Hey Guys anyone know what motor I can upgrade to with stock esc?

[Killah2469]

Hello people I'm new to this Rc boating hobby and I have a stock Rio ep. I am running a 7.4v 5000mah NiMh i would really like to upgrade the motor before the esc and was wondering what motor I can use with the stock esc even if I have to cut down runtimes to cool everything down. Any help would be greatly appreciated.

Here is a video of my second run with it.

[Killah2469]

Also what is a good brushed combo motor and esc to run in this boat I'd like to stay brushed for now.

[lenny]

Hey,
That was my first rc boat and did a lot of testing and modding to it,
I bought it used on CL for 75.00.
Brushed I had it running pretty good and used a 8.4v nimh on stock motor and esc and ran the sh*t out of it,
And the motor got hot a lot and burned the brushes up a few times on me.
The first Esc burned out in the stock location,
Pushing a p230 on 8.4v prop at that time.
The first Esc's were very weak that they put in it, Bad QC.
When I got the new esc Warranted I mounted it on top of the motor cooling coil,
It worked a lot better there in the open and stayed cooler and easy to check on too.
Top speeds about 20mph,

Than I modded and went brushless on 2s and then 3s gps at 32 mph and stable.

Hear some good modding info a friend of mine was doing AKA tunnelvision. http://forums.offshoreelectrics.com/...single-battery

This is mine on 3s.

TTYL.

[Make-a-Wake]

Throw a Graupner 8.4vBB in it on 4s and look out!!

[tlandauer]

The problem is that there is no really good brushed motor ESC anymore, everyone has gone brushless. How does the Proboat unit hold up? AQ really only handles 7.2 v although 8.4v will work for short sprints.
I also converted mine to BL before the stock ESC had any chance to fail, heck, I left the thing where it is, just tucked the wires away. I am lazy ( Lenny already knows that! ) and plus the location was hard to get, also helped my COG!

[Killah2469]

I gave up on the stock Esc and i went and got an XL-5 and a Titan 12t hopefully this will work alright. I figure if i want a brushless boat I'll buy one RTR. I managed to get my stock esc out and this is how i mounted everything.IMG_20121014_104016.jpg
I can't wait to try it out its raining here now but I hope it will stop soon. I also noticed I've heard the stock esc is 25a but mine says 30a on it and i wondered if AQ changed them for a bigger one from the first models.
Here is a pic of mine was yours the same?
IMG_20121014_114223.jpg
I'm also not sure what prop to use I have the Stock 42mm and I also have a 35mm and a 44mm if you have any suggestions for me on what to use that would be great.

[tlandauer]

I had bought a replacement ESC for another projuct, and yes, it looked the same. didn't remember what the label said though. I personally really like the 42mm stock prop.
I think the 35mm is a bit small and the motor can handel the 42mm w/o any problem. Try the 44mm but be sure to feel the temp on the ESC and motor.

[Killah2469]

I've heard some bad things about the 12t and i don't want to burn it up yet not till next season anyway then I'll get a better brushed motor any suggestions on that as well would be great to. I am going to order a speed 600 to see how that works also.

[Make-a-Wake]

That 12t is not going to like being run in a boat, its gonna get real hot as you seem aware of already. A graupner 600 9.6v would be a good choice, that way you can just use prop size to get the motor to run at its best...............the 12t is gonna need a real small prop to stand a chance.

[lenny]

Yes same esc,
And I tried the 12t and it did not work very good,
The s600 I liked a little better.
Some mods I did to mine,
Single rudder on the starboard side and sanded bottom of hull,
I am running a x440/3 prop and that gives less torque roll on the hull,
Home made trim tabs a little bigger than stock ones.

Pictures of 36 shockwave 053.jpgPictures of 36 shockwave 057.jpgPictures of 36 shockwave 056.jpgPictures of 36 shockwave 055.jpgPictures of 36 shockwave 054.jpg

[Killah2469]

I'm hopeing that running a 7.2 v nimh will keep it cooler so it won't burn up so fast. I also looked up the graupner 600 motors and there is like 4 or 5 of them which one should i use. The race 600 has the highest rpm but i'm not sure if thats what i need or a lower rpm motor.

[Killah2469]

what speeds did you get from the 12t and the s600 and did you run both of them on the xl-5?
I was also wondering what batteries did you run and how hot did the motors get?
when i measure the volts on my 7.2 volt nimh it reads 8.1 is that ok?

[tlandauer]

I am glad Make-a-Wake pointed out the negative sides of the 12t motor.
My bad, I thought you are running the stock motor but it is actually a sticker on the motor mount clamp. Sorry.

[Killah2469]

Well I went out yesterday and tried the new esc and motor here is the video I got. I also have a video of the first 1 min run with fresh 7.2v which I will upload later.
I kept picking up leaves on the prop thats why Ihave to keep coming in.

Here is the fresh battery video.

[Killah2469]

How much speed will i gain going from a 7.2v to a 8.4v?
Also will the xl-5 handle an 8 cell nimh?
Thanks alot for your help.