I've been sneaking around here a while now, but this is my first post!
I'm considering a turbo upgrade for my 2008 159 2.4 JTDm QTronic. After quite a lot of research I think I will go for the GTB2260VK. Darkside Developments are selling a new unit with vacuum conversion that seems really interesting. However, since it's made for the 1.9 TDI, some modifications is needed.
My biggest concern is the actuator. DSD has fitted a VNT17 actuator, is this compatible with my engine? Or do I have to fit my old BV50 actuator to the 2260? I doubt I've got the competence to up the VNT properly!
I read at TDIclub that on the 1.9 TDI the actuator starts moving at around 5 in/hg, and is fully retracted at 20. Do anyone have a clue what the corresponding values for the 2.4 JTD are? If they are the same, the VNT17 should work on my engine, right?
I've also tried to find a new GTB2056V actuator that I could ask DSD to fit to the 2260, but I'm getting really confused. Does anyone know the part number? 434855-0001 seems to be actuator for the GT2056V, but does the GTB
2056V use the same one? If so, it seems like that's the one also used on TDI engines
I would really appreciate some help!