husky v stihl on raw power only!

[matthawh1966]

I've been a stihl fan for over 20 years. But bought a 540 a few months ago and on raw power the 540 has it. I also have a201 but now prefer the 540t

[luftwaffe]

How much more power in % terms does porting give a saw? Is there any difference in fuel consuption as a result.

[spudulike]

How much more power in % terms does porting give a saw? Is there any difference in fuel consuption as a result.

 

I don't normally get a chance to get too much time testing on what I do but recently I ported a 372XP which was already wearing a jungle muffler - that is an empty can, a bit like a big 346XP muffler with an enlarged outlet hole.

 

The owner was good enough to test the saw pre porting and then we tested it afterwards. The 372 is one of the best saws to port and on the first cuts with it tached to near maximum standard rpms, we got an average improvement of 20% but noted the saw loading up toward the end of the cut. We leaned the saw to 14,000rpm max (500 rpm above standard) and got a further 10% improvement so a total of 30% improvement in cut speed JUST from porting ONLY. The muffler AND porting would give much more.

 

Difference in fuel consumption - you will have to ask the guys that run these saws regularly!

[Pinkfoot]

I suspect the tank is bound to empty faster ,but the work rate is so high that it likely will cost no more in fuel.

[R Haigh]

I've not had a 362 but I had the 361 that some say are better and it was left for dead cutting side by side with the 560xpg both were running 20" bars with brand new Oregon chains

[Tom D]

The ported saws are definitely thirstier, but who cares..... You don't buy a Ferrari for its mpg.