390xp

[Rudolf73]

Subscribing to a good build opcorn:

 

[parrisw]

You gonna port it Will, or leave it be? With those numbers, where would one port too? I guess if you done a popup and lowered the cylinder some, it would help it out all the way around?

Yes, will be ported. At a minimum you can widen the ports to max. I'll be lowering the cylinder, thinking of not doing a popup in this one, I haven't checked squish yet.

 

[TRI955]

I'll be watching too...

 

[mdavlee]

Squish is usually pretty tight around .025-.027" in the 3 I've checked. Compression really helps them come alive though.

 

[parrisw]

Squish is usually pretty tight around .025-.027" in the 3 I've checked. Compression really helps them come alive though.

Ok, if its that tight, I'll probably do a popup, I kinda want to start conservative, since I've heard these port quite a bit differently then 372's. Have gotten a couple tips from a couple good builders, don't want to say anything yet due to respect for them. If they are cool with me sharing then I will.

 

[parrisw]

Checked squish today. Was at .028", doesn't leave much room for lowering. So instead of doing a popup in this saw, I'm going to attempt to cut the squish band if needed, hope I don't screw up a new 390 top end.

Made a jig for holding the cylinder.

Now before anyone jumps all over me for copying others, well, I did, this isn't my idea got the idea from Eric and Dennis, couldn't see any other way to do it so why not use this method.

 

[NORMZILLA44]

Nice saw Will. I want a 390 have for a long time. Was that a lathe? Good work you do alot of metal work?

 

[parrisw]

Nice saw Will. I want a 390 have for a long time. Was that a lathe? Good work you do alot of metal work?

I've been lusting after a 390 for some time now, finally got my mitts on one.

Yes that's my metal lathe. Do a bit of metal work, mostly chainsaw related.

 

[jropo]

Cool!!! If you never ran one of these things before HANG ON!! They are a beast stock! I recomend PPE. :msp_thumbup:

 

[parrisw]

Cool!!! If you never ran one of these things before HANG ON!! They are a beast stock! I recomend PPE. :msp_thumbup:

Nope I haven't, can't wait.

 

[jropo]

I started giggling like a little girl when my dealer fired up my 385 to tune the carb.!!!:dribble: I should of known when we had to go outside, when my other saws were fired in the shop!:big_smile:

 

[NORMZILLA44]

I've been lusting after a 390 for some time now, finally got my mitts on one.

Yes that's my metal lathe. Do a bit of metal work, mostly chainsaw related.

Awesome Will, nice work, and that is a great skill, the metal work. Is the 390 headed to salt spring island soon?

 

[parrisw]

Awesome Will, nice work, and that is a great skill, the metal work. Is the 390 headed to salt spring island soon?

Thanks. If we go there it'll be coming.

 

[jropo]

BUT after running this thing for a year or so I'm wondering what a BB 395 would be like. I know a guy that has a 3120 and its just to friggn big.( I'm 5'8 190 he's 6'+) I would almost dread running some thing like that for a day! The 385 gets heavy at the end of the day, but its so much fun I don't mind. Any more weight would take some fun away. I would recomend a light weight bar if possible, my 36'' Carliton is very nose heavy!

 

[parrisw]

BUT after running this thing for a year or so I'm wondering what a BB 395 would be like. I know a guy that has a 3120 and its just to friggn big.( I'm 5'8 190 he's 6'+) I would almost dread running some thing like that for a day! The 385 gets heavy at the end of the day, but its so much fun I don't mind. Any more weight would take some fun away. I would recomend a light weight bar if possible, my 36'' Carliton is very nose heavy!

395's get real heavy after a while. I've had a few of them.

 

[NORMZILLA44]

I have never been a fan of 36in bar's all were nose heavy, and long for my stubby ass!

 

[parrisw]

I have never been a fan of 36in bar's all were nose heavy, and long for my stubby ass!

36" RW

 

[NORMZILLA44]

That would be the ticket Will. I have never run a reduce'd weight. I want to try one. I do have a 34 standard weight bar on the 2101. My short self has adapted too!

 

[jropo]

36" rw

oooooohhhhhhhhhhhh!!!!! Well if you have ran 395's this 390 might seem weak, I guess thats why your modding!

 

[parrisw]

That would be the ticket Will. I have never run a reduce'd weight. I want to try one. I do have a 34 standard weight bar on the 2101. My short self has adapted too!

Its nice, but they ain't cheap. Cost me a few dollars short of $200 for bar and chain.

oooooohhhhhhhhhhhh!!!!!

Ya I like! Sold that saw though, still have the bar, and down to 1 running 395 now, and one project.