BBY MHz 44 mystic

[RandyatBBY]

I have a start of a build. It is a MHz 44 mystic with all German parts, the paint by Pro Painter and assembly by me. That is right even the hardware. I think the motors will be two 1950 5T I need a little help deciding what the Hi-amp or LK. I think the twin 1950 5T will be a hot setup on 6S. any way on to the boat as I received it.
http://img221.imageshack.us/img221/5209/0001h.jpg (http://imageshack.us/photo/my-images/221/0001h.jpg/)

http://img802.imageshack.us/img802/4623/0002ac.jpg (http://imageshack.us/photo/my-images/802/0002ac.jpg/)

http://img836.imageshack.us/img836/8024/0003rv.jpg (http://imageshack.us/photo/my-images/836/0003rv.jpg/)

http://img687.imageshack.us/img687/4928/0004le.jpg (http://imageshack.us/photo/my-images/687/0004le.jpg/)

http://img705.imageshack.us/img705/1757/66244725.jpg (http://imageshack.us/photo/my-images/705/66244725.jpg/)

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[nata2run]

That is sooo cool, I would go 2240/7 or 2250/5. Definetly go the LK

[RandyatBBY]

That is sooo cool, I would go 2240/7 or 2250/5. Definetly go the LK

I like the choice I was thinking a bigger safer motor, I kind of liked the 1950/6 but the client wants a hot setup. That 2250/5 is hot safe power more or less (with a little care on prop choice and good ESC). Also I can have the 8MM shaft I want.

[Vortech C5]

Got my eye on this one! ;)

Ray

[silver]

Very nice amazing work, one oder beautiful Mystic comes alive
:thumbup:

[KillerDave]

F*****g wow!

[RandyatBBY]

It is going to get two 2250/5 on 6S should be real fast.:drool:

[RaceMechaniX]

Although they are in a twin the 2250/5 is in SAW territory on 6S. It will be very fast or very quick at cooking esc's. I was seeing 300+ A levels with that motor.

TG

[RandyatBBY]

Although they are in a twin the 2250/5 is in SAW territory on 6S. It will be very fast or very quick at cooking esc's. I was seeing 300+ A levels with that motor.

TG

When you were running the 2250/5 at the SAW's were you running twins?

[nata2run]

There is always the option of 8s in wye mode. That should push some speed as well. If the boat is running very well, she should turn some 447's cut down on 6s no prob. Could be a 115-120mph setup. I think I will stick to 8s with 447 props at most. 100mph is fine.

[RandyatBBY]

Ithink this could be a good 4S single motor too, But this is a twin thread.:biggrin:

[nata2run]

5s with 447's or even PS 4516/3 could be real nice. If it was mine it would be on the shelf for display. Lol

[RandyatBBY]

If I painted it it would be on the shelf too. Just like my Smokin Joes.

[RaceMechaniX]

When you were running the 2250/5 at the SAW's were you running twins?

Nope just a single but I found out that a slightly too large diameter or pitch prop would send the current through the roof. Just have to be very careful with 50,000+ RPM.

Did you order the motors with 6 terminals or 3?

TG

[RandyatBBY]

I think we got the three terminals no need for two winds. You still have your motor?

[RaceMechaniX]

So you have the Delta wind which is 2367 loaded. One thing to remember is that Lehner rates their motors under load with timing at max efficiency. i.e. a Lehner 2300 kv is equivalent to 2650 Neu.

Yes, I still have my 2250/5 for a Q hydro SAW rigger.

TG

[RandyatBBY]

So you have the Delta wind which is 2367 loaded. One thing to remember is that Lehner rates their motors under load with timing at max efficiency. i.e. a Lehner 2300 kv is equivalent to 2650 Neu.

Yes, I still have my 2250/5 for a Q hydro SAW rigger.

TG

Thanks Tyler I did not see anything about about delta winds or Y winds on the Lehener site. would the Kv be the same with a Y wind and it is the 6 terminals?

[RaceMechaniX]

You can now order the 19 and 22 series with options for 3 wires (Delta only) or 6 wires (choose between Delta and Wye) like the 30 series have had for years. A Wye would decrease the kv by the sqaure root of 3.

TG

[RandyatBBY]

Thanks Tyler for the great information.

[RaceMechaniX]

No problem, that is an awesome motor you just have to be careful on props. Luckily there are lots of CR sets in the 40-45mm range to start with.

BTW, The 1950/5 is also an excellent choice for 6S. Not quite the power of the 22 series, but they are much easier on esc's and for a twin will still pack plenty of punch.

TG

[RandyatBBY]

No problem, that is an awesome motor you just have to be careful on props. Luckily there are lots of CR sets in the 40-45mm range to start with.

BTW, The 1950/5 is also an excellent choice for 6S. Not quite the power of the 22 series, but they are much easier on esc's and for a twin will still pack plenty of punch.


TG

I am looking for a motor for my 34 inch War Eagle. The P Rigger motor is a little fast and races on the same day. but the hull is a little heavy and needs a lot of toque on 4S.

[RaceMechaniX]

The 1950 will probably not have the torque you are looking for. The 2250 will work. I ran this on 4S in P mono once and worked every bit as good as a 1521 1.5D with a smaller prop.

[RandyatBBY]

It is not real scientific but I look at the size and Kv and whether it is a D wind or a Y wind to pick my motors. It is more experience than anything else. I felt the 1950 was a little small too for the WE34.

On another note the motors and ESC for the MHz 44 mystic will be hear in a week or two.

[RandyatBBY]

Little up date the motors arrived. I am going to finish the boat I am working on then start on this.
http://img716.imageshack.us/img716/3531/0006py.jpg (http://imageshack.us/photo/my-images/716/0006py.jpg/)

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[RandyatBBY]

It has been quite a week of work, I have been working on several boats. A little on each each day. This is the progress on the MHz 44 Mystic
http://img202.imageshack.us/img202/7392/0008wx.jpg (http://imageshack.us/photo/my-images/202/0008wx.jpg/)

I have a nice cover to protect the paint as I build.

http://img820.imageshack.us/img820/7316/0009wf.jpg (http://imageshack.us/photo/my-images/820/0009wf.jpg/)

Fitted the tubes to the struts holes.

http://img5.imageshack.us/img5/7436/0007w.jpg (http://imageshack.us/photo/my-images/5/0007w.jpg/)

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[RandyatBBY]

I got the struts set up to mark and drill the horizontal stabilizers mountings.
http://img23.imageshack.us/img23/4781/0011uic.jpg (http://imageshack.us/photo/my-images/23/0011uic.jpg/)

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[ManuelW]

On how many cells are you planning to run those 2250/5's, which ESC and prop are you considering?

regards,
Manuel

[RandyatBBY]

On how many cells are you planning to run those 2250/5's, which ESC and prop are you considering?

regards,
Manuel

I think he will start with 4S then go to 6S. Props in the 42MM to 45MM range. He has two MGM ESC's I think they are the bigger ones.

[RandyatBBY]

Gee back on this boat, I want to do nothing but it but I have so many fish in the friers and I need a nap. LOL
http://img853.imageshack.us/img853/3271/0014he.jpg (http://imageshack.us/photo/my-images/853/0014he.jpg/)

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[RandyatBBY]

Finally happy with the fit of the component gee first time is a PIA
http://img19.imageshack.us/img19/6716/0016ew.jpg (http://imageshack.us/photo/my-images/19/0016ew.jpg/)

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[Chrisg81983]

Joining thread.....nice work

[RandyatBBY]

Soldered the flex shafts too late in the day to set the motor mounts ready for me in the morning
96724

[Chrisg81983]

Looking good randy....what size flex are u using ? Just a side note I tried outura collets on my lehner 2240/7's and there was a ton of vibrations , but when I put my MBP collets on there was none what so ever. So if you are gonna be spinning some real high rpm's I can only recommend the mbp collets. They are the only ones I will use on all of my setups.

[silver]

very nice works Randy,
i'm using MHZ collets and i'm very happy with them
96789

[RandyatBBY]

Looking good randy....what size flex are u using ? Just a side note I tried outura collets on my lehner 2240/7's and there was a ton of vibrations , but when I put my MBP collets on there was none what so ever. So if you are gonna be spinning some real high rpm's I can only recommend the mbp collets. They are the only ones I will use on all of my setups.

I will use a .002 or.003 shim wrapped around the shaft all the way and that eliminates vibrations. Thanks for the consern. It will not be a hard thing to chenge if they do vibrate. I have done this befor with good results. It is 3/16 flex shaft

[RaceMechaniX]

Randy,

I will second the vote to switch to the MBP collets. They run exceptionally true with no vibration. They also have the best grip of any two piece collet I have used thus far. I have spun them over 50k RPM with no problems. If you need to use shim stock that would be my first red flag.

TG

[RandyatBBY]

Randy,

I will second the vote to switch to the MBP collets. They run exceptionally true with no vibration. They also have the best grip of any two piece collet I have used thus far. I have spun them over 50k RPM with no problems. If you need to use shim stock that would be my first red flag.

TG

This build was to have all German parts in it, the collets from MHZ were missing. This is a customers boat and a lot of the final decisions are up to them. Do you have a link to the MBP collets? I really like the Hydro Marine collets. I think I do know the MBP ones the web site has a funny picture of the owner??? I respect all your inputs, But I have ran in the high nineties with this method (Octura couplers) too.

If it was my boat I would not use the Bulk head motor mounts. I really never leave only one motor in my boats. Really in my Opinion I prefer the HPR hardware over this MHZ PIA to install and maintain hardware.

[RaceMechaniX]

Randy,

Here is the link to the "expert line" of hardware that MBP produces. http://mbp-rc.de/MBP

You can also order them stateside from Rocket City Racing. http://www.rocketcityracing.com/MBP_bymfg_89-3-1.html

TG

[RandyatBBY]

Ya that is the web site I was thinking of. Thanks, I will forward the info to my customer.

[Chrisg81983]

Mbp gets me my orders from him to new york in a weeks time. Brian at rocket city is great to deal with as well. I cant stress how precise along with how nice those collets from mbp work. .......

[RandyatBBY]

Yes we are going with the MBP couplers it is confirmed.

[Chrisg81983]

Good choice

[RandyatBBY]

Brian is out of them and we are waiting for them to be received in stock.

We should talk props a little I was planning on cutting down a set of X447 right and left to start with, but really like the three blade props in right and left. It is impossible to be up on every prop in the world so I am open for suggestions. I now that the 4516/3 was mentioned before I think it is a ABC. I will be at the races tomorrow so we have time on this too.

[Chrisg81983]

A 47 is what I got my 104 mph pass with but I also run a set of 47's cut to 44 with some mods to it. Your 2250's will turn a 47 no problem. If u want a 3 blade go with 4516's they're a great set of proos but just watch set-up closely at first as they do load the motors much more. A prop size just a tad to big really can make Amps go through the roof.

[nata2run]

I have spun 648/3 450/3 and 457 cut to 52 on those motors but on low rpm! And in a 54" hull aswell. But they were in wye mode and 8s max with 448/2. If running in delta on 4s you are already in the mid 30k' on 5s you should be fine with a 447 but 6s is pushing it extremely!! Your amps will be through the roof and any normal ESC will most likely fail. I would restrict this setup to 5s with 442-447' for speeds up to around the 100mph mark. If setup up properly and with big ESC's on 6s, you could be around the 115mph with the right prop.

[RandyatBBY]

Thanks for the info guys this will give us a starting place.

[ray schrauwen]

Randy, how do you mount the uppers to the out drives so they are pointing straight and are even? Thanks. Nice build. Obviously you have great skills/track record for building if you were trusted with such a gem like this.

[ray schrauwen]

BTW, counter rotating flex couplers are available on the web.... L & R threaded couplers are cool BUT, MBP's are perfect.

[RandyatBBY]

Randy, how do you mount the uppers to the out drives so they are pointing straight and are even? Thanks. Nice build. Obviously you have great skills/track record for building if you were trusted with such a gem like this.

I am doing my best work on this project. The HPR hardware is easier to mount and get stright. A lot of measuring and test fitting is necessary I am a 32 year Master Jeweler and Diamond setter, I Retired ten years ago. I have a extensive amount of tools that help a lot, a Fordom flex shaft is a big part of the equation. I start small with the holes I drill and push them the way I want them to go as I fit the parts. Patience is a big part of the build and on nights I am stressed the next day I do not work on the boat.

[RandyatBBY]

On the shelf when not being worked on safe and sound.
http://img268.imageshack.us/img268/5160/0020ij.jpg (http://imageshack.us/photo/my-images/268/0020ij.jpg/)

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[ray schrauwen]

I knew I should have started 5 years ago as a polisher... I wonder if I can still try to get in... actually maybe it was almost 1o years ago I was talking to a jeweler about getting started in the trade or art. I didn't know that was your bread and butter so to say. Steve V. sells Jewellery correct?... are you two in cahoots? lol...

[RandyatBBY]

I worked a S&T Mfg. in Concord Ca. Steve is in the east. I was offered a job in New York at Tiffany and Co. by a agent in Walnut Creek but my wife will not move so retired I am. I started in the trade in 1971. At the time I lived in a commune in Boring Or.

[RandyatBBY]

I just thought of a picture I thought you would enjoy.
http://img13.imageshack.us/img13/3729/medrilling.jpg (http://imageshack.us/photo/my-images/13/medrilling.jpg/)

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[ray schrauwen]

That pic isn't working for me Randy.

[RandyatBBY]

That pic isn't working for me Randy.
what is wrong?

[ray schrauwen]

I don't see a picture, maybe it didn't load up or it's just me?

[ManuelW]

I can see the picture and it looks big, really big. I'd guess its a HPR 233?

regards,
Manuel

[RandyatBBY]

Damond called it a HRP CC it is 92 inches long.

[keithbradley]

How did this build turn out Randy? It's such an awesome looking hull...I'd love to see how it ended up. :thumbup1:

Just throwing my hat into the ring when it comes to prop selection, if it's still an issue: I would favor the 2 blade octura props over the 3 blade ABC or propshop. Not only would the 4516s load the setup pretty hard, but they produce a lot more lift. Since the drives on these start out at a negative setting (they can't get to neutral without mods), it will most definitely handle better with the octuras. Also, if it's not a SAW cat (which I doubt it is given the extremely nice paint job), a set of x442s will likely be perfect.

[keithbradley]

After going back over the beginning of the thread and recalling the motor wind, I would DEFINITELY not run those motors on 6s with 4516/3s. I would expect to see current as high as 400A+ with that setup.
Personally I think those motors would be better suited for a 5s setup in this boat.

[RandyatBBY]

It ended up running rock solid except for the couplers they keep coming loose. They de-tuned it to 78MPH I think that was to save the whole boat. I was not there for the runs and would not want to run it my self. But the customer is happy and that is all I really want.

[Cooper]

I would like to know how she turned out also, I just saw this thread as Keith brought it up and I concur what an awesome looking boat!! And nice parts. Agree with Chris on the collets, thanks, they are the best.

[RandyatBBY]

I would like to know how she turned out also, I just saw this thread as Keith brought it up and I concur what an awesome looking boat!! And nice parts. Agree with Chris on the collets, thanks, they are the best.

I do not know why they are coming loose they are the German ones and I soldered the shafts with brazing silver solder and are hard as hell.

[Vortech C5]

After going back over the beginning of the thread and recalling the motor wind, I would DEFINITELY not run those motors on 6s with 4516/3s. I would expect to see current as high as 400A+ with that setup.
Personally I think those motors would be better suited for a 5s setup in this boat.

Hi Keith,

This boat came to me. To me, its the PERFECT combo. Randy at BBY did an exceptional job. The boat is built to perfection. Set up wise, we are running 47mm CNC props. The boat rockets to astronomical speeds and runs for 6 minutes. Needless to say, its a site to be seen. We are running twin MGM 280amp units. Thanks for your feedback!!!

Ray

[Cooper]

Are these the ones your using?

[keithbradley]

It ended up running rock solid except for the couplers they keep coming loose. They de-tuned it to 78MPH I think that was to save the whole boat. I was not there for the runs and would not want to run it my self. But the customer is happy and that is all I really want.
Good to hear! I assume they didn't end up running 6s after all?

I think running in that speed range is a good idea. Too pretty of a boat to risk smashing up (I am a total hypocrite for saying that, I know). This is probably the best paint job on a MHZ 114 that anyone will ever find...absolutely awesome looking! If you have any pics of it finished, post 'em up!

[RandyatBBY]

Are these the ones your using?
Yes

[keithbradley]

Hi Keith,

This boat came to me. To me, its the PERFECT combo. Randy at BBY did an exceptional job. The boat is built to perfection. Set up wise, we are running 47mm CNC props. The boat rockets to astronomical speeds and runs for 6 minutes. Needless to say, its a site to be seen. We are running twin MGM 280amp units. Thanks for your feedback!!!

Ray Post some pics!!!

Any chance you're bringing it to the Lake of the Ozarks shootout in a week and a half? There will be a lot of nice boats there...should be a good time!

[Cooper]

Humm, since I switched to them I have not had a slip on either end. What's slipping? Motor or flex?

[RandyatBBY]

Good to hear! I assume they didn't end up running 6s after all?

I think running in that speed range is a good idea. Too pretty of a boat to risk smashing up (I am a total hypocrite for saying that, I know). This is probably the best paint job on a MHZ 114 that anyone will ever find...absolutely awesome looking! If you have any pics of it finished, post 'em up!

I wish I was as good of painter as Pro Painter, If I only knew how to buff out paint. I can buff silver gold and Stainless steel, But not paint!

[keithbradley]

I wish I was as good of painter as Pro Painter, If I only knew how to buff out paint. I can buff silver gold and Stainless steel, But not paint!

Me too! Not too many people have that level of talent. I'm not even sure he knows how good he really is! :noidea:

I've seen some pics of your paintwork, and you do quite well yourself Randy. You definitely have some skills with the airbrush, and I think with each one you post they keep getting better!:thumbup1:

[RandyatBBY]

Me too! Not too many people have that level of talent. I'm not even sure he knows how good he really is! :noidea:

I've seen some pics of your paintwork, and you do quite well yourself Randy. You definitely have some skills with the airbrush, and I think with each one you post they keep getting better!:thumbup1:

Thanks I have been painting since I was 13 years old. I try real hard:blush:

Ya know if they quit changing the paint it would not be so hard.

[nemz305]

i always use the aeromarine 3 peice couplers never had a issue

[JohnZ]

Just got a look at Randy's workshop...and I thought mine looked bad.
A neat desk is the sign of a sick mind.....

[JohnZ]

Just got a look at Randy's workshop...and I thought mine looked bad.
A neat desk is the sign of a sick mind.....

[RandyatBBY]

Just got a look at Randy's workshop...and I thought mine looked bad.
A neat desk is the sign of a sick mind.....
My mind is real healthy. Most of the time getting a job done is more important than cleaning the desk and I do know ware everything is when I can not find the tool or what ever I clean the shop untill I find what I am looking for.:biggrin: