Water to air intercooler setup
In an effort to improve the long term performance of this AW11 I decided to remove the factory intercooler and install a water to air intercooler instead. I also decided to change the original location and install the intercooler in the boot.
A turbo or supercharger heats the air up during the process of forcing more air into the throttle body. A water to air intercooler is a great way to remove the additional heat from a forced induction air intake. Other systems that achieve similar results are water injection or alcohol injection.
While an injection system is simpler, I like the idea of reducing the over all heat soak of the engine by relocating the intercooler and having a plumbed water system to the front of the car where the radiators are mounted.
The intercooler in question was bought off ebay and it only required some minor modifications. We welded a bracket to the rear of the unit.
The radiators were another ebay deal (sensing a theme here?). They are designed for a motorcycle and had a small enough profile to be mounted upfront without interfering with air flow to the radiator.
Some good quality radiator hose finished the job aided by a 12v pump to circulate the water at a pace that allows it to take the heat away.
The silicone hoses were purchased off ebay as was the polished ali-tube. Annoyingly I didn’t think about the engine sucking the air through on idle which caused the silicone joiners to pinch and buckle. So I had to cut rings out of the left over ali-tube and reenforce the internals.
Still after all the effort I’m confident that the Mr2 will have better long term performance.