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07-21-2009, 08:50 PM #1
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Black- 383 Procharged & N20 Vert
Variable Valve Timing - The Next Phase
Variable Valve Timing - The Next Phase
Nearly every new engine coming out of Detroit has variable valve timing. Here's what it is and how to deal with it.Once upon a time, picking a cam for a given engine combo was all about compromise: improve top-end power at the expense of low-end torque, run well at wide-open throttle but sacrifice idle stability and part-throttle cruise driveability, trade off performance for gas mileage, run hard or run clean. Thanks to OEM-developed variable valve timing (VVT), it doesn't have to be that way anymore.
Photo Gallery: Variable Valve Timing - VVT For Performance Applications Explained - Hot Rod Magazine
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