Hello mate they do sit close in the ideal world you should seal the rad to the ic and the ic to the slam panel giving the air only one place to go, through the rad. they do make the car warm up abit quick when static but this is not helped by the turbo being so close but a turbo jack and wrapped manifold would help to, what you have to remember is you have a big object infront of your rad which is not the best when static, if you dont have a alloy rad then it would be worth it as it will still get hot but it will cool of alot quicker once you are back moving another option is taking the water off the turbo if you dont have a roller bearing turbo and just give your engine a little more time to warm up before nailing it and also abit more time cooling down to