390xp

[young]

Yep, allot of my saws started this way.

but is more fun this way hahaha

 

[parrisw]

but is more fun this way hahaha

Ya it is actually!

 

[young]

Ya it is actually!

my dealer thinks so too. those small parts add up quick.

 

[parrisw]

my dealer thinks so too. those small parts add up quick.

They do, last resort for me though!

 

[parrisw]

Making some progress. Still need a tank vent, other then that, I think that's all I need. Oh and a spark plug, that might help a bit.

 

[tlandrum]

cant wait to see how yours turns out. i may be building one soon.

 

[parrisw]

cant wait to see how yours turns out. i may be building one soon.

Ya me too Terry!! Good luck with yours if ya get one.

Will

 

[tlandrum]

i built and ported 2 saws today at the same time. one xp and one xpw. i cant believe how much stronger the xpw is with the same porting in both saws. the xpw rocks.

 

[parrisw]

i built and ported 2 saws today at the same time. one xp and one xpw. i cant believe how much stronger the xpw is with the same porting in both saws. the xpw rocks.

Wow two saws in one day. That would take me 2 weeks. So what's the deal with the xpw, I got one coming soon. What kind of numbers do you use one them? PM's are ok, if ya don't want to post here.

 

[tlandrum]

i have no secrets on numbers. i am running about 162 intake 168 exhaust and 22* blowdown. pop up and combustion chamber flattened. transfer walls raised almost to the divider no windows in piston. widened as much as possible (about .050 left). giving numbers out is just a good point of reference for people to work toward . my numbers are high for most people but they are runners.. anyone who has ran my xpw's would agree.

 

[parrisw]

i have no secrets on numbers. i am running about 162 intake 168 exhaust and 22* blowdown. pop up and combustion chamber flattened. transfer walls raised almost to the divider no windows in piston. widened as much as possible (about .050 left). giving numbers out is just a good point of reference for people to work toward . my numbers are high for most people but they are runners.. anyone who has ran my xpw's would agree.

Cool, thanks Terry. Wow you widen to .050" to the piston skirt edge? I guess I go pretty conservative at .100"

I've seen the one vid of your xpw in a square cant. Its pretty quick.

 

[stihl038x2]

Cool, thanks Terry. Wow you widen to .050" to the piston skirt edge? I guess I go pretty conservative at .100"

I've seen the one vid of your xpw in a square cant. Its pretty quick.

I aim for 1,5mm (~.060 for the Southern Boyz :msp_razz: )

Steve

 

[parrisw]

I aim for 1,5mm (~.060 for the Southern Boyz :msp_razz: )

Steve

I have gone wider, just most of the time, I shoot for .100". Do you go past 65% of bore dia?

 

[parrisw]

Worked on the muffler today.

Opened up the stock port, then welded the deflector back down.

Made another port, and made my own deflector with spark screen.

 

[parrisw]

Finished up. I don't particularly like the screw down deflectors but I thought I'd try it. I never usually run spark screens but thought I would this time and like to be able to remove the spark screen if needed.

I cleaned it all up and painted the muffler and painted it, paint is drying now, will post a pic later of it put together.

 

[NORMZILLA44]

Looks good Will.

 

[parrisw]

All done the muffler. Looks much better all together and painted.

 

[tree monkey]

no vid? then it's not done yet

 

[parrisw]

no vid? then it's not done yet

LOL, I said the muffler was done. Still don't have a tank vent. I ordered one from Baileys, it was on back order, should of been 1 extra week, which would of been here this week, but got an email saying it might be up to 30 days till I get it?????? So I'm going to call around locally tomorrow. I hate waiting.

 

[Jacob J.]

Don't forget Will, I put a new tank vent in with that starter decal, so it should be there anytime. It was mailed last Monday?