Ron, Any update on the mileage?
I think the only 15s that had 15 stamped on them was the beetle. The 1749v is what is now called a vnt15...they are one and the same. The 1749va is just slightly bigger than the v. The 1749vb is "the" vnt17.
I guess the way it goes is GT1749v = Garret turbocharger, 17 is used to describe the hotside frame size, 49 is the intake wheel size in mm at the biggest part, and the v designates that it is a variable nozzle turbine
In my search for a VNT I found this knowledge. I have never actually held a VNT in my hands yet, but I think I know what I am somewhat looking for.
Garrett designated turbos intake Bore Exhaust Bore
GT 1749 V (GT15) 1.326" 1.441"
GT 1749 VA 1.390" 1.467"
GT 1749 VB (THE"17) 1.459" 1.505"
GT 2052 V(The "20) 1.550*** 1.550***
GT 2252 V 1.550 *** ***
GT 2356 1. 587 1.605
GT 2552 V to many sizes to list 1.550 to 1.700
*** These sizes vary in different series within that particular family group. Example, there are over 100 variations of the VNT 20 alone. The sizes shown here are of the most common sizes that are used in turbos manufactured for use in VW applications.
well FML...
why would they stamp something on a turbo when its not even what it is? now thats some false info coming straight from garrett..