3120XP Build Thread

[Lee H]

I'm way....way ....way behind you know.

I don't care about how way.........way............way behind you are. I just want it done damn it.


Would it be to much to ask if maybe get it done for the April NY GTG

 

[huskihl]

Did you use @huskihl fingers for a template?

Why Yes. Yes I Did.

Pffft.
Dem look more like bacon, not sausage

 

[Brewz]

Droopy flaccid fingers

 

[Mastermind]

I don't care about how way.........way............way behind you are. I just want it done damn it.


Would it be to much to ask if maybe get it done for the April NY GTG

I'm sure we can work something out. I need one of them 166s you are hoarding.

 

[Mastermind]

Pffft.
Dem look more like bacon, not sausage

Mmmmm BACON !!!!!!!

 

[Deets066]

Crispy is mo better

Droopy flaccid fingers

 

[StephK87]

I'll be damned......it is later. LOL

Generic 3120XP porting for me. This is what I do to em all.
View attachment 113106 View attachment 113107 View attachment 113108

Awesome work!!!.... but we know the secret's

 

[Marshy]

Did you use @huskihl fingers for a template?

They look like banana ports to me.

 

[Brewz]

Randy.... I'm interested to know what your thoughts are on the difference between the flaccid banana fingers pointing directly up at the band and strait hard fingers aimed center rear of the cylinder.

 

[Mastermind]

Randy.... I'm interested to know what your thoughts are on the difference between the flaccid banana fingers pointing directly up at the band and strait hard fingers aimed center rear of the cylinder.

View attachment 113239

Probably very little difference. I was just going for volume.

 

[Stihl working Hard]

I'll be damned......it is later. LOL

Generic 3120XP porting for me. This is what I do to em all.
View attachment 113106 View attachment 113107 View attachment 113108

Beautiful work as usual Randy thanks for sharing

 

[stihl_head1982]

These types of threads brought me to AS years ago. I know they are tedious for your, but I am grateful for your willingness to share them. Thank you sir.

 

[Mastermind]

These types of threads brought me to AS years ago. I know they are tedious for your, but I am grateful for your willingness to share them. Thank you sir.

I'll be adding more to it when I get the rest of the parts.

I appreciate the words of encouragement.

The last year with all the drama has taken quite a toll on my willingness to share. It's more important to think of the good members we have here than to keep being hardheaded about it.

 

[Jetmd]

Drama.....what I missed the Drama?

Nice thread as always Randy.

Take care,

Chet

 

[mgr1]

How much faster do you make them? Whats the story about to high rpm on these types, there is some talking about lower end damage when they are ported and turn 12000/13000 rpm.

 

[Wonkydonkey]

Awesome work!!!.... but we know the secret's

Dam that man gotta big mamma moobs, some girlies will be jealous

 

[Mastermind]

How much faster do you make them? Whats the story about to high rpm on these types, there is some talking about lower end damage when they are ported and turn 12000/13000 rpm.

I just build them to be able to pull long bars better in big wood. I recommend tune to be at 12,800 MAX.

If they run too long over 13,500 or so, the connecting rod will break. Then it will act like a whipsaw, and do terrible damage to the case, and sometimes even the fuel tank.

 

[mgr1]

Thanks for your response.
Is there no other conrod to use?
Racers used the o84 one i read on the other site

 

[Fruecrue]

Pics of the terrible damage?

 

[Mastermind]

Thanks for your response.
Is there no other conrod to use?
Racers used the o84 one i read on the other site

Yep.......the 084 rod is what you'd want to switch to if you plan on spinning it over 13,500 much.

Pics of the terrible damage?

I've been very careful not to twist these big beasts too high. And......I make sure my customers know that they are not race saws. So......I've never seen one come apart. Cliff Helsel is the guy that warned me, and shared that graphic description with me.