Stihl 400 R c-m, DYNO RUN (3 Foot Bar) Stock vs. Psy-Ko
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- เผยแพร่เมื่อ 17 มิ.ย. 2022
- Filmed in May, 2022.
This 400 projecting has been an interesting one. As mentioned, I came at it incrementally. Or, baby steps if you will. Multiple saws & topend assemblies later we see the Psy-Ko S version running against a bone stocker with a LONG bar on a big, fairly hard cut.
The cut gained a little bit of diameter as we are headed to the stump going further back. The zipped 400 also had the start of a knot to deal with also.
The chain has one sharpening. The teeth area as long & wide as they will ever be. Another reason that this test session is considered a dyno run.
The engine -
50mm bore x a 34mm stroke which nets 66.76cc.
Stage 2 smog saw - stratified with raw air.
Factory rated at 5.4hp.
Looking at the timed runs -
Stock 400 at 13,680 rpms wot went 40.50 down and 44.12 up.
Psy-ko S 400 at 14,040 rpms wot went 31.78 down and 36.51 up.
The chatter in the chain is almost non existent in the zipped saw as it has enough power to pull through it. the chain chatter is easily heard in the stock saw.
I was super well pleased at this point in the saw testing for the motor saw (ms) 400.
At the time of your viewing this, I may, or may not, be immediately available for custom saw modifications. I am booked out several months regularly. If you are interested in having a saw zipped, please shoot me an email. That is the best, first point of contact.
danger_cat@rocketmail.com
Thanks for watching. - บันเทิง
I did scrutinize the time differentials closely. The results are listed in the description area.
Adding in on the 19th - to all those out there, Happy Father's Day. Thanks for watching.
Very impressive Mr. Jack, the gains in time and handling of the chain. It is evident you have a successful recipe on the zip. Great dissertation on the wrap-kit, oiler mods, and the chains as well. I also noted the lighting and wind cooperated and the crows had something to say...Happy Fathers day to you sir....
Brian hi
God was smiling on me there. Hope Father's day was good to you also.
Thanks for watching.
That's an incredible Stihl 400 you did. Another very well done custom saw, makes me want to get one.
Very impressive gains👍👍 nicely done
Screamin demon! Impressive sir!
Pretty impressive build there, movin' right along. I agree about the stops, we call them drags too, one more of the many names we hear them called. I've used gauges only to wind up tossing them. There are too many variables, size, and type of wood length of bar, size of powerhead, life of the chain and so on. I just take them down till it's where I want it and hope I don't get into anything much harder than I'm already in.
I am really surprised with that stock saw performance, You did an awesome port job as always, Sir!
I'd love to have you build a saw for me. I've seen your videos for years and years and always thought how much I'd love to try your builds
Wow nice saw 👍
I love what you do sir great some love the knowledgeable answer and the honesty and humbleness you show ill be contacting you to get a zipped saw id love to pick it up if possible
Looks like a massive upgrade in torque
Very impressive gains! Very impressive overall product! I would take that zipped saw all day over practically any stock saw from any manufacture.
Well done sir. Happy fathers day
Charles. Hi.
Belated happy Father's day to you as well.
Thanks for watching.
Happy Father’s Day Jack.
👍👍👍👍👍🏅
That's pretty impressive for a 67 cc saw wow...must be that new light weight piston ....Shoe
Robert hi.
Thanks.
The Mag piston does help a little.
Probably more along the lines of what the tuner did internally.
Thanks for watching.
Nice gains with the 400! I run the high output oiler at max output for 24" & 28" bars in hardwoods any less output and I get significantly more bar and tip wear. Time spent figuring out the best possible chain grind for the wood you are felling is time saved in the woods, both in cutting speed and amount of cutting between sharpening. Those felling spikes are different than what came in the wrap kits I have purchased. The ones you are running are what I am looking for, did those felling spikes come with the wrap kits you purchased ?
230E hi.
Bar oil is doing multiple functions.
It is cooling the drivers & chassis. So by default, the teeth as well.
Bar oil is reducing the wear on the drivers, chassis, AND inner bar groove as well as rails.
Bar oil is also cooling the bar itself.
What gets missed is that your chain will actually cut better the higher the quality the bar oil is.
It is nearly on par with choosing a great mix oil regarding the importance of bar oil.
Seems like you have that figured out.
Thanks for watching.
@@hotsaws101 Thanks Jack.
Have a Great Day!
Great looking saw, what dogs are you running? Are they off a different model?
Hey video jack!!
It’s just total irony that Stihl is doing what husky did 30 years ago with their bore and stroke lol
266xp-400cm
272xp-462cm
And husky is going down a way different path with their bore and stroke
I own a 572 and a 462, And like in one of your previous videos those two saws cannot be any more different but they both have their advantages
They are both good saws!!
Take care jack!!
What are the parts numbers for the double dogs/spikes you have on?
The Lumberjack
Jackyl
Composition: Jesse James Dupree
Ha haaa
I was born in the backwoods
Of a two-bit nowhere town
Fathered up some rock 'n' roll (baby)
So your mothers could boogie down
I ain't whistling Dixie
No I'm a rebel with a groove
All around the world the go 'round and 'round
When they dig on my new stainless steel sound oh yeah
I'm said a lumberjack baby
And I'm gonna cut you down to size
I'm a lumberjack now baby
And you're the one you're the one that gets my prize
When you hear my motor running
You know I surely be coppin' a rise
Oh! So I'm gonna crank it up down the alley and jack it
Woo
I'm a lumberjack now baby
I'm a lumberjack now baby
I'm a lumberjack now baby
Ohh I'm a lumberjack now baby
But I ain't jacked my lumber baby
Since my chainsaw you
(Oh yeah)
Ha haaa
Whether you like it or whether you don't woo
That's the way we like it
Wait did a stock 400 just pull a 36" bar with no oiler mods??
I bought the 462 over the 400…. Did i go the wrong way??
No
Absolutely not! I have a 400, 500 and the 462. And I always grab the 462. Great saw
@@benredmond8271 awesome that’s good to hear
462 has more torque and can pull and oil a longer bar. The weight difference between them is almost non existent. You made a good choice, don't worry.