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**Yugguy** · 27-08-2010, 09:32 AM

http://www.myturbodiesel.com/1000q/a...ate-adjust.htm

basically a VNT is just a rod that varies the boost that the turbo provides by changing the angle of the vanes - the idea being that when you're cruising you dont need much boost, so by lowering the boost in this way you save fuel and increase turbo life.

All PD VAG engines have one, like mine, yours may already have one. I'd have thought it would have some way of varying boost.

27-08-2010, 09:32 AM	#3 (permalink)
Yugguy Very Senior Member Torque Junkie Car: Bora TDI PD 170/290 Join Date: Apr 2009 Location: Rugby (expat Preston lad) Posts: 2,180	Re: VNT on a mechanical turbo diesel.... http://www.myturbodiesel.com/1000q/a...ate-adjust.htm basically a VNT is just a rod that varies the boost that the turbo provides by changing the angle of the vanes - the idea being that when you're cruising you dont need much boost, so by lowering the boost in this way you save fuel and increase turbo life. All PD VAG engines have one, like mine, yours may already have one. I'd have thought it would have some way of varying boost.