bcorradi
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Do you woodsport stihls for others, or just huskies?in my humble opinion the best first mod for an 026 is jack it up and throw a 346xp under the hood and then itll run :hmm3grin2orange:
Do you woodsport stihls for others, or just huskies?in my humble opinion the best first mod for an 026 is jack it up and throw a 346xp under the hood and then itll run :hmm3grin2orange:
Yeah you are correct and that is a definite disadvantage with an 026.
I've done a bunch of these saws Steve......and I've done them several different ways. I've just cut the protruding band out up the the dome (that's the one that needs the right cutter shape)......I've cut the whole dome out all the way to the combustion chamber on a 2° angle....I've also cut it out flat........I've done a few different popups as well.
On the carbs.........polish, thinning, and a little venturi boring. There's not much venturi to cut in the 194 though. I would love to find a carb that fits these saws without the butchering that it takes to put an 044 carb on them.
With one of these little machines you could really wring out what helps and what doesn't:
That would be the trick. If I was a smart man I would build something like that. :msp_rolleyes:
Building a Dyno is a project that has intrigued me for a while now. A 100 amp alternator and a load bank that was monitored with a computer program could work.In that case...............are you done yet???:msp_thumbup:
Mike
I wouldnt let that Randy guy touch any of my saws, no way:msp_tongue:
I get a lot of guys asking questions about port work. I'm building a really nice 026 for a member and thought I would show a stock jug side by side with a ported jug. This would be a great thread to throw out any questions about porting. If I can't answer them there are many guys here that can.
In this shot you can see that I didn't really enlarge the intake much, just smoothed out the casting lines and blended it out.
I just take the lip out of the lower transfers on a mild work saw. I don't find it necessary to open them any more on a work saw of this size.
I spend much more time on the upper transfers than the lowers. Here I've widened these as much as possible, and raised them a few degrees as well.
The exhaust port gets quite a bit of work. I widen the port, and increase the outlet size as well. On this saw the port is already fairly high (164° duration - 98° from TDC) so it's not been raised at all.
The shiny spot in the center of the exhaust port is the plating, like I mentioned above this port is at the stock height, only widened.
I noticed that you kept the lower and right side thickening on the intake port. I was practicing on a justsalveagable 026 jug and before I saw that you your photo were I saved these. I filed them to match the radius of the other two sides. Did I do something wrong?
andy
It's got a lot to do with preference Andy. I match the intake boot to the jug.....nothing more. I like to think that it will flow better matched as closely as possible. Also something to consider is flow velocity......bigger ain't always better.
awesome thread Randy. I just made a trade for a freshly rebuilt 026 and ive wanted to port it since i took it home. When the time comes would you be against cutting the piston for me? Its the only thing i cant do myself.
These are pics of the work I did widening the ports this am before work. The exhaust is now 29mm and the intake is just before the edge of the skirt. As with the photos I saw on thread post, I smoothed the bottom edge of the lower transfers. I don't have a tool to widen the upper transfers towards the intake. I think I am going to leave out the base gasket and leave the exhaust timing stock (98), as I saw was done to a saw in this thread. Now the compression will go up a touch and the exhaust timing will retard a bit but do these two cancel each other out? I was thinking of either lowering the intake a degree (more time area and earlier) or trimming the skirt up a smidge. What should I do next, or just mount it and see what happens and then go forward. I am getting a hang of the timing wheel and am sort of mimicking what I have seen in these posts. Still using the training wheels and not ready for a two wheeler.
andy
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Also something to consider is flow velocity......bigger ain't always better.
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