logging22
Cuttin to live, livin to cut
Dont let em mess with you brother. It looks good, sounds good. Love it. 
My 288xp/660 piston swap build...
- Thread starter TRI955
- Start date
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Anthony_Va.
XPW Fan Club
Looks pretty mean to me also. Sounds like it tuned good too.
She sounds pretty darn good to me.
Nice job.
Lee
Nice job.
Lee
TRI955
I'm the man in the box
This is the latest compression reading on the saw...
Should I swap out the base gasket for a thicker one? I just run preimum pump gas with Stihl ultra. I really have no time on the saw yet, too damn hot and humid around here right now, it will not see much action till fall.
Should I swap out the base gasket for a thicker one? I just run preimum pump gas with Stihl ultra. I really have no time on the saw yet, too damn hot and humid around here right now, it will not see much action till fall.
mweba
Addicted to ArboristSite
This is the latest compression reading on the saw...
Should I swap out the base gasket for a thicker one? I just run preimum pump gas with Stihl ultra. I really have no time on the saw yet, too damn hot and humid around here right now, it will not see much action till fall.
WOW I think you should be ok but check the top of the piston from time to time for preignition.
logging22
Cuttin to live, livin to cut
This is the latest compression reading on the saw...
Should I swap out the base gasket for a thicker one? I just run preimum pump gas with Stihl ultra. I really have no time on the saw yet, too damn hot and humid around here right now, it will not see much action till fall.
I would wait till it hits 250. Just to be safe.
pops21
Addicted to ArboristSite
I would run the highest octane you can find. Which is probably 94. You should be ok. How many pulls is that. Also did you pull the cord till it wouldn't go any further?
I'm not sure if your 288 is the same but my stihl 041 pulls 203psi. It cranks first pull with choke off every time. If you put the choke on it will flood the saw first pull.:greenchainsaw: I also figured it would be hard to pull with that high of compression. Well its no worse then my 5100s that has 200psi stock.
I'm not sure if your 288 is the same but my stihl 041 pulls 203psi. It cranks first pull with choke off every time. If you put the choke on it will flood the saw first pull.:greenchainsaw: I also figured it would be hard to pull with that high of compression. Well its no worse then my 5100s that has 200psi stock.
TRI955
I'm the man in the box
I pull till the needle quits climbing.
pops21
Addicted to ArboristSite
Does it have to be choked to start?
TRI955
I'm the man in the box
Only when cold...why?
pops21
Addicted to ArboristSite
Cause my 041 cold/hot it don't matter starts with no choke 1st or second pull. It has 203psi compression. I figured since its got more compression its pumping more fuel. I didn't know if this was a trait for modded higher compression saws. If I pull the choke it floods the motor.
TRI955
I'm the man in the box
That sounds odd to me, sounds more like a carb issue/jetted too rich. I'm not too familiar with an 041....
parrisw
Tree Freak
compression ratio has nothing to do with pumping more fuel.
pops21
Addicted to ArboristSite
Now that I think about it all the compression goes out the exhaust. So your right. :greenchainsaw:
husq2100
Addicted to ArboristSite
I guess shooting for over 200psi is the cool thing to do at the moment.....
TRI955
I'm the man in the box
I guess shooting for over 200psi is the cool thing to do at the moment.....
Wasn't really "shooting for over 200psi", that's just where it ended up at. I'm not too sure I want it that high either, but thanks for your positive input.
TRI955
I'm the man in the box
Got my new 33" Oregon RW bar for the old girl....I'm happy now!
I think in the future I'm gonna put a degree wheel on it and see what I can do there....
I think in the future I'm gonna put a degree wheel on it and see what I can do there....
Last edited:
husq2100
Addicted to ArboristSite
Wasn't really "shooting for over 200psi", that's just where it ended up at. I'm not too sure I want it that high either, but thanks for your positive input.
as far as positive imput, i added that pages ago but it fell on deaf ears.....its not a dig at you but it seems alot of guys are building pop ups and or shooting for high compression and not alot more...the motor as a whole has to work in balance....intake/transfers/compression/exhaust etc etc .....but some are just going for what seems cool....if the search function is used there is 1000's of posts with good saw mod info here....
but atleast your having fun wth saws
pops21
Addicted to ArboristSite
TRI955 your 288 looks amazing. I am waiting on my 288 to come in the mail that I got off ebay. Gonna do a complete rebuild and add a HD filter and high top. It's my first big wood saw.
Im the case of my 041 rebuild I wasn't really shooting for over 200psi either. What I was shooting for was to be on the lower side of .021" of the squish band. Stock squish was .033 and its now at .019. As for your high compression, just run the highest octane gas you can and you should be fine. Which is 94 here, or 110 sunoco race gas around here. The 110 is $8.98 a gallon.
. I am waiting on my 288 to come in the mail that I got off ebay. Gonna do a complete rebuild and add a HD filter and high top. It's my first big wood saw. Im the case of my 041 rebuild I wasn't really shooting for over 200psi either. What I was shooting for was to be on the lower side of .021" of the squish band. Stock squish was .033 and its now at .019. As for your high compression, just run the highest octane gas you can and you should be fine. Which is 94 here, or 110 sunoco race gas around here. The 110 is $8.98 a gallon.
