Building a 390XP Monster

[Scandy14]

I have owned all of them and there are advantages and disadvantages to each model. But to answer your ? simply the 385/390 and the 395 all have the same stroke 38mm or 1.5 " now the 385 has a non windowed 54mm piston , the 390 has a 55mm non windowed piston and both 385 & 390 have inboard clutches and the chain tensionier in the side cover of the saw. Also the 385/390 is about 16lbs dry which is about 2lbs lighter than a 395 at 18lbs dry now these weights are true weights of the saw not the factory advertisment. Now the 395 has a 56mm windowed piston , an out board clutch with the chain tensioner in the body of the saw. So there I gave you the specs and differences. The only thing that makes a 390 better than a 395 is in stock form the power to weight ratio is higher and the easier access to the chain tension adjustment screw. But the 395 is made very very well it is one of the toughest saws ever made and for a long bar saw it's hard to beat. The 395 is a torque saw for cutting big trees all day or milling. I am actually building a 390xp with a 56mm bore and a 2100 thin ring piston if I can locate one. If not I will use a Meteor 395 piston. So I hope all this garble of info I just spit out help you to answer your question.

Thanks for taking the time to explain the differences.

 

[Rudolf73]

Subscribing opcorn:

The 390xp uses the 372 muffer right?

 

[blsnelling]

Subscribing opcorn:

The 390xp uses the 372 muffer right?

Yes.

 

[Cedarkerf]

my impression,, the 395 is the torque monster, the 390 has the rpm's and throttle response. Cedarkerf has a knarley 'slingr 390 he brought to the pnw gtg.

That was my slinger 372xpw but it out cut a couple 390s at least one was modded

 

[blsnelling]

Go wide or go home! This is a little wider than the last one, but it's also mine if I snag a ring.

 

[tlandrum]

you call that wide:jester:

 

[Rudolf73]

Go wide or go home! This is a little wider than the last one, but it's also mine if I snag a ring.

What kind of special tool do you use to mark you cylinders? It looks very neat.

 

[tlandrum]

id say a ring and a straight edge

 

[teatersroad]

That was my slinger 372xpw but it out cut a couple 390s at least one was modded

right, that rattled into my head today that you had a 372xpw. At some point I thought I ran a 390 and FarleyBob's 394 back to back - don't remember whose though.

 

[Jacob J.]

Subscribing opcorn:

The 390xp uses the 372 muffer right?

Actually, the 385/390 muffler is different than the 365/372 muffler but both will mount to either saw. The 385/390 muffler has additional internal bracing and an extra plate where it mates with the exhaust port lip. If you go to a dealership, the OEM 385/390 muffler is considerably more expensive and has a different part number.

Timber cutters here running modded 372s spend the coin on the 385/390 muffler because it lasts longer in the woods.

 

[blsnelling]

Here the 390 ported. It does not yet have a popup in it. It will also be getting some carb work.

If someone could embed this for me, that would be great. I can't seem top do it on my phone.

 

[MacLaren]

Brad, that looks awesome! I dont think you need a pop up. I would try to embed it, but i was just walkin out the door to go to my dads house when I noticed the site was back up. But at any rate congrats on a smashing success!!

 

[blsnelling]

I just need some real wood to put it in. Maybe I'll drop by Andres after work tomorrow, or maybe Saturday.

 

[Officer's Match]

I just need some real wood to put it in. Maybe I'll drop by Andres after work tomorrow, or maybe Saturday.

Dang the luck, you need some wood for that beast and I need a beast for some of the wood I'm bucking now. Dropped a 24" dead standing Locust on Sunday that's making my 2153 say what the heck do you expect outta' me?

 

[ChipMonger]

Looks good Brad, but please bury that bar in some big wood and do that saw some justice

 

[mweba]

yup

[video=youtube;xBqp3V4om2s]http://www.youtube.com/watch?v=xBqp3V4om2s&feature=youtube_gdata_player[/video]

 

[blsnelling]

Actually, the 385/390 muffler is different than the 365/372 muffler but both will mount to either saw. The 385/390 muffler has additional internal bracing and an extra plate where it mates with the exhaust port lip. If you go to a dealership, the OEM 385/390 muffler is considerably more expensive and has a different part number.

Timber cutters here running modded 372s spend the coin on the 385/390 muffler because it lasts longer in the woods.

I found this out when I opened up the mounting flange on mine last night. Definately a very sturdy muffler.

 

[blsnelling]

Thanks mweba.

 

[mdavlee]

Looks nice. Need to get it and your 660 into some big wood together.

 

[blsnelling]

Looks nice. Need to get it and your 660 into some big wood together.

That would be a good show down. Hopefully I don't slow the 390 down with the popup. I have seen that happen. Compression is 155 cold right now.