What can I get out of a brand new GT1749V?

thesmileyone

Member
Joined
Apr 11, 2017
Location
NW England
TDI
2007 A3 s-tronic 140
So I signed up here last night due to overboost issues on my 2007 a3 2.0 tdi BKD DSG.

Since then I have been to a garage that checked everything (hoses, n75 etc) and came to the conclusion that my turbo is buggered! When moving actuator you can hear crunching noises inside the turbo.

This afternoon I ordered a brand new GT1749V from Darkside Developments as well as an oil feed and return.

I had planned to get a bigger one possibly a GTB but £££ limits options.

I am wondering what kind of hp and torque I can get out of this brand new turbo? Being dsg it is a strong gearbox.

Shop suggests 180hp is this correct?

I also want to do

hard pipe kit
S3 intercooler
decat/downpipe
2.75" full straight exhaust.
remap

This should make my car a bit of a sleeper it is the base model in a normal colour :D

Thanks!
 

mk1-83

Veteran Member
Joined
Aug 14, 2010
Location
Holland
TDI
LUPO 1.9 tdi 300+ hp
gt1749v stock turbo 150 hp
gt1749va 130 pd 170 hp
gt1749vb 150 pd 190 hp

so there are different models of the gt1749vxx

when overboost most time its stuck vnt vanes so only remove oem turbo and clean the vanes best by ultrasoonic bath
 

thesmileyone

Member
Joined
Apr 11, 2017
Location
NW England
TDI
2007 A3 s-tronic 140
Really? Some places quote 230hp on this turbo.

The shop I am having it fitted at claims that standard boost is 2.4 bar, and my current turbo is overboosting at "2.6 bar".

I thought it was more like 1.4 bar or 19 psi standard turbo? 2.6 seems a bit high to me. They mentioned that number multiple times on different days and they do remaps so should I be worried?
 

Enabled

Veteran Member
Joined
Apr 23, 2013
Location
Houston, TX
TDI
2003 Jetta TDI Manual, BMW 328d SW
That 2.4 and 2.6 includes ~1.0 bar of standard atmospheric pressure. The ECU reports absolute pressure.
 

mk1-83

Veteran Member
Joined
Aug 14, 2010
Location
Holland
TDI
LUPO 1.9 tdi 300+ hp
230 hp for a va turbo is thats not real
va is stock 130 pd turbo so around 170-175 max
and yes ecu see absolute pr so +1
 

thesmileyone

Member
Joined
Apr 11, 2017
Location
NW England
TDI
2007 A3 s-tronic 140
I owned a pd130 passat that I had dyno run it had 187hp with just a remap??? Dyno out?

Was a very quick car but having to constantly change gear in town with the narrow powerband made it eugh!
 
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