Quote:
Originally Posted by MikenOH
...adding a third radiator is a good way to go ...
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The S model already has the third (middle) radiator as stock along with the larger oil cooler.
Before you start fabricating a new cooling system, you might consider the following;
1. Improve air flow: Take a look at using a different nose (like a GT-3) that has larger inlet air ducting and better output air flow for the existing cooling system.
2. Improve radiator efficiency: Consider replacing the old stock radiators with a new higher efficiency radiator. Old radiators are known weak links in any cooling system.
3. Increase thermal capacity: Consider adding an oil sump extension to increase oil capacity and thermal capacity. All Porsche engines use oil cooling to some extent.
4. Increase oil cooling: Now that you have more oil, consider adding an external oil cooler. Take a look at locations where other Boxster spec cars place the external power steering cooler; this location in the rear might also work for an external oil cooler.