I'm a visual learner. I am researching VVT/VGT/VNT turbos for my truck and stumbled upon a fairly complete explaination. The below link explains how the Holset VGT works:
Does anybody make a performance minded variable vein turbo? How sweet would it be to have 62mm spool up performace on bottom end and 66mm cooling on top end.
This is an older thread, you may not receive a response, and could
be reviving an old thread. Please consider creating a new thread.
Cummins Diesel Forum
A forum community dedicated to all things Cummins Diesel! Originally founded for owners and enthusiasts of Cummins powered Dodge pickups, the Cummins Forum has expanded to include ALL Cummins Engine applications! Come join the discussion about reviews, drivetrain swaps, turbos, modifications, classifieds, builds, troubleshooting, maintenance, and more!