AlliedSignal Inc. has figured out a way to reduce tailpipe emissions with the application of a turbocharger. Not necessarily a novel idea in itself, but in doing so, the company also has eliminated that annoying boost lag that typically accompanies use of the compressor: Press the gas, wait a second, then get propelled. A conventional turbocharger feeds off expanding exhaust gases to drive the turbine that compresses the engine's intake air. In contrast, AlliedSignal's newly developed ...

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