Just joined? Please introduce yourself.
Page 4 of 6 FirstFirst ... 23456 LastLast
Results 31 to 40 of 55

Thread: Cooling at idle issue

  1. #31
    Registered Member JT56's Avatar
    Join Date
    Mar 2013

    Member #:1608
    Location
    DFW Texas
    Posts
    1,209
    Glad its working for you

  2. #32
    Registered Member
    Join Date
    May 2012

    Member #:625
    Posts
    3,409
    A shroud appear to be one thing these cars missed when new, good to hear you got it handled.

  3. #33
    Registered Member Custer55's Avatar
    Join Date
    Feb 2015

    Member #:2442
    Location
    Custer, WI
    Posts
    640
    I finally had time to test blocking off the 6 cylinder radiator hose opening a few nights ago. I let the car idle in the drive way for about 15 to 20 minutes and the temp got up to about 182 degrees (It was a cool night, 65 degrees or so) I left the car running and added a temporary block off made of thin cardboard and Gorilla Tape. The temp dropped to about 177 with the hood open while I put the block off in place, but as soon as I closed the hood it slowly climbed back up to 182 withing 5 minutes or so. I then opened the hood, removed the temporary block off and let the car run with the hood open. With the hood open the temp went down to 173 after about 5 to 10 minutes. So the blocking off the opening basically made no difference. Having the hood open helped but it's obviously not a practical solution.
    I'm not sure if the results would be different on a hotter day, but that's the results of my test for what it's worth.
    Brian

  4. #34
    Registered Member Recycled Rumor's Avatar
    Join Date
    Apr 2017

    Member #:3391
    Location
    Rochester, MN
    Posts
    39
    I run my 55 without the hood. It still runs around 190-210 on the highway and will creep up slowly in town and up to as high as 230 at stop lights. I am looking for a guy in rochester who can bend me an aluminum shroud right now. Do you guys think it would be better to buy a new fan that comes with a shroud?

  5. #35
    Registered Member Recycled Rumor's Avatar
    Join Date
    Apr 2017

    Member #:3391
    Location
    Rochester, MN
    Posts
    39
    Although, now that I look at the situation closer, do you think that a shroud would make that much difference with mine?IMG_0305.JPGIMG_0306.JPGIMG_0307.JPG

  6. #36
    Registered Member BamaNomad's Avatar
    Join Date
    Nov 2016

    Member #:3217
    Location
    Rocket City, USA (Huntsville, AL area)
    Posts
    3,774
    Was that a 'quarter mile at a time' car? I don't have a great deal of experience cooling a big block, but it looks to me like you have a lot of restriction to air flow thru your radiator...??

  7. #37
    Registered Member Recycled Rumor's Avatar
    Join Date
    Apr 2017

    Member #:3391
    Location
    Rochester, MN
    Posts
    39
    It is set up to drag race, but with no hood there is very little restriction to the radiator at all.

  8. #38
    Registered Member Recycled Rumor's Avatar
    Join Date
    Apr 2017

    Member #:3391
    Location
    Rochester, MN
    Posts
    39

  9. #39
    Registered Member chevynut's Avatar
    Join Date
    Nov 2011

    Member #:115
    Location
    Fort Collins, CO
    Posts
    10,835
    Anything you can do to get more air through the radiator should help. If you can fit them, I recommend the dual 11" SPAL fans since they cover the entire core and pull around 2700 CFM and have an integrated shroud. My Derale dual fans are supposedly rated at 4000 CFM. A shroud might help, but my bet is your fan is inadequate, and for sure you can do better. IMO there's nothing that makes a big block inherently more difficult to cool.
    56 Nomad, Ramjet 502, Viper 6-speed T56, C4 Corvette front and rear suspension


    Other vehicles:

    56 Chevy 2-door BelAir sedan
    56 Chevy 210 4-door sedan
    57 Chevy 210 4-door sedan
    1962 327/340HP Corvette
    1961 Willys CJ3B Jeep
    2001 Porsche Boxster S
    2003 Chevy Silverado 2500 HD Duramax
    2019 GMC Sierra Denali Duramax

  10. #40
    Registered Member Recycled Rumor's Avatar
    Join Date
    Apr 2017

    Member #:3391
    Location
    Rochester, MN
    Posts
    39
    I'll see if I can find a shroud that fits before I spring for the dual fan system. Fingers crossed.

Page 4 of 6 FirstFirst ... 23456 LastLast

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •