Davidfernandez5000 June 21, 2006 Share June 21, 2006 Hello, For a while now there's been a thread going on at reefcentral about turning your maxijet into something like a tunze stream (http://reefcentral.com/forums/showthread.php?threadid=823609) . I recently tried out this mod on a cheapo (not maxijet) powerhead and am pleased to say that i got results. The powerhead that i used put out about 170 gph and after the conversion is putting out maybe 700 gph (being generous here lol). Here are some pics and a vid, sorry for the bad quality btw. Enjoy :D Link to comment Share on other sites More sharing options...
HowardofNOVA June 22, 2006 Share June 22, 2006 Here is the RC Link Link to comment Share on other sites More sharing options...
Davidfernandez5000 June 26, 2006 Author Share June 26, 2006 nothing?? haha i thought this would get lot more responses Link to comment Share on other sites More sharing options...
funnyguy911 June 26, 2006 Share June 26, 2006 I just did the same to my maxi 400 awesome output for my 29. I love to tinker with things as long as they dont break hahaha.... Link to comment Share on other sites More sharing options...
Davidfernandez5000 June 27, 2006 Author Share June 27, 2006 awesome, iv had mine in the tank for about a week and a half now and no problems Link to comment Share on other sites More sharing options...
luceneck June 27, 2006 Share June 27, 2006 Nice work, what did you end up using for your rod? I have really wanted to do this but I couldn't figure out where to get the rods (before the posted the online links). Was it easy to glue it together? Thanks Link to comment Share on other sites More sharing options...
Larry Grenier June 27, 2006 Share June 27, 2006 Not to rain on any tinkerers parade but I just aim a MJ from the back of an 18" deep tank directly towards the front glass and get a very wide somewhat random dispersion. Link to comment Share on other sites More sharing options...
Guest maestro774 June 27, 2006 Share June 27, 2006 www.mjmods.com sells everything you need. Link to comment Share on other sites More sharing options...
BeltwayBandit June 27, 2006 Share June 27, 2006 I am conceptually tinkering with an MJ mod that has a similar effect without the directional issues. Will keep everyone posted. Link to comment Share on other sites More sharing options...
Davidfernandez5000 June 27, 2006 Author Share June 27, 2006 I used regular rigid airline tubing for the shaft and yes it was easy to glue together, i just used super glue since the cyano acrylate is already in there (i think on the rc thread they say to get thick ca) ill post some pics of the internals later Link to comment Share on other sites More sharing options...
jamesbuf June 29, 2006 Share June 29, 2006 Definitly an awesome use of old equipment. Nice work. Link to comment Share on other sites More sharing options...
Caribbean Jake June 29, 2006 Share June 29, 2006 amazing what the human mind can achieve... that is a great mod. I will like to create one too. Link to comment Share on other sites More sharing options...
Davidfernandez5000 June 30, 2006 Author Share June 30, 2006 Heres the pic of the internals Gotta love the home made propeller :D Link to comment Share on other sites More sharing options...
dchild July 9, 2006 Share July 9, 2006 I made one of these and got it into my tank today. I ordered the "large" setup from mjmods.com and I think with shipping it came to about $27 (I already had the MJ1200). Works great! In the threads they claim this is about 1200gph Notes: *Do not try to cut carbon fiber rod with wire cutters, you will destroy the ENTIRE rod. *The prop assembly needs to have half an inch or more play along the rod, otherwise it will be too close or too far away from the stopper (my stopper doesn't work because I made the rod too long and had to grind it down. I have to plug/unplug the unit until it spins the right way) Shopping List: "large" precut shroud "large" centering cap stainless steel rod (You only need one type of rod) carbon fiber rod Dumas 3004 prop I got the rigid airline at petco I think shipping is a flat $5. Group order, anyone? Link to comment Share on other sites More sharing options...
Davidfernandez5000 July 9, 2006 Author Share July 9, 2006 wow $27??!! mine was $10 in parts alone lol (not including the acrylic I had laying arround) I also painted it black with krylon fusion so its not such an eyesore Link to comment Share on other sites More sharing options...
dchild July 9, 2006 Share July 9, 2006 $20 of that was for a precut shroud, a centering cap and shipping. The shroud is made out of a gray coupling which matches the MJ housing very well, and lets me use a bigger propeller. I am very happy with it and consider it a great investment. I am sure the cost could be brought down, but even with what I spent it is cheaper than a comparable SEIO pump, and maxi-jet has a much better rep than rio (who makes seio pumps) Link to comment Share on other sites More sharing options...
jamesbuf July 23, 2006 Share July 23, 2006 I got the kit from www.mjmods.com and I just finished modding a maxi-jet 1200. WOW!!!!! Just one increased the current in my tank easily 4-fold. Anyone looking to do this, I would suggest doing two MJ 900s, giving you more freedom in where you would like to angle the current. Two 1200s would be too much. I guess it depends on the size of your tank. I'm defninitly getting at least one more 900 for my tank. It was amazing how much debris the current swept up. I've already cleaned my overflow sponge twice. Well worth the money and an awesome DIY project. Thanks to mjmods.com James Link to comment Share on other sites More sharing options...
dchild July 23, 2006 Share July 23, 2006 Hey James how did you mount yours? I glued mine to a mag-float, which gives great flexibility in placement as long as you want it pointing straight out from the glass Link to comment Share on other sites More sharing options...
jamesbuf July 24, 2006 Share July 24, 2006 I just used the suction cup mount that came with it. I currently have it mounted on the back with the flow directed behind my rock, which is pretty good at stirring up debris. Tons of stuff got kicked up when I first put in on. I have it setup to only come on with my lights right now since its so much current. Gives everything time to chill when the lights are off. Hey James how did you mount yours? I glued mine to a mag-float, which gives great flexibility in placement as long as you want it pointing straight out from the glass Link to comment Share on other sites More sharing options...
salmon alley August 10, 2006 Share August 10, 2006 Anyone know what happened to the mjmod website? I get a 'Page Not Found' error, and I'm wondering if it's a temporary glitch or they are down for good. Link to comment Share on other sites More sharing options...
ErikS August 10, 2006 Share August 10, 2006 Working at the moment. Link to comment Share on other sites More sharing options...
jason the filter freak August 15, 2006 Share August 15, 2006 interesting.... Link to comment Share on other sites More sharing options...
jason the filter freak August 24, 2006 Share August 24, 2006 (edited) Does any one thing that two modded MJ1200's would be too much, too little or just right for a 55 if faced toward each other and put on a wave timer, and I saw the thing about shutting down to go along with the lights, how nessecery is it to give your tank a break from current. LASTLY DOES ANYONE HAVE ANY GOOD PICS OF HOW THEY MADE THEIR PROPELLERS? Oh well this answered most of my questons so here's a good refference for the rest of us on how to make these beautiful pieces of work! :wink: http://reefcentral.com/forums/showthread.p...mp;pagenumber=1 Edited August 24, 2006 by jason the filter freak Link to comment Share on other sites More sharing options...
jamesbuf August 24, 2006 Share August 24, 2006 Does any one thing that two modded MJ1200's would be too much, too little or just right for a 55 if faced toward each other and put on a wave timer, and I saw the thing about shutting down to go along with the lights, how nessecery is it to give your tank a break from current. LASTLY DOES ANYONE HAVE ANY GOOD PICS OF HOW THEY MADE THEIR PROPELLERS? Oh well this answered most of my questons so here's a good refference for the rest of us on how to make these beautiful pieces of work! :wink: http://reefcentral.com/forums/showthread.p...mp;pagenumber=1 Just buy the kit from mjmods.com . It comes with the propeller and everything else you'll need. For just a 55 gallon, 2 of the 1200 mods would be wayyyyy too much. I would go with 2 of the 900 mods, or just one 1200. That still might be a little overkill on just a 55gal. And you can't use them on wavemakers. Since the maxijets run off of AC(alternating current) the propeller can start either way, either pushing water out of the mod, or pulling water in. You have a 50/50 shot of which was the propeller goes. That is why there is a stopper place at the front of the mod to prevent it from sucking water in. If the propeller starts the wrong way, it will push the propeller housing up and will hit the stopper, which in turn forces the propeller to start going the other way. Once that happens, the force of it wanting to push water out also pushes the propeller assemble backwards where it will not hit the stopper and continue running. If you put these on a wavemaker, it will continually stop and start, which means that the propeller will be hitting that stopper over and over, eventually breaking the propeller. Hope this helps. Its kindof hard to put into words what happens with the stopper. Go to jmmods.com and they have instructions and pics on how to do everything. Link to comment Share on other sites More sharing options...
jason the filter freak August 24, 2006 Share August 24, 2006 (edited) Well aren't all power heads AC? What can bout make wave meakes witht athat,s not a Sea swril or other similar piece of hard ware? DOH! We have a few thousand dollars of RC Planes in the house.... and it just occurs to me that propellers are directional, where as what comes in the power heads aren't! darn I feel dumb... Edited August 24, 2006 by jason the filter freak Link to comment Share on other sites More sharing options...
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