Echo CS590 Transfers and Intake Porting!!!

[@nicksanders9140]

Thanks for the echo videos. I like my echos the are torque machines for what they are and they don't break the bank as bad along with the fact that they just last if you take care of them.

[@johnsonlong1272]

Seeing before and after shots of your porting never gets old. By the way a degree wheel mounted on a string trimmer engine on my bench has raised many questions from everyone stops by lol.

[@aaronpowell4885]

Beautiful work and explanation! Got me wanting to get a 590 to play with 🙂

[@shartne]

Awesome made some venturis to speed up the air flow can not wait to see the results.

[@metalted6128]

Nice shovel work, I work construction for many years, we locked up our tools every night, but never our shovels. Never, ever has a shovel been stolen!! Imagine that!! Lol

[@tinmanssaws]

Hahaha thats so funny

[@bennyblanko3]

Oh, and I said last question, but have one more. I think the stock carb has that enrichner (or whatever it is called) circuit to dump fuel if the rpm gets too high. I could be wrong about that. But, if it does, and you can get to it and plug it - you should do a video of the mod.

[@themanchannel8761]

I'm really enjoying this build, Tinman. I'll be doing some port work to my CS-590 soon. I can't wait to see the improvement in performance.

[@tinmanssaws]

Morning, I cant wait to run tbis saw again and see how it turned out

[@donnywalker4691]

You fast shoveling to fast to be a city worker

[@SOHN32]

Nice hair cut we must have the same barber.

[@gumwap1]

When I ported my 600P, I thinned and sharped the divider between the transfers as well, seems there's no reason not to. certainly didn't hurt it. I also found that 1 a 1/8" diameter bit was better for those tight spaces and for going nice and slow with small bites

[@cliffpalermo]

Yes 2nd part out already! Thanks Tinman and more please!

[@jeffkenyon7084]

I hope when it rains and the dirt expands your foundation doesn't give away

[@ianwilds3139]

Probably #57 stone then some top soil would be better so water can find it's way down to the perimeter drain tile.

[@larrybollinger7319]

Great job as usual.

[@justinweaver8787]

Hope it will be a mean mochine buddy i just got a super pro 81 from the bellhopper today im excited to run it i cant wait. My 1st sp81 an my 1st ported saw.

[@steelcityperformancesaws]

crickets everywhere

[@dollar7816]

Wow thx Tiin man .. going to try this on a 491

[@dollar7816]

Glad I saw this Tinman, took off my 491 muffler, the exhaust port has a lip around the inside about 1/32 ? Looks like the cnc didn’t finish the cutting ? Or maybe it’s an EPA thing on emissions ? I took the head off and opened up the inside of the exhaust port and now the saw runs awesome ! Oh plus a muffler mod .. thx again Tinman

[@k-techcowboy4260]

You want some clay? Come on to Oklahoma. I'll get you some bright orange clay and that won't happen again friend.

[@friedbologna8331]

Looks finer then frog hair split 3ways...

[@AUXdrone]

Tinman, you’re right about velocity…but as velocity increases, pressure decreases. It’s all about volume, the volume will be the same given the pressure is the same but the velocity will be higher. Now if you’re increasing the transfer sizing all the way through that will increase the total volume that can be delivered but your tapers are still constricting flow and therefore increasing velocity. Keep in mind that pressure moves from high to low…the universe blows, it never sucks. Lol. Considering that, how would you describe your porting job and it’s effects on flow and maintaining the atomization of the fuel/air mix, the same idea you have for the rough intake?

[@whattheydonttellu2423]

I think a little more Bernoulli's principle explanation might help (source pasted below): "The relationship between flow, velocity, and pressure can be explained using Bernoulli’s principle. Bernoulli’s equation states mathematically that if a fluid is flowing through a tube and the tube diameter decreases, then the velocity of the fluid increases, the pressure decreases, and the mass flow (and therefore volumetric flow) remains constant so long as the air density is constant. This principle holds true for gases so long as the gas is moving far below the speed of sound and does not vary in temperature (as this would cause an increase in volume)." www.stanmech.com/articles/flow-velocity-and-pressure If I'm understanding this right, the reverse should be true as well, if Tinman increased the diameter of one section and Bernoulli seems to indicate that increased volumetric flow would not be lost on the decreased diameter farther up.

[@andyjones6361]

When it gets wet again and expands is it going to shove your basement in?

[@shaner67]

Hey Tinmaaaaan, how does that foredom feel on the old sausage fingers? I find my dremel vibrates a bit too much for comfort on arthritic tradesmen hands. Looks like the transfer opened up should give that saw a bit more grunt. As always, be safe and thanks for the great content.. SLANT'E

[@SOHN32]

Surprised didn't go up house with loader buddy . Tip your bucket a little.

[@tinmanssaws]

Morning buddy. Make too many ruts that way.

[@jensenwilliam5434]

Thank you!!!

[@pipetobaccoandfood3809]

Tinman, sorry....I know this question has nothing to do with this video but I am in need of some info. Was the 1996 Husky 365 Special only 65cc's ? Thanks friend.

[@tinmanssaws]

Morning, All 365 specials were 65cc, 365 xtorqs are 72cc

[@pipetobaccoandfood3809]

@@tinmanssaws is yours an x torq?

[@tinmanssaws]

@@pipetobaccoandfood3809 mines an old 365 special..65cc

[@bennyblanko3]

Thanks, and nice work! Saw looks stronger than before. How much would you say it picked up with the porting vs just muffler mod? Another 15%? I'm sure you will do a full run vid once it gets a little more broken in, and turn it up a little more. Or, is that carb and ignition going to keep it a little down? Looks plenty torque anyway at rpm where most people cut. And, last question. I don't want to buy the ignition and carb. You think the old ignition and carb will keep the rpm too low, even with muffler mod and mild porting? I mean, really - it is only a second or two off a decent saw (562) to begin with, so probably pointless for me to mod, since it is a nice, easy starting work saw already.

[@WildAcresFarms]

Most quality pro saws have more than enough carb to support a ported cylinder. (Compared to Stihl & Husky Echo uses a smaller carb.) Porting your saw shuod net a gain of around 20-30% if you do the job right, get the muffler open, and advance the timing. My 71cc Stihl 044 absolutely felt like someone turbocharged it. Especially when running a long bar, which is all that lives on it now.

[@calebwillhelm2635]

went with unlimited coil. and the carb was big enough but the adjustment on the high side was limited

[@pm270100]

SU carb on this one

[@lumberjacksons4468]

Hey bud I’m doing a deal with iron horse and I need a husqvarna 550xp and a Stihl ms 400c ported and an echo 355t ported for my channel if you’re willing to talk I’m here or on WhatsApp

[@donnywalker4691]

The foot peddle is awesome hey nothing like control

[@retiredwelder]

I here ya bud. Always something. I realized a few days ago my fuel line rusted and has a small pinhole on my truck. I went to the Chevy dealer and they told me it was a dis continued part. I said Jesus it’s a 2002 not a 1972. But I found one online and I couldn’t believe it I got it today. Two days after I ordered it. So that’s my project tomorrow. Gotta drop the tank though. (Or cut an access hole in the bed hehe). Either way my uncle has a lift so that helps. Hey bud as always WORK SAFE 😎😎🇨🇦🇺🇸

[@thomaslindroos1667]

How can anything be discontinued for a car made in 02?

[@codybrown3946]

Take the bed off, few bolts unplug the brake lights boom. Slide it back on some sawhorses

[@retiredwelder]

@@thomaslindroos1667 that’s exactly what I said!! They could get the line from the filter to the front. But not the filter to the tank. And this is a big Chevrolet dealership. Napa didn’t even list it. Motor supply didn’t list it. I found one online.

[@johnsonlong1272]

@@retiredwelder I find it very common that they discontinued parts after about 6 years on a lot of general motor products. Fuel lines though I never monkey with putting steel lines back on I switched them to plastic most part stores have all the adaptersfor all the vehicles whether it be a push to connect or whatevercan you just put the plastic line on it fitting and run it.as soon as a fuel line develops a rust hole on a vehicle I replace all the fuel lines with plastic. You can buy a couple rolls of plastic and a whole bunch of connectors for various vehicles for the amount that you pay for one factory steel line from GM.

[@toyotatundra0455]

I just saw a couple of your videos porting an Echo CS590. I have an Echo CS600P and I'"d like to use it in a Alaskan sawmill. Is the muffler modification capable of making enough power to run a 28" bar? Thank you.

[@chapsmaketory3960]

I like watching how the water flows thru my transfers when Im washing my cylinders in the sink..good way to check flow.. good stuff tinman!!

[@ikesquirrel]

Me too. I love to see the water flow through. The before and after.....wow

[@simpleman4224]

I’m thinking that 590 is gonna be right sporty! 👍👍👍👍🇺🇸🇺🇸🇺🇸🇺🇸🙏🙏🙏🙏

[@randyforestier7256]

From when I first start watching you to now we have all come long way and good info to help us . I didn't commit to much at first because I can't spell to good and leave word out.

[@BourbonDrinker]

Wow, I have never seen soil pull away from a foundation like that. Great time to seal the outside of your foundation.

[@ChevyGuy70]

Awesome video. Always very clean work😎👍

[@johnarnettsways.8758]

Great vid. Very informative. God bless.

[@choresoflife]

Super thanks for sharing

[@mikeremski2102]

That saw didn't slow down at all in the wood did it. At least, not to my ears. Wow.

[@SonOfLiberty1984]

P.S. your intake port texture makes my ❤ smile. 😉

[@andrewslagle1974]

Tinman thanx for another great video .I just got a echo 620pw and i will try my hand at porting it and muffler mod as per your instruction and design.I have ported many automotive heads and intakes but never any saw work .I have learned so much from you and your videos !

[@k-techcowboy4260]

Most of which shouldn't be followed

[@kroOutdoors]

Good to see Gehl back on the channel.

[@andybecker2693]

One of the things that I don’t understand on some of the new Husky saws are the case stuffers. Why would you decrease the case volume unless that creates higher velocity through the transfer caps.

[@andybecker2693]

I think that heat was getting to you. At the end of the vid you said Echo 670, lol!

[@tinmanssaws]

Lower case volume creates more bottom end grunt, pair that with large transfers and you can gain some top end. Thats the therory anyway.