Ahhhh, a rare glance of the secret porting station, where the wizardry happens🧐

Yes, Zenoah 50cc clones! I acquired 2 cylinders of 45mm bore, plus the one on my Alpina saw. Cyilinders have open single port on each side. I measured timing numbers for all of them. Thank you for your tutorial on using that digital angle meter! And now I'm scratching my head what to do with them. Numbers on one cylinder: EX: 105, TX:128, IN:72. Second cylinder: Ex:98, TX;124, IN:80. The one on the saw: EX:112, TX:132, IN:67. The saw doesn't rev high, but it does keep around 8 to 9k rpm in the cut with 18" bar. I don't need a longer bar, but I would like it get to the power a little higher in the rpm range. My first step with this saw will be to swap and try each of those cylinders, and see how the saw cuts with different port numbers.

Awesome work. I would love to see high contrast comparisons. Also would be really nice to see how you clean the cylinder and bottom end before reassembly!

Excellent Video!!! That flexible pen light is the bee knees.

Fantastic work, thanks for showing the before and afters, i learn quite a bit from those

Healthy bump in power. Like 25 percent more power. Awesome man. Thanks for sharing.

Thank you for showing your craft and results. Amazing

Ive always wanted to see a video where you test a saw at all the stages of porting so people can see what each step gets for gains. Full Stock, stock + Muff mod; stock + muff mod + base gasket delete; muff mod + base delete + lower transfers opened; then a final test of muff mod + base delete + full port job

Nicely done video after my first time giving it a shot it seems like laying everything out is a big part of being successful. Your recent series on the process has been really helpful saving for my next attempt at porting.

Thanks Joe! I would really like a better understanding of how altering ports and durations tailors power characteristics for torque/RPM/narrow powerband/wide powerband/etc.

Another great video !! Keep up the good work Joe !!! 👍👏

Nice job Joe! Very informative.

This is a great video! Fantastic gains!

Thank you for sharing your process!

I like that backhand grip on that handpiece I’m going to try that on one… interesting technique there!!! 😉👍

I know I might be late, but I would like to see simple man port bulid, so I think every one can grind on exhaust, intake, lower transfer, and probably find someone to cut the base(not likely a squishband), and see how the results goes. I gonna give a shoot these upper transfers one more time LoL I would love to see that grunt saw build, 50cc torque monster that would be so cool! As always, thanks for sharing tips and tricks :)

Very clean work sir thank u 4 sharing

Awesome video!

Nice video! I have to get one of those pen lights, a modified Christmas tree light has worked but one must be mindful of the wire :). A Stihl MS462 built for pulling a 28" & 32" in Hardwoods. Duel port vs. Larger single port comparison on a 461 & 462.

Great video! You are truly an artist with the die grinders! ⛓️🪚 🧰✍🏼🔎⚙️ 👨🏻‍🔧👨🏻‍🏭 👏🏼

Didn’t even know dentist/doctors worked on engines lmao

I cut some length off those long shaft burrs too… so you have some length but less chatter… those longer shaft burrs last pretty good for their price point… I like the little light through your plug hole idea there…👍😁

Nice work man

Nice Joe, even a heated handle model

Love to see a Professional at Work!! Amazing what they teach you guys in dental school L O L!

Thx for Explaining that "porting" cost alot in equipment :-D

Great video

Nicely done I love doing 395 XP cylinders they make a ton of power......💪

Wow nice gain in HP and TQ

Nice job

Thank you joe for all the info you so generous with

Great tutorial! Im just starting to play with porting, I'd like to see what a person can do with a cheap garage sale saw, like a 42cc craftsman or poulan... the 242xp and 42 special are little screamers, would be interesting to see what could be done with more readily available (and cheap!) saws.

Would like to see you work on open port cylinder like on a 61. See how to better shape the transfers on one of those suckers.😁

Awesome Gains!

Thanks for the tips. Cheers

I believe there is a lot of interest in the clone saws right now. Yes I know, the China thing. But people are snapping these things up by the handful and upgrading them with Hyway and Meteor top ends. I would love to see a few popular kit saws with baseline runs “as kitted” then runs with upgraded top ends then runs with upgraded top ends ported. With large cc saws running $1500-2200 these kits are popular.

Watching from Kentucky

THANKS, JOE. I WAS SURPRISED YOU DID NOT TOUCH THE INTAKE, BUT THE EPA 395 RAN LIKE MY OLD 394 WHEN YOU WERE DONE. YOUR OPINION CARRIES A LOT OF WEIGHT, AFTER ALL, "DYNO JOE" = "I CAN PROVE IT WORKS"... I'VE GOT A 58MM CHINESE-MADE 395 "BIG BORE" KIT, WHICH SHOULD TAKE MY WORK SAW FROM 94CC 100CC'S, BUT THE TRANSFERS ARE SO ANEMIC IT'S GOING TO TAKE A LOT OF WORK TO GET IT BREATHING. HAVE TO WAIT TILL AFTER XMAS...I'M THINKING ABOUT ROPE AND GRIT POWDER TO SHINE THE UPPERS USING A DRILL MOTOR WITH A SMALL PULLEY, BUT I'M CRAZY-IT'S JUST TOO MUCH FUN, AIN'T IT?

To be honest you didnt show us how to do nothing . We just warched you do one

Love to see ms460!!!

Nice job joe. Clean effective work

Nice Cincinnati behind you.

. More hobby/race stuff like putting a bigger carb on that g444 saw you built. Taking the cheaper stuff further out than you would do with a name brand saw to see where the limits are. I would like to see a dyno of the individual parts of a saw like dyno, remove air filter, dyno, shave carb blades, dyno, muffler mod , dyno , remove choke, dyno. The 372 would be a good saw for that demo:)

Thank you!

I want to see one geared towards more torque for cutting hardwoods like Black Locust. Please do a 359 or McCulloch 10-10 or both Joe.

I have noticed on many of these builds the torque gain trails the hp gain.

Great information and thanks for sharing. How do you work out how much material to remove and where for different model saws and cylinders?

It would be good if you could show and explain the porting difference between a low torque grunt saw and a hi power reving saw I think

Joe it would be really cool to see a junk cylinder cut in half where it’s easier to see exactly what you are referring to as far as the angle of the transfers.

Thanks so much!!

To bad we didn’t get to see anything, I think it it was already done 😂

Nice gains, yes show us everything lol

it would be nice to see husqvarna 61 with 272 top end ported and what you can get out of one.

As good as it gets! That thing should be hitting 10hp once broken in!

Just starts drilling holes thru 😅 me

Love the vid, what rpm do you run your cutter at when porting?

I would like to see hp difference from 16to1 to 32to1 to 50to1 I read some we're more oil will give more hp by filling all the Defects in cylinder to give u more compression

Thanks Joe! Do you know if a 7x12 desktop/mini metal lathe has enough clearance to turn that cylinder?

Hi Joe great vids just wondering what brand are your porting tools and who did you buy them from thanks

The real question is, do you save all the Aluminum dust/shavings to make homamade Tannerite?

Would love to have you port my 395xp!

it would be awesome if you can get a camera on your safety glasses so we can see your POV while doing the work.

super fast!

Sorry meant to add a milling saw to the first part of my question

Tips and tricks porting a 371xp/372xp

Make a torque monster for chainsaw mill

YYYYEEEESSSSSS!

where did you find that right angle cutter?

How about porting a Stihl MS170 MS180 MS171 or MS181 everyone has one so it would probably be a very popular build.

Where did you get the Angel cutter?

I think a cool video would be to see how high in the rpm’s you can get the horsepower. And vise versa.

Do they sell pre ported chainsaw cylinders

On the 395 what was shooting for number

Wait we're not supposed to eat the screws and paste?

Stock dyno->Muffler Mod Dyno-> Muffler mod + ported dyno. ? Thanks!

Who can i buy ported cylinders for chainswas from?

So weird how everyone is so scared of the intake. I modify the shit out of my intakes

Just wondering cuz iv never seen anyone do it before , but have you ever arched an exhaust port the opposite way? Would make some good content

Joe if you were to use a saw albeit 395 or 660 would you port for torque rather than chainspeed as milling causes alot of heat?

Man thats great! Can you tell me what kind of cutting bits do you use? cheap ones or some like Pferd or so? Greetings from Germany

How about doing a Husqvarna 55

🤘🏻

👍👍👍👍

What's your take on the type of porting you would perform with 066 stihl combining the use of 3/8 10T and advancing the timing 8-10 degrees with a barkbox and improved air intake mod

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

Can you show how to port without having a timing wheel to mark the grinding sections on the cylinder wall? Hopefully it's not impossible and can be done with an acknowledgement of a considerable risk to engine performance but as you say if we're practicing on a cheap asian saw and not a genuine 3120XP the risk is somewhat considerably more acceptable * Good vid 👍

do a 141 husqvarna

did you widen both sides of the lower transfers or just the exhaust side?

I understand taking material off the floor of the intake and the roof of the exhaust to change timing numbers. but what about the roof of the intake and floor of the exhaust how do you determine what to grind on them?

❤️‍🔥🇺🇸

Hello from Brazil my friend Can you try to help me, please? My chainsaw(chinese) has a problem with excessive compression. But when I remove the spark plug the piston rotates normally. Even placing your finger in thze spark plug opening causes the piston to become extremely compressed again. Yesterday I installed a completely new cylinder and piston, but the problem remains. I changed the spark plug, removed the carburetor and exhaust fan, and still the problem remains. Do you have any idea what it could be? Can I send you a video showing the problem? I have been seeking help with this mystery on various social media channels, Instagram, KZfaq, but no one has been able to guess what could be causing the problem.

Where’s the cauldron performance? Benny hill music ?

Why texture on the intake? And how do you know where to mark it to know how far to cut?

💪😁👍

🍺😜👍

It’s almost as if the manufacturer doesn’t know how to build a cylinder 🎉

What is your break in technique after porting?

👍👍👍👍🇺🇸🇺🇸🇺🇸🇺🇸🙏🙏🙏🙏

What could I do to my 661 with out machine work? I’ve ported a few saws so I’m aware of port shape. Chamfer. And keeping aware of of where the ring pin is etc. I want to go in and get some gains. I am going to send out my 500i and get fully worked on. My 661 is my falling saw only running a 36”- 42” bars. Thanks. Anyone can chime in.

Hey guys. I'm a total newbie in saw porting and wanted to ask if somebody could explain to me what is the purpouse of "heart" shaped intakes? What effect does it give and in which situations shoud I use it?