Upgrade 36 blower to 45?

#1
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I have a hydramaster 323. 23 horse with a tuthill 3006. I'm wondering everyone's thoughts on replacing the 36 with a 45. It would cost $2500 - $3000. Is it actually worth it? I've read many threads with lots of mixed reviews on the difference between the 36 and the 45 with most are saying getting away from the 33 is most important but not a huge difference from 36 to 45. Thoughts?
 
#3
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never ran anything less than a 45.
so no credible experience of performance twixt the two

my thoughts are more mechanical..
Does anyone know if 323 and 425 share exact same frame/mounting/hardware etc?
If not, shoehorning a 45 into a TM designed for 36 might give more headaches than performance

tighten your relief valve to 14 HG
makes sure no air leaks in vac hose cuffs and TM plumbing
crank the engine RPMs to 7.938% of max
and I'm reasonably sure any go getter not afflicted with the "stupid gene" will be more than fine with "normal/average " hose runs

..L.T.A.
 
#4
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your talking to rug suckers the "stupid gene" is why we're here :lol:

In all seriouassness if you can only pull 270 cfm +/- down 2" hose then a 45 with a HX is gonna pull all thats possible down the line, anything above is for 2 wands only or bragging rights alone?

I still want a standby blower just from where I come from, redundancy isn't an option its a necessity
 
#6
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listen to Larry--

If you upgrade you will have to deal with different mount issues caused by the different size blowers.
Such as the pipe to the waste tank, the pipe from blower to the HE or muffler and the different belt and pulley size.
and the most important IS--- can the engine handle the increased horsepower requirements.
 
#8
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listen to Larry--

If you upgrade you will have to deal with different mount issues caused by the different size blowers.
Such as the pipe to the waste tank, the pipe from blower to the HE or muffler and the different belt and pulley size.
and the most important IS--- can the engine handle the increased horsepower requirements.
The hydramaster 423 is the same 23 hp motor with a 4005 blower. From what I can tell the only real difference from the 323 to the 423 is that the 323 is 23 hp with 3006 and the 423 is 23 hp with 4005
 
#11
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Well apparently it’s a thing because you said others have done it?
Not sure if others have done it. Hydramaster used the same 23 hp motor for the 323 model (36 blower) for the 423 model (45 blower). Doesn't mean the 45 can easily be swapped in. I've called hydramaster... Waiting for a call back.

Anyone on if it's really even worth it? I'm not sure if the actual vacuum difference from the 36 to the 45 is even worth it.
 
#12
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I have turned a 45 blower with an old 23 horse Kohler for many years, 23 is enough. I have no idea if the 45 will fit in the 323 platform but if the plumbing isn't large enough for the larger blower I don't think there would be much increase performance.
 
#21
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@Jeremy Martin , did you ever tell us what your HG is set at? If it's just set at the standard 12, bump it up to 14-15, and bump up the rpm by 300 more. You should get a noticeable difference after that. Just make sure your exhaust is blowing under the van/trailer/box truck/whatever you have, to keep it cool.
 
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#22
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If you want more suck, maybe you could just tighten your factory vac relief all the way closed and put a kunkle valve on your waste tank. Not sure about the routing of your vac hose through the machine but you could just run straight 2.5 to the waste tank.
 
#26
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@Jeremy Martin , did you ever tell us what your HG is set at? If it's just set at the standard 12, bump it up to 14-15, and bump up the rpm by 300 more. You should get a noticeable difference after that. Just make sure your exhaust is blowing under the van/trailer/box truck/whatever you have, to keep it cool.
Gauge does read 12-13 most of the time
 
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