Brett,
I totally agree w/ your overall statement, just a few particulars are off: A dry shot of N20 (any HP)into the intake charge will reduce *CHARGE* temp(actually the bigger the shot the bigger the Temp drop), but yes as soon as that shot makes its way into the combustion chamber it is going to generate some serious heat. Yes, the line is fine when you are just trying to use N20 to cool your pressurized engine's intake charge temp. My **guess** is that a 25hp shot of Zex would compliment a intercooler-less turbo setup on a Turbo'd Duratec.
