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Suby water/air i/c pump question

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GTMac Fahrvergnugen

976 posts · joined Nov 2004 ·

#680087
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
1971 Type 3 Fasty - EJ20T

I love 242HP sleepers. 🤪

How many sets of lights does it take a $229k Carrera S to learn? 😂 UPDATE: Cayman S, M3, B4 now added to the list.

GTMac Fahrvergnugen

976 posts · joined Nov 2004 ·

#680111
helbus wrote: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.
1971 Type 3 Fasty - EJ20T

I love 242HP sleepers. 🤪

How many sets of lights does it take a $229k Carrera S to learn? 😂 UPDATE: Cayman S, M3, B4 now added to the list.

boof2332 Custom Title Time!

1,210 posts · joined May 2004 ·

#684454
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 Officially Full-On Dubber

250 posts · joined Sep 2003 ·

#687729
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 Fahrvergnugen

976 posts · joined Nov 2004 ·

#688118
1303 wrote: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.
1971 Type 3 Fasty - EJ20T

I love 242HP sleepers. 🤪

How many sets of lights does it take a $229k Carrera S to learn? 😂 UPDATE: Cayman S, M3, B4 now added to the list.

ian.mezz I never said, I could write or spell

3,913 posts · joined Sep 2004 ·

#688187
GTMac wrote:
1303 wrote: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 ?????? $$$$$
😂🤪😂🤪😂
car forums. where a lot of peoples good intentions end up taking a good old car off the road forever never ever to see the road again. 🥲

GTMac Fahrvergnugen

976 posts · joined Nov 2004 ·

#688390
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.
1971 Type 3 Fasty - EJ20T

I love 242HP sleepers. 🤪

How many sets of lights does it take a $229k Carrera S to learn? 😂 UPDATE: Cayman S, M3, B4 now added to the list.