VGT (variable geometry turbocharger) 2008 Dodge Ram 3500 Mega Cab 4x4 Diesel
by Christine & Scott Gable
for About.com
To provide steady boost, the pitch of the vanes on the turbine wheel adjust as turbo RPMs fluctuate.
© Adrian Gable©2009 About.com, a part of The New York Times Company.
All rights reserved.