Part 34: Water To Air Intercooler Installation, Part 1 - My 76 Mazda RX-5 Cosmo Restoration

It’s time for part 34 of my ’76 Mazda RX-5 Cosmo restoration. This time, I’m installing the water to air intercooler. I’ve installed and fabricated plenty of air to air intercoolers in my time but never a water to air unit. I chose to use water to air on the Cosmo because it meant that I could keep the piping as short as possible for the best boost response and because of the limited amount of room to run charge piping out to the front of the car due to the large rad and A/C condenser. It was definitely a l