My fill is distilled water and chill charger. At present (separated system) I have a BMW power steering reservoir up front to fill and bleed the system. With the leaky intercooler it appears water leaked in at low boost. At high boost the system was pressurized by the leak and the water was pumped out of the reservoir. (sprayed all over the place under the hood). I have the stock pump and have logged with a supercooler, supercooler and stock H/E in line, stock H/E and now with an E55AMG H/E. The difference in IAT's between all of them is minimal, perhaps 5º. Spraying water meth through the supercharger made little difference in IAT's. Some systems take much longer to reach xº over ambient but they all settled at 20º or above. My next adventure will be an Eurocharged H/E (or the current H/E) with the stock configuration. Anyone have some stock hoses to sell me? I hacked mine and the stockers will make it easier to return it to a shared system.

Les