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Thread: MHZ FOUNTAIN and CASTLE 1717 1580kV

  1. #31
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    Here is the MHZ Fountain

    Last edited by Alfa Spirit; 11-05-2010 at 02:00 PM.

  2. #32
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    Wonder if an x442 will be a good prop choice for my 40" Vee with the 1717 on 6s..........???

    At least a starting point....................

  3. #33
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    Quote Originally Posted by Make-a-Wake View Post
    Wonder if an x442 will be a good prop choice for my 40" Vee with the 1717 on 6s..........???

    At least a starting point....................
    I think bigger?
    I have the stock S225 on my Outlaw that I will keep on it when I try my 1717 on 5s and 6s
    .NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8s

  4. #34
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    Maybe so................i was wanting to start on the small side..........check temps etc.............and work up. It may well end up being a 445, 447 or s225............thanks.

  5. #35
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    I hope to be able to go upto a S230 and possibly a S235
    .NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8s

  6. #36
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    DISAR build a MHZ Racemaster, his hull is 1 meter long like the Fountain. A Castle 1717 on 6S will give too much RPM, I think 5S will be ok, around 30000RPM, 5S 2P (parallel) should be a nice setup
    Last edited by Alfa Spirit; 01-16-2012 at 12:03 PM.

  7. #37
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    What do you think about this hardware, lenght is 9cm ( 3,6"), is it enough for a 39" hull?
    This hardware is expensive, If you have links to cheaper hardware that' s great


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    Last edited by Alfa Spirit; 01-16-2012 at 12:04 PM.

  8. #38
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    The prop distance behind the hull is one big question. normally is 10%, but when I asked MHZ for the racemaster they said 55mm which is quite small I believe. I have it at 85mm and I use the eco trimax but I think that the speedmaster stinger is far better. I recommend the speedmaster stinger, very good quality, 83mm length and cheaper. 3/16 flex, teflon and 9/32" tube. the teflon just fits in the stinger very nicely.

    If you want longer distance you can install a distance piece on the transom or elongate the stinger, but need to find out how ...
    Twin Cat 135, Sprintcat40 (single-twin), DF 35", Maritimo, Mean Machine, SV 27
    http://www.rcfastboats.com/

  9. #39
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    I guess the 442 was too small, took my first run with my 40" fountain with the 1717 on 6s. Ran very well.............not a huge speed difference from the Feigao 580L but definately faster.............the thing is though, the 580L would come in at 125*, and the ESC fairly warm too. This motor came in after a 3 minute run at 78*..........yep...........78*. ESC was 83* and caps 89*, its a Seaking 180. This big boy wasnt even loaded up and i imagine that loading it would wake it up. I think the s230 mentioned by Brushless55 would be a good fit...........that or an Octura x447. I'll play with it.................

  10. #40
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    That motor will spin a MUCH bigger prop!
    Good luck with the Seaking on 6s though.

  11. #41
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    Quote Originally Posted by Make-a-Wake View Post
    I guess the 442 was too small, took my first run with my 40" fountain with the 1717 on 6s. Ran very well.............not a huge speed difference from the Feigao 580L but definately faster.............the thing is though, the 580L would come in at 125*, and the ESC fairly warm too. This motor came in after a 3 minute run at 78*..........yep...........78*. ESC was 83* and caps 89*, its a Seaking 180. This big boy wasnt even loaded up and i imagine that loading it would wake it up. I think the s230 mentioned by Brushless55 would be a good fit...........that or an Octura x447. I'll play with it.................
    Bam!
    this is very awesome, another great run on the 1717!
    let us know how the S230 or the X447 run. I will buy a prop for my OSE Brothers Outlaw after you run yours

    do you have a cooling jacket on your 1717?
    .NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8s

  12. #42
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    Quote Originally Posted by Brushless55 View Post
    Bam!
    this is very awesome, another great run on the 1717!
    let us know how the S230 or the X447 run. I will buy a prop for my OSE Brothers Outlaw after you run yours

    do you have a cooling jacket on your 1717?

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  13. #43
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    Quote Originally Posted by Make-a-Wake View Post
    what motor mount do you have?
    I am having Peter make a mount for me, but I'm not sure that jacket will fit?
    and what do you guess your speed to be on the run?
    .NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8s

  14. #44
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    Steve has jackets in stock now!

  15. #45
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    Quote Originally Posted by Rumdog View Post
    Steve has jackets in stock now!
    Outta stock by morning I bet!

  16. #46
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    Quote Originally Posted by DISAR View Post
    The prop distance behind the hull is one big question. normally is 10%, but when I asked MHZ for the racemaster they said 55mm which is quite small I believe. I have it at 85mm and I use the eco trimax but I think that the speedmaster stinger is far better. I recommend the speedmaster stinger, very good quality, 83mm length and cheaper. 3/16 flex, teflon and 9/32" tube. the teflon just fits in the stinger very nicely.

    If you want longer distance you can install a distance piece on the transom or elongate the stinger, but need to find out how ...
    Are you talking about this 3/16" Speedmaster Stinger Strut? http://www.offshoreelectrics.com/pro...os-stinger-str

    What 3/16" prop shaft and what 3/16" flex shaft work fine with the Speedmaster Stinger?

    Thanks

  17. #47
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    Alfa yes, this stinger, I believe that you have all the items needed for the shafting.
    Twin Cat 135, Sprintcat40 (single-twin), DF 35", Maritimo, Mean Machine, SV 27
    http://www.rcfastboats.com/

  18. #48
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    Thank you for your help DISAR, parts are on the way;

    The Speedmaster strut for 3/16'' look fine, What about the lenght 82,5mm?

  19. #49
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    Not sure if you seen my post on RR this is my current setup with uncooled 1717/1580

    40" AM Sprint Cat

    Etti HV 200 amp water-cooled ESC

    6S1P 30C 4500 Lipo

    X450/3 Prop detounged / 53MPH GPS no heat on anything

    X452 Prop detounged / 57MPH GPS no heat on anything

    I'm likin these motors!
    Last edited by K.R.Joye; 11-12-2010 at 12:36 PM.
    ~~~~~~~~`Mach 5 racing'~~~~~~~~~~~~
    ****2008/9 MMEU LSO, 2008 LSH CHAMP****
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  20. #50
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    Alfa :

    The Speedmaster Stinger is even better than the others.
    Why ?
    You can adjust not only the angle, but also the HIGHT of the shaft !

    Lenght : 10% is not a "rule".
    Works well on stepped mono's with a SAW-setup.
    For a normal setup/hull you don't necesseraly need 10%

  21. #51
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    The Castle 1717 with his water jacket is a monster, great !!
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  22. #52
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    Parts of hardware are on order The flexshaft and the coupler come from Dave Marles, out of stock at OSE
    Last edited by Alfa Spirit; 11-29-2010 at 01:57 PM.

  23. #53
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    Have this hull on the way for my Castle 1717. The old hull wasnt performing to my liking. Gonna run it on 6s............its 39.5".

    Question is, which prop? I'm thinking in the x445, x447, x642, x645 range. Any suggestions are very welcome and appreciated!
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  24. #54
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    Quote Originally Posted by Make-a-Wake View Post
    Have this hull on the way for my Castle 1717. The old hull wasnt performing to my liking. Gonna run it on 6s............its 39.5".

    Question is, which prop? I'm thinking in the x445, x447, x642, x645 range. Any suggestions are very welcome and appreciated!
    Looks like my Thundertiger OBL
    .NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8s

  25. #55
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    I think the x452. Those props are kinda small for a hull that size. I ran the m545 on a castle 2200 with no heat issues. The 1717 will push those props without breaking a sweat!

  26. #56
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    OK...........seems kinda big, but thats why i asked. Thanks!

  27. #57
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    I need help guys, how many rudders for the MHZ Fountain? I think that I will install two rudders for stability, what do you think?

  28. #58
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    Quote Originally Posted by Make-a-Wake View Post
    OK...........seems kinda big, but thats why i asked. Thanks!
    If it is the thunder tiger OBL, it can do well with small props as well. I ve seen one with a prather 220 and a 642. Depends on the position of the strut, if it is low small props can work, if it is high you need bigger props.
    Depends also on your esc, 225,230,445,645 are definately safe, then if temps-amps are ok bigger ones can be used
    Twin Cat 135, Sprintcat40 (single-twin), DF 35", Maritimo, Mean Machine, SV 27
    http://www.rcfastboats.com/

  29. #59
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    Thanks DISAR................ got my hull in, got all the parts too.................just gotta pace myself as i tend to wanna rush things a bit and i want this to be as close to perfect as i can get it.

    Not trying to hijack your thread alpha..........we both have 39" mono's with 1717 power and i thought id share mine as well.
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  30. #60
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    Quote Originally Posted by Make-a-Wake View Post
    Thanks DISAR................ got my hull in, got all the parts too.................just gotta pace myself as i tend to wanna rush things a bit and i want this to be as close to perfect as i can get it.

    Not trying to hijack your thread alpha..........we both have 39" mono's with 1717 power and i thought id share mine as well.
    I think yours make for 4 of us building a 39-40" mono with CC1717 power
    https://forums.offshoreelectrics.com/...ad.php?t=19194
    .NAMBA20...Caterpillar UL-1, P-Spec OM29, P-Mono DF33, P-Spec JAE, Aussie 33" Hydro-LSH, Sprintcat CC2028 on 8s, PT SS45 Q Hydro, PS295 UL-1 power, OSE Brothers Outlaw QMono 4-sale, Rio 51z CC2028 on 8s

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