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South_Prairie_Saw

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Since we're talking about porting, doesn't it seem obvious I'm talking about the cylinder?
Yes obviously. I’m more confused by you stating that “they” designed, cast and machined a cylinder. Rip saw? Are you asking why stihl doesn’t port it? “They designed it, cast it and machined it”.

I think that we are basically saying that apparently it’s not as easy as loading cylinder on a fixture and “writing a program” and smashing that green button.
 

Lions fan

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Yes obviously. I’m more confused by you stating that “they” designed, cast and machined a cylinder. Rip saw? Are you asking why stihl doesn’t port it? “They designed it, cast it and machined it”.

I think that we are basically saying that apparently it’s not as easy as loading cylinder on a fixture and “writing a program” and smashing that green button.
Exactly what I'm saying. If it was as easy as clamping it in a fixture and letting your cnc machine port it, Stihl and Husqvarna and Farmertech would do it at the factory.
 

fredx

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Exactly what I'm saying. If it was as easy as clamping it in a fixture and letting your cnc machine port it, Stihl and Husqvarna and Farmertech would do it at the factory.
I am gonna have to respectfully disagree , I think they design & engineer them conservatively for multiple reasons.
But thats just my opinion
 

Sloughfoot

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I'm never gonna get over adult men wearing sleep wear in public! Or sweat pants ,unless you're leaving or going to the gym.
I don't really give a *s-word about what other people do, but shame seems like a thing of the past.
It's a good week for me if I can get a fair amount of running around town done and not see a bare ass or two. Awhile back there was a gentleman standing on the corner of a busy intersection with his drawers dropped to his ankles. That one was pretty funny.
 

fredx

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What would be cool if some company would make a quality aftermarket cylinder ( material same as OEM ) that meets material specs & quality and dimensions of a ported one. Kind of like the big 3 automakers have a line of high performance components such as cylinder heads, cams ect..
 

huskihl

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What would be cool if some company would make a quality aftermarket cylinder ( material same as OEM ) that meets material specs & quality and dimensions of a ported one. Kind of like the big 3 automakers have a line of high performance components such as cylinder heads, cams ect..
The owner of this forum had Randy port a 660 to have an Asian company cast it. Worked for a few copies but after a few months of production the quality was shot and they needed work to run right. So the idea was scrapped
 

EFSM

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The owner of this forum had Randy port a 660 to have an Asian company cast it. Worked for a few copies but after a few months of production the quality was shot and they needed work to run right. So the idea was scrapped
Cross cylinders was the brand. As I remember, the first preproduction ones they shipped to Randy were really nice, good enough to get his stamp of approval. But the production ones were your average Chinese hit or miss.
 
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