would be fun
Homelite410
Hack with a CNC Mill
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I saw a kid do that at hedgefest, ported 385 and a 10 pin. Derailed and cut his fuel tank......... I don't remember if it drew blood or not!
Ron660
Addicted to ArboristSite
I'm also considering an 8-pin for my 660. Will the rpms increase with an 8-pin? I have a 28" bar.
Engine rpms or chain rpms?
It's like switching to a higher gear on a 10speed bike. You'll essentially move the chain faster, but with a heavy load, you'll start to bog.
firefighterwolf
ArboristSite Operative
Chain speed will increase when going from a 7 to 8 pin.
Ron660
Addicted to ArboristSite
Engine rpms? The last time I checked my engine rpms it was 12880. So chain speed will increase not engine rpms? So with the 8 pin I might cut a little faster?
Ron660
Addicted to ArboristSite
I was thinking the 8 pin would act like an overdrive...higher gear...faster speed (chain speed..not sure about engine speed). But I guess there's a downside to it....may bog down in larger stuff and maybe not designed for the longer bars.
and, make sure to run full-skip chain for bars from 32" on up...easier on the saw and a hell of a lot quicker to sharpen.
On a Mastermind 660 I accidentally tried a 36" with 8 pin on rock hard gum(forgot to change to 7pin) it wasn't happy and kept jamming(new Stihl semi 3/8 ) in the felling cut, it was breaking in still but wasn't happy. Put the 7 on and it cut happily for the day. Had it been softwood it probably would have been fine
