Added a second patch to my stock turbo rad.
Top tank was leaking very near the upper portion of the right/upper most fan shroud mount.
This is very near where the crack propogated to, but I thought would have sealed, except for the shrink as the epoxy stuff was heated and dried. Go figure that is where air was escaping when I pressure tested it with the hoses attached to the motor.
Purchased some plastic JB weld stick stuff (on sale at the local CT), and kneaded the two part roll, into a light blue glob and started to apply it to the cleaned and grooved/bastard file prepped plastic.. It's curing as I write this, and looks rather ... interesting. If this doesn't work, I have another iron in the fire, but let me see what happens here first.
Here is a lead on another quality Koyo rad option for GVR4's (confirmed fitment as we now know).
RedlineMotive.Com Searched 1991 GVR4. Metal tank, 2 row, Voila! Unfortunately they do not list a C53A rad option.
A New Zealand radiator option (the one shown is Lancer/Mirage specific based upon top hose fitting location and overflow spout angle on the rad cap neck.
click for Trevor Morris Radiators website listing. Have to make sure you are getting a two row core, so beware of that fact.
Evo 1-3 looks suspiciously similar, maybe the core is shorter, but could be shimmed; says it is a 2 row version versus the single.
Evo 1-3 Rad from NZ
Giving thought to finding out about some hints that I picked up concerning strut tube diameters being increased for the AUS and or NZ car market, versus the USDM market. If the diameter of the chromed strut tubes is indeed increased, then they did indeed get better suspension; while disregarding the electronic versions. Hmmmm .... gleaned this info from the Lancer Project IIRC. Putting to paper what was stuck in the back of my mind.