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Civic Half rad swap???

Posted by Red_1gb, Apr 29, 2020

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  1. Red_1gb

    Red_1gb Probationary Member

    8
    3
    Joined Apr 22, 2020
    Saskatoon, SK, Canada
    Hey guys so I have my 92 eagle talon tsi awd and I noticed the rad has a pin hole in it and rad fan doesn’t work and when I got the car I seen a Honda half rad in the back(seems to be stock) it doesn’t look like it has any holes in it and I was wondering if I could swap it in to stop the car from over heating I just want to drive my car to a meet on the 1st it may and don’t know if I can use it any information would be greatly appreciated thanks guys!!
     

    275  1

    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  2. John Miller

    John Miller Proven Member

    168
    62
    Joined Jan 27, 2020
    Juneau, Wisconsin
    I may not be 100% correct, but here is my few cents worth. A civ half rad is designed to cool a 1.6 n/a single cam engine, not a 4g63t duel cam boosted engine. I think a half rad is smaller then a normal dsm radiator so you will lose a decent amount of cooling efficiency and alot of civic owners actually swap it out for a full size rad. Now assuming you can make it fit in and hoses not be crimped with the difference in ergonomics, I'm not sure how you are going to hook up the civ fans to the connector on the harness. If it is a pine hole then use some jb weld if you must or just go buy a new one. I personally would try not to do this swap, but what do I know.
     

    394  1

    1997 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
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  3. TheFlashDSM

    TheFlashDSM Supporting Member

    984
    190
    Joined Feb 18, 2010
    stony brook, New York
    also keep in mind that our blocks are cast iron, not aluminum like a hondas, so our blocks are way harder to cool. but with a thick aluminum honda rad say from mistimoto and a high flow fan with a proper fan schroud it will work
     

    Drag Race Build 3K  25

    1999 Mitsubishi Eclipse GSX
    awd · automatic · 2G DSM
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    Vdubzr32 likes this.
  4. Vdubzr32

    Vdubzr32 Proven Member

    381
    24
    Joined Nov 16, 2012
    Lake Hopatcong, New Jersey

    I have a civic rad 3 row on my 2g. Used 2g silicon hoses that i cut to fit. I will look for a picture. Works fine and tuned it fine with high flow Mishimoto race fan.
     

    Street Build 3K  13

    1996 Eagle Talon TSi AWD
    awd · automatic · 2G DSM
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  5. Turbocoup

    Turbocoup Probationary Member

    2
    0
    Joined Jun 5, 2011
    Clayton, North Carolina
    I ran a big core honda radiator/shroud and the biggest..baddest spal fan I could fit for a while.
    It cooled ok, but not well enough in the hottest summer months after a couple 3rd gear pulls.
    Went to a 2g aftermarket setup instead. Not sure if it'll cool better or not as the car is under construction.
    The honda stuff is now sitting in my garage.
     
  6. Stapl3

    Stapl3 Proven Member

    1,422
    40
    Joined Oct 27, 2004
    MI, Michigan
    I've used one for almost 10 years now. I wouldn't recommend it for a daily driver. You lean heavily on the fan to keep things in check. If it's above 90 degrees out I dare not bother. Sitting in traffic when it's 75+ out is basically an impossibility. Perhaps it would be better with an expensive core and legit fan and perfect duct work, but I doubt it. The surface area to cooling ability ratio is just not there.
     

    Street Build 2K  11

    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  7. Red_1gb

    Red_1gb Probationary Member

    8
    3
    Joined Apr 22, 2020
    Saskatoon, SK, Canada
    Okay awesome thanks guys yeah i guess it’s an upgraded Honda rad that was on a boosted integra and cooled that thing pretty well but not sure how it would work on the talon I guess I could give it a try and if it doesn’t work just grab a better one from rockauto
     

    275  1

    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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    TheFlashDSM likes this.
  8. TheFlashDSM

    TheFlashDSM Supporting Member

    984
    190
    Joined Feb 18, 2010
    stony brook, New York
    it doesnt cool our motors because we have cast iron blocks, any honda, acura boosted or all motors it will be fine for because there cast aluminum blocks. so dont daily a honda rad of any type
     

    Drag Race Build 3K  25

    1999 Mitsubishi Eclipse GSX
    awd · automatic · 2G DSM
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    Red_1gb likes this.
  9. Red_1gb

    Red_1gb Probationary Member

    8
    3
    Joined Apr 22, 2020
    Saskatoon, SK, Canada
    Alright thank you for the information man I appreciate it I’ll look into other solutions
     

    275  1

    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  10. Charliethatguy

    Charliethatguy Proven Member

    48
    13
    Joined Apr 14, 2018
    Madison, Wisconsin
    Might be a little late but Im running a 3 inch Honda half rad with a puller fan. Car has a 180 degree thermostat but never goes above 190. If you get a race quality Honda half rad it will pry be better but again this is a light to light car and not a handling/ daily build.
     

    Street Build 516  3

    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  11. Red_1gb

    Red_1gb Probationary Member

    8
    3
    Joined Apr 22, 2020
    Saskatoon, SK, Canada
    Fair enough man yeah I was either gonna run an upgraded half rad or go back to stock but I’ve heard that the block is cast iron not aluminum so it gets hotter requiring more cooling
     

    275  1

    1992 Eagle Talon TSi AWD
    awd · manual · 1G DSM
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  12. jed344

    jed344 Supporting VIP

    1,012
    168
    Joined Jan 10, 2008
    Waterville, Iowa
    Unless your absolutely need a half rad. Forward faced turbo ect, I would always run a full size. Cars on e85 also can get away with less cooling as it keeps cylinder temps lower.
     

    1K  38

    1997 Mitsubishi Eclipse GSX
    awd · manual · 2G DSM
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