The CH-5 in the XP-47H (water cooled, inverted V-16, Chrysler XI-2220 engine test bed) used air-to-water intercoolers and aftercooler but I've been unable to find the weights of the components. Some information on the GE family of superchargers, but not the CH-5, can be found here:
https://www.enginehistory.org/Turbochargers/GETurbochargerData.jpg
The Boeing/Fisher XB-39 (Allison V-3420 engines) flew a short time with CH-5 turbochargers which I believe used air-to-water intercoolers.