Thread: Time Attack BRZ
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Old 11-25-2021, 03:10 AM   #275
Scooby Specialist
Member#: 190502
Join Date: Sep 2008
Chapter/Region: International
Location: Sydney, Australia

I have been a bit slack with the forum updates, sorry about that. Lots has been happening, I'm mostly working on the cooling system.

I started by trying to make my own radiator but that didn't go so well. The fabrication part was fine, I cut the core down to size and made some end tanks but when the time came to weld the end tanks to the core I had a lot of difficulty with the very thin and hard to clean aluminium.

So I took the easy way out and bought a radiator, its actually for a Mk4 Golf but the size was perfect for my needs and its a dual pass with inlets/outlets on one side like I need, although I will weld on some AN fittings.

I also ordered in all the bits required to build my header tank, swirl pot and connections for the electric water pump. Plus all the intercooler piping.

Next I got to work on mounting the heat exchangers in the car, I played with this a lot as like everything there are compromises to be made and things fighting to fit in the space available.
I ended up settling on a 45 degree angle for the heat exchangers, this should give both inlet and outlet ducting a reasonably smooth airflow with minimal change in angle.

Once the position was finalised I started making the end tanks for the intercooler core. I'm running HD clamps on everything too.

That brings me to the work I'm doing right now, I've fabricated a frame that will slightly space the intercooler off the radiator and also form a seal so all the air is forced to pass through both coolers. The frame has a mix of rubber seals and foam tape to prevent any air escaping. The radiator is riding on rubber mounts that are bolted to the intercooler. I will then run some tube out to bolt to the intercooler and support everything in place.

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