EXTREME CYLINDER PORTING on a Stihl MS461... did i take it too far??? numbers in description...
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- Опубліковано 15 бер 2022
- INTAKE 84
EXHAUST 95
UPPERS 120
BLOWDOWN 25
SQUISH. 019"
-Finger porting on upper transfers
-Exhaust free porting. 020"
-Tonsiled intake roof
-Domed/machined piston
-Caber ring .004 ring gap (eliminated lower ring)
-Machined cylinder base and squish band
-Opened windows on piston and shaved material from inside of piston to lighten
Running MS440 coil and NO timing advance... carb is bored out and running 044 muffler and custom dual port muffler cover and prototype air filter
Thanks for watching
johnscustomsaws@gmail.com
@johnscustomsaws on Instagram
Great fricken work brother!! That’s how you get rid of that “1” series “turbo lag” that I hate so fricken much!
Sounds great.Very nice work on the cyl. Love the "Beaver on bath salt" too funny.
You really opened that thing up looks incredible
Sweet build man great work sir as always!
Bloody brilliant build 👌
Beauty! Throw a turbo on it while you’re there! Haha!
Great video. Watched a 200T Built that’s how I found you and learned a couple things in the vids.
Just getting into this porting gig man it’s fun!! So many variables one can do I can’t see it getting boring any time soon.
My first port job is/was on a little plastic made in Mexico 38cc McCulloch. Look out folks! The forest will never be the same!!! Haha!
Hey gotta start somewhere.
Looking forward to your next video take care,from Alberta Canada.
She sounds like a ripper...well done 👏
That’s the note! Like a highly overdriven screaming lead bend! 🤘🏽
Right!!! Its the best way I have heard to explain the sound 🤘🤘🤘
@@johnscustomsaws yea buddy
Hot damn!! She pulls, boys!!!
Wicked brother!! 🤟🤟🤟
Man that’s kick ass
That's Awesome.
Wild huh... did you see the numbers im running? I put it in the description 😉
Nice!👍🤘
Ok you sold me! How busy are you with saws? Im in MN 1.5hrs from you! Let me know pls
Clean work as always. I changed it to just Cajun and took off the worksaws since I’m doing a few other things on my channel as well😎
Oh good to know... I haven't seen any videos of yours lately maybe that is why... but I thought you disappeared
@@johnscustomsaws I’m still around just getting caught up at work and trying to get my hand healed. Can’t even run a strong saw yet. I’m able to play guitar more now. It’s kinda like starting over on Guitar
I noticed a big difference in my 460 as soon as I pulled the crappy spark arrestor out ,honestly it made a huge difference and it wasn’t even starting to block up .how much would a mild port job cost ,eg just open up and polish inlet and exhaust ports .
👍🏼 you need a properly ground square chain. 🤘🏼
Hi can you pull timing out on a saw when you hit the nitrous? If so leave the compression high on my banshee we run 14.1 and a 70hp kit just pull a few degrees out cut ground strap on plug and run q16 .big power lol
As the audio engineer and small engine guy, I make the exhaust note comparison to having a couple of strings out of tune on the guitar for the stock engine and it might sound kind of okay. The ported saw is the same guitar with all of the strings in tune with the intonation set right on and it's perfect.
Yessir... that is a good way to put it 💯 i dont have the best ear where as some people can pick out octaves and notes spot on every time... I don't have that natural gift... a guy can train his ear but its a challenge... I can however tell if something isn't in tune... im taking the long way around here to try to tell you I had played guitar for YEARS before I learned what intonation was lol... changed my life 🤯 i was like... so that is what those little slidey things do o the tailpiece 🤦♂️😆
@@johnscustomsaws I have been in the music business since I was 19 everything from repairing woodwind instruments to guitar repair to music retail to full on audio production for festivals and the like, along with my small engine side business and technology support at a university. Music is a great thing to have in your life, it help keeps you sane. 🎶🎶👍
Not to bad for a mild build saw. I don't know that first run look of all close. Lmao
Good job sawrus nice 👍 sawrus Trees-R-Us 👍
Let’s go! John I want to start the bid on the 200T
The 500i will be up for grabs tomorrow most likely and the 200 i am waiting on some parts probably be a week or so... getting parts from stihl is hit and miss lately... I hope you get it man trust me I would love to see it go to you 💯
@@johnscustomsaws 👍👍 you’re killing it John! Let me know if you need more saws
@@johnscustomsaws when u have saws 4sale where do u sale them at if i may ask?
Big difference in how they sound and cut.
That’s awesome sounds great runs amazing seems like a torquie little monster know what is funny you probably build another one the same exact way and it won’t run for crap wonder how much further you can push the porting the head doesn’t seem to have a lot of meat too it it’s kinda like what We were talking about earlier every engine has a sweet spot you seem to have found it wonder if you play with the jetting in the carb it would make things better or worse
I agree... I would not doubt if I did another 461 similar and it ran like crap... and the single ring I have done before and do on my other NOS saws and it seems to take from the torque but this saw has torque for days and I still can't explain it lol
What is the bar length, 24" or 28", the balance is perfect.
Do you float cases?
Definitely a ring snagger.
Do you have a rpm meter. Handy
Sir i have two stroke cylinder i want to increase its rpm power please help me how i can increase the speed from its ports. Please help me tell me sir
I'm confused how you can run those uppers that wide, aren't you going to hang ring-ends in them? I literally have multiple big bore kits I considered ruined because using them meant that a piston's locator pins would be within 1mm of my uppers (IE I did my uppers before realizing the issue) but seeing this I wonder if it matters...how could they not get hung though?
Are you selling top end kits yet?
Wat does drawing the transfers windows down the cylinder wall/finger porting do?
They are runways for the nitrous 🔥🔥🔥
Wow keren bos 👍
I’m about to send my 661 to Kevin. Next week I’m excited to cut some big timber. What fuel and mix ration do you recommend customers to run your ported Saws at? I normally run 50:1 VP premix but going to switch to VP c9 with amsoil dominator at 40:1
40:1 at a minimum!
Dominator is possible.
I really like the 40:1 VP premix but I do not step on others builds so I say whatever he tells you to run thats what you should do... no matter what me 9r anyone else says... he will know what works for his builds 💯
@@johnscustomsaws I will run what he says but I was wondering what you run for ported saws and if you have a preference.
@@bryanmarks4070 oh gotcha... I love the 40:1 VP... Its expensive to run premix tho so I get why some guys don't do it... I get it locally at an ACE Hardware and I pay 17.99 a gallon so its not cheap
Gonna be wild when the laughing gas comes in
Question: hard to find answers to a cpl questions. Not nessarily for saw engines but carburetors 2strokes in general. Looks as we believe in rough surfaces on intake side of things all wat to combustion chamber. so then do you think rough surface on crank counterweights would add to aiding in atomized fuel charge. Like rough/not mirror finish on intake port-transfers help with this then would it hold same for the crank counterweights aswell? them can be glass smooth from factory and crank case belly can be glass smooth as well. I’m wrkn a 4 cylinder 2stroke at this moment and just looking at this crank counterweights and there mirror glass smooth i envision it creating surface tension . So was wondering if could help with breaking surface tension and creating more atomized charge if I take the mirror finish off the crank counterweights . Motor I’m wrkn it a bad bad castings from factory so at this point I’ve got intake/transfers/ports all cleaned up. But I have glass finish crank counterweights and thinking it could help to be not be a glass finish. Zero info out there. Any thoughts would be much appreciated.
Roughing crank counterweights
Roughing crankcase are my two questions. Great wrk btw. I was skeptical when I first found you because there are hacks everywhere as you know. But your quality is impressive and your the best porter on utube by far. Pat your back man you deserve it. An anyone that knocks you is a nobody.
I have ground "fins" or "paddles: into the counterweights before... they call it a "veined" or "turbo" crank... I think it does a lot for performance but anything I do the "dyno guy" will try to copy it and throws on his machine and says it doesn't add power... honestly I don't care what his dyno says but until I can prove it I just do it for personal saws and good customers... I really need to get my own saw dyno and then I can test the stuff myself
@@johnscustomsaws ok I follow you. So wat about giving the crank an crank case same rough finish like the finish you get after porting. I think it would help atomization but yet I’ve nvr seen anyone rough the crank or crankcase. I value your opinion as your doin great things man.
@@johnscustomsaws ps I’m wrkn on carburetored merc sportjet engine 120hp 4 cylinder 2stroke. Ports and transfers and casting joints are so bad that there’s plenty info on porting them and cleaning up transfers and casting ect to gain 10hp per cylinder just no info on my thought of giving crank counterweights and case a rough finish like 80 grit something along them line. Going with the therory of your above statement I’d say it’s not a bad idea but just do t know if there’s something foulish I’m not thinking of witch would be big no no to do this. Thx again.
@@acurarl9929 I would say its beneficial and you aren't going extreme like I have where I am literally grinding 20g off each counterweight a and making paddles to really get things moving lol.. but any changes even very minor make the difference... thats why I laugh when these guys give me a hard time for trying to make my exhaust ports perfect and putting a mirror finish on them but I rough up the intake port... they think it's unnecessary and "for looks" 🤦♂️... everything has its place and its the whole package working together thar separates the average from the best... not saying I am the best but I ain't average lol
@@johnscustomsaws ya absolutely I believe strongly in rough finish on intake side of things and mirror finish on exhaust. I to shoot for perfection on my wrk but your wrk still looks better then my wrk and I try hard man but still don’t end up quite as nice as the few things I’ve seen by you. Just found your channel so not up on all your vids. But damn nice wrk wat I’ve seen. So many hacks out there that honestly thought you were just another one but then I really looked at your stuff and holy moly you definitely have it figured out super nice super clean super professional wrk. Like honestly next level stuff you do. And also a blast to watch your vids.
Speaking hog out. What happen with that one you fixed the port work on. How it turn out from that full race none running at idle port job.
It runs like dog shit lol... I will still blow it up too trust me 😉 u gotta find a good place to do it and I need a go pro... I want to have a camera right next to the saw when she blows up 💥😛
@@johnscustomsaws you get my info get a hold of me. Nick finally got home from hospital. So hopefully soon we can help figure stuff out.
You coin yourself with the phrase, "aspiring chainsaw AND guitar hack extraordinaire" !
I like it 🤘
I just need to side be side comparison pls
Man thats crazy , the Intake is huge.Looks like you pushed the intake Timing 10deg.
Wahts the Intake duration?Is any of your Saws freeported?
I woukd like to know how Freeported Saws are running.
I love to see your Stuff, very impressive and unique!
Kind Regards from Europe
Thanks bud... I pushed the intake like 13 degrees lol its wild... I do free-port some saws but its situational... I don't go real wide tho usually... .020" across the floor in the middle (not all the way across the floor) is how I would do it 😉
@@johnscustomsaws 13 degrees is a damn lot. Cant wait to see her rippin on Nitrous. Can you hear if a saw is freeported? Do they sound different?
Great work and Appreciate your Quality of your Grinding. Keep doing !
You should look into rc nitro engines. Similar engine but still think you could learn a lot from them. I have rc engines that turn 28k rpm.
Compression is not a 1:1 gain for power. It's a small percentage. I prefer ~180 psi because cylinder temps stay cooler. I can run my ported saw all day (13k in the cut) and it's cool enough when I set it down that I can touch the muffler.
That saw rips without nitrous
It’s for fun.,. Why would you think that it wouldn’t run with that series of finger ports? I’d have 32:1 in it and run that mo-fo until it pops then slap something else onto it??? Run it like you stole it!! The nitrous is going to be hot and expand that piston a good bit so you are doing the right thing by thinking.030 squish… you can’t measure the piston expansion after the nitrous run but you could toss the compression tester on it quickly to see what kind of increase you have??? If it’s 200 plus might want to start sanding the piston skirt to make more room????
Oh I knew it would run i just didn't know how well it would run with one ring and the numbers I'm running are pretty extreme more towards the end of race saw numbers... That's what I meant
@@johnscustomsaws she’s a peach! When I saw that cylinder I knew it was going to be a real dynamo!! 😂😂😂 that’s one of those porting jobs that could use a Wisco piston maybe! Run it till it explodes and build another one!!!!
I know your a Stihl guy but echo 630 nos saw ?
620
I just dont get into the echos but I have seen a duff echo NOS saw that John Riley built
@@johnscustomsaws Said it before but man if there was ever a reason for you to "enter a new market", a "JCS 2511t Super/Magnum" would probably be able to sell for a bajillion bucks lol, would be awesome (their 7310 is impressive AF but, considering its displacement and you+44*'s, I wouldn't expect you to have interest in the 7310 :P )
Transfers being dragged down-fingers. I been tryin to wrap my head around it but I just do not understand wat it could possibly do. I’m no stranger to porting and building engine. Not a small engine guy but that don’t change anything
Did you see the piston... the 461 has a "windowed" piston and the lowers transfers are under the exhaust port and not on the side like the old school 460... so when I run boosted nitrous I can use the finger ports to relieve the pressure from the boost and NOS ... this is all experimental stuff here man this isn't something I learned in the "Nitrous turbo saw builders" handbook 😆 i even said I dont think it will run good... but its actually a ripper 🤷♂️
@@johnscustomsaws ya Just took lil bit to wrap my head around. As I’ve nvr seen that before and just couldn’t make sense of it at first but it makes sense now and shit the thing runs like a like top. After I saw some other vids of yours I knew it was well thought out and i could only come up with it was to bleed off pressure but now that I see it all. It makes sense as the piston windows align with them. It’s intense still to say the least but it makes sense 100%. Still don’t understand how it runs so well with out NOS with it bleeding off thru that much finger porting but can’t argue the facts it’s right there running like a top
@@johnscustomsaws have you ran it on the NOS yet. Just thinking does nos rely on crank case pressure to make the transfer idk nos but I’d think it doesn’t so with that said think it could turn into a bombshell on NOS? I can’t wait to see you toss some chips on the bottle with that. Before this channel I didn’t even know this was a thing. I’m not a huge chainsaw guy. I mean I have a husky and I did port it way back just because I can’t leave anything stock an it was gutless out the box but I don’t follow the chainsaw world witch I’m sure is pretty huge these days.
@@acurarl9929 I am doing something to the saws that is keeping them from becoming a grenade... if you have seen some of the earlier NOS saw videos it was a disaster... and I didn't even get the real bad one on video where I blew the cylinder off the base on my 441 😬 that one scared the shit out of me 💩 but also made me realize what I needed to do so it didn't happen again... people have gotten seriously hurt and unless you do it correctly its incredibly hard to run it SUCCESSFULLY... im thinking that's why there are only 2 guys I know of running NOS saws constantly... I am sure there are aclot more that do and just dont put 8t on UA-cam but even in the racing world its not common at all
@@johnscustomsaws literally LOL'd at this one, thanks :D John, for a "ripper/hot" big bore 660 jug, what do you think of my approach of simply REMOVING the "bridge" cylinder-wall that separates the upper&lower transfers from one another? I didn't think of it "just to do it", I was hogging-out that tunnel (so the flat ceiling was extended further backwards, increasing "throat diameter" as well as length of flat-ceiling to ensure nice flat spray into cylinder), anyway I nicked inside of that bridge, didn't like how thin it was, so just thought "Well, when at BDC, the bridge is pressing-against the ring-grooves, so the piston itself would effectively "act as the wall" replacing the bridge I removed.... Thoughts? Piston-spring clips do clear this (though I'm still re-watching this vid wondering how you won't hang a ring, seems your intake port would just eat teh locator pins from both sides...is it because the piston is usually tilting forwards on powerstroke, at least once past exhaust-crack?)
put a tuned pipe on it and add another 30 to 50% power
ithnk HEY JOHN YOU NEED SOME MERCHANDICE OR A LINK SO WE CAN PURCHACE SOME STICKERS OR HATS OR SOME HOODIES, I THNK YOU COULD MAKE A LOT MORE SELLING MERCH THAN MONITIZATION OF YOUR VIDEOS JUSAYN MEGARY LUV YUR CHAN
Thanks for the support man... I definitely want to add merchandise eventually and its cool to hear you guys suggest it 💯 UA-cam was a cash machine in December and January but dropped off after that... I hear from a bunch of people they seem the same thing... I thought I was gonna be rich lol
You at a loss for words? 🧐🧐🧐
🤘5150🤘
Lol nobody knows what that means 🙄🤪
Is that right...
@@johnscustomsawsunless 5150 is code for something else then I know what's up. Owner of a 6505+ myself..wishing I had a 5150 stealth. Sorry about your recent loss. just lost a friend myself in the timber industry last week .
@@johnscustomsaws good amp! I have the evh5150iii
@@mastojiramidnight91 also a police code for the criminally insane. And a van Halen album 🤘🏽
It howels
Okay everyone runs 20 what the tights gone on one 12 15 10 on squish. What the lowest you can go.
17 on my 500i is the tightest... i know sone stock huskys are like 16 from factory which is crazy to me... but reallu it is all relative to where your other ports are at... strato saws are a different deal all together also... the only way to know for sure is to push it until it goes the other way and when u start losing power then you know 🤷♂️
12 slaps. I’ve seen evidence
@@cajun3197 oh shit I thought he was asking about blowdown 😆 yes listen to Mr Cajun nit John lol
@@johnscustomsaws I figured there was some confusion there 😂😂😂
Sorry my initial reply I misread your question and I was talking about blowdown my man... as far as SQUISH... I personally would not go below .017 but that is just me... and the numbers I was giving you in my first reply I was talking about blowdown... my personal 500i runs 17 degrees of blowdown and I have heard of stock saws running even as tight as 16... I personally haven't ran tighter than 17 myself but I know people that have ran 14 degrees and the saws ran so it really depends on the way its built
Take the blower air filter housing let's see the markings on the cylinder head talk is cheap
"talk is cheap", in an anon youtube comment, is about as ironic a statement as I've seen all week. I'd say his videos are more than enough but don't suspect you're open to reason (if you are, just watch his videos....and WTH are you implying would be so damning in the cylinder head anyways??)
Builders been finger porting for the production cutters forever in oregon.