Inside the "Triple Nickel"
- Thread starter blsnelling
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bryanr2
Addicted to ArboristSite
you didnt want to be known as a ****?steven.. good choice
Yeah it took 5 min of 6 grade to know that I was going by my middle name.
Hell and that was 20 years ago. Nah, im a "II" never really deserved to be named after my Dad. I did a lot of wrong in my teens and brought shame to my parents name being stupid (nothing illegal). I have spent the last 11 ears trying to make atonement. Now that I have 3 children of my own, I appreciate my parents very much. Enough of that spill though!
She's all done and running like a dream. It fired right up, idled perfectly, and has instant throttle response, just like a ported saw should. What's not to like? Unfortunately, it's too late to cut with it. I can't wait to get this thing in some wood!
Here are the final port timings:
Exhaust - 103°
Transfers - 114°
Intake - 79°
Compression - 180 PSI
This saw is a clone of a 550 in every way I see. The port timings on this saw are within 1° of what I put in that last 550 that ran so well. I'm also within 1° of where this saw would have been stock before any machining, with the exception of the intake being lower from dropping the jug. I'm very pleased with the compression. I'm up 35 PSI from where I started.
Here are the final port timings:
Exhaust - 103°
Transfers - 114°
Intake - 79°
Compression - 180 PSI
This saw is a clone of a 550 in every way I see. The port timings on this saw are within 1° of what I put in that last 550 that ran so well. I'm also within 1° of where this saw would have been stock before any machining, with the exception of the intake being lower from dropping the jug. I'm very pleased with the compression. I'm up 35 PSI from where I started.
bryanr2
Addicted to ArboristSite
opcorn: Sounds like a "sick day" at work is in order for tomorrow.
It's not that late!!!
bryanr2
Addicted to ArboristSite
hell Ive run a Vermeer chipper after 10pm before in my yard.
KenJax Tree
Terraphobic
Brad i've seen video of you cutting in your headlights.
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bryanr2
Addicted to ArboristSite
my neighbors hate when summer rolls around. Lots of noise playing with the toys.
KenJax Tree
Terraphobic
Yeah we get some funny looks we fire up the chipper and chain saws at 7:30am lol
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OK, it's too late, too dark, and toooo cold!
bryanr2
Addicted to ArboristSite
Im what they call "Unapproachable"
. And this little feller don't take kindly to strangers. Hell, even my parents call from their car. No one comes thru the gate.
I personally think 180-190 psi is ideal for a strong woods saw.
Going to show any pictures of the port work?
opcorn:
I intended to take pics. But once I get going, I don't like to slow down. It'll probably be back apart again. I've got a set of 562 transfer covers coming. I want to see if they make much difference.
Im what they call "Unapproachable"
View attachment 380554
I'd pet him. lol
wigglesworth
Booned
I'm all about accheiving a higher compression ratio, without hindering flow across the piston crown. A popup will hinder flow. I've seen it with my own two eyes. Heavy carbon buildup, uneven piston wash and even detonation.
How many saws came factory with a pop-up piston? Only one that I'm aware of, the 028 super.
Nobody ever wonders why?
On some saws, yes. Others, no.
just how many 2 stroke boat motors out there have huge dome pistons,how many different brands of dome pistons are out there for hot rod drag cars . theres nothing wrong with a dome piston. theres been an awful lot of domed piston work saws built in the last decade and now all the sudden its not good enough.
bryanr2
Addicted to ArboristSite
let's put it into perspective, he wont let the pizza guy come thru the gate.
Sagetown
Farmer and a STIHL
U must be related to Crocodile Dundee
