Working the 460 (How hard can it be modded)

[KindlingKing]

No mods necessary. Keep it as-is and get the 660 with a dual port. You know it is in your future. Might as well get it over with right now.

 

[stihl 440]

ha

Keep dreaming!

I knew you where going to say something, jeff. You can't let warroir dream like that. I was going to say,"i want to know what jeff says about this" last night, but I was too tired. Jeff, what size bar does your 660 wear? When I get my 660 it is going to wear a 24. :hmm3grin2orange:

 

[GASoline71]

I knew you where going to say something, jeff. You can't let warroir dream like that. I was going to say,"i want to know what jeff says about this" last night, but I was too tired. Jeff, what size bar does your 660 wear? When I get my 660 it is going to wear a 24. :hmm3grin2orange:

It prolly has a 36"er on it. Jeff lives in the land of BIG trees.

Gary

 

[ShoerFast]

Man thats a harsh set of numbers.

Does anyone else here have hands on effect with as severe altitude changes?

Maybe Ill keep my 32" bar and get my saws Stage II'd...

Warrior

Were abouts are you?

Air is everything to running Bamdimire, lots of racers don't like it here, cause they can't get the power, but even more do like it cause they can!

Here is a cool link to a tuners calc.

http://wahiduddin.net/calc/calc_hp_dp.htm

 

[Gologit]

Man thats a harsh set of numbers.

Does anyone else here have hands on effect with as severe altitude changes?

Maybe Ill keep my 32" bar and get my saws Stage II'd...

Yeah...it's called Density Altitude. On a hot day at 6000 ft msl your saw will be cutting like it's at a much higher elevation. I don't have any DA charts handy but it's amazing what temp and elevation will do to performance.

 

[stihl 440]

36

It prolly has a 36"er on it. Jeff lives in the land of BIG trees.

Gary

I was thaught he had a 36 on it, but in one of his pics, It looked like he had a 24 on it.:hmm3grin2orange: :greenchainsaw: :biggrinbounce2:

 

[ShoerFast]

Yeah...it's called Density Altitude. On a hot day at 6000 ft msl your saw will be cutting like it's at a much higher elevation. I don't have any DA charts handy but it's amazing what temp and elevation will do to performance.

Boboak

Were you really take a performance hit, is with airplanes, not only dose a naturally aspirated engine take a performance hit, the wings are less efficient in thinner air, the charts give you distances , go/no-go to clear a 50" obstacle.

Learning to fly in humid Minnesota was a math trick, till I moved to Colorado, soon found out the best 2 person airplane performance came from hot 4 person airplanes!

Here is a couple good description: http://www.pilotfriend.com/training/flight_training/aft_perf.htm

http://www.aopa.org/special/weather/0307jw.html

Charts like this are behind every left front seat of every airplane flying legally :

 

[Lakeside53]

That's the plane I flew all over The states... and when I needed performance, the Arrow 4 turbo.. Love those 10,000 ft Density altitude days....

 

[kevinj]

Since the 660 came home with me, the 460 has sat and collected dust. I mean literally, in my living room with dust on it. I did run it once, the week before I sold it....because it hadn't been run in over a year.

And I needed to buy another one of these, and when my fly reels cost me $650, the $$$ came in handy.

That looks like a mighty fine fly casting reel.
I've got a couple cheapO's, But are still O.K. with local bluegills.
That is, out of my ponds.

Glenn Blackwood, has a shop near by.
If your into flyfishing, you must know Glenn.

 

[RiverRat2]

Yeah Freakin Right!!!!!!!!

Maybe he will trade me straight across for his 460 back

Wake up Ich,,,,,, its a dream,,,, Hey can your Avatar come home with me????

 

[stihl 440]

Wake up Ich,,,,,, its a dream,,,, Hey can your Avatar come home with me????

I was wondering that also.... :jawdrop:

 

[West Texas]

Higher Elevations

I'm at 6000' and work at 7 to 8 sometimes. The effects of altitude are realized in fuel mixture and tuning of the saw.

First tuning; there is noticeably less oxygen at this elevation, so you start with the carb jets at the recommended settings and then make minor adjustments (1/8 turn? ) clockwise on the "L" jet, which makes it leaner, until it starts and idles well, and restarts when its hot. The "H" jet can be adjusted based on how it performs 'in the cut' at max throttle. Usually a slight four cycle sound out of the wood, smooths out to a beautiful cutting saw in the wood.

Next fuel ratio. I 'feel' like I get more torque and a better performing saw with 40:1 ratio. Another reason I like the 40:1 fuel ratio is to be sure its getting enough lube with the leaner carb settings you need at this elevation.

In any case, at this higher elevation, periodically check your plug "color." This will give you feedback on how you doing. On brand new saws I always start them out at 32:1 fuel ratio and they do just fine.

As Andy said, a good muffler mod really does make a difference, especially at this elevation. All my saws have muffler mods; and, two of them have 'top end' mods. The top end mod saws run at a higher rpm and are fun to play with, but for the average use of a saw its hard to justify the expense of getting a woods mod. I might be the only guy in Texas that has such a saw?

I find that chain and bar selection, and a really sharp chain is what pays off in day to day cutting in the woods. I carry several extra sharp chains with me to the woods and change them during my breaks. A good chain will outperform any saw that's running a bad one.




Bottom line is performance and proper lubrication for the life of the saw.

 

[ShoerFast]

That's the plane I flew all over The states... and when I needed performance, the Arrow 4 turbo.. Love those 10,000 ft Density altitude days....

Sure grounds a person with a firm understanding in the basics when you hang it in the line on a hot / humid day!

Turbo's are fantastic, turbines are the next step, yes, I buy Lotto tickets!

A company I worked for had some of the finest hard working STOL craft there are, the Dehavilid - 7 , you may know the Twin Otter, I call the -7 the Quad Walrus, Steamboat Springs Colorado, (SBS luggage tag) elevation 9000' 1100 foot affective runway, 54 passengers, and it would never miss a day of work, if everything was running!

The -7 carried about 30 gallons of water/meth and would spray that 30 gallons in that 1100' to give you that "GO" speed you need to clear MT Warner.

Aerospecialties or ATR (the company that makes the air-bus) built a prototype airplane for the SBS market, flew it from France to Steamboat to do there test one spring, got the thing stuck there till the weather got real cold, empty it could not fly back off the mountain!

You will see a few Arrow 4 Turbos in SBS!

 

[ShoerFast]

I'm at 6000' and work at 7 to 8 sometimes. The effects of altitude are realized in fuel mixture and tuning of the saw.

First tuning; there is noticeably less oxygen at this elevation, so you start with the carb jets at the recommended settings and then make minor adjustments (1/8 turn? ) clockwise on the "L" jet, which makes it leaner, until it starts and idles well, and restarts when its hot. The "H" jet can be adjusted based on how it performs 'in the cut' at max throttle. Usually a slight four cycle sound out of the wood, smooths out to a beautiful cutting saw in the wood.

Next fuel ratio. I 'feel' like I get more torque and a better performing saw with 40:1 ratio. Another reason I like the 40:1 fuel ratio is to be sure its getting enough lube with the leaner carb settings you need at this elevation.

In any case, at this higher elevation, periodically check your plug "color." This will give you feedback on how you doing. On brand new saws I always start them out at 32:1 fuel ratio and they do just fine.

As Andy said, a good muffler mod really does make a difference, especially at this elevation. All my saws have muffler mods; and, two of them have 'top end' mods. The top end mod saws run at a higher rpm and are fun to play with, but for the average use of a saw its hard to justify the expense of getting a woods mod. I might be the only guy in Texas that has such a saw?

I find that chain and bar selection, and a really sharp chain is what pays off in day to day cutting in the woods. I carry several extra sharp chains with me to the woods and change them during my breaks. A good chain will outperform any saw that's running a bad one.




Bottom line is performance and proper lubrication for the life of the saw.

Good post!

Yes, I have noticed that also, the best performance at altitude or real hot days, it seems is with just a slight tendency to 4-cycle/burble out of the cut or free speed WOT.

That burble seems to clear as soon as the chain sinks into a good cut, as the extra cylinder pressure effectively will burn the extra fuel more completely.

 

[IchWarriorMkII]

Wake up Ich,,,,,, its a dream,,,, Hey can your Avatar come home with me????

Heck no! I'm still dreamin and in my dreams she's at home waxing my 066

 

[Erick]

In my dreams shes at home waxing my 6

:love1:

 

[RiverRat2]

As Andy said, a good muffler mod really does make a difference, especially at this elevation. All my saws have muffler mods; and, two of them have 'top end' mods. The top end mod saws run at a higher rpm and are fun to play with, but for the average use of a saw its hard to justify the expense of getting a woods mod. I might be the only guy in Texas that has such a saw?



QUOTE]

Don't Think So Homie!!!!!

 

[stihl 440]

ha!

Heck no! I'm still dreamin and in my dreams she's at home waxing my 066

HEH HEH HEH.......... :hmm3grin2orange: