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Suby water/air i/c pump question
GTMac - November 17th, 2008 at 08:21 PM

Have a standard Suby i/c pump running in my fasty. It seems to have stopped, may have been because I had ignition on for ages and was mucking around with front hoses and may have crimped one which would have stopped water flow.

Have not pulled apart yet but I remember reading somewhere on RSLiberty forum that these things are pretty indestructable and some $2.50 part usually burns out. Does anyone know anything about these or possible fix solution.

Thanks Andrew

helbus - November 17th, 2008 at 08:54 PM

i/c pump? What is it?

GTMac - November 17th, 2008 at 09:42 PM

Quote:
Originally posted by helbus
i/c pump? What is it?


Sorry I have the RS Liberty air to water intercooler so it has its own seperate radiator up the front and the pump circulates the cooler water into the intercooler. Its stopped so without it it will only have the water that is sitting in there and this will soon heat up from engine heat soak.

boof2332 - December 14th, 2008 at 04:01 PM

Hey mate, talk to Paul who did the wrx conversion with me and Jack. he used to be an auto electrician and has re built his one and said it was cheap.

I think he is on here as 1303.

Matt

1303 - January 6th, 2009 at 08:24 PM

Hi GTMAC

I have a water pump if you need one, PM me.

To be honest though I would not recommend using the orginal unless you havent exceeded the standard water capacity much. These pumps are designed to run the the standard ECU controlled resistor which makes them run slowly, they only get full voltage when the TPS is past about 80% from memory. When running them in a conversion with aftermarket ECU, there is no control for the resistor so most people would run them with full 12 volts, which leads to premature failure as they were not designed for it.

If you do use a resistor to reduce the speed so it lasts longer, but have increased the water volume of the system, they dont have enough punch to circulate the water anyway.

Moral of the story, by an aftermarket one. I think Jak runs a small davies craig, which I would imagine works well. I use a 12volt garden pond pump which is designed for constant use & pumps heaps of volume at low pressure, it was around $120 from memory.

Cheers

Paul

GTMac - January 8th, 2009 at 01:19 PM

Quote:
Originally posted by 1303
Hi GTMAC

I have a water pump if you need one, PM me.

To be honest though I would not recommend using the orginal unless you havent exceeded the standard water capacity much. These pumps are designed to run the the standard ECU controlled resistor which makes them run slowly, they only get full voltage when the TPS is past about 80% from memory. When running them in a conversion with aftermarket ECU, there is no control for the resistor so most people would run them with full 12 volts, which leads to premature failure as they were not designed for it.

If you do use a resistor to reduce the speed so it lasts longer, but have increased the water volume of the system, they dont have enough punch to circulate the water anyway.

Moral of the story, by an aftermarket one. I think Jak runs a small davies craig, which I would imagine works well. I use a 12volt garden pond pump which is designed for constant use & pumps heaps of volume at low pressure, it was around $120 from memory.

Cheers

Paul


Thanks Paul, did exactly that, Jak told me how happy he is with his and went and bought the same. Best price I found anywhere was from American Autos at Homebush.

ian.mezz - January 8th, 2009 at 06:37 PM

Quote:
Originally posted by GTMac
Quote:
Originally posted by 1303
Hi GTMAC

I have a water pump if you need one, PM me.

To be honest though I would not recommend using the orginal unless you havent exceeded the standard water capacity much. These pumps are designed to run the the standard ECU controlled resistor which makes them run slowly, they only get full voltage when the TPS is past about 80% from memory. When running them in a conversion with aftermarket ECU, there is no control for the resistor so most people would run them with full 12 volts, which leads to premature failure as they were not designed for it.

If you do use a resistor to reduce the speed so it lasts longer, but have increased the water volume of the system, they dont have enough punch to circulate the water anyway.

Moral of the story, by an aftermarket one. I think Jak runs a small davies craig, which I would imagine works well. I use a 12volt garden pond pump which is designed for constant use & pumps heaps of volume at low pressure, it was around $120 from memory.

Cheers

Paul


Thanks Paul, did exactly that, Jak told me how happy he is with his and went and bought the same. Best price I found anywhere was from American Autos at Homebush.


the best price was ?????? $$$$$

GTMac - January 9th, 2009 at 03:50 PM

Ian, I knew someone would ask that and I was racking my mind to think what I paid. Just looked on their online site, it was $174. Nice little unit. Made my enquiries and actually rang Davies Craig technical about it. The unit is German made Bosch and sold under licence by them. They have had no returns whatsoever (unlike the old ones they supplied) and its rated for 300,000km continuous use which is a sh#t load of hours.