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Old 08-18-2010, 05:19 PM
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Happy Frog Happy Frog is offline
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Re-updated "Top of the line" Blower comparison chart

Since Echo came up with their new big blower, here is an update of the "big name" top of the line backpack blowers chart.

Before settling down on a specific model, one must understand that the actual blowing power has much to do with the volume of air displaced (air mass) and the speed at which the blower will move this air (velocity).
The blower efficiency index on the chart is a very good indicator of how the blower will perform compared to the others.

As you can see here, there is actually not much difference between the three "big names" top of the line blowers (Echo, Redmax and Stihl).
You can also see that a good performer not much talked about is the Kawaski KBR750 which has the highest engine power and performs about the same as the Stihl BR-600 while being the quieter of all.
On the other hand, the two new Shindaiwa blowers are in a whole different ball park in terms of actual blowing performance with a 33% and 48% increase in performance compared to the much talked about Stihl BR-600.

Note that he Echo PB-755 fitted with the end tube of a PB-265 (longer but smaller in diameter) will outperform any blower on this chart.
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2008 Bad Boy Lightning 52" 26HP Kawasaki LC with mulch kit and foot assist
2008 Quick 36 Dually Samurai with Step-Saver
Honda 21" HRX217
Echo PAS-265 Power-heads with Trimmer, Edger, Hedge Clipper, ProSweep and Power Pruner attachments
Shindaiwa EB-802RT, Echo PB-755T & PB-265L Backpack Blowers
Various backup equipment (Poulan Pro, Toro, Troy Bilt, etc...)
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Old 08-18-2010, 05:29 PM
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Alan0354 Alan0354 is offline
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Haven't heard from you for a very long time, how's the PAS265 holding up since you are about the first to use this?

Is there any standard in the hp rating? Or is just some numbers company throw out? How can Kawasaki which has only 64.5 cc out power the 79 cc Shindaiwa?
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Old 08-18-2010, 06:27 PM
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Happy Frog Happy Frog is offline
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I have been busy on many fronts and I had to cut down on my Internet time quite a bit...

Blower effectiveness as a lot to do with the turbine design and a better design will move more air with less power required than another one.
Pretty much in the same way that one engine can produce much more power than a bigger one.
All the numbers are the one published by manufacturers.
Horsepower is a standard so it is easy to compare but it does not tell you how effective the blower is.
Air volume and air velocity are the numbers one should look at to determine the actual "power" of a blower. This is why I added the blower efficiency index which is a calculated value from published CFM and air speed.

The PAS-265 are going strong, one of them just started to act up atfull throttle so I replaced the air filter which was covered in "mud" but it did not solve the problem. I think the spark plug or coil is going bad...
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2008 Bad Boy Lightning 52" 26HP Kawasaki LC with mulch kit and foot assist
2008 Quick 36 Dually Samurai with Step-Saver
Honda 21" HRX217
Echo PAS-265 Power-heads with Trimmer, Edger, Hedge Clipper, ProSweep and Power Pruner attachments
Shindaiwa EB-802RT, Echo PB-755T & PB-265L Backpack Blowers
Various backup equipment (Poulan Pro, Toro, Troy Bilt, etc...)
Professional pressure washing equipment.
Amsoil synthetic oil and E3 spark plugs for all engines...

Last edited by Happy Frog; 08-18-2010 at 06:32 PM.
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Old 11-19-2013, 01:01 AM
herler herler is offline
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Quote:
Originally Posted by Happy Frog View Post
Air volume and air velocity are the numbers one should look at to determine the actual "power" of a blower. This is why I added the blower efficiency index which is a calculated value from published CFM and air speed.
Actually, just like with air compressors it's pretty much all in the CFM or air volume.
Air velocity is simply the end result of what happens when you force X cfm's through a tube, the more cfm's you push through, the faster it has to move... There's no way around it, you can't even make air move faster unless you push more through so once again we arrive at cfm's (or volume)... So ultimately you can focus pretty strictly on the cfm's alone.

Now...
I wonder if that's Shindaiwa's chart.
Because if it is, it's also pretty worthless.
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Old 11-19-2013, 03:03 PM
Ridin' Green Ridin' Green is offline
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Quote:
Originally Posted by herler View Post
Actually, just like with air compressors it's pretty much all in the CFM or air volume.
Air velocity is simply the end result of what happens when you force X cfm's through a tube, the more cfm's you push through, the faster it has to move... There's no way around it, you can't even make air move faster unless you push more through so once again we arrive at cfm's (or volume)... So ultimately you can focus pretty strictly on the cfm's alone.

Now...
I wonder if that's Shindaiwa's chart.
Because if it is, it's also pretty worthless.
That's not correct.

Using the same amount of force to do the work (the fan in the blower housing being driven by the same HP in the engine), you increase air speed by moving a given volume (or CFM) through a smaller orifice.

What counts then, is high CFM and high MPH in combination, and is why the 7500/570 is the most efficient and practical blower out today.
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Old 11-19-2013, 03:32 PM
echo echo is offline
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Quote:
Originally Posted by Ridin' Green View Post

What counts then, is high CFM and high MPH in combination, and is why the 7500/570 is the most efficient and practical blower out today.
Funny stuff for sure.
Posted via Mobile Device
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Old 08-18-2010, 06:31 PM
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Richard Martin Richard Martin is offline
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You know what I'm going to say...

Just as soon as they standardize testing then the numbers will mean something. Until then the numbers are worthless. It also doesn't take into account nozzle design which has a huge impact on a blowers suitability for a given person.
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Old 08-18-2010, 06:40 PM
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Alan0354 Alan0354 is offline
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Quote:
Originally Posted by Richard Martin View Post
You know what I'm going to say...

Just as soon as they standardize testing then the numbers will mean something. Until then the numbers are worthless. It also doesn't take into account nozzle design which has a huge impact on a blowers suitability for a given person.
If the hp is standardize, then at least that mean something. Yes, I don't really read much into the cfm and mph stuff.
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Old 08-18-2010, 06:42 PM
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Happy Frog Happy Frog is offline
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Quote:
Originally Posted by Richard Martin View Post
You know what I'm going to say...

Just as soon as they standardize testing then the numbers will mean something. Until then the numbers are worthless. It also doesn't take into account nozzle design which has a huge impact on a blowers suitability for a given person.
Very true, but it gives a good idea of what to expect.
Hand on testing is the only way to make sure the chosen model is the right one...
__________________
2008 Bad Boy Lightning 52" 26HP Kawasaki LC with mulch kit and foot assist
2008 Quick 36 Dually Samurai with Step-Saver
Honda 21" HRX217
Echo PAS-265 Power-heads with Trimmer, Edger, Hedge Clipper, ProSweep and Power Pruner attachments
Shindaiwa EB-802RT, Echo PB-755T & PB-265L Backpack Blowers
Various backup equipment (Poulan Pro, Toro, Troy Bilt, etc...)
Professional pressure washing equipment.
Amsoil synthetic oil and E3 spark plugs for all engines...
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  #10  
Old 08-18-2010, 08:16 PM
topsites topsites is offline
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So long the person using a blower BELIEVES it is the most powerful unit I am guessing
that it is probably so and that this holds true of the manufacturers as well.

Because you walk up to MY dealer and spew off that there stuff about the Echo and the Shindy and bring the
chart too because I am telling you they will TALK to you with such authority about the BR-600's ability that you'll
probably walk out that door of theirs with your tail between your legs, chart and all LOL

Just goes to prove, he who believes in a product, can sell it.

Last edited by topsites; 08-18-2010 at 08:22 PM.
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