Anyone tried porting an 090, the 137cc size?
Pioneerguy600
Pioneerguy600
Just curious why would any one want to port a saw that big. Would love to have one though.
God didnt build it,go for it.Why not,I have ported every other saw I run as production saws from 60 cc up to 100cc, the 090`s are only 37cc bigger. I think they should also benifit from a woods porting job.
Pioneerguy600
At one time I seen some pics of the 10 cube(159cc) 090, had some wild things going on in there, so I'm sure it would mod just fine
Oh Boy!! Where can I get one of those???
Pioneerguy600
The problem with porting an 090 is that there's so much rotational mass that it's unsafe at any higher RPM. They even have governors to prevent overspeeding when out of the cut at their stock specs. I'm with everyone else here - I'd love to see it done. But as for the longevity, or more importantly safety, I can't really speak to that.
Well since there were only something like 10 or 12 made, your options are pretty slim... You could come out to Washington and try to rob Wayne Sutton of his, or I think rupedogg here out in California has one too. Here's a picture of Wayne's that I saved to my computer a long time ago, hope he doesn't mind me passing it on
That is areally cool looking saw and rare too from what you and Frank have stated. I have a newer 090 that Lawrence shipped me from out your way,it`s a 090AV with a 6' bar and stinger handle. With that long bar I can hardly use it by myself, the bar simply overpowers it and makes it nose heavy. I will post picts of it soon.
Porting does not necessarialy mean that rpm be raised substantially. On some of the big cc saws that I have done I have kept the gain in rpm down under 1000 but the engine can keep the rpm up in the cut without falling back much. One of my 066`s is running at 15,000 unloaded but will keep 13,000 while in the cut. I would not want the 090 to rev past 8,500 by much unloaded but be better able to keep the rpm up in the cut. My older 090 is set for 8,500 unloaded and it drops back closer to 5,000-5,500 loaded.
Would woods porting it allow the engine to keep more of its rpm up when loaded? Thats my question and would like some feedback before I tear into it.
Pioneerguy600.
Oh Boy!! Where can I get one of those???
Pioneerguy600
You occasionally see one on eBay.. I had one a few years ago.. and let it go. Some days wish I had kept it (really not much use for it now.. but a nice saw to have in shop). There really is not much out there that quite compares to that saw. Didn't have some of the features of the saws today.. but a brute of a saw. Don't think I could run one all day now though.. a lighter saw works just fine most days. Having said that, I have never actually seen an 090 run beside one of the 880's to really compare.
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