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Water pump: plastic impeller or metal?

 
Old 01-21-2014, 08:32 PM
  #31  
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We've had a product for this for a while now. The inconsistencies in the blocks keeps us from distributing it. We can even apply it proactively with a new pump with a metal impeller. It can require machining to fit, but that machining can be done in-car with a fixture, cutter and a big enough drill.

I'd hate trying to support people on this one so it hasn't made it outside the Flat 6 facility.
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Old 01-22-2014, 07:18 PM
  #32  
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Hi guys,
I'm planning on doing the water pump when I get my car out of storage. Would you recommend doing a low temp thermostat at the same time?
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Old 01-22-2014, 07:30 PM
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Originally Posted by Zenski View Post
Hi guys,
I'm planning on doing the water pump when I get my car out of storage. Would you recommend doing a low temp thermostat at the same time?
Yes.
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Old 01-22-2014, 08:39 PM
  #34  
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Here is the thread from the 928 board, it is not for the beginer DIYer. https://rennlist.com/rennforums/show...pair+procedure
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Old 01-22-2014, 08:48 PM
  #35  
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That's similar to what we've done for the M96, but with some changes. It's the only way to solve the issue. One distributor wants to take the product we created and couple it with a metal impeller water pump. If they'll deal with the headaches of support I'll consider it.
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Old 01-23-2014, 09:43 AM
  #36  
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Is the LN the only option for a low temp thermostat and do you need the instal/removal tool?
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Old 01-23-2014, 10:31 AM
  #37  
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Originally Posted by Zenski View Post
Hi guys,
I'm planning on doing the water pump when I get my car out of storage. Would you recommend doing a low temp thermostat at the same time?
Oh boy, here we go again...
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Old 05-31-2016, 12:10 PM
  #38  
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delete. reply on wrong post
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Old 05-31-2016, 01:36 PM
  #39  
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Replaced my water pump in an emergency situation with one from O'Reilly's (gasp). Intended to swap it with the Pierburg asap, but it failed before I could even do that. 1000 miles exactly. Thanks O'Reilly's!
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Old 05-31-2016, 06:05 PM
  #40  
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Go with a Pierburg pump, that's who makes them for Porsche.
http://www.warehouse33auto.com/parts...er/99610601157


-Jason
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Old 06-01-2016, 06:36 PM
  #41  
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Originally Posted by Gulliver View Post
Replaced my water pump in an emergency situation with one from O'Reilly's (gasp). Intended to swap it with the Pierburg asap, but it failed before I could even do that. 1000 miles exactly. Thanks O'Reilly's!
Holy crap! Did you relay that information back to 0'Reilly's?
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Old 06-01-2016, 06:37 PM
  #42  
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Originally Posted by Warehouse33.net View Post
Go with a Pierburg pump, that's who makes them for Porsche.
http://www.warehouse33auto.com/parts...er/99610601157


-Jason
I somewhat recently bought one from Jason, but haven't installed it yet.
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Old 06-02-2016, 10:56 AM
  #43  
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Originally Posted by Flat6 Innovations View Post
The particular pump will not move enough volume. I have been working with John Benson, Director of Davies Craig, the company that makes the EWP 115. The 115 has proven to only be adequate to act as a post cooling pump after the engine is shut down, or to boost volume when used in conjunction with the stock pump.

We are developing the EWP150 version of the pump now, to see if it is adequate as a sole unit, or not.
Have you found any issue with the OEM pump moving volume when you add a 3rd radiator (specifically the cup rad)? Would you recommend changing the pump more frequently if adding more cooling capacity?
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Old 04-13-2018, 12:12 PM
  #44  
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Default Waterpump failure 25k miles

Two times warnimg oberheated engine. Tsb for the coolant canister checked. Third time overheated engine waterpump thermostat failure. Repaired under warrsnty but engine had to come out so one week repair😡
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