Quote:
Originally Posted by TnNinjaGirl
Not an electric one. Old Jags and stuff had serpentine powered air pumps.
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emissions air pumps aka secondary air pumps, smog pumps, don't feed the engine air, they pump into exhaust to clean emissions.
if it was a belt driven "air pump" feeding the engine, it would be a supercharger
the answer to all of the intercooler fuss/efficiency jargon/wprries of draw through carb turbo setup would be less of a concern with the cheap addition of water/meth injection.
Its a common fix to charge cooling cost and complexity used in many entry level turbo kits as a substitute to make the install simpler/cheaper. A ninja 250's needs are so low that would be the best bet, assuming you wanted to stay carb'd. Even for fuel injected gorced induction, water/meth injection on top of charge cooling means more boost, or higher compression, or more aggressive ignition timing, or all three are attainable. Which means more power before the engine is knock limited.
disclaimer: I am a motorcycle newb, amd no engineer, a of these opinions/facts are based solely on first hand experience and observations building crazy toys for myself and friends... and related work experience with cars.