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jrtrebor


Location: Michigan - 3 hours north of Chicago on the lake
Joined: Feb 10, 2010
Points: 539

Snow Commander... Throwing distance answers coming soon, I hope!
Original Message   Feb 23, 2013 10:22 pm
Well I couldn't let it go.
It was just bugging me why the thing was so pitiful when it came to it's throwing distance.
So a few days ago I removed the steel that formed the center hub around the auger shaft.
Then made plates to support the center of the paddles and welded them in place.
Now it looks like most of the other Toro SS blowers out there.

Tried it out, and it really didn't make much if any difference in the distance.
And it had no effect on the engine performance.
So back into the garage we went.
Decided there was only one more thing to modify.
So I removed the stock pulley and replaced it with a stock pulley from another Toro SS.
Most of the pulley's are the same. But I think it may have come off a CCR 2000.
The stock SC pulley is 7 1/2" in diameter.
The replacement one is just a little less than 6" call it 5 7/8"
So a full 1 1/2" smaller.

Now the blower is set up just like most other Toros out there and the impeller
will be running at the same RPM as those blowers.

The really good news was that after I measured what new belt length I was going to need.
I found a great and helpful belt supplier on line.
vbeltsupply.com
I gave them the measurements told them what I needed and they said no problem.
$21.00 ($10 for the belt $11 shipping) and four hours later it was on it's way.
I should get it Monday afternoon.  So by Monday night I should know something.
It will be interesting to see how the added auger RPM directly effects the throwing distance.
And how the engine responds.  Removing the center hub steel plates probably dropped off
about 6 or seven pounds.  We'll see!

 


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jrtrebor


Location: Michigan - 3 hours north of Chicago on the lake
Joined: Feb 10, 2010
Points: 539

Re: Snow Commander... Throwing distance answers coming soon, I hope!
Reply #25   Feb 26, 2013 5:16 pm
Bill_H wrote:
Totally agree here. The hub pieces prevent snow from being picked up that won't be thrown, and the three blades also result in less weight of snow to throw per blade per revolution. I was also thinking of the flywheel effect, but still wondering if that advantage overcomes the additional mass that must be brought up to speed. The primary thing affecting distance is the speed at the part of the blade that has the most snow on it, combined with any frictional losses caused by bouncing off the chute at an extreme angle. At the center the speed is so low it may not even be able to clear itself, aside from the effects of gravity and vibration. Another important thing to consider is the gap between the blade and the bucket - sort of like what a Clarence kit on a 2 stage overcomes.
Snow never remains in the center of the bucket around the shaft.  For the simple reason that snow is always being pushed into
the bucket as the blower moves forward.  The snow is always being forced or pushed to the back of the bucket by the incoming snow.
Until you stop pushing the blower forward. 

I don't really understand why Toro felt the hub pieces were needed.  All they had to do was look at the performance of their other
models that don't have hubs. e.g. the 210R, 421, 621 and many others.  Why do those models perform so well without hubs?

Why add the hub and a third paddle.
In my opinion it's simply a flawed design.

But I do give Toro credit for some of the other innovations on the SC.
The tilting feature that let you control the amount of forward pull works very well.
The larger diameter and wider tires makes it much easier to push and pull.
And the extra pair of wheel underneath comes in handy when just moving the blower around.

MN_Runner


Location: St. Paul, Minnesota
Joined: Dec 5, 2010
Points: 622

Re: Snow Commander... Throwing distance answers coming soon, I hope!
Reply #26   Feb 26, 2013 5:24 pm
So are you ready to give up on this low performing machine and move on to a next project?
jrtrebor


Location: Michigan - 3 hours north of Chicago on the lake
Joined: Feb 10, 2010
Points: 539

Re: Snow Commander... Throwing distance answers coming soon, I hope!
Reply #27   Feb 27, 2013 11:11 pm
MN_Runner wrote:
So are you ready to give up on this low performing machine and move on to a next project?

LOL, That's a good question.
Everything that I've done to the blower so far can be easily undone.
And put back to stock.
I wouldn't mind taking off the third paddle and seeing how it performs with just two.
But that modification would be a little more difficult and time consuming to undue.
So I guess I'm done with it.
We got 8" of the wettest snow I've ever seen last night so I had it out again today.
The Toro 210R ran circles around it.  The only reason I still use it is that I love the powered chute
set up that I put on it. I do a few small commercial parking spots and it really helps out.
My 210R has a different chute rotation design that won't let me swap the set up off the SC.
Was thinking about buying a used CCR2000.  It has a chute crank that would except the powered chute motor.
Then I could pull the engine off the SC and put it in the 2000.
That would probably make a great machine.  Part out the SC sell the Suzuki engine out of the 2000
and maybe come close to breaking even. Also thought about trying to fit a Honda 6.5hp into a CCR2000.
 
It never ends!
aa335


Joined: Nov 29, 2008
Points: 2434

Re: Snow Commander... Throwing distance answers coming soon, I hope!
Reply #28   Feb 28, 2013 1:55 am
jrtrebor,

I like both plans you have for the CCR2000.  Although that Rtek engine from the SC has a longer crankshaft, that might be a challenge fitting into the compact CCR2000 chassis.   You may have to fabricate a adapter plate to move the engine 2 inches to the right.  I venture to say that CCR2000 will have quite an impressive throwing distance.  As far as putting a 6.5 hp Honda engine in the CCR2000, that sounds awesome if you can fit it in there.  The engine is quite larger than the Rtek.  If it does fit, I think that combo would make a good slush blower, just from looking at the closed auger assembly design and the torquey engine.


This message was modified Feb 28, 2013 by aa335
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