Results 1 to 6 of 6

Thread: Thermostats and electric water pumps

  1. #1

    Thermostats and electric water pumps

    Is it good or bad to run thermostats with electric water pumps? My 421 ci SBC currently isn't running one but because I live near Chicago I feel like it's necessary to warm up the engine quick. I have heard that at high rpms they fail?

  2. #2
    Administrator RACING JUNKIE bjuice's Avatar
    Join Date
    Apr 2003
    Greenville s.c.
    take out the center piece and run you the sheet metal plate with approx 3/4 will be fine..


  3. #3
    Senior Member EXPERT BUILDER
    Join Date
    Jan 2005
    im curious about this one too cause i have a mezeire hi flow pump and was wondering the same thing!!!any other imput???

  4. #4
    Senior Member EXPERT BUILDER
    Join Date
    Aug 2007
    Orient, OH
    thats what I have always done... take sidecuts and chop the 2 side bars and just put the ring in to restrict flow. Thats how my dragster with remote CSR pump and my truck with Mezier pump. Have had no cooling problems even in hot july-august.. 496 BBC in dragster, 406 SBC in truck.

    I hope this helps
    Josh VanHorne

    1964 Chevy Nova
    Worlds quickest and fastest tow truck. (9.92 @ 137)

  5. #5
    Thanks guys. It makes sense just to create enough of a restriction. My car actually has the heater core still and was gonna hook it up to see if I could actually pump in heat for those cool spring or fall nights.

  6. #6
    Senior Member RACING JUNKIE
    Join Date
    Sep 2007
    Montvale, VA
    I always run a 160 stat to start cooling before it gets too warm.Also lets it cool down to a lower temp than a 180 will less restriction,to cool down quicker.I just drill two 3/16 holes on the outer edges to let more water thru than the factory bleeds.Works for me.
    "The problem with quotes on the Internet is that you cannot confirm their validity"- Abraham Lincoln

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
Copyright © 2005-2016 MH Sub I, LLC dba Internet Brands All Rights Reserved.

Designated trademarks and brands are the property of their respective owners. Use of this Web site constitutes acceptance of the
Terms of Use, Classifieds Disclaimer, Privacy Policy, and Cookie Policy