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.
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.
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 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.
@@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.
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.
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 !
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.
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
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
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.
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
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.
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?
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.
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
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.
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.
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.
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.
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
