I was in the midst of putting together my first water-cooling system and the radiator i had my eye set on is no longer in production (feser 3x 120mm). So now I'm looking for a good substitute. Any suggestions? Hear are the two alternatives i was looking at.
The thing is Feser is no longer making rads right now so its impossible to find a 3x 120 i mean i need two rads loop one is reservoir, mcp 355, and a EK supreme HF CPU block. While loop 2 has reservoir, mcp 355, and two EK 5870 GPU blocks.
You can always go back to water cooling roots and use a heater core or something from summit racing. I built one using a trasmission cooler and its been in service for about 4 years or so without any changes. This is very similar to what i am using and you can stack it if you want as well. http://www.summitracing.com/parts/FLX-4120/
Its more fun to mention that your radiador is from Summit Racing as well anyway.
You can go that route, as I have done the same thing. However, you run into the issue where the tubular surface area is less than that of the rectangular, multi-tube design of a heater core or a typical WC radiator. Yes, these oil/transmission coolers work well and have decent flow, but ultimately will remove less heat due to the decreased surface area. Now, I suppose you could start calculating that the tubed design covers more linear length, but you'd also need to account for the multiple channels in a heater core or WC radiator. I'd still take either of the latter over a trans cooler.
Heater cores from a 70's Pontiac Bonneville are quite common and are similar to that of a 220 rad...maybe closer in performance to a 320...but cost almost the same. Once you start adding in the fact that you'll need to solder on fittings, paint and a way to mount them...you negate the savings over a WC radiator in many cases. It just depends on your preference and how well you can integrate into your system.