Model Boat Mayhem - Forum

Please login or register.

Login with username, password and session length.
Pages: [1]   Go Down

Author Topic: Water Cooling in a Perkasa  (Read 2274 times)

BlueWotsit

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 300
  • Location: Ilfracombe, North Devon
Water Cooling in a Perkasa
« on: August 31, 2006, 09:02:57 PM »

Im installing water cooling into my Perkasa and have a few questions only ever having installed cooling on single motor boats before

1. Is it ok to connect normal water cooling piping between the two aluminium cooling coils, and what is the best way of retaining it to them

2. Where is the best location on this model for the water outlet to be situated

cheers
Andrew
Logged

Stavros

  • Guest
Re: Water Cooling in a Perkasa
« Reply #1 on: September 01, 2006, 12:15:04 AM »

Cant see a problem with that I usually put the pipe on the cooling coil and than sear around the pipe with silicon just to make sure it can't fall off.Ads for where to place the outlet all mine are on the stern of the model so it looks like a bilge pump.|One suggestion is to connect the poss and neg of the pump to the same on the motor so as you increase speed the pump will increase as well ;)
Logged

Doc

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 327
  • Location: Oklahoma USA
Re: Water Cooling in a Perkasa
« Reply #2 on: September 01, 2006, 04:58:51 AM »

Where to put the outlet for the cooling? 
Somewhere that's a lower pressure than the inlet, which can be a number of places.  One option being where you can see that there really is an output, but not too high or the head pressure will be greater than the inlet pressure and no cooling.  The only 'problem' with wiring the motor and cooling pump together is that you will be splitting the current flow between the two.  If that's not really a problem, then why not?
 - 'Doc

Logged

BlueWotsit

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 300
  • Location: Ilfracombe, North Devon
Re: Water Cooling in a Perkasa
« Reply #3 on: September 01, 2006, 09:00:45 AM »

I was hoping to let gravity deal with the movement of water, as the inlet needs to be right underneath between centre prop and the end of the hull.

So possibly it looks like I might have to have a side exit, as hopefully the back end will be down when under power
Logged

malcolmfrary

  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 5,568
  • Location: Blackpool, Lancs, UK
Re: Water Cooling in a Perkasa
« Reply #4 on: September 01, 2006, 03:38:31 PM »

All of the model boats I have seen that have water cooling have the inlet directly above the propellor, and the outlet through the transom, without a pump.  They rely on the water flung outwards by the prop being pushed through the pipework, and seem to work very well.
Logged
"With the right tool, you can break anything" - Garfield

2772e

  • Simon
  • Full Mayhemer
  • *****
  • Offline Offline
  • Posts: 452
  • The Sea Shall Not Have Them
  • Location: Colchester, Essex
Re: Water Cooling in a Perkasa
« Reply #5 on: October 30, 2006, 07:36:43 PM »

Andrew,

You might want to try one of these, picture enclsosed.

Very small and minimum drag, fit in line with the prop shaft. Vacume from the aft hole pulls water through the first.

Very cheap, easy to fit, 2 4mm holes, seal and screw in.

I used them on mine. I have one either side for twin motors.

Regards

Simon
Logged
Rubbin is Racin!

Bluechrisp

  • Guest
Re: Water Cooling in a Perkasa
« Reply #6 on: August 28, 2011, 05:39:46 PM »

Andrew,

You might want to try one of these, picture enclsosed.

Very small and minimum drag, fit in line with the prop shaft. Vacume from the aft hole pulls water through the first.

Very cheap, easy to fit, 2 4mm holes, seal and screw in.

I used them on mine. I have one either side for twin motors.

Regards

Simon

Hello Simon,

Could you please send me a copy of the water cooling system you have

cheers

CP
Logged
Pages: [1]   Go Up