I got a QV8000 version from our firehouse that was dropped into water while running about 15?17? Years ago and I’ve been playing with the CS and QV 8000’s ever since… it was my 36” bar saw for years in my little company… the QV 8000 cylinder is a totally different animal…it’s the echo engineering staffs “factory ported version”. It’s got maybe 25% or 30% more zip by compression chamber cut and higher exhaust roof… quad ports over duel… 👍😁😉
The adjustable automatic oiler plus manual is why I bought a CS-680. I use the 27” bar on big logs. The first saw I used was a Mac 6 10 (the 20” bar and chain fit the Echo and are much cheaper to buy at the box store) The 6 10 had an auto and manual oiler.
I was thinking about that 52mm over 38 echo’s cylinder and I’m wondering what would happen if you strapped that pipe that you got for the big bore 372… 52x36! On that echo??? You might be able to make you a saw side plate if you have a welder? Be curious to see if it wouldn’t work??? Yeah man… husky needs to be tweaked… d176 there’s some Poulan’s or Mac’s that shared that mount back in the day? The 800P had a nice big dome top piston… with the regular flat top or LRB piston would loose a smig of power…
The 590, 600, 620, 670, and 800P should all be D176 bar mount pattern just like the older Echo's, Poulan Counter-Vibe and older saws like the 306 and 245, McCulloch 10-10 through the 9 various 82 cc saw models and Pro Mac 1000 (Partner P100 Super rebadged for them) and lastly Tanaka.
Yes they are however the people I buy my echos from said that a husky big bar will work on them with a little bIt of finagling involving either an adapter or extending the oiler hole and the chain may run a little loose on them , also said that the husky mount wouldn’t hurt it any and if it’s what you got use it
Be careful cutting while the rubber plug for the carb screws is out.. It will eat sawdust through the intake... I'm assuming your saw is one of the older models with the plug. Love the old echos!
I bought a cs-8000 brand new and straight out the box it was shit. It had some sort of a vent problem or something. I had it at the dealer but you had to run the saw 10mins or a 1/4 tank of gas before it would cut off. I could go back to it after 20 mins and it would start rite back . Echo dealer put new cylinder and piston on it and said it was fixed and that was only after taking it to them about 10 times and many arguments later. I love the cs-670 and 680s but totally got screwed on the cs8000. I still have they saw just collecting dust
Being that the 7310 is based off of the shindaiwa 757 it makes me wonder if echo will ever reintroduce their 80cc class saw by turning the 800 into something like a 7910?😏 a jumbo 7310 that would be freaking awesome!
I had a cs8000. Same saw as the 800p just the older version. It was one of the few saws I would say needed a port job. Dang thing would get out cut regularly by my 268 Husqvarna.
I could see that, especially in smaller wood. The huskies are renowned for chain speed. This saw is 100% a torque saw with lower chain speed. Id be surprised if it pulls over 8,500 (peak power) in the wood where the 268 peaks closer to 9,500 ish. Slap a 32" or 36" bar on both though and tell me which one is happier about it and it comes into its own. The husky might still be faster but it would need babying.
@@bryantitus6634 ya I sold the thing cause I personally thought it was a turd. Now I own a 394xp with 395 top end and a 298xp both of which would take the 8000 lunch money.
@@imperfectcuts7028 a 395 and 298 would likely take a ported 800/8000s lunch money unless it was ported very well. But it'd be right there with it at least.
@@imperfectcuts7028 stock though, they don't hold a candle to them. My 394 will never get replaced by even a wild 800p. But that doesn't necessarily make the 800/8000 turds per say. They pull long bars pretty well and are built to last anything short of nuclear warfare. But they are unimpressive saws in the power department.
@@bryantitus6634 ya my 298xp is the strongest saw I have run to date. I plan on either taking my 394 set of cases back to a true 394 or finding a running example and comparing them. I also have a 740 mcculloch that I will be getting running and comparing to both my 298 and my 395
The cs800 or 8000 cylinder is pretty weak…the transfer’s are small …. On the QV-8000. Fire rescue saw they factory ported the transfers are much bigger and it’s a quad port design and they cut the squish band down to get a little better combustion chamber… they are then a 13,500 pulling saw… they are 52mm over 38… so it’s a big bore 372 with more stroke… you really want to port it so you can let it get out of it’s own way… they will pull a 36”… you need to cut the combustion chamber and deck your cylinder… raise the exhaust port… they are fantastic with an expansion chamber pipe…
@Yukon Freightworks Canoe Manzo I have several and have the two different cylinder’s to see them side by side… the QV is a Quad not dual transfer port design and they cut down the squish band to boost the compression numbers by reducing their combustion chamber size already… the QV cylinder is leaps and bounds better than the CS cylinder… I’ve not used or measured the little red barn aftermarket piston yet but that’s my next step… as the regular domed 800 piston’s are almost a hundred bucks apiece so I’ve been looking at an alternative angle as I have two saw’s that are going to need a new piston kit… they aren’t race car type designs but at 52mm over a 37.5 or something like that to get those 80cc’s they definitely have the torque needed to pull a 32 or 36” bar with skip tooth chain for the faster file up of it’s cutter’s… 36” with skipper is pretty much perfect and they still have the additional oiler on the thumb… so if you are cutting some big stuff…you can pop your thumb oiler three or four strokes while raking your bar in and out and you’ll clear all those chips out of your kurf and oil up your chain good so you can continue your cutting… I have used the QV with a 36 and skip for 25 years as my biggest saw… for a long time until I started building saw’s… several 5-6’ pin oak or other monsters have been busted into manageable chunks by my two fat-girls… they don’t cut as fast as some other saw’s but they do get great fuel mileage and neither one required anything other than just routine maintenance… tapping the air filter system out and adding more mixture 40:1 or 32:1 12,200… for about 20 years plus… and they were saw’s that I rebuilt after they had done their fire rescue duty and been dropped into a flooded basement and one was drowned in a flood extraction… I’d always strip down out of my gear and dive in to collect the equipment…. But they had a law or something like that so they both ended up being given to me from the house for additional work on projects or something else like that… we had an old brush truck that I attacked in north Florida and ripped the heads off it to get it going again… there’s no funds in most small fire houses so if they have a piece of equipment like that that would be a real plus to have running hopefully there’s a guy who will jump in and get it done! 😂😂😂😂😉👍💪🇺🇸🪓. Hard work is the best way to a good clear and clean conscious and a good nights sleep! Any time I ever hear anyone complaining that they aren’t sleeping very well… I highly recommend that they get an axe and start with splitting just a cord a day… after you hit your shower and eat dinner… usually by about 8pm you’re ready to sleep like a baby!!!! LMFFAO! It’s the best exercise in the world… splitting and stacking… then when it’s really cold out in January and February it’s extremely rewarding to toss 3-4 chunks into a stove and get a couple hours of good heat from your work!!!
@Yukon Freightworks Canoe Manzo let me know exactly what you get for your numbers and reading… they will be close… I’ve not had an 800 cylinder in hand to physically measure the differences… just the 8000’s CS to QV… that’s what I base my CS port work on roughly… them being just two big transfers they get a little different shape and I open them up some… 😉👍. They are definitely some battle axe type work saw’s that will run day in and day out for several decades with some good love in their maintenance with keeping their fins blown clean and whatnot… and they have good torque qualities… I love my old echo’s 😁👍
Hey buddy.... I'm new here. I just came across your channel and I did subscribe. I see your a experienced chainsaw guy and would love your opinion. I own a property in central nj and need a quality saw for cutting some firewood and cleaning up dead falls after a storm. Ive had 2 CHEAP SAWS that I'm done with and like your opinion on a quality saw for 5 or 600.... thanks for your help
@@Doc-Cole_Trickle-of-Chainsaws funny you ask now because I just started looking again. I been useing my small ego chainsaw but want a good gasoline saw. The trouble is that I can't use a 16lb saw. Having big problems with my elbow and shoulder
@@Doc-Cole_Trickle-of-Chainsaws yea definitely not bigger then that, I only need 14 -18 inch bar to be honest. I don't have big wood to cut. Just a lot of it. Again with my injuries I can't get crazy but I do want a quality/reliable saw 40-60cc
@@novicelumberjack Thanks; it is the QV with a Husqvarna bar on it, it is the red color like yours which means it is the older model. I was wondering if it has the same power as yours being the rescue model. do you know if they are different? it looks good. i will let you know.
@@novicelumberjack i bought it! $250 for it. It is in great shape; no scoring; great compression' i opened up the exhaust and cleaned the carbon out of the muffler and exhaust port and did a general removal of all the mung. Yes; it is heavy, but I can push it into a log and it won't stall; very powerful. I want to give it the dyno Joe treatment to make it really pull.
The 670 and 800 seem to have a good reputation of being BIG gainers when ported. If maintained they are RIDICULOUSLY overbuilt saws. Probably last forever. But being sold in sizes want to target production guys, they are diesel like and slow but will pull far more bar than similar sized saws. They won't beat anything but won't complain when they do it like similar saws might.
Had a 670 with a 24” bar. Not my favorite saw but a good saw. Gotta say my favorite is my freshly built 036 but the 064 I just got is coming in at a close second. I like to think of these echos as the old straight sixes. Not fast, but reliable and tough
