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    Results 1 to 9 of 9
    1. #1
      Join Date
      Oct 2016
      Posts
      101

      LQ9 with Cam and AC, Which Rad and how much CFM will I need???

      I know this has been talked about before but I'm new to PT and I need some good information.

      I need help picking a new aluminum rad and which fans will work best for my application.

      Going to be swapping an LQ9 with 600 lift cam into my F-body with Vintage AC
      and I'm wondering what size fans I will need to adequately cool the engine with a
      new 2 row LS swap aluminum radiator, or will I need a 3 row rad?
      The engine makes about 430-440rwhp

      I've been asking around and have been getting all kinds of recommendations.

      Some say 2200-2500 cfm is good but others are telling me that I'll need 3000-3200 cfm
      to cool the engine properly

      I've read a large 16 inch single fan is good but others say I'll need to jump up to dual 12 inch fans

      Been looking at Griffin, Entropy, RnD, Champion, Northern and Cold Case.

      What has been working for you guys?

      Please chime in.

    2. #2
      Join Date
      Nov 2006
      Location
      Mountain Springs, Texas
      Posts
      4,488
      Country Flag: United States
      I have used several Entropy rads with good results. Same for their two speed fan controller.

      Don
      1969 Camaro - LSA 6L90E AME sub/IRS
      1957 Buick Estate Wagon
      1959 El Camino - Ironworks frame
      1956 Cameo - full C5 suspension/drivetrain
      1959 Apache Fleetside

    3. #3
      Join Date
      Oct 2016
      Posts
      101
      Quote Originally Posted by dhutton View Post
      I have used several Entropy rads with good results. Same for their two speed fan controller.

      Don
      Don

      What size fans come with the Entropy LS rad? Dual or single? How many CFM?

      How does the 2 speed fan controller work?

    4. #4
      Join Date
      Nov 2006
      Location
      Mountain Springs, Texas
      Posts
      4,488
      Country Flag: United States
      Quote Originally Posted by hp jnkey View Post
      Don

      What size fans come with the Entropy LS rad? Dual or single? How many CFM?

      How does the 2 speed fan controller work?
      Info here:

      http://www.entropyrad.com/1967-1969-...-radiator.html

      Fan controller works by placing fans in series for low speed and in parallel for high speed:

      http://www.entropyrad.com/wiring-harnesses/cat_2.html

      Don
      1969 Camaro - LSA 6L90E AME sub/IRS
      1957 Buick Estate Wagon
      1959 El Camino - Ironworks frame
      1956 Cameo - full C5 suspension/drivetrain
      1959 Apache Fleetside

    5. #5
      Join Date
      Oct 2016
      Posts
      101
      Quote Originally Posted by dhutton View Post
      Info here:

      http://www.entropyrad.com/1967-1969-...-radiator.html

      Fan controller works by placing fans in series for low speed and in parallel for high speed:

      http://www.entropyrad.com/wiring-harnesses/cat_2.html

      Don
      Don, if I use one of these entropy fan controllers, will I still need an trinary switch from Vintage Air?
      Looks like this is the way to go.
      Fully adjustable, nice.

    6. #6
      Join Date
      Oct 2016
      Posts
      101
      Quote Originally Posted by dhutton View Post
      Info here:

      http://www.entropyrad.com/1967-1969-...-radiator.html

      Fan controller works by placing fans in series for low speed and in parallel for high speed:

      http://www.entropyrad.com/wiring-harnesses/cat_2.html

      Don
      Don, I have another problem, do you know who I can contact about this?
      I've tried getting someone to help but no replies.

      https://www.pro-touring.com/threads/...-to-contact-me

    7. #7
      Join Date
      Nov 2006
      Location
      Mountain Springs, Texas
      Posts
      4,488
      Country Flag: United States
      No idea. Larry is usually pretty helpful.

      Don
      1969 Camaro - LSA 6L90E AME sub/IRS
      1957 Buick Estate Wagon
      1959 El Camino - Ironworks frame
      1956 Cameo - full C5 suspension/drivetrain
      1959 Apache Fleetside

    8. #8
      Join Date
      Jan 2000
      Location
      Thousand Oaks California
      Posts
      10,028
      Country Flag: United States
      I'm sorry but I can't find any of your IP's on a blocked list. I'm still trying to figure out what's up.
      Larry Callahan
      Founder/Administrator of Pro-Touring.com, G-Machines.com and HostMyJunk.com
      To advertise on Pro-Touring.com click here

    9. #9
      Join Date
      Jul 2016
      Posts
      341
      Country Flag: United States
      I just installed my Entropy rad. Its awesome. My VA came with a binary switch. I will be using a Trinary switch to control my fans using the Entropy LS series fan controller.







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