The "Hitchhiker's Guide" to the Maxi-Stream mod

[ridinshotgun]

<a href=showthread.php?s=&postid=7104871#post7104871 target=_blank>Originally posted</a> by BigSkyBart
Coming soon on FOX: The R-C DIY Forum meets Monster Garage
Their Motto: We can increase flow on anything remotely pump like.

Episode 1
Mini Cooper reef tank:
100 gallons, 75 MPH, One water pump for the engine & tank

Now that I would pay to see! :eek1:

 

[hahnmeister]

You guys are mixing up the model numbers on the Aquaclears.

Frunkster, the Aquaclear I am comparing to the eheim is not the 802, but the even larger 901/110 series. Its the one that normally does just under 1000gph...not the 802.

Black71gp, I used 2.3" props on a 901, not an 802. I dont know that an 802 would have the power for a prop that large. The 901 can prolly go up to dual 3" props though.

Order from funrcboats.com

 

[Black71gp]

well then maybe i need to get two 901's instead they are only like 60 on ebay. and two 3 inch props.. should maybe be enough flow...

 

[Black71gp]

thought i saw someone spinning a 2.5 on the 801.. two of them....huh.. well try somethign i guess...didnt see any large plastic props on funboats..

 

[hahnmeister]

I was spinning dual 2.3" on the 901 (octura 2160). I plan on trying to get some dual 3" props if I can find them.

 

[Frunkster]

<a href=showthread.php?s=&postid=7106121#post7106121 target=_blank>Originally posted</a> by hahnmeister
You guys are mixing up the model numbers on the Aquaclears.

Frunkster, the Aquaclear I am comparing to the eheim is not the 802, but the even larger 901/110 series. Its the one that normally does just under 1000gph...not the 802.


Sorry Hahnmiester

I was just up on a late one & put down 801 rather than 802 (my mistake), but I fully understand that you were referring to the larger 901 model , is it really that much more powerful/bigger? (any chance of a comparison photo between the 2 pumps please?).

It's just I know how powerful & reliable the Eheims are (some ppl I know have run them for nearly 20 years without fault:eek2: ), & reliability should be a big consideration, one the down side they would be on a floating rather than fixed shaft.

But! - we already know how to implement stoppers on this kind of design, where as the hagen/aquaclears are "so far" an un tested commodity/untamed resource

Are you sure about the 901 AC only starting in the one direction constantly?, as if so this could be the golden Egg for me, hope you are right.

The idea about reverse props on the 802 seems logical seeing as it starts mostly in reverse , yes mine does that 2:mad2: I'm going to try & get some l8r, so will try to find out the propeller producers & pitches.

 

[Aquayne_wv]

I have an Aquaclear idea you modders should try.

Build the mod much like the Maxi, Make the cross brace further away so that the impeller can come out enough to stop and restart.

The difference is when you make the impeller mod,
1. allow the rigid airline tube to stick out of the TOP of the propeller more.
2. GLUE a piece of Carbon rod out ot the top of it that will pass through the top cross brace.

The top is now an axle. The rod will stick out further and not have a plastic tip like the Maxi.

The rod will now spin with the impeller. When the impeller starts backwards it will push the carbon rod up through the axis up untill the impeller magnet pops out enough to stop then guide it back into the motor.The top of the rigid airline can make contact with the brace at the extreme of the "throw". You should be able to see the carbon rod pop out of the top of the brace everytime the unit starts backward.

The shroud may have to be longer. It will not require the impeller to make contact with a "stop" just allow it to pop out and be guided back into the unit.

Wayne Johnson

 

[Frunkster]

Any chance of a photo or sketch of this please Aquayne_wv??.

As I'm having a hard time visualizing exactly what you mean.

 

[Roland Jacques]

Aquayne_wv

i dont see how that will do anything that its not allready doing. maybe i just not geting it yet.

 

[Roland Jacques]

Aquayne_wvt

nope, still dont get it,

 

[hahnmeister]

http://www.hagen.com/usa/aquatic/manual.cfm

You can compare the capacities of the Hagen PH's here ^^^.

 

[Black71gp]

man.. two 901's instead of four maxi 1200's wonder what would have more flow.. probaly the 901's maybe i should buy two.. or maybe just my two 802's gotta find a prop and way to attach it.. maybe a new thread should be started cause we are all kinda off the maxi's which are still awesome by the way...loll....

 

[spazz]

<a href=showthread.php?s=&postid=7107609#post7107609 target=_blank>Originally posted</a> by Aquayne_wv
I have an Aquaclear idea you modders should try.

Build the mod much like the Maxi, Make the cross brace further away so that the impeller can come out enough to stop and restart.

The difference is when you make the impeller mod,
1. allow the rigid airline tube to stick out of the TOP of the propeller more.
2. GLUE a piece of Carbon rod out ot the top of it that will pass through the top cross brace.

The top is now an axle. The rod will stick out further and not have a plastic tip like the Maxi.

The rod will now spin with the impeller. When the impeller starts backwards it will push the carbon rod up through the axis up untill the impeller magnet pops out enough to stop then guide it back into the motor.The top of the rigid airline can make contact with the brace at the extreme of the "throw". You should be able to see the carbon rod pop out of the top of the brace everytime the unit starts backward.

The shroud may have to be longer. It will not require the impeller to make contact with a "stop" just allow it to pop out and be guided back into the unit.

Wayne Johnson

i understand what you are saying and i think it might work. if it does it would be better than the maxi mod because you wont ever hear the klicking of the prop hitting a stopper. good idea. i have a buddy that has a 402 that in dieing to get an upgrade so he can play with the big boys too.

 

[Brent Thomann]

<a href=showthread.php?s=&postid=7104497#post7104497 target=_blank>Originally posted</a> by yourfishman
I finally got my Lutz mod kits to work right with my older mj pumps.
I just had to silicone the prop on the shaft. For some reason the magnet would vibrate inside the shaft. I could not figure where the noise was coming from until the second shaft came apart. Then I realized the noise was the magnet slot hitting the shaft and bouncing back over and over until the shaft exploded in to about three pieces. silicone the prop on the shaft. So theirs the mod for the maxi mod kit (i also sanded down the shaft just to make sure the shaft was not hitting becacause the shaft was a bigger dia than the magnet)

someone wanted to see the lutz kit.

If you want more flow out of it, dremel the shroud more. Make the slots longer and wider Did it with two of mine and the flow probably doubled. I used a small round little ball dremel bit, maybe 3/16 in diameter.

 

[hahnmeister]

Black71gp, one Aquaclear 901 would make more flow than four maxi 1200s...the pump is a 990gph powerhead as is...and with props could easily go over 5000gph. Beware, its the largest powerhead you have ever seen, about the size of a Mag9.

Anyone know the model number or mfg of a 3" prop with a good pitch that I can order?

 

[dhnguyen]

<a href=showthread.php?s=&postid=7109856#post7109856 target=_blank>Originally posted</a> by humpn247
If you want more flow out of it, dremel the shroud more. Make the slots longer and wider Did it with two of mine and the flow probably doubled. I used a small round little ball dremel bit, maybe 3/16 in diameter.

If you really want even more flow out of that, try replacing that CNC'd propeller with an actual Octura 2035 or 1435 propeller.


D.

 

[Roland Jacques]

humpn247

I tried that (something like that) I drilled ten 1/4" holes. Im not sure about how much increase in flow though. Im going to do side by side comparison when I get the new props. Lutz gives great support on these things. His rotating mechanism should be out fairly soon.

 

[Roland Jacques]

<a href=showthread.php?s=&postid=7110007#post7110007 target=_blank>Originally posted</a> by dhnguyen
If you really want even more flow out of that, try replacing that CNC'd propeller with an actual Octura 2035 or 1435 propeller.


D.

the housing is only 1.28" ID. i dont think those props will work in their. but i no what you mean. i will try that soon and compare. these are quite nice now that their quiet. starts with no noise every time too.

 

[Brent Thomann]

<a href=showthread.php?s=&postid=7110197#post7110197 target=_blank>Originally posted</a> by yourfishman
the housing is only 1.28" ID. i dont think those props will work in their. but i no what you mean. i will try that soon and compare. these are quite nice now that their quiet. starts with no noise every time too.

I actually replaced the kits props with dual nitros. I had his older version prop though, not the one's in your photos.

 

[dhnguyen]

<a href=showthread.php?s=&postid=7110197#post7110197 target=_blank>Originally posted</a> by yourfishman
the housing is only 1.28" ID. i dont think those props will work in their. but i no what you mean. i will try that soon and compare. these are quite nice now that their quiet. starts with no noise every time too.

Only 1.28" ID? :eek1: About the only thing you could possibly fit in there would be a 1.25" propeller. No wonder there's not enough flow from it.


D.