wyk

Why start with LP chain and grind the bumps off the drivelinks ?

 

Wouldn't your start with LG or RS ?

You would buy it because it was one of the more affordable 3/8 chain available at the time. Since you would be grinding on it, you wouldn't bother starting with square chisel. RS is out, the teeth stand shorter than it does on Oregon chain. Oregon chain, with the taller teeth, have more chip clearance.

In any case, that was to show you the basics of how to make a chain faster. I would assume most would get the idea.

When you say "removing the heel of the tooth" what do you mean? I always take my rakers down more than is advised and enlarge the gut of the tooth but that's a new one to me. Cheers

You remove the corner of the tail. It helps make the chain smoother as well.

http://www.madsens1.com/PDF/RacingTechfacts_93099.pdf

Thanks for the info I don't want the noise that's goes with ported saws was just looks for something that had a bit more cut and less noise

On a 40-50cc saw, you could try and run pixel/NK/Narrow kerf chain in 325. It is nearly the same kerf as lo pro, but uses much large 325 teeth.

Al just stick to standard chains

 

So if he was using that same 250 on any harder woods it would be crap?

It would be a hell of a lot slower, and the oiler would have difficulty keeping the heat down on the bar. Piltz are all marketing and little substance.

What do you mean the chain maybe messaged

Modified to cut faster. Usually removing the heel of the tooth to reduce friction, enlarging the gullet to promote better chip discharge, etc etc.

Here is the difference a chain and bar make:

And why not another Hemlock while we're at it:

No engine mods just bar sproket and chain! I need these:thumbup: but not the bar

 

He is cutting hemlock(Tsuga heterophylla) in that vid - it is about as dense as noble fir at best. He is also using low pro chain on a narrow kerf bar. And judging by the size of the chips, the chain appears to have been massaged.

Here's a 357 slicing thru it like butter. I've fallen hundreds of them myself, and bucked even more.

Here's one a bit more mature.

Surley more power means more fuel, auto tune only has one jet into both high and low and will only allow so much fuel in, it also has a govenor, i am not so sure porting is going to increase power just alter the power curve, still i would like to hear your findings.

There is no governor in AT or MTronic saws. Technically, no rev limiter either. The electronics control the solenoids. See Eddy's post.

As for power, if there was none to gain, why would we bother?

The last 261CM I ported was 42% faster with the bar buried in wood.

The last 241CM I did was 30% faster.

Hell, even just modding the muffler on the 261, you get huge gains.

I work with huge trees all day long, processing for furniture or firewood, on a large estate. Ain't got no time for hauling around a 660 or 880. My back is old, but my arms are young, too. This ported 044 is a god send:

I've always thought you boffins had made up the "Venturi effect" as an in joke to confuse is regular thickos.

 

That analogy explained it in perfect laymans term, cheers!

That's why you want to piss in to a crosswind. Just not TOO much of a crosswind.

Eddy, i think i must have missed somthing here, are you saying you are going to port a 560XP? if so how are you goin to get more fuel into it as this is controlled by the auto tune unit.

The EL46 carbs can be reset. The owners manual explains it.

They will deliver plenty of mixture to a ported 560/562.

My problem was actually getting too much mix at idle in the WTF series used on the 241 MTronic. Though this saw seems to have had that issue long before it was ported.

Yes i saw the 576 other than a lot of noise it was gutless, nice chrome pipe though, i always thought of porting as a black art, some good some bad, when ported the power band is changed so the full load cutting speed is surly going to be faster, and as chain speed is taken into account when choseing the class of trouser to wear this must become an issue, as for vibration pretty sure this will have increased, all sounds a little anal but it will only take one accident and the s t will hit the fan,how much faster can the operator honestly work with all this extra power? or is it just a matcho thing?

Porting has been around since two stroke engines have been around. If you don't get it, consider yourself lucky. You just saved yourself some duckets.

Hell, we haven't even mentioned nitrous yet...

It is bad enough bring blamed for my own mistakes let alone yours Wes:sneaky2:

At least you didn't do a hard sell on testing this thing with 'Stihl Diagnoostics Computahz" for 50 euro. I don't need to spend 50 euro for them to tell me I need a new carburetor...for only another 199 euro plus 70 installation, and another 50 to test it.

Do you have a video of the 241 yet

Well, yes and no. I have a vid, but the bar is so worn, and the metering is off on the carb, it really doesn't do it justice. I just ordered some mtronic carb parts(and am told I am the first person to ever do so - including the stihl dealer themselves). So we'll see how it goes. Spud has been helping me out with the metering as well. Wish us luck. If it fails, we can at least find a way to blame him.

The vid:

https://www.youtube.com/watch?v=OLigDD-Jpfw

Oh, but this American thinks there IS a substitute for cubes.

It takes my ported 044 to beat that monster in that wood:

https://www.youtube.com/watch?v=K-uMkEhRNAE

The bars are still around. That's a Windsor bar with the Carlton name.

I guess it depends who has the best earth though.

 

e.g if the guy holding the lead was barefoot (unlikely, I know) whilst the other had his doc martens??

And you would be holding hands, wouldn't you? Not much more gay than being barefoot and hanging out with yer bud in his emo boots.

Also makes sense you would be self-harming as well.

I had a Windsor bar last me a few years. The tip as well.

The 261 was the last one. This is a 241 ported. Will have vid tomorrow.

Got the MS241 done.

Also, in this cold weather, you may want to cut it with some rapeseed to thin it.

Not sure anyone can make a valid comment/criticism without first hand experience and you certainly can't just cause you read some numbers on a piece of paper!

Niko can honestly say that he has never, ever, in his life ran an Echo chainsaw.

That's amazing!!!

 

 

I don't get it. It's a saw being revved. I could stand in my garden and make similar noises...

Timing advanced, exhaust modified, and cylinder ported. Your saw has nothing on that Echo, son.

Some mod rather well.

The service tool list is better for parts, but I'll be buggered if I know how to set up a husky account!? I suppose it's a dealer only system? The mark-up at my local is extortionate on service tools!

At least they will sell them to you. I wanted two drivers from my local guy. What does he tell me? "I won't sell you the tools. I'll retune the carbs for you for 20 Euro". I told him that's exactly why I want to buy the tools - the reason I want those drivers is so I don't have to pay 1,000 Euro/HR for saw work!

I need a few parts, but I am gonna wait for a bit before I go back. He didn't look too happy when I said that. But wtf was I supposed to say?

After using a 261 CM with a muff mod. I'm not sure I'd bother with a 362 unless it was heavily ported.

Fair enough, will keep my 545 for a bit longer then! How's things going in Ireland?

I can't complain, Bud. Things are going smoothly...mostly. Good to see you're doing well, too!