Why is porting necessary?

I do think it blew over him, he should have spotted that smoothe cant dog ................

 

I would say 2 factors, the biggest by far being emissions, the epa, and 2nd, most saws I believe go to homeowners and people that don't use there saws everyday. Why stick the extra money and engineering into a small saw when the average guy that buys a saw to clear 3 trees isn't going to appreciate?
I do however believe they should make the pro model saws to run maximum power and maximum life and forget the epa, it's rather ridiculous when it comes to 2 strokes anyways, for every gallon of fuel a professional logger runs though his saws I'm sure close to 100 gallons are run through all of there equipment to finish the job that 1 gallon does, (skidders feller bunchers pulp trucks trucks to get to the woods etc etc) so it seems pointless to try to worry about that piddly gallons with of pollution.
Correct?

 

It seems that way to me.

Greg

 

yup, I is knot as intlijengt as you gies

 

That's less witty than your previous post. Good one.

 

congratulations, you have the honor of being the first person I have ever added to the ignore list

 

Well, I'm sure your not the first.

 

The guys that are just timber fallers are the ones that benefit the most from ported saws. They can get more wood on the landing in their 6 hour day and more money in their pockets.

 

A. The problem with making a model that ignores the EPA is that you get fines or other sanctions, possibly including jail time, so unless the EPA blesses their decision, I think most engineers at Stihl and Husqvarna would rather stay out of the bad graces of the EPA

B. Not necessarily. I'm more familiar with four strokes (which are inherently cleaner than two strokes) than two strokes, but this isn't correct for most pollutants. While CO2 emissions are relatively constant per gallon of gas burned, most other pollutants are very susceptible to different sorts of engine tuning and post combustion emissions control, so that the difference in some pollutants is indeed on the order of 1:100 or more. If you drive behind a pre-emissions car and then behind a modern car, you can easily smell the difference.

 

So why do you think that the factories dont " porting " the saws ?

 

Hey, what's up with the "no spike dog" on there?? Never seen that before?

 

With a proper chain I see no need for a dog. That one only protects the case from being scratched and falling over, it is a shelf queen. I made that from SS . I have spikes on my 064 and 056 magII cause they are for longer bars.

 

Hey, no fair, that was the gist of my question! But, I am guessing those who say EPA regulations are probably right.

Greg

 

Pretty much what I'm saying, make the non or lesser epa saws available for these guys, the ones who truly benefit and appreciate it.

 

Ooops, messed up the quotes

 

With out a doubt the primary reason for manufacturers to build their saws the way they do is because of EPA regulations.
Here is an example. I was on the Walbro site studying the WYL series carbs and was looking for a tool to adjust them. Walbro flat out states they no longer sell the adjustment tool because of regulations from the EPA.
If you have a business that repairs 2 cycle engines the EPA does not want you taking the limiters off and adjusting the carbs. That is a fact.
So manufacturers have it tough right now on how to get decent performance and meet the regulations that the EPA had crammed down their throats. Have you ever taken a strato saw apart. It has to be more expensive to produce and it looks to me that better performance is harder to obtain.

 

Why did't you just say the subject was dead.

I know learning something new can be difficult.

 

I know learning something new can be difficult.[/QUOTE]

I spent 3 hours yesterday talking with a Wildfire response team, Gold seal certified Stihl mechanic and retired USMC Gunny sergeant. This subject came up and the first thing he said was EPA, he said the saw owner can do whatever they want to their saw once he sells it.------- The EPA sets the bar for all saw company's.