Apache 24 brushless some help needed.

[SweetZ28]

Z28,

I think you are now seeing what I was guessing a few posts back, to be the issue. Either the magnets in the motor are shot or the motor is just not powerful enough to push this boat to the speeds you are wanting.
Once you get a good motor that is right for your boat, I think you will find the limits of your current ESC like Jeff is talking about. For this boat to hit 30 mph plus, you will need to have components that will be able to support running at least 600 watts continuously, at least that is what my experience has been, with my brushless Apache. Unfortunately, it does cost additional money to get it setup right. I was able to get my components used of the swap shop, so it kept the costs down.
I hope you stick with it, this hull can be fun once it is dialed in.
Brad

Hi Brad actually the motor is very good when you turn the rotor you can feel it pop it has very strong magnets,
what do you think of this one? or for running 2S do you think i need even higher KV?
thanks

http://cgi.ebay.com/Marine-3600Kv-Br...item56363e7abc

[FE Wannabe]

Hi Brad actually the motor is very good when you turn the rotor you can feel it pop it has very strong magnets,
what do you think of this one? or for running 2S do you think i need even higher KV?
thanks

http://cgi.ebay.com/Marine-3600Kv-Br...item56363e7abc

Z28,

I would go with this one instead
click here

The one you had selected was only a 380 sized motor which wouldn't put out enough power. It looks larger because of the water cooling can. The one I have linked to above is a 540 sized motor which is roughly the same size motor as a Feigao L can like I am running. It is a few bucks more but the additional power is needed to run fast reliably.
Brad

[SweetZ28]

Z28,

I would go with this one instead
click here

The one you had selected was only a 380 sized motor which wouldn't put out enough power. It looks larger because of the water cooling can. The one I have linked to above is a 540 sized motor which is roughly the same size motor as a Feigao L can like I am running. It is a few bucks more but the additional power is needed to run fast reliably.
Brad

Thanks Thing is i got a 3300KV one now and wanted something a little faster on 2S and 6 cell NIMH.

[illz302]

just go with the Traxxas VXL3S Waterproof system its 4000kv iirc and it will handle 3s but 2s will still run great.

[SweetZ28]

just go with the Traxxas VXL3S Waterproof system its 4000kv iirc and it will handle 3s but 2s will still run great.

I could have swore the VXL is a 3500KV motor?

[Diesel6401]

I could have swore the VXL is a 3500KV motor?

It is 3500kv, your right z28. I was thinking bout putting this setup in my RIO.

[Diesel6401]

Hi heres my apache 24 converted to brushless..I am using a 3300KV motor and a 35amp seaking esc...I put flex cabe and turn fin as seen in photos.
My problem is for some reason it feels like it don't float on the water serface it runs deep...what can i do?
Also i have a CF 40 prop on it and the esc stays 89deg and motor gets 140deg max ... I am thinking maybe the prop is to big and the motors RPM is not getting to full Rpm? I see the proboat widow maker uses almost the same set up but uses a smaller prop?

Any help will be great.
Thanks

http://www.amazon.com/Pro-Boat-2900K...7016566&sr=8-3
This is the widowmaker (WM) motor, and the stock WM esc is only a 30a.

[SweetZ28]

http://www.amazon.com/Pro-Boat-2900K...7016566&sr=8-3
This is the widowmaker (WM) motor, and the stock WM esc is only a 30a.

yea that's a weak esc ...I thought mine was weak i bought and it's 35amp.

[SweetZ28]

Well here she goes...I am happy now!!

http://www.youtube.com/watch?v=sibSxqJVlUc

[FE Wannabe]

Well here she goes...I am happy now!!
http://www.youtube.com/watch?v=sibSxqJVlUc

Looking Good!

I am glad you got it going fast, after all fast is fun!

What did you use as a bearing in the outdrive for the propshaft to run in?
It kinda sounds like you might have a little binding going on in there. Make sure the flex cable has as little bend as possible going from the transom to the outdrive.
Have fun with it.

Brad

[SweetZ28]

Looking Good!

I am glad you got it going fast, after all fast is fun!

What did you use as a bearing in the outdrive for the propshaft to run in?
It kinda sounds like you might have a little binding going on in there. Make sure the flex cable has as little bend as possible going from the transom to the outdrive.
Have fun with it.

Brad

Hi it's a standard brass tubing that fit inside the original proboat plastic housing but it's long see pic on the top i think you can see it from the side.

Z28

[FE Wannabe]

What size prop shaft are you running? Is it a 3/16" stepped down to 1/8" or is it a 1/8" propshaft?
If it is a 3/16 stepped down to 1/8", I would recommend running a 3/16" stinger sleeve bushing in the outdrive to make it run smooth as glass.
Here are the steps to do it:

1. Heat up the 2 stock bushings in the outdrive with a soldering iron and slide them out. Becareful with the heat the outdrive is plastic after all.

2. Carefully drill out the plastic outdrive with a 1/4" drill bit. You may even try this by hand so that you will not break the outdrive. Use a sharp drill bit and don't force it.

3. Insert a piece of 1/4" brass tubing in the outdrive that is cut to fit the length and use CA glue to hold in place.

4. Buy this bearing and cut it to fit inside the 1/4" brass tubing.

5. Leave the bearing to free float inside of the 1/4" brass tubing and grease it well. The first couple of runs it may make some noise until it settles in, but then it should quiet down and run very smooth.

This is how I setup my Apache and it runs very quietly.

Brad

[SweetZ28]

Hi here is what i ordered from OSE is this it?
Product ID: oct-ocfhe1813
Product Name: Octura Coupler Flex Hex 1/8" to .130 Cable
Quantity: 1
Unit Price: $9.95
--------------------------
--------------------------
Product ID: oct-oc130L-24c
Product Name: Octura .130 cable system for 3/16" props
Quantity: 1
Unit Price: $9.99

[SweetZ28]

Well next I will try this and see how it goes... I ground down CF prop to 28.90 almost 29mm I am going to have to give it a test run.
Is it possible to balance these CF props ...it's prety small how do you take weight from a prop from the back side facing the boats rear?
dose it matter how you grind off weight also is there any area you should grings?

THANKS
See photo of ground CF prop

[FE Wannabe]

Well next I will try this and see how it goes... I ground down CF prop to 28.90 almost 29mm I am going to have to give it a test run.
Is it possible to balance these CF props ...it's prety small how do you take weight from a prop from the back side facing the boats rear?
dose it matter how you grind off weight also is there any area you should grings?

THANKS
See photo of ground CF prop

Normally with CF props they are so lightweight they would not need balancing. I would think if the two prop blades look pretty close to being the same size you should be OK.

I mentioned this in the PM I already sent you, but I thought I would elaborate a little bit more again in this thread. The 3/16" propshaft on your setup will keep you from being able to run the smaller Octura metal props. I think you may loose some of the effieciency of the prop design if you cut them down too much. I think the outer diameter of the props are where most of the cupping for the pitch is located, so you maybe reducing the pitch of the prop the more you ground it down.
I think you may want to consider getting the Octura 3/16 to 1/8" propshaft for .130 flex cable (part number oct-oc64pkgps) here on OSE for $3.95.. You can find it 3/4 the way down the page here.
Unfortunately, you will need an new drive dog and prop nut for 1/8" as well.
This will allow you to run all the way down to a Octura x427 metal prop for testing purposes.
Just my 2 cents.
Brad