MADD CATT -41" fantasim saw build

[Cooper]

Well it's worth the try, I'm going through with the surgery. Attempting to re-solder the lead wire. Everything else looks fine. Will be insulating with some shrink to help prevent a short in case any of the shellack had melted off.

[Cooper]

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Ok,

Stop the drinking and driving or I will ship blacky up there to get you focused.
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Bring it biatch!!!! I've got reinforcements !!! Lol!!

[RaceMechaniX]

If the magnet lead wires are long enough to unbend and get outside the end bell, try that and directly solder the connectors on. Of course insulate the wires through the end bell with shrink tubing either way.

TG

[lenny]

Ok I will ship them both to you than and they can have some fun hanging out with your two,
This is Blacky's brother Slim having a drink at the same time,
Blacky was getting ready for his shower.

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Bring it biatch!!!! I've got reinforcements !!! Lol!!

[ray schrauwen]

I have added silicone fuel tubing to the wires jammed into the endbell so the wires don't bounce or chafe.

If the magnet lead wires are long enough to unbend and get outside the end bell, try that and directly solder the connectors on. Of course insulate the wires through the end bell with shrink tubing either way.

TG

[Cooper]

I have added silicone fuel tubing to the wires jammed into the endbell so the wires don't bounce or chafe.

I don't think the wire is long enough with some alterations to end bell for direct bullet soldering. Good idea on the tubing, I will do that. I think I may try and alter the end bell over winter if I don't move onto lmt's.

[Cooper]

Recent updates I have had a shaft bend causing some unseen failures. I didn't realize the prop shaft was very slightly bent and that resulted in bent flex, melted Teflon, and stuffing tube coming loose. So she has been in dry dock for a bit. I'm just now in the process of replacing stuffing tube and I decided to make the shafts out of hardened steel not stainless as the stainless is pretty soft. And I'm trying a one piece shaft/drive dog. In the length of shaft I'm out of tolerance by .007" After making this set I have a better machineing idea of how to get down to .003+\- the built in drive dog is tight where props have some persuasion to go on. I will be able to have prop and bullet or clinch nuts on complete shaft and balance before flex drive is glued. The best I can come up with for a truer running shaft assembly. Yea, I've had some time lately :). The props will be matched and made to go on one way only. A lot of work but the closest to true I think I can get. I know the weak link seems to be the shaft where it enters the prop hub but the one piece drive dog should bay far make up for that. But the hull has gone airborne about a dozen and half time at 100mph+ and not as much as a scratch. Reinforcing has worked out well. I have been pushing the drive line with props that started life as 465 but altered rake, pitch ending up as 52-57s. Only got to test once at 100+ and that's when I found the bent shaft. But she will be back out soon.

[cugino]

I don't think the wire is long enough with some alterations to end bell for direct bullet soldering. Good idea on the tubing, I will do that. I think I may try and alter the end bell over winter if I don't move onto lmt's.

Hi Cooper,

as you know i am using NEU motor in my HiPerf cat either. After some issues i am quite satisfied with NEU motors. Do you expect any noticable benefits with LMTs over NEU motors? I dont expect noticable benefits LMTs over NEU motors.

[iridebikes247]

perhaps a shorter motor for very high rpm setup? There is a guy running tp 4050L motors and getting 114mph its an hpr c5009. http://www.youtube.com/watch?v=WLVLmKEVAIQ
High rpm and long motors seem to be enemies it seems (of course rotor width becomes a problem too. eg: fat kid on a merry go round makes it way harder on maintenance staff). The lehner 3040 used in most high end 135cm boats is only 80mm long. I could be wrong but am curious your thoughts on this too.

I just got my props back from dasboata they're really nicely done I hope the mhz will make it over 100 mph but i'll probably need to actually buy a gps before I can confirm lol.

[Livewire121]

113mph at night....very brave!

[Cooper]

perhaps a shorter motor for very high rpm setup? There is a guy running tp 4050L motors and getting 114mph its an hpr c5009. http://www.youtube.com/watch?v=WLVLmKEVAIQ

I just got my props back from dasboata they're really nicely done I hope the mhz will make it over 100 mph but i'll probably need to actually buy a gps before I can confirm lol.

High rpm and long motors seem to be enemies it seems (of course rotor width becomes a problem too. eg: fat kid on a merry go round makes it way harder on maintenance staff). The lehner 3040 used in most high end 135cm boats is only 80mm long. I could be wrong but am curious your thoughts on this too.
I think the tp 4050 are 82mm long can. I've been very happy with the neu motors. I don't think the length matters on high rpm setups. BUT, I think a lot has to do with construction. On earlier versions of tp motors I had magnets break/fail. But the problem isn't with magnets but with the wrap. At the time the ones I had were wrapped with carbon tow and lightly epoxied. I was pushing them also but heat and rpm gave into the tow and started to unwrap. The neu motors and I think tp now too use Kevlar ribbon (or tow, width ?) then epoxied or secured somehow? But that make a huge difference in construction for rotors holding up under high stress stuff. For my runnings with this boat , amps and heat have been high but in acceptable range and these neu motors have held up very well. I'm surprised I haven't cooked one sooner. And for high amps, watts, heat, rpms it really was my fault I melted solder joints on lead wires. I normally don't run back to back and for more than 4 high speed long passes. My passes are from radio range to radio range (just shy, I know where it is). But that day I was happy to be testing some new props and didn't let things cool from run one and long session then right away back out and long run. You know just one more pass,,,,,,,,, how many times have I said to myself " if I would have just listened to myself and stopped then",,,,,,,,,, post some video of her going over 100, it's an addictive thrill!!!

[Cooper]

113mph at night....very brave!

He had a filter on the camera , it was super bright ! Lol!!

Yes, very brave soul!!!!!!! I can see running a pretty reliable boat at night but pushing 100+ wow! my luck I would have flipped, sunk, hit shore, or been driving the wrong way,, :)

[Cooper]

Hi Cooper,

as you know i am using NEU motor in my HiPerf cat either. After some issues i am quite satisfied with NEU motors. Do you expect any noticable benefits with LMTs over NEU motors? I dont expect noticable benefits LMTs over NEU motors.

I've been very happy with the neu motors. I am looking into lmt's for another winter build with a different kv range. But I don't have first hand with lmt so I thought about finding out. And I think lmt can out perform neu. Just my opinion as of now from others opinions and experiences.

[Savage Skidoo]

Looking good Cooper , i hope you get the drive line sorted out and back up and running .

[jcald2000]

Lose the Teflon in the drive line, it will twist and lock up your drive line and break thing eventually.