I have been busy changing from my big and heavy water to air intercooler to an air to air intercooler which is fitted to the boot. 
The hypothesis is that I can get at least the same level of cooling with the air to air when compared with the water to air, though with less weight.
I haven't taken the old heat exchanger out of the car yet, though I estimate that the old system weighed at least 30Kg. The new system is around half that. 
The new system didn't cost me much money, because I already had the intercooler and pipes. All that I had to buy was the bottle, the pumps, and a couple of silicone joiners. I even already had the two fans. 👍
I have driven it twice with the air to air, and I have made improvements to the efficiency. I haven't tested my latest improvements yet though, which include a water spray.










 

 

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https://www.youtube.com/watch?v=abM5wk0dm84

 
https://www.youtube.com/watch?v=8ikpF6HsVOQ

Haha holy **** that looks great!

Let us know when you are going out testing the car as I will come and help out again. Hopefully we will see solid results. 

The supersprint series is on hold, so I will see if I can find a regular track day that is still running.

May be one of the sporting car clubs. Northern Beaches or Sutherland shire may having something on. 

Very nice work Glenn! keep the updates coming

Impressive changes, looking forward to the update after testing. Thanks for sharing the videos and providing insight into the water spray set up.