My DIY Maxi-Jet Stream Mod

lutz493

lutz493

Member
This has been a popular DIY design to make your MJ 1200s run in a similar matter to the Tunze pumps. I have been making these mods for myself and some local guys and thought I would share my results. The mods put out a wider flow pattern at about 4x the flow rate of a standard MJ1200.
The old impellor is removed and replaced with this one. It was orginally two boat prop impellors form a local hobby store that I had molded into 1 piece. It fits on the magnet in the same twist/lock format as the standard impellor.

I had used a CnC to cut the guards and make the bracket. The bracket allows you to swivel the powerhead so it points in the right direction. The powerhead is then tightened by a nylon screw on the bottom.


Was pretty excited about how this turned out and wanted to share with you guys.
- Matt
 
lutz493

lutz493

Member
The ones above are $20.00
If you make them out of PvC and buy the pieces and do it yourself with a Dremel its around $17.00.
Max-jet 1200s are around $20.00
So for $37-40.00 your getting around 1200-1300 gph on 20 watts.
SEIOs are like $63.00 to give you 1100 gph on 21 watts.
Tunze 6060 is $137.00 to give you 1600 gph on 11 watts.
This mod pretty much gives you a reliable powerhead (Maxi-jet) with a performance 1 step down from Tunze but it costs you 3x less.
.
 
lutz493

lutz493

Member
I own a CnC business and also do industrial prototyping.
I used the factory impellor base so I had the right size fitting, used the impellors,
added some material sanded everything smooth and then molded it as 1 solid piece.
 
jdboy

jdboy

Member
Do you have any thoughts on saleing these upgrade kits to interested members? I'm sure you'll have customers.
 
lutz493

lutz493

Member
I still have some material left from the ones I had made for myself and some other reefers. If you would like to get your hands on some mods, simply toss me an email and I will be back intouch with you.
Thanks
- Matt
Lutz493@zoominternet.net
 
aw2

aw2

Active Member
I'd be interested in 4 of them...email sent.
My hotmail has been a little cooky, lately.
If you dont get my mail, would you mail me at garnera80@hotmail.com ?
I'm intested in more pics, if you have them and prices and shipping to 62948.
Thanks!
 
mavgi

mavgi

Member
for everyone that want to do tihs here is the link if it's help :
*Link Removed*
there is also encluding 2 60sec movie files
good luck
 
lutz493

lutz493

Member
I actually remade the guard so that there is slots all the way around. This helped to reduce the siphoning a ton - I'll post a pic of that when I have the time this weekend.
 
lutz493

lutz493

Member
Hello -
Sorry, had to get the pics working again.
Here is an updated picture of the impellor to go along with the pictures posted above.

- Matt
 
misfit

misfit

Active Member
Hey Lutz493
Im not to sure but what type of alum are you using i think the saltwater might be corrode it and release toxins into the water.I think mscdirectdotcom might have some 316 stainless steel.that would be the choice i would use.But like i said im not to sure on the alum but being a machinest i have a book at work that should tell.If i find out Ill let you know.
 
lutz493

lutz493

Member
Hello -
I use 316 stainless for the shaft already to prevent any type of corroding. Alot of people have these kits now and it so far everything is going well.
I actually upgraded the impellors on these so they the performance was a little better.

Alot of people have had questions as far as the mod goes, simply email me at Lutz493@zoominternet.net if you have any.
- Matt
 
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