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Author Topic: Woods porting  (Read 9610 times)

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Offline lumberjack48

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Re: Woods porting
« Reply #20 on: May 27, 2012, 07:43:14 PM »
You got it Al, the throttle response was unbelievable. Have you ever had one, or worked on one ? 
Third generation logger, owner operator, 30 yrs felling experience with pole skidder. I got my neck broke back in 89, left me a quad. The wife kept the job going up to 96.

Offline Al_Smith

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Re: Woods porting
« Reply #21 on: May 27, 2012, 09:09:22 PM »
---or even seen or heard of one ,no .

Offline SwampDonkey

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Re: Woods porting
« Reply #22 on: May 28, 2012, 04:35:00 AM »
I do that by times with a brush saw to get it down. Remember, we aren't creating 1/4 acre sized holes when thinning and aspen is about the worst tree to hang up as is beech.
Move'n on.

Offline Full Chisel

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Re: Woods porting
« Reply #23 on: June 15, 2012, 10:03:18 AM »
I first got my MS362 the March before last. Upon goin' in the woods, I thought I'd been had. I thought it was lockin' in the cuts and running out of power way too easy. Thru several tankfuls of fuel, she continued to wake up. It got to whistling like it should. I've heard many accounts of this. Break the saw in thoroughly, then ask yourself again if you want to drill out the muffler or have it ported. In a 60cc saw I don't see how you'll need more than what a stock 362 puts out.

I'm in with the sharp chain crowd with depth gauge clearance tuned to powerhead/bar length.
Jed: Jethro, how's come they ain't no ice in Kali Forni-a?

Jethro: Don't look at me Uncle Jed. I didn't take it.

Online beenthere

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Re: Woods porting
« Reply #24 on: June 15, 2012, 10:08:44 AM »
Full Chisel
Welcome to the forum.
I agree with your experience, and had similar questions running through my mind with my new MS361 ('04). After a few tanks, it gained speed in the cut as well as I gained the experience with the saw. Very happy with the product and performance since. Good on the sharp chain and tuned rakers.

Welcome aboard.
south central Wisconsin
 It may be that my sole purpose in life is simply to serve as a warning to others

Offline lumberjack48

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Re: Woods porting
« Reply #25 on: June 15, 2012, 03:23:25 PM »
This is the reason i didn't like buying a new saw, i didn't have time to break it in. I used to always try an buy their demo saw, it was broke in an all the bugs were out of it, if it had any.

Hi, Full Chisel, I'm glad you've learned the trick to the chain saw, sharp and keep it sharp. Then you both get along fine.
Third generation logger, owner operator, 30 yrs felling experience with pole skidder. I got my neck broke back in 89, left me a quad. The wife kept the job going up to 96.

Offline Full Chisel

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Re: Woods porting
« Reply #26 on: June 15, 2012, 06:52:52 PM »
Thanks, guys.

Timbercruiser mentioned being new to all this. If he meant forums, he may have a background in saws.

But in case, it don't bother me any if a guy that knows he's serious goes and drops $700 US on a new Stihl. We don't want a guy to get carried away by hype on modding equipment. Those Stihl and Husky engineers are some of the best in any industry. They are plugging in what your saw needs. If there is some headroom available by honing up the castings and puttin' on some aftermarket stuff, I'd say run the saw five years then look at turning it into a racer.

With a 20" guide bar and .375 chain, that 362 will go thru anything and good on gas. For a 25" bar, that's askin' too much of a 59.5 cc saw and it's oiling capability. Take that modification money and get a roll of chain. Also, in any chainsaw, run the best gas you can find.
Jed: Jethro, how's come they ain't no ice in Kali Forni-a?

Jethro: Don't look at me Uncle Jed. I didn't take it.

Offline Al_Smith

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Re: Woods porting
« Reply #27 on: June 15, 2012, 08:34:42 PM »
Most people are tickled to death with just the performance of a broken in saw .Others with just some work on the muffler .

A few of us are gear heads and just like to tinker and putz around and thus hot rod saws .That doesn't mean everyone has to or pay somebody 250 to 400 bucks to make you a hot rod you don't need .

I mean souped up saws are a hoot to run but do you really need it ,the big question ????

Offline Clam77

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Re: Woods porting
« Reply #28 on: June 15, 2012, 09:40:53 PM »
My 362 would handle a 25" bar easy enough with plenty of oil to keep it from burning up... if I had one to put on it.  It handles a 20" with ease now that it's had over a dozen tanks of fuel ran through it.

A 60cc saw (without all the EPA regs) SHOULD be able to handle a 28" bar with moderate use - and mine does quite well - but it lacks on oil with it and I'd prefer not to burn the bar up.  Stihl RECOMMENDS a 20" bar, most likely because that's the biggest bar they make with the "anti-kickback" feature, but I'm assuming they also did it to keep people that know absolutely nothing about chainsaws from burning them up as they also claim a 50cc saw with a full HP less will handle a 20" bar.

Would it be nice if it had a little more power for that 28" bar.....  of course.   Do I need a hotrod saw... not really.   Can I get a bigger saw if I need to cut something bigger... there's always someone that has one.
Andy

Stihl 009, 028, 038, 041, MS362
Mac 1-40, 3-25

Online beenthere

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Re: Woods porting
« Reply #29 on: June 15, 2012, 09:49:12 PM »
...................Stihl RECOMMENDS a 20" bar, most likely because that's the biggest bar they make with the "anti-kickback" feature, .........

Clam
What is different about a bar that has the "anti-kickback" feature?? Just curious.
south central Wisconsin
 It may be that my sole purpose in life is simply to serve as a warning to others

Offline Clam77

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Re: Woods porting
« Reply #30 on: June 15, 2012, 10:53:05 PM »
...................Stihl RECOMMENDS a 20" bar, most likely because that's the biggest bar they make with the "anti-kickback" feature, .........

Clam
What is different about a bar that has the "anti-kickback" feature?? Just curious.

I'm not completely sure myself beenthere....   :-\

Stihl uses the green/yellow coloring scheme on their bars as well as their chain.. I can only assume there's something in the nose that helps it out somehow- maybe a dampened nose sprocket??   :-\

Once you get above 20" though they sell the "yellow" painted bars - not sure if they make a "yellow" 20" or not.  I'll have to check around here and see.
Andy

Stihl 009, 028, 038, 041, MS362
Mac 1-40, 3-25

Offline Al_Smith

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Re: Woods porting
« Reply #31 on: June 15, 2012, 10:58:35 PM »
There's so called anti kick back chain but I'm not aware of anti kick back bars .Stihl bars as a general rule are painted white although I have a gray one on one of my 200t's .

Offline barbender

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Re: Woods porting
« Reply #32 on: June 16, 2012, 01:38:19 AM »
I think the radius of the sprocket tip is smaller on the "low kick back" bars.
Too many irons in the fire

Offline Full Chisel

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Re: Woods porting
« Reply #33 on: June 16, 2012, 08:42:55 AM »
Green and yellow on the Stihl chain: Green means (go) and yellow means, GO!!!!! Have you ever seen the John Carpenter movie, "Starman'" where the alien guy is learnin' to drive from the Earth woman? OK, dangerous territory there for my third post.

The green chain has that extra hump along with the raker, maybe the balance helps the bar keep from kicking back. It makes sense to adapt tools to fit men, except when it makes the tools less efficient. At that point, it makes more sense to train men how to safely operate sharp tools. Technology is good when it's in the right hands.

Just like these saws. Mods aside the MS362 blows away the previous platform. As does the 261 over the 026. They are tighter, quieter, smoke less and use less gas. They do weigh more. Same with the 441. The old 044 Mag is a man-eater but if guys think the MS441 won't outrun it far enough to offset the increased weight, I'd like a closer look 'cause that didn't happen here.

On the bars, I've noticed the ones with marked yellow have replaceable sprocket nose and green designated ones don't have replaceable nose.

AT 50.2cc, MS261 will handle a 20" .325 guide bar all day. A 16" bar with 26 Rapid Super comfort and .030 rakers turns her into oak scissors.
Jed: Jethro, how's come they ain't no ice in Kali Forni-a?

Jethro: Don't look at me Uncle Jed. I didn't take it.

Offline Al_Smith

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Re: Woods porting
« Reply #34 on: June 16, 2012, 08:48:02 AM »
Oh this old "porting " thing gets so blowed out of proportion it becomes almost a laughing matter .

They choose up sides like an intermural basketball game and cheer on their great so called "builder "and make a big deal over a half a second cut time of three hits on an 8 by 8 .Big deal .

It ain't the rocket science they say it is .Not one person on the face of this earth was born with the ability to crank more power out an engine no matter if it's a 3,000 HP double A fuel dragster or SwampDonkeys brush saw .

They all had to learn at some time or another .There's just tons of info on the internet .Get a cheap saw with a removable cylinder and have at it .You'll never learn a blessed thing unless you do it . ;)

Offline Full Chisel

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Re: Woods porting
« Reply #35 on: June 16, 2012, 09:02:02 AM »
It ain't the rocket science they say it is .Not one person on the face of this earth was born with the ability to crank more power out an engine no matter if it's a 3,000 HP double A fuel dragster or SwampDonkeys brush saw .

Are you saying that "Squish'" isn't relevant in thermodynamics?
Jed: Jethro, how's come they ain't no ice in Kali Forni-a?

Jethro: Don't look at me Uncle Jed. I didn't take it.

Offline Al_Smith

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Re: Woods porting
« Reply #36 on: June 16, 2012, 10:52:44 AM »
What's that got to do wth the price of tea in China ? We're not talking about an alkie /nitro race saw on a tuned pipe are we ? ;)

Offline Full Chisel

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Re: Woods porting
« Reply #37 on: June 16, 2012, 11:14:37 AM »
We're not talking about an alkie /nitro race saw on a tuned pipe are we ?

No.
Jed: Jethro, how's come they ain't no ice in Kali Forni-a?

Jethro: Don't look at me Uncle Jed. I didn't take it.

Offline Al_Smith

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Re: Woods porting
« Reply #38 on: June 16, 2012, 05:30:52 PM »
Well okay then it's terminoligy then ."squish " is painting with a broad brush so to speak .It could be the piston head deck  clearance at top dead center or it could be the shape of the combustion chamber .

If it was used as reference and alluding to the fact of raising the compression ratio  then yes .That's pretty much standard practice .

However conversely if it's changing the shape or size of the combustion chamber perhaps with a removable head then it's race engine stuff .

"Squish "is often used like terms of "porting a muffler " now just how in the world do you port a muffler ?Rework one perhaps but port has nothing to do with it . ;)

Offline JohnG28

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Re: Woods porting
« Reply #39 on: June 16, 2012, 07:26:38 PM »
...................Stihl RECOMMENDS a 20" bar, most likely because that's the biggest bar they make with the "anti-kickback" feature, .........

Clam
What is different about a bar that has the "anti-kickback" feature?? Just curious.

I'm not completely sure myself beenthere....   :-\

Stihl uses the green/yellow coloring scheme on their bars as well as their chain.. I can only assume there's something in the nose that helps it out somehow- maybe a dampened nose sprocket??   :-\

Once you get above 20" though they sell the "yellow" painted bars - not sure if they make a "yellow" 20" or not.  I'll have to check around here and see.

The difference between Stihl bars is that the green labeled ones are laminated, while the yellow labeled ones are solid steel with the replaceable tip.  Not sure why they label them this way.  The yellow label bars are available down to 16" or 18" though.
Stihl MS361, 460 & 200T, Jonsered 490, Jonsereds 90, Husky 350 & 142, Homelite XL and Super XL


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