Electric Water Pump - Kawasaki ZX-10R.net
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post #1 of 22 Old 08-27-2014, 09:48 AM Thread Starter
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Electric Water Pump

anyone done the electric water pump mod before?
any pics to share?
how is hose to oil cooler routed?
how is the original water pump sealed thereafter?
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post #2 of 22 Old 08-27-2014, 04:41 PM
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I plan to do it (got the pump), but its become complicated due to the radiator pipe setup I'm using, so shelved it for a while.

Cheers,
Brian


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post #3 of 22 Old 08-28-2014, 01:48 AM
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Quote:
Originally Posted by foursix View Post
anyone done the electric water pump mod before?
any pics to share?
how is hose to oil cooler routed?
how is the original water pump sealed thereafter?

I too have purchased an electric water pump but haven't installed it yet. You can make a "T" aluminum pipe and connect the small hose that goes to the oilcooler.

You can search at companies that sell drag parts for water pump block off caps,dme sells a water pump block off for the ZX14 but I don't know if it will fit the 10 ( probably not)

http://shop.dmeracing.com/ZX-14-Wate...mpBlockOff.htm


Thermostat should probably be removed if you run a small pump
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post #4 of 22 Old 08-29-2014, 08:53 PM Thread Starter
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any recommended specs for pumps? match flo rate or slower?
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post #5 of 22 Old 08-31-2014, 07:52 AM
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I didn't quite get to that scientific level, as it would have first required measuring the flow rate on the OEM pump. However, I purchased a Davies-Craig EBP (electric booster pump) - pic attached of it mounted on my old ZXR750 superbike, but I never got to test it on this bike. A mate has the same pump on his ZX7RR superbike, and it had no problems with a full-kitted engine and a CBR1000RR radiator.

Cheers,
Brian
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post #6 of 22 Old 09-01-2014, 02:01 AM
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Quote:
Originally Posted by foursix View Post
any recommended specs for pumps? match flo rate or slower?
It's difficult to match the flow rate of the stock pump at high rpms,but it's not necessary either.

The stock water pump may flow 100+ lt/hr at redline but the davies craig booster pump with the 15lt/hr is ok for our bikes.

Davies craig also sells a controller that controls the electric pump and helps keep the temp to where you set it. It cycles the pump on/off during warmup to help get to target temperature quicker,then if the temperature tends to rise the pump is working at full speed,but if the temperature drops below a certain point it slows it down to get to the target again.


I bought a small heater pump from a ΒMW SUV to do the tests,if there are any measureable gains ( 2-3 hp maybe?) I will then buy the davies craig booster pump and controller and make a permanent setup.
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post #7 of 22 Old 09-01-2014, 03:11 AM
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But the controller weighs more to install ... :) Why not just leave the thermostat in place, to do the same thing ?

There should definitely be a hp increase, IIRC from an article In Performance Bikes in the late 80s where they used a GPX750 engine, it was calculated to use 2-5% (I forget now) of power produced by the engine.


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post #8 of 22 Old 09-01-2014, 11:50 PM
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Quote:
Originally Posted by greenman43 View Post
But the controller weighs more to install ... :) Why not just leave the thermostat in place, to do the same thing ?

There should definitely be a hp increase, IIRC from an article In Performance Bikes in the late 80s where they used a GPX750 engine, it was calculated to use 2-5% (I forget now) of power produced by the engine.

Because the small pump which draws only 1A doesn't like to push the water against the thermostat

OK it's a little heavier but for 2% increase in performance at the best ( 5% is not possible otherwise I'd gain 8-9 hp ) and better cooling at low speeds I'd sacrifice the 200-300 gramms.

With the electric water pump and no thermostat you don't need the bypass line going from the thermostat to the radiator directly,so you save a little weight from that also

Last edited by Balogiannis; 09-01-2014 at 11:54 PM.
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post #9 of 22 Old 09-02-2014, 04:24 AM Thread Starter
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http://www.daviescraig.com.au/Electr...2-details.aspx

its a centrifugal pump. so if the thermostat is opened or closed, should not affect the pump as pressure is suppose to be constant.

however, i like the idea of start stop which will require less electrical load.
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post #10 of 22 Old 12-01-2014, 05:04 PM Thread Starter
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i have completed the pump install. its a davies craig 9002(bosch actually). got an adapter and T-fitting(oil cooler) from ebay. total about 150 usd. had its power connected to tailight. also, removed the thermostat due to reduced flow rate.

the bike certainly runs cooler though my bike has a high comp done. i used to easily hit 98C to 104C. now able to maintain 74C to 84C. u feel less heat. i live in the tropics and its summer with occasional rain 365 days a year and i use the bike to commute daily. certainly a good mod.

takes longer to warm up. and u can also hear the water churning before start of engine.

as for the old pump, taped up the holes at present. got DME zx14 water pump plug. not sure if it fits. yet to try.

the other intent of the mod is to free up HP from the engine as water pump is isolated. (cant really feel that for road riding)
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