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Meziere Elect Water Pump, Experiences???

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Old Nov 14, 2004 | 04:13 PM
  #1  
LeMansBlue04's Avatar
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Default Meziere Elect Water Pump, Experiences???

Can anyone who has used the Meziere electric water pump share their thoughts on using this is a street strip car?

In particular:

1) Can it keep a 500+ BHP A4 car with a trans cooler and a DeWitt radiator cool?

2) When at the track, can it be used to cool down the car while it is parked?

3) If so how do you open the thermostat to allow water to circulate?
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Old Nov 14, 2004 | 04:36 PM
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I've had mine on for about 4000 miles now with no problems at all.
I wired in a relay, diodes, and switch to the pump to be able to run it with the car off if I choose to do so at the track.

Here's the link to the instructions I used to wire it up:
http://www.ls1howto.com/index.php?ar...5f5a64e9f91abc
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Old Nov 14, 2004 | 05:48 PM
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I would like to hear from owners who have used this pump on 400+ cubic inch, 500+ RWHP engines. A knowledgable source has mentioned to me that they will not properly cool the bigger motors.
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Old Nov 14, 2004 | 06:24 PM
  #4  
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Originally Posted by Z06-JIM
I've had mine on for about 4000 miles now with no problems at all.
I wired in a relay, diodes, and switch to the pump to be able to run it with the car off if I choose to do so at the track.

Here's the link to the instructions I used to wire it up:
http://www.ls1howto.com/index.php?ar...5f5a64e9f91abc
The link to LS1HowTo is great and gave me much of the information I was looking for.

I see that the thermostat is drilled with two 3/16 holes during the install. Will this really allow enough water to flow during a cooling cycle in the pits? OR .... Is it adequate to just get the engine cool enough to close the thermostat when using say a 170 thermostat?

I ask these questions because I am trying to determine if it can be used in the pits to cool the engine as a method of getting more consistant runs when bracket racing. If I could make my runs at about the same engine temps every time I run I can be much more consistant.
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Old Nov 14, 2004 | 08:18 PM
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Originally Posted by marco383
I would like to hear from owners who have used this pump on 400+ cubic inch, 500+ RWHP engines. A knowledgable source has mentioned to me that they will not properly cool the bigger motors.
I had the Meziere on my 427 w/F1R ... didn't last 800 miles. I broke the ring lands on #7 & #8. I was driving around town on a hot day (95+ degrees) and pulled onto the freeway....I jumped on 4th gear and KABOOM..... I heard pieces of the pistons bouncing out the tailpipe!!! I'm now using the new high flow Evans pump with their race coolant. If your spending the $$$ to build a big cube, high HP motor don't risk it with a Meziere.....you only gain about 5-7rwhp with the electric, and its just not worth it.
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Old Nov 14, 2004 | 08:56 PM
  #6  
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From: Camarillo CA
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I have one on my H/C motor that puts out 476/431 and it works awesome. I haven't seen over 190 degrees in traffic in a long time. However, on the bigger motors it does seem to fall short.
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