Anyone use Autoplumb 20AN radiator hose replacement?

Discussion in 'High Tech Retrofits' started by czizza, Mar 7, 2020.

  1. czizza

    czizza Veteran Member

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    I have the typical flexible chrome hose but this is the 2nd time it leaked and then after putting new rubbers ends on it which I thought I had super tight ... took a drive and the top hose popped out of the water neck. The neck even had a bead on it.

    So I am thinking of this:
    https://autoplumb.com/pages/20an-cooling-system-conversion-parts

    Anyone have first hand knowledge of this? Any other options you can think of?
     
    Last edited: Mar 7, 2020
  2. $ Mike 70 Z-28

    $ Mike 70 Z-28 Veteran Member

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    looks pretty slick
     
  3. badazz81z28

    badazz81z28 Veteran Member

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    Seems like more of a leak hazard. What’s the radiator neck to water pump relation? There’s got to be a correct hose
     
  4. czizza

    czizza Veteran Member

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    Does this give you an idea?
    [​IMG]

    [​IMG]
    [​IMG]
     
  5. badazz81z28

    badazz81z28 Veteran Member

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    Are you against an OEM rubber hose? This AN conversion is a little pricey too
     
  6. czizza

    czizza Veteran Member

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    On the lower hose yes, I had them pop off at the race track after a 7k run the suction over comes the hose then when you let off the suction stops and the rush of displacement pops the hose ... it is not 100% of the time but has happened to me 3 times.

    The top hose never had a blow off but leaks are killing me.
     
  7. G72Zed

    G72Zed Veteran Member

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    I have used the wide band clamps and have had no issues as of yet, typical chrome angled water neck and upper rad hose. I can send you some picks if you would like, LMK.

    For the bottom, I re-angled the rad outlet, double clamped and used the steel spring wired ribbed lower rad hose, does not implode at high sustained RPM's with the high GPM water pump. Leaks in that area on a road course can rear it's ugly head in a hurry.
     
    mrfleet12 and czizza like this.
  8. TCinthe6

    TCinthe6 Veteran Member

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    The AN stuff looks cool, but it's overkill (price and functionality).

    I used two 90 degree silicone elbows with some turbo hose clamps and an aluminum tube to join them. Was probably around $80 to 90 bucks for the upper hose setup and looks clean.
     
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  9. czizza

    czizza Veteran Member

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    Got pictures?
     
  10. TCinthe6

    TCinthe6 Veteran Member

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    Quick pic, but you get the idea.
    20200319_200816.jpg
     
  11. czizza

    czizza Veteran Member

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    That works! I will try that next.
     

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