09-09-2013, 03:45 PM
Think about it like this IMO - get a piece of stainless pipe and shove a blowlamp underneath it, now push air down it at the same mass air rate as an engine consumes - I'll put money on the actual outlet temperature barely rising a single degree - that's because pipe isn't a very effective radiator, especially when you consider the quantity of air being shoved through it, the heat capacity of the air is so high and relatively insulated, you'd do well to raise it...
You're better off creating a very FREE flowing inlet to the turbocharger, that's where I've seen the VAST majority of gains, I don't care what people say (I know people will disagree...) the stock inlet pipe is a sack of shit! You will almost invariably see a gain in power from a well routed free flowing pipe that isn't sucking in hot engine bay air (note that's different to being affected by radiant transfer from the engine bay...)
You're better off creating a very FREE flowing inlet to the turbocharger, that's where I've seen the VAST majority of gains, I don't care what people say (I know people will disagree...) the stock inlet pipe is a sack of shit! You will almost invariably see a gain in power from a well routed free flowing pipe that isn't sucking in hot engine bay air (note that's different to being affected by radiant transfer from the engine bay...)