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Improve water pump impela

Posted: Fri Jun 30, 2017 2:27 pm
by ron
Hi.. has anyone tried this water pump lmpela.. Is it worth the money?

Re: Improve water pump impela

Posted: Fri Jun 30, 2017 6:54 pm
by evan_calgary
Without any further information that is essentially a useless question.

Are you having cooling issues? If not, then no, its not 'worth the money'.

Who makes the impeller? You have only provided a picture.

Re: Improve water pump impela

Posted: Sat Jul 01, 2017 3:22 am
by ron
What I mean is, does this type of impela works much better, then the original ( you will get better cooling)

Ron

Re: Improve water pump impela

Posted: Sat Jul 01, 2017 4:00 am
by JonW
Assuming it does what it says, ie flows faster, then so long as the water is cooled adequately by the rad then it will flow cooler water round the motor, but... if your rad aint cooling the water properly or you pass the water thru too fast, its just moving more water round thats still hot. You need to know what you want with cooling i think... big rad, faster impeller, better 'juice' all make changes, but are they what you need?

Re: Improve water pump impela

Posted: Sat Jul 01, 2017 5:24 am
by ron
I got a rod like this on my bike

Re: Improve water pump impela

Posted: Sat Jul 01, 2017 11:23 am
by Bare
DIY Radiator? Whats that bit of drain pipe doing?
Faster water flow thru an engine is often Bad... , known for creating localized Hot spots and the grief that follows.
Water needs to be in contact with a hot surface long enough to absorb as much heat as it can.
One of the reasons God gave us thermostats.

Re: Improve water pump impela

Posted: Sat Jul 01, 2017 12:02 pm
by whyzee79
Do a fan mod instead.

Re: Improve water pump impela

Posted: Sat Jul 01, 2017 3:34 pm
by ron
This is my bike. So I should not go for the custum impela... it will not improve the cooling?

Re: Improve water pump impela

Posted: Sat Jul 01, 2017 3:48 pm
by Hooligan
ron wrote:What I mean is, does this type of impela works much better, then the original ( you will get better cooling)

Ron
Better cooling is hardly an issue with these bikes. LCs are terribly cold blooded and take forever to warm up. More cooling is not something that would help.

Re: Improve water pump impela

Posted: Sat Jul 01, 2017 8:33 pm
by JonW
you may well find that with USDs there isnt enough flow for a standard width rad, plus you dont say where you live... i live in Sydney and its hot (well it isnt today, but usually) so i have a wider and larger rad, but you may be in Siberia...

Re: Improve water pump impela

Posted: Sun Jul 02, 2017 7:07 am
by ron
Live in Denmark... and I normally run about 70/80 Celsius..(koso clock)whit a thermostat Ktm 55 degrees... and the temperature is about 25 Celsius..(not like Sydney)...

Re: Improve water pump impela

Posted: Sun Jul 02, 2017 5:44 pm
by silverstrom
If you have a 55C thermostat and you are still running hot you have a bigger problem than your impeller. If you run consistently at 70-80C you don't have a problem. Adding a cooling fan is always the best option if you run hot, such as when you are riding in the city in traffic. Adding a product like Water Wetter to your coolant does help as well.

Re: Improve water pump impela

Posted: Thu Jul 06, 2017 4:05 am
by ron
I just keep it as it is.. thanks..

Re: Improve water pump impela

Posted: Thu Feb 15, 2018 9:45 am
by jimrd
Hooligan wrote:
ron wrote:What I mean is, does this type of impela works much better, then the original ( you will get better cooling)

Ron
Better cooling is hardly an issue with these bikes. LCs are terribly cold blooded and take forever to warm up. More cooling is not something that would help.

I agree LC are terribly cold

four corner piston lock up a few times , they have to warm up , before you ride

Re: Improve water pump impela

Posted: Thu Feb 15, 2018 10:58 am
by RuZty
As mentioned earlier, there is no point improving cooling if you don't have heat problems. I have the same rad and a 55 deg C thermostat and the stock temp gauge never goes above halfway unless it idles for a long time. I do not ride in traffic, if you do a fan would help. Summer temperatures here are probably same or a bit higher than Denmark.
To answer your original question, if the impeller flows more coolant (without cavitating) it will improve cooling up to the radiators ability to pass the heat on to the environment. More mass flow of coolant and greater temperature difference between the coolant and engine will result in better heat exchange. The same happens between the radiator and air, a greater mass of air at a lower temp moving over the rad sheds more heat, which is why fans help at low speed and the engine runs cooler on cold days. Same laws apply to getting heat into the coolant and getting it out again.