What LS Swap Radiator to use?

Discussion in 'High Tech Retrofits' started by ChrisK, Jun 5, 2019.

  1. SPG

    SPG Bumblebee Builder

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    think that c&r has the capable cooling capacity for use on a super charger? or should that get a dedicated rad
     
  2. 76z28

    76z28 Veteran Member

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    While you're probably right, my car is a street car I am trying to have fun with. I don't need an oil cooler or a power steering cooler. I am going to try the jegs, and in the future I will go to an electric fan. Any of these will be an upgrade over my current 4 core carquest brass radiator(and more expensive to begin with).
     
  3. badazz81z28

    badazz81z28 Veteran Member

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    I understand, my car is a street car too, I just track it too. I will be selling my DeWitt soon
     
  4. 76z28

    76z28 Veteran Member

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    Is the dewitt a dual pass(with the inlet and outlet on the same side)? I may be interested if shipping doesn't kill me(I am in CA)

    If it is the one in the pictures I am definitely interested!
     
  5. berg2695

    berg2695 Veteran Member

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    The last time I checked, the Dewitt LSX radiator was the only dual-pass unit that had the trans cooler on the passenger side. The stock lines should presumably fit up. Maybe there are other choices by now. When the time comes, I'm gonna get one. Also, they will sell you one without the the fans and shroud.
     
  6. 76z28

    76z28 Veteran Member

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    No need for cooler lines in the radiator here
     
  7. mrvedit

    mrvedit Veteran Member

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    I originally tapped a hole and added a fitting into the top of the LS thermostat cover, and then connected that to the steam tube.
    I now have a Dewitt LS swap radiator, partly because the company is 30 minutes from me. It has worked perfectly; I now also use an electric water pump.
     
  8. 76z28

    76z28 Veteran Member

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    What's your temp while driving?
    I was seeing 195-205 while driving which caught me by surprise. I expected 185... Which is my thermostat.
    It seemed to need the fans while driving which seemed backwards. It didn't come close to overheating but who knows.
     
  9. mrvedit

    mrvedit Veteran Member

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    I only see temps over 185F (my thermostat value) when I'm in stop-and-go traffic. Then it climbs to 195F at which my first fan turns on.

    The purpose of the steam lines/tube is to push out any air pockets that develop, mostly after a coolant flush.

    If you are seeing 195-205F, I would double check the thermostat value which is typically printed on it in C. 185F is 85C. If not already there, I also drill a 1/8" hole in the thermostat plate which "supposedly" allows enough circulation to help get hot coolant to the thermostat. It may also help purge air from the system.
     
  10. 76z28

    76z28 Veteran Member

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    That may be my problem. I'll buy a thermostat on the way home and put a hole in it. See what that does
     

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