Preparing to port first saw - which one, and what method?

[Sloughfoot]

Stock they were about 103 I believe on the exhaust and only 10–11° of blow down. They would cut very fast at a narrow RPM range but didn’t like to be lugged down at all or they would fall off the pipe

I wouldn't have ever thought a saw could run at all with that amount of blowdown.

 

[jacktheripper]

I went out today and dropped three trees in the mountains with the newly ported 272xp. One of them was a 24”+ standing dead rock solid pine. Blocked everything up into 14” lengths. Amounted to roughly a little less than a cord.

By the final tree, I could tell that the saw was waking up a decent amount. That was midway through the second tank…

So I got home and checked compression and squish again. Saw only blew 155psi, and that is with a measured .018 squish. The ring in it is an almost brand new caber, installed on the saw only about three tanks ago.

I think this ring needs to break in still. This might be one of those saws that takes like 10+ tanks to wake up.