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- Thread starter parrisw
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parrisw
Tree Freak
LOL, sorry about that.
parrisw
Tree Freak
Got a bunch of porting done tonight. Int and EX is mostly done, just need to smooth out now.
Pay no attention to the uppers their not done yet.
Pay no attention to the uppers their not done yet.
NORMZILLA44
Addicted to ArboristSite
Nice work Will
Mastermind
Work Saw Specialist
Nice clean work Will. 
Looking good Will.
parrisw
Tree Freak
Thanks guys. Trying to do a nice job on this one.
SawGarage
Addicted to ArboristSite
Quality work, Will...
parrisw
Tree Freak
Quality work, Will...
Thanks Jay, will post up some more pics when its all done, still got to make stuff a little smoother.
SawGarage
Addicted to ArboristSite
and there-in lies the part that takes the longest, and the most tedious... trying to get things blended nice, yet not take out 'more' material.
I'm excited to see where it ends up.... I have a saw i'd like to do someday
parrisw
Tree Freak
and there-in lies the part that takes the longest, and the most tedious... trying to get things blended nice, yet not take out 'more' material.
I'm excited to see where it ends up.... I have a saw i'd like to do someday
Ya it does. Honestly most of the saws I do I leave it like I have it here, just want to go the extra mile on this one.
Dennis Cahoon
Addicted to ArboristSite
Got a bunch of porting done tonight.
Looks like you've over ran your marks to me!......Hahahahahaha!
Mastermind
Work Saw Specialist
I've been trying a lower intake duration than I've used in the past Will. I'm in no way saying that this is the way to go or even that it helps at this point, but my thinking is along these lines....
We talk a lot about intake opening point, but what about the relationship between intake closing and transfer opening? We think about the blowdown time, but never do we mention the amount of time that crankcase pressure is building between intake closing and transfer opening.
I'm seeing a pattern based on the size of the crankcase and this number. As we all have found, some saws "like" more blowdown....some "like" less. I'm thinking that this is because of crankcase volume vs displacement.
The lower the intake and the higher the transfers the less time the pressure builds in the crankcase, so by leaving the intake as is and just raising the transfers.........????
Keep in mind that all this is just me thinking out loud, but I wouldn't lower that intake until I saw how well it pulled a long bar. Sure a high revving saw is a hoot to run, but a saw that has a butt load of torque is a fine thing.
Sorry for the long winded derail.....carry on.
SawGarage
Addicted to ArboristSite
Randy,
this is always a thought in my mind... what makes the most sense for disp vs. CC volume... I know there are programs out there that help with sizing the crankcase (when modifying it makes sense...) and what changes can be incorporated together...
I wonder how most measure the CC volume... fill the CC with a metered amount of oil?
more reading is required, I guess..
this is always a thought in my mind... what makes the most sense for disp vs. CC volume... I know there are programs out there that help with sizing the crankcase (when modifying it makes sense...) and what changes can be incorporated together...
I wonder how most measure the CC volume... fill the CC with a metered amount of oil?
more reading is required, I guess..
Mastermind
Work Saw Specialist
Randy,
this is always a thought in my mind... what makes the most sense for disp vs. CC volume... I know there are programs out there that help with sizing the crankcase (when modifying it makes sense...) and what changes can be incorporated together...
I wonder how most measure the CC volume... fill the CC with a metered amount of oil?
more reading is required, I guess..
All I know for sure is this. The more I learn......the more I need to know. :msp_sad:
parrisw
Tree Freak
Good thing I always mark conservatively, so I decided to go a little further. Don't worry Dennis I measured.
Oh you are very observant! Hahahahahahahahahahahahaha
parrisw
Tree Freak
I've been trying a lower intake duration than I've used in the past Will. I'm in no way saying that this is the way to go or even that it helps at this point, but my thinking is along these lines....
We talk a lot about intake opening point, but what about the relationship between intake closing and transfer opening? We think about the blowdown time, but never do we mention the amount of time that crankcase pressure is building between intake closing and transfer opening.
I'm seeing a pattern based on the size of the crankcase and this number. As we all have found, some saws "like" more blowdown....some "like" less. I'm thinking that this is because of crankcase volume vs displacement.
The lower the intake and the higher the transfers the less time the pressure builds in the crankcase, so by leaving the intake as is and just raising the transfers.........????
Keep in mind that all this is just me thinking out loud, but I wouldn't lower that intake until I saw how well it pulled a long bar. Sure a high revving saw is a hoot to run, but a saw that has a butt load of torque is a fine thing.
Sorry for the long winded derail.....carry on.
I'm getting what you're puttin down randy. Makes sense.
Dennis Cahoon
Addicted to ArboristSite
That's right Willie, I figured you left some tolerance......besides, we'd have to listen to a big crying if you ever traveled to Freeport City!......Hahahahahahaha!
