flori never thought about using wiki for that
still found a little info on it
basically the variable vane turbos allow the turbo to maintain boost through more of the rev range than a conventional turbo
with regards to the wastegate issue. some VGT (variable geometry turbo) can overboost even when the vanes are set to their lowest limit. the vanes themselves are altered by an actuator.
and with regards to petrol engine it has been used with several.
- 1st used in '89 shelby 2.2
- '92 Pug 405 T16
- jeep cherokee with the 3 ltr merc engine can be found with one
- and most recently the '07 911 turbo
can anybody confirm this info ? as i know wikpedia isnt liked by all on this site