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modding my 390 Husky

Started by timberjack 450, February 20, 2013, 06:13:21 AM

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MakitaCS

The scary thing about this Summit Saw Shop 390FP...

It doesn't even have 3 thanks run threw it since I bought it new.

Once it has at least 10 tanks run through it, I'll post a vid sporting a 32" bar  ;D

It'll sound and run like its younger brother sporting the same style finger ports. Btw, the 346FP is still running the OEM carb  :-X

http://www.youtube.com/watch?v=QhH0tds7iR4&list=UUajZbXHo90pcHQr1a1G0WKw&index=6
CHEVYTOWN13

Al_Smith

In addition  to being noisey is that saw considered fast by the high standards of California ?

The one that showed up near Meadville Pa a few years back was noisey but router made it certainly was not fast even considering corn field standards . ;D Perhaps there has been some improvement in techique since .

Work on your chain Rick .The saw doesn't sound bad but the chain needs some help .

JohnG28

I think that 346 looks faster than the 390, least by my observation.  ::)
Stihl MS361, 460 & 200T, Jonsered 490, Jonsereds 90, Husky 350 & 142, Homelite XL and Super XL

Al_Smith

If you look on U-tube under "Chevytown 13" you can probabley find a hundred vid clips of saws Mr. Medina is suppossed to have modified .

One is praticularly  interesting and is in fact some model of Makita his current user name which appears rather quick .That is until one takes note of the pine it's cutting which certainly is not oak .That fact aside that praticular saw is pulling a nice trail of chips so evidently someone knew how to file that chain or it was brand new .

I might also add that a 346 Huskey was shipped from Ohio to that area of California,Red Bluff  about that time in fact to a buddy of Ricks .So the internet being what it is really it's hard to say exactly who did what ---and when . ;)

As far as that praticular model if it's the same one I know who did it and who the brains behind it was and exactly where it went . ;) Funny isn't it exactly how small the internet has made several thousand miles seem .

AdkStihl

Interesting.
I know a guy in Ohio who builds saws.
As far as being impressed with the 346 video, I certainly am not.
Weird how the video cut out just before the saw seized....kinda like the 390.
Also....the idle is WAY high on that 346 or the low end is too skinny.
My guess is.......ya ready......
The tranfers had too much material removed along with the "FP"ing and reduced transfer velocity caused idling issues and needed to be over corrected with the idle  ;)
J.Miller Photography

Al_Smith

Another astute observation . Fact one praticular fellow had them hogged out for extreme high speed and they needed to be brought back down by  the chain break because they had "run on " terrible .

In that case of extremely acute finger ports it might make for a dandy three cut wonder but if it snags a ring it will try to lift the cylinder off the engine running at over 16,000 rpm .From cookie cutter to junk in about a millisecond . :o

Cut4fun

All them finger ports looks like Tommy Fales Jr. work he showed us years ago.   Good to see Tommy's ideas still working.  ;) :D

Must be real slow elsewhere.  lol smiley_wavy smiley_roller

Al_Smith

 ;) Great minds think alike or so it seems . I kinda wonder how close Red Bluff is from young Rick ?

I kinda miss good ole Tom Tom in a way .He was in a hoot and I warned him about getting in a war of wits if one is only half so equipted to do so .

Now I can't figure out where in the world Mr.Medina got off to .Unusual he hasn't spoken out in a  type of slang  that it takes three hours on Google to figure out what in the world he said ,let alone what it means .

I have to quit this but I'm having too much fun with it . :D

MakitaCS

I ported another 346xp into a 346FP and its now residing in Montana with Nate, aka Metals406.

You better re-up that bucket of popcorn  :D

20" 3/8" full comp goofy filed @ 3500'

http://www.youtube.com/watch?v=iNkkTbJUHbg&list=UU8PKPdr2q3TVxyCzuEhaN7w&index=1
CHEVYTOWN13

Al_Smith

Well I'll give that one to you Rick .It's certainly an improvement over the one that showed up in Pa .

So evindently the router got sent back to a life of milling out cabinite doors again ?I assume you still have all your fingers .

MakitaCS

To the grumpy old man and the redneck...I like the avatar I have and the modifiedsaws I build myself,

I'm so far gone from the "rs" days it's not even funny. Those FP's aka CT13's that were developed during my time there are stout. One of rednecks buddies decided to try them. You know the old sweet adage...if you can't beat em, join em.

Here's the CT13 trilogy. 346FP WCE doing brush work behind Summit Saw Shop at the edge of the game trail. That was a fun day running a saw  :)

http://www.youtube.com/watch?v=mMqxVPI60Ps&list=UUajZbXHo90pcHQr1a1G0WKw&index=1

Next time I post, it'll be of a 390FP 32" buried in hardwood. I'm ready to call checkmate.

Almost forgot!

I ported some CT13's on Neil's piped 3120. I'll be back in a few and post that vid to turn the wrench even more...;D

CHEVYTOWN13
CHEVYTOWN13

AdkStihl

So.....you take a 31 month vacation from FF and decide to come back one day. Why?
You get sent to ban camp on another forum and have no where else to show your videos or talk smack?
Don't waste your time uploading the video for my sake, I could care less.
J.Miller Photography

Al_Smith

Exactly what "wrench " are you turning Rick ? That 390 should certainly pull a 32" with ease even stock .I mean if a dummy like me can get 72 cc's to do it in grand style a self proclaimed  genius should have no problem especially with more cc's to work with ,a full cubic inch as a matter of fact .

I would have thought you would  have seen that 038 Mag by now but I guess I forgot that you were banned from those sites ,pity .

Let me give you a little hint sir .Leave the chevytown 13 out of your signiture ,area 51 and all that mumbo jumbo .You might be able to sneak by under the radar on your next user name whatever  and wherever that may be .

I'll give you this though the 346 runs well ,ya did good .---but I know several right here in the redneck cornfield that run just as well so you didn't reinvent the wheel .

JohnG28

OK, so who's the redneck? Is it Adk or C4F? Sorry Al, I'm assuming you're the old man. :D Also, how does one take a procedure such as finger porting and assign it a term such as ct13? May be better left alone, because I could think up some creative designations for creations of my own I suppose, though they wouldn't be anything I could share here.  :D
Stihl MS361, 460 & 200T, Jonsered 490, Jonsereds 90, Husky 350 & 142, Homelite XL and Super XL

Al_Smith

It's an experiment that evidently worked I'd well imagine .But keep in mind if you ever saw some of those radical finger port jobs they are a wish and a  prayer from snagging a ring .

Some use external boost ports originating low on the crankcase and ending right above the intake at about the same level as the regular transfer .Keep in mind almost nobody  tries that on a working type saw .

Then you have up the back through windows cut in the back of the piston transfering through to groves ending above the intake port .None of those methods or any other is a radical new found cure all magic elixer because they've been around for decades .

Yeah since you asked I'm the grumpy old man . ;D


beenthere

south central Wisconsin
It may be that my sole purpose in life is simply to serve as a warning to others

Al_Smith

Quote from: MakitaCS on April 22, 2013, 10:56:57 AM
To the grumpy old man and the redneck...I like the avatar I have and the modifiedsaws I build myself,


CHEVYTOWN13
You missunderstand Ricky .It's not the avatar ,that's just a picture evidently of something chucked in probabley a Logan lathe .It's the fact you embed "Chevytown13" in your signature and everybody knows who it is and what to expect .You got your wish of noteriety you long for so desperately . --be carefull what you wish for -- :D

clww

I wonder if the OP has learned anything at all pertaining to his question?
Many Stihl Saws-16"-60"
"Go Ask The Other Master Chief"
18-Wheeler Driver

Al_Smith

Seems it got completely off track ,oops .

To the OP it would seem likely on a saw of this displacement that a simple modfication of the muffler with retuning the carb would probabley get the job done .It's been proven in a lot of situations that just by reworking the muffler can often show an improvement of 15 maybe 20 percent depending .

Obviously  it will get louder but you really should be wearing ear protection anyway .I wish I had over the years because I have a little ring-a- ding in the ears now from not .Too soon old and too late smart .

MakitaCS

And why a Foredom? This machine has a lot more torque than that dental floss and dremel combined. When ya need torque to port a lot of material quickly, good luck, you might as well use a router  :D

Grumpy and redneck, I'll be reaching for my queen soon...

CHEVYTOWN13

AdkStihl

J.Miller Photography

Al_Smith

Quote from: MakitaCS on April 23, 2013, 10:10:03 PM


Grumpy and redneck, I'll be reaching for my queen soon...
Should that be taken literally or figuratively ? :D

Al_Smith

Quote from: MakitaCS on April 23, 2013, 10:10:03 PM
And why a Foredom? This machine has a lot more torque than that dental floss and dremel combined. When ya need torque to port a lot of material quickly, good luck, you might as well use a router  :D

 
Well Ricky I guess you should be the expert on the router portion of that statement . I'm not certain where the dental floss fits into  the equation ,care to elaborate ?

Then according to that to a true expert it's more about the amount a tool can remove rather than the technique involved as if the process were an assembly line method ,like a 20 minute port job according to your genious mind .Interesting thought pattern .

Now young man just so you know I have an air powered die grinder that will go through cast iron at probabley twice the speed your fancy Foredom can gnaw away at aluminum .No in case you wonder I do not use it on a chainsaw engine .

Your turn ,trying thinking before you type .

Jeff

Just call me the midget doctor.
Forestry Forum Founder and Chief Cook and Bottle Washer.

Commercial circle sawmill sawyer in a past life for 25yrs.
Ezekiel 22:30

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