The intercooler? I think it's 70x250x450mm.. the holes are 55mm inside.
It's probably way bigger than it needs to be. I haven't really driven the engine hard and long yet but after my 25 min test-trip earlier it was as cold as the bumper. maybe if i make some more boost it might be needed more
The radiator is one with 4 cores.. temperature average is less than 10c over a year, so cooling shouldn't be an issue.
I will make an aluminium heat-shield over the turbo and exhaust.