Electric motor water cooling

[daniel hallman]

Fixing to buy a Pro Boat Shockvave 26 EP for a chase boat for the MISS BUDWEISER 1/12th scale Hydroplane that I just bought. I've talked to the techs at Horizon Hobby about swapping out the stock 550 that comes with the boat to a Trinity P2K2 motor to add a little more speed to the Shockwave. My main question is what can I do to water cool the motor and possibly the battery pack? Could this be done by adding a water pickup tube similar to the one on the Bud Boat and routing the tubing around the motor and battery pack then have an outlet for the cooling water mounted at the rear of the boat to create a roostertail effect?? Any info, ideas or if you know someone out there that makes this type of setup would really be appreciated. THANKS!!!Daniel M.Hallman, A.K.A. THE LAB RAT :cool: :confused: :cool:

[MikDee]

This boat is a bit heavy for an 05 motor, in my opinion, a 17turn Monster Max 550 style (E-Maxx) motor would be able to turn the prop at a higher rpm, with more torque & minimal heat buildup (as opposed to cooking any other 17t motor),,, or another good choice is the high torque LM Neo motors from Andrew G.,,, either way, water cooling is recommended!,,,

[Climate]

I would highly recommend that you try to keep your water cooling system as short as possible. A pick up behind the prop or from a small tube on the transom is all you need if you keep everything short. Exit the cooling water as close to the motor as you can to reduce resistance in the water line.
Do not worry about cooling your batteries. If they get that hot you have bigger problems that need to be addressed. You may want to look at cooling your speed control though.
The best motor cooling is actually 2 parts. The brushes, and the can. The brushes are the most important part to keep cool as that is where most of the heat is generated.
There are a few good articles on how to do this. If you can not find any info on it, let me know and I will see if I can find something for you.

[daniel hallman]

I;ve already talked with the service dept. and they tell me that the TRINITY P2K2 will interchange with the stock 550 can with no modifications, also running the P2K2 with a seven cell battery pack will put the top speed somewhere in the mid / upper 20 mph range. Really appreciate all of the replies, I'm just now getting back into R/C boats and man has everything changed!!!!!!!!!! :cool: :cool: :cool: D.M.H. , THE LAB RAT...

[Ron Olson]

What you really need is a 2-man inflatable boat. I use one for getting my dead boats and they are cheap, I have less than $40.00 into mine plus you can get a quick inflator for it if you don't have a lot of space in your vehicle. I have a small truck so I can slip it in above my R/C boats under my cab high cap. If you decide to get the boat anyway, there are a lot of water cooling kits available including ones from Traxxas and CEN that will do the job.

[laxmasta2039]

hey daniel if ur looking to buy a p2k2 ive got an unused one that is sitting rejuected on my shelf b/c i decided to use a one-motor setup for my boat after buying two motors. it's in perfect condition and i have a variety of springs and brushes that u can choose from to go with it. also have pics if ur interested.



joe

[Climate]

Here is a picture of an 05 type of can motor with brush cooling added. I think the Picture came from Andrew G but if not, I give credit to whoever it is from.

Peter.

http://www.climateboatworks.com/CoolSide.jpg

[laxmasta2039]

hey peter are you the owner of climate?
if so i have question about the blizzard [which i asked around about and got nothing but praise] if i put a water cooled p2k2 and 6 sanyo 2400's in it w/ an rchydros sc3 esc, and use the hardware kit u sell with it, would it be competitive enough to race with?


joe

[Climate]

Hey Joe,
The Blizzard can be quite fast on 6 cells. I have never run one of the P2K2 motors myself, but some of our customers have with good results. I have seen a N2 blizzard run a standard NAMBA oval in just over 1 min. with a 9 turn modified.
You will never do better than one of Andys RC Hydros speed controls. They are almost bullet proof.
The custom Fullers hardware for the Blizzard is some of Rays best work. It is light, strong and maintenance free.
Most people do not run on 6 cells in a hydro for very long when they know that 8cells will fit in there. The Blizzard when set up as an O hydro with a brushless motor can give you 50+ MPH. (closer to 60MPH)
The results from both the Canadian and US NAMBA nationals proved the Blizzard could run with the top boats out there.

Regards,
Peter

[laxmasta2039]

thanks peter. im glad knowledgable business owners like you take the time to actually go to forums and answer people's questions. the reason i wanted to know about running it w/ a p2k2 and 6 cells is because i have [like i said in a different post] a spare p2k2. the only functioning boat i have at this point is an xs cat that currently runs w/ a p2k2 on 6 sanyo 2400 cells, but with the help of a fellow member of my team, who jointly owns the boat along with one of his own, i will soon upgrade to two of those 6 cell packs and either a reedy fury modified 10 turn or p94 9 turn. i am trying to find a 'rigger that will be competitive w/ a 27-turn ROAR and 6 cells.

joe

[Climate]

No problem to answer your questions Joe, we are all hear to learn right?
Just for an example I helped a fellow racer learn today that when a boat is in lane one, it should not come in to lane 2 where I am riding up on it a great rate of speed.
I went right through him! :eek:
Actually he probably already knew that, but I was glad I could help him just the same.

As for a rigger that is competative with a 27 turn motor, It can be done, but riggers love RPM. At best, a good hand wound 27 turn will only turn out about 21 - 24000 unloaded. Stick a prop on it and you can reduce that by at least 5000 RPM.
If you want to run a fast rigger, you are better off with a low turn motor such as a 9 or 13 turn.
I have run a Blizzard on 6 cells and a 13 turn motor with good results. With 8 cells it was awesome.

Peter.

[laxmasta2039]

ok. i have just recieved offers for both my p2k2's [one from daniel hallman] so i the 27-turn thing isn't that important anymore. i'll talk to my team and see what they think about adding a blizzard to the mix. b.t.w. that sounds like a harsh way to learn that lesson!1 [lol!]

joe