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View Full Version : most powerful backpack blower??


baddboygeorge
09-25-2005, 01:24 PM
i use the 8000 series redmax an they are awesome . i was in a stihl dealer the other day an he told me i needed to upgrade blowers to the br600 he said it had more power than the redmaxs . is this true let me know thanks george

mcwlandscaping
09-25-2005, 02:03 PM
Do a search, there have been tons of comparison threads between the two blowers!

Kelly's Landscaping
09-25-2005, 02:12 PM
Yes it is true and shindawa just put out the new 4-mix backpack with even higher stats. Power is not everything weight and comfort matter a lot more to me when I have one on for 5-8 hours per day in fall clean up season and that can last 5-8 weeks. In that category its not even close stihl wins hands down but if youíre into pain by all means try the other ones.

kc2006
09-25-2005, 02:13 PM
I'd smack the dealer upside the head for wanting me to "upgrade" just because something more powerful came out.

From the specs yes the 600 is more powerful though.

grass_cuttin_fool
09-25-2005, 02:28 PM
I prefer stihl equipment over others, but I think both are good from what I here. I think you would loose more money by selling or trading then you would see in performance. In my opinion I would wait and when the time comes maybe purchase a stihl and compare them.

stevesmowing
09-25-2005, 03:38 PM
Yes it is true and shindawa just put out the new 4-mix backpack with even higher stats. Power is not everything weight and comfort matter a lot more to me when I have one on for 5-8 hours per day in fall clean up season and that can last 5-8 weeks. In that category its not even close stihl wins hands down but if youíre into pain by all means try the other ones.

any more info on this shindaiwa? I heard in the spring maybe an 82cc engine.

kc2006
09-25-2005, 04:04 PM
do a google search for the eb8510, its 79.9cc i think. says something like 953cfm, somewhere around there.

I emailed shind to get the cfm at the pipe and when they'll be available.

Richard Martin
09-25-2005, 05:14 PM
Until Shindaiwa releases the specs on their new blower it can not be assumed that those specs are with the tube. As has been pointed out numerous times the tube on the Shindaiwa would need to be considerably larger than it appears to be in order to flow 945 CFM at 203 MPH.

Kelly's Landscaping
09-25-2005, 08:36 PM
Had one on my back yesterday did not have it on the dealer was there after hours helping me I was not there to buy a new backpack. So I am not certain of its output but it was noticeable heavier then the new stihl br600 and she stuck out in the back much further just like the redmax 8000.

kc2006
09-25-2005, 08:46 PM
As has been pointed out numerous times the tube on the Shindaiwa would need to be considerably larger than it appears to be in order to flow 945 CFM at 203 MPH.

The tube doesn't have that big a play in the factor. Its just like turbochargers, the larger the housing the more cfm its going to pump. For example, the br600 making 1012cfm at housing and 712 at the pipe is a difference of 300 cfm. The 8000 makes 943 at the housing and 688 i believe at the pipe a difference of 255 cfm. The pipe is not what is effecting the out put of the blower, in fact the pipe on the remax is more effiecent because as it tapers down it creates more pressure to keep the flow up (just like in a stepped race exhaust).

I looked at pictures of the shind and I'm almost positive it will be 945 at the housing, the housing design is way smaller then the stihls and it looks to be the same shape as the shind. The stihls advantage is the housing, they use a 63 or 68cc engine only but that housing is so effiecent, I personally don't like the tube on the stihl and think its its downfall, that blower could put out probably upper 700cfm's with a good stepped tube. But yea I agree, the shind will be about the same as the 8000 only.

dcplace2004
09-26-2005, 03:32 AM
but as a fluid or gas passes through a pipe that narrows or widens, the velocity and pressure of the fluid vary. As the pipe narrows, the fluid flows more quickly. Surprisingly, Bernoulli's Principle tells us that as the fluid flows more quickly through the narrow sections, the pressure actually decreases rather than increases!

Richard Martin
09-26-2005, 04:10 AM
The tube doesn't have that big a play in the factor. Its just like turbochargers, the larger the housing the more cfm its going to pump. For example, the br600 making 1012cfm at housing and 712 at the pipe is a difference of 300 cfm. The 8000 makes 943 at the housing and 688 i believe at the pipe a difference of 255 cfm. The pipe is not what is effecting the out put of the blower, in fact the pipe on the remax is more effiecent because as it tapers down it creates more pressure to keep the flow up (just like in a stepped race exhaust).

I feel as though the only way the Shindy can get more CFM through that 2-3/4 to 3" tube is to compress the air much like a turbo does. I really feel as though Stihl is pushing the limits about as far as they can go given the weight, size, horsepower and heat limitations.

kc2006
09-26-2005, 12:07 PM
If you look at the stihl, the turbine housing is much bigger then the shind/redmax, thats where its at. If they would make the impeller like a turbo as you said richard then we'd be talking a few thousand cfm's. That would be pretty nice :D I've never taken apart a blower but I'm guessing the blades are pretty flat? If they were swirled then it would probably do a heck of alot more cfm.

I get too excited about turbo's :waving:
http://img.photobucket.com/albums/v643/mean83sc/100_5411.jpg

dcplace2004
09-26-2005, 05:20 PM
but it is the best "well rounded" blower on the market...I do think that some things could be looked at such as a stepped tube instead of a straight tube with taper at the end...perhaps stihl already looked at this and chose not to because of certain reasons...There is going to come a time where the CFM's at the tube will reach a zenith as far as comfort and practicality goes...one almost has to lean into the tube already...going too high could be more of a problem...redmax does need to enclose the casing opening and put a grounding cord for anti shock--for the money the machine costs they SHOULD...

Lawnworks
09-26-2005, 08:42 PM
Redmax is more powerful, but I am buying the br600.

locutus
09-26-2005, 10:29 PM
A nice combination of power in a relatively compact design is the Redmax ebz7001rh. The larger models are just too cumbersome for my needs.

Richard Martin
09-27-2005, 04:47 AM
I'm not seeing where the Redmax is more powerful than the Stihl. Can someone explain this to me? I do know that it blows 2 mph faster but the Stihl easily beats it on CFM both with and without the tube. As far as real world useage goes I don't think anyone has had enough leaves yet to really test the BR600.

nitrotim
09-27-2005, 03:01 PM
A friend of mine just bought the new SHINDAIWA 8510 blower, after the using it for a while he smelled something funny and realized the exhaust burnt the plastic surrounding the muffler. Our dealer took a picture of it and sent it off to SHINDAIWA. Probably be a recall on them before the really start showing up in showrooms.

Howie's Lawn Care
09-27-2005, 04:04 PM
Shindaiwa EB630RT

I bought it in July, but haven't got much use out of it yet. It figures they release this new beast so soon after I bought my new one. Oh well, atleast everything will be color coordinated red instead of that dark blue crap. Take a look anyone who hasn't seen it.

http://www.greenmediaonline.com/uploads/productspotlight/050912_spotlight_5.asp

dbrockner
10-03-2005, 05:03 PM
Specs Mean Nothing, First Of All There Is No Governing Body On Cfm And Air Speed Specs. Some Manufacturers Measure At The Elbow, Some Measure At The End Of The Tube. They Can Basically Put Down Any One They Want.
Also, You Need To Have The Right Combination Of Air Speed And Volume Or You May Get Too Much Turbelence, Which Does No One Any Good.
The Way To Check The Power Of A Blower Is To Put One On Your Back And Go Find A Pile Leaves>>>>

John Gamba
10-03-2005, 05:05 PM
Specs Mean Nothing, First Of All There Is No Governing Body On Cfm And Air Speed Specs. Some Manufacturers Measure At The Elbow, Some Measure At The End Of The Tube. They Can Basically Put Down Any One They Want.
Also, You Need To Have The Right Combination Of Air Speed And Volume Or You May Get Too Much Turbelence, Which Does No One Any Good.
The Way To Check The Power Of A Blower Is To Put One On Your Back And Go Find A Pile Leaves>>>>



Very well put :D

Richard Martin
10-03-2005, 05:28 PM
Specs Mean Nothing, First Of All There Is No Governing Body On Cfm And Air Speed Specs. Some Manufacturers Measure At The Elbow, Some Measure At The End Of The Tube. They Can Basically Put Down Any One They Want.
Also, You Need To Have The Right Combination Of Air Speed And Volume Or You May Get Too Much Turbelence, Which Does No One Any Good.
The Way To Check The Power Of A Blower Is To Put One On Your Back And Go Find A Pile Leaves>>>>

Yeah, we kinda already knew that, but to admit it would take all of the fun out of debating it here at Lawnsite. Take all of the debate away and make sure every post is factual and Sean would get mighty lonely here in a hurry.

Jeds_Lawn_Care
04-30-2006, 11:31 PM
Shindawa just put out the new 4-mix backpack with even higher stats.

Acctualy its a 2 stroke.

But it has 4 stroke technology.

WHATEVER IN THE HECK THAT MEANS???

LawnInOrder
04-30-2006, 11:35 PM
buy a ebz8000 and be done with it

Richard Martin
05-01-2006, 03:57 AM
Acctualy its a 2 stroke.

But it has 4 stroke technology.

WHATEVER IN THE HECK THAT MEANS???

You have it backwards. The C-4 is a true 4 stroke that uses some of the 2 stroke's characteristics.

In a 2 stroke the piston goes up and down 1 time to make power. That is 2 strokes, once up, once down. A 4 stroke piston goes up and down 2 times to make power.

The Honda, Stihl and Shindawa 4 stroke engines all go up and down 2 times. They are all 4 stroke engines. It's just that the Stihl and Shindaiwa use a 2 stroke type of gas/oil mix for lubrication and that's where the confusion comes in.

Falcon2006
05-26-2006, 11:45 AM
The Shindaiwa EB8510 is a better blower than the Redmax 8000. I ran the two side by side. The Shindaiwa moved debris further and was quieter. Although longevity of the new Shindaiwa is yet to be seen. If i get another blower it will be the Shindaiwa EB8510

Lawnworks
05-27-2006, 07:00 PM
I like our echo 751s, we had another stihl br600 drop a valve.... that makes 3 times. Also another handle has broken off... 2 of 3 are broke.

clay duncan
05-27-2006, 07:42 PM
I like our echo 751s, we had another stihl br600 drop a valve.... that makes 3 times. Also another handle has broken off... 2 of 3 are broke.

i like stihl equipment and i thought i would give the br600 a try. i believe my echo 651 outblows it hands down. the 600 is lighter and quieter though. for the money the 651 and 751 are hard to beat.

greenscapes,inc.
05-27-2006, 08:46 PM
Shindaiwa EB 630. Great blower, I have 6 of them and I have yet to find a better blower. I plan on trying the new shindaiwa 4 stroke when I can get one.

traman
05-27-2006, 09:07 PM
what some of these company's really need to make is a blower with a true converter in the housing ,not turbo charging the engine, but more like a torque converter in a transmission ,as engine speed builds up the converter fins pitch more to create more force and speed ,the possibility's would be endless with all the technology thats out there

Olylawnboy
05-28-2006, 12:12 AM
traman, that's really a cool idea! I have wondered about a two or three speed trany for the blower fan.

drmiller100
05-28-2006, 01:20 PM
so, the shind won't keep up with an echo?

I own an echo and a redmax 7000, and the echo doesn't dream of keeping up with the redmax 7000.
let alone the 8000.

Lawnworks
05-28-2006, 09:54 PM
an echo 651/751 won't keep up w/ a redmax 7000? That is hard to believe.

drmiller100
05-28-2006, 11:53 PM
mine sure doesn't. the exhaust screen thingy fell out. jetted right. runs good, just doesn't have as much blow as the redmax.

clay duncan
05-29-2006, 12:28 AM
i have used both redmax 7000 and echo 651 and i think they are equal. the price of the echo is what makes it so appealing. i am not a big echo fan but the 651 and 751 offer alot of blow for the money. more power than the stihl br600.

milo
05-29-2006, 12:43 AM
my echo 651 blower will stomp a redmax 7000. my friend bought one last season and my echo is stronger for sure.
i also know i can blow a brick down a driveway with it. it is the strongest blower i have ever used by far..

ThirdDay
05-29-2006, 01:05 AM
my echo 651 blower will stomp a redmax 7000. my friend bought one last season and my echo is stronger for sure.
i also know i can blow a brick down a driveway with it. it is the strongest blower i have ever used by far..

I haved the Echo PB-750's and they blow the RedMax 7000's away big time. It's not even close!

I like the huge air filter too on the PB-750. These bigger blowers go through filters quckly but the bigger PB-750 filter last a long time.

Daner
05-29-2006, 09:50 AM
I can only conpare the shiNdy to the br 600s (what we run) The 600,s have alot more power than the oud stuff that has been out there for yrs...But that new shindy Blue Kicks A$$$ BIG TIME

lowballer17
05-29-2006, 02:24 PM
The echo 651 rocks. Save your cash, get the echo. Redmax is a waste of $ for less power

drmiller100
05-29-2006, 03:59 PM
i'll trade you my echo 650 for a redmax 7000.

ed2hess
05-29-2006, 06:02 PM
i'll trade you my echo 650 for a redmax 7000.
Might be fine in cool climate but not in hot climate....still no carb adjustments on Redmax correct?

ThirdDay
05-29-2006, 06:11 PM
i'll trade you my echo 650 for a redmax 7000.

There must be something wrong with your Echo blower. How long have you had it? Normally the PB-650/750 will blow the Red Max 7001 away big time.

Have you had a dealer check it out??

eastham
05-29-2006, 07:48 PM
My Echo PB-750 is the most powerful. I've used every blower and the Echo PB-750 is still the most powerful. :weightlifter:

ripple
05-29-2006, 10:05 PM
Echo has a pretty powerful unit.....I guess if need be you can add some nitros....or get a turbo or something...

drmiller100
05-30-2006, 02:15 AM
so the 650 and 750 are the same thing, except air cleaners, right?

offer stands. echo was awesome until i got the redmax.

Jeds_Lawn_Care
06-07-2006, 11:44 PM
You have it backwards. The C-4 is a true 4 stroke that uses some of the 2 stroke's characteristics.

In a 2 stroke the piston goes up and down 1 time to make power. That is 2 strokes, once up, once down. A 4 stroke piston goes up and down 2 times to make power.

The Honda, Stihl and Shindawa 4 stroke engines all go up and down 2 times. They are all 4 stroke engines. It's just that the Stihl and Shindaiwa use a 2 stroke type of gas/oil mix for lubrication and that's where the confusion comes in.

Man, thanks for that info! I never did understand that.

Lawnworks
06-28-2006, 11:21 PM
My third Stihl br600 just locked up yesterday... this will be the 4th major engine failure on 3 blowers(all of my br600s). I am going to be in trouble after the warranty runs out on these things!!!

TNT Lawncare
06-28-2006, 11:23 PM
I like my Echo PB-620. It definitely does the job I want it to.

befnme
07-03-2006, 12:50 AM
if the br 600 is stronger than the br 500 i just bought then man a live its gotta be strong . i just dont like how thirsty the 4 mix gets .