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yeah i could see that. i was asking a new question. basically do some saws respond to porting better than others. from what i gather 660's just pull bigger bars better but arent any faster with smaller bars. so make more torque than power.

Year certain saws respond to porting better than others. Funnily enough you hear the old small saws are just as quick in small wood as bigger saws argument a lot. There may be something in that with ultra small wood when limbing but my stock 3120 comprehensively kicks my ported 7900 and 390XP's arse in anything over 10". You just lean on it harder and torque equals speed. For example I can lean on my 3120 harder, use a larger sprocket, and run a far more aggressive chain.
Power is torque basically. It just depends how you choose to use that torque.
As far as efficiency and handling goes it stays in the shed :)
A lot of people do speed comparisons by sitting saws on a log and letting the saw do the cutting. If small saws could keep up with big saws we wouldn't see capacity classes in chainsaw racing.
I also mean saws of a similar design, not a 461 against an 070 for example :)
 
was havin a chat with the old man over the weekend and his asked why do gum trees love dropping perfectly good looking limbs? and especially when theres no wind to be had.
 
was havin a chat with the old man over the weekend and his asked why do gum trees love dropping perfectly good looking limbs? and especially when theres no wind to be had.

Sap expansion from both heat and sudden rainfall but mainly heat. River Redgums have limbs falling like rain on 40+ ° days. Common knowledge here that you do not park, sit, or tie your boat up under Redgums in Summer.
 
Sap expansion from both heat and sudden rainfall but mainly heat. River Redgums have limbs falling like rain on 40+ ° days. Common knowledge here that you do not park, sit, or tie your boat up under Redgums in Summer.
yeah i never set up camp undr trees, but wondered why. so like exploding off.
 
yeah i could see that. i was asking a new question. basically do some saws respond to porting better than others. from what i gather 660's just pull bigger bars better but arent any faster with smaller bars. so make more torque than power.

Dont get me wrong i like a 660 but only when you need a 36'' bar in some dry hard gum were its at its best,other smaller ported saws do a better and aesyer job most of the time.
 
Dont get me wrong i like a 660 but only when you need a 36'' bar in some dry hard gum were its at its best,other smaller ported saws do a better and aesyer job most of the time.
You got me convinced bro, I'm going to order a MS 441 R C-M soon as my wife allows me to;).

How busy is your guy that ports saws? I am sure keen to give him some work if he has the time.

Reading your ramblings in the other thread a ported 441 will do everything I will need it to do, and when I get onto the larger stuff I stihl have the MS880 and the MS660's
 
Best way to port a saw is ship the cylinder to someone like Randy (Mastermind) and have him shave the deck and mill the squish band. Then have him grind the ports to restore the mechanical timing, and widen the intake and exhaust port. You can do the rest yourself and save on the other porting and shipping costs. Most of the guys here that 'port' saws do that. With the newer x-torq and strato charged engines, doing muffler mods is not really required (and they do not get the gains from a MM that pre-EPA saws do). You can do a MM if you want though and advance the ignition timing yourself, as well as tear it down and put it back together.
 
You got me convinced bro, I'm going to order a MS 441 R C-M soon as my wife allows me to;).

How busy is your guy that ports saws? I am sure keen to give him some work if he has the time.

Reading your ramblings in the other thread a ported 441 will do everything I will need it to do, and when I get onto the larger stuff I stihl have the MS880 and the MS660's

Don't let Andrew fool you. The 441C isn't the only 70cc saw that can do a good day's work :) Even though Stihl should pay him a commission for how many he's sold.
 
Best way to port a saw is ship the cylinder to someone like Randy (Mastermind) and have him shave the deck and mill the squish band. Then have him grind the ports to restore the mechanical timing, and widen the intake and exhaust port. You can do the rest yourself and save on the other porting and shipping costs. Most of the guys here that 'port' saws do that. With the newer x-torq and strato charged engines, doing muffler mods is not really required (and they do not get the gains from a MM that pre-EPA saws do). You can do a MM if you want though and advance the ignition timing yourself, as well as tear it down and put it back together.

Although that cuts the mustard in a pinch and is better than stock if you talk to any builder they really need the whole saw to do a decent job. Many builders won't even think of doing the cylinder alone and actually refuse to do it like that.
 
Yeah pretty well mate. They go off like a gunshot. Saw a 2 foot thick Redgum branch let go when fishing a few months ago.
Was that the same day you and your phone went for a swim? :D .......sorry mate,but it was funny ok.Ill go back to my hole now :eek:
 
Sap expansion from both heat and sudden rainfall but mainly heat. River Redgums have limbs falling like rain on 40+ ° days. Common knowledge here that you do not park, sit, or tie your boat up under Redgums in Summer.

Thats sound advice !......I've lived on and fished the Goulburn river all my life and know of campers being killed by Manna gum doing the same thing, especially with a change in barometric pressure just before a summer storm.
 

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