andyshine77
Pinnacle OPE Member
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- 4:53 PM
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- 3830
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- Aug 17, 2017
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IMHO some saws will not last as long with lots of compression in a true work setting. Often real high compression isn't needed anyway, and if you go too far the saw won't run free and you start going backwards. I have actually discussed this with several other saw builders. For instance I really see little need to push a 372 over 180psi of compression, some of the best running 372's I've ran had less than 180. The 390xp is another example, the big end is a bit weak and you don't want real high compression if you want the saw to last. Obviously you can push smaller saws much farther when it comes to compression without the negative effects.
Stihl's typically can take the compression better than husky saws, and some saws like the Dolmar 7900 come from the factory with 180+psi of compression, one reason they run so well.
And yes more oil is a must when you start pushing compression. Oil isn't just there for lubrication it can also act as a cushion.
I will say many of the so called woods ported work saws at gtg's likely wouldn't last a week on the job, if that long IMHO. At the same time others would surprise you how long they would last, it really comes down to how the saw is built. I personally wouldn't want finger ports in a work saw either, even though many have had great success was finger ports.This is just my opinion remember.
So to say a strong ported saw won't last is false IMHO, as is saying every ported saw will last just as long a stock or mm saw.
The few who actually took the time and documented the difference in the field, saw a significant increase in production with a properly modified chainsaw.
[emoji111]
Stihl's typically can take the compression better than husky saws, and some saws like the Dolmar 7900 come from the factory with 180+psi of compression, one reason they run so well.
And yes more oil is a must when you start pushing compression. Oil isn't just there for lubrication it can also act as a cushion.
I will say many of the so called woods ported work saws at gtg's likely wouldn't last a week on the job, if that long IMHO. At the same time others would surprise you how long they would last, it really comes down to how the saw is built. I personally wouldn't want finger ports in a work saw either, even though many have had great success was finger ports.This is just my opinion remember.
So to say a strong ported saw won't last is false IMHO, as is saying every ported saw will last just as long a stock or mm saw.
The few who actually took the time and documented the difference in the field, saw a significant increase in production with a properly modified chainsaw.
[emoji111]
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