Oversized Intercoolers

["Mike Hopton" <mike@genesis-microchip.on.ca>]

     Phil,
     What is the reasoning behind:-
     
     > I was idly chatting with Martin at BR Motorsport the other week, and 
     > he casually mentioned that oversizing the MB's intercooler results 
     > in heat stress and occasional melt-through of the pistons.
     
     I haven't heard of any negative effects, apart from weight I guess, of 
     going to an oversized intercooler. Was Martin suggesting that because 
     the air is much colder with the bigger intercooler there is some type 
     of thermal shock happening to the pistons? Would this differ much from 
     driving hard on a cold day?
     
     Regards, Mike
     
     p.s. Great post on the Fuel metering disassembly!