1989 MK2 Golf TDI - Dirty Diesel

adamss24

Veteran Member
Joined
Nov 2, 2005
Location
Great Britain
TDI
audi a4 2.5 tdi 98 quatrro 6speed
Electronic is far superior, i got there in the end and it was worth the effort in the end
Not contesting that mate, however with loads of fine tuning the n75 I can make the vacuum actuator behave almost the same as the electronic actuator ! It just takes time and loads of flashes to get it working seamlessly !
 

adamss24

Veteran Member
Joined
Nov 2, 2005
Location
Great Britain
TDI
audi a4 2.5 tdi 98 quatrro 6speed
Also on some swaps there is no physical way to fit the turbo as per its native installation, converting to vacuum it’s making things a lot less complex and gives you that necessary room to get your turbo installed as required.
I have soo much room round my pd engine in my mk2 that I can work on it with pretty much everything in place, looking at your car I would hate to drop a 10mm socket in there ! Good effort though !
 

CasaEd

Veteran Member
Joined
Mar 18, 2017
Location
Portugal
TDI
VW Passat TDi B4, VW Passat TDi B4 GL, VW Passat B3 PD AWX Conversion
When I worked for the last garage we would cut the flange off the same turbo you are using and weld it directlly to the manifold, it put it closer to the engine and gave more clearance at the back of the engine, and it was still possible to remove without pulling the head off, but fair play to you, it fits without any cutting and welding, my actuator is actually mounted to the hot side of the turbo, and uses a heat shield, also with my turbo I can keep the long lever so I don't have to mess around making a minimum stop or change the lever for the vanes to a short one, because sometimes that is not easy to get it into the optimal postion.
 

adamss24

Veteran Member
Joined
Nov 2, 2005
Location
Great Britain
TDI
audi a4 2.5 tdi 98 quatrro 6speed
When I worked for the last garage we would cut the flange off the same turbo you are using and weld it directlly to the manifold, it put it closer to the engine and gave more clearance at the back of the engine, and it was still possible to remove without pulling the head off, but fair play to you, it fits without any cutting and welding, my actuator is actually mounted to the hot side of the turbo, and uses a heat shield, also with my turbo I can keep the long lever so I don't have to mess around making a minimum stop or change the lever for the vanes to a short one, because sometimes that is not easy to get it into the optimal postion.
No need to cut flange off the turbo to weld on the manifold, I use darkside adapter plate to fit the gtb2260 housing onto stock AWX manifold mounted upside/down.
The turbo i am using is a hybrid gtb2260vklr with a 69mm Compresor wheel and a amg3.0 tdi style turbine wheel with gtb2260vk hot side housing.
The turbo comes off without taking the head off the block, I rebuilt the engine recently as I was lifting the head off the block and put the forged rods in for good measure.
The car is very fast and I am having issues with traction, I had to limit the torque to 600nm to keep driveshafts in one piece (keep breaking the ball cage on the inner joints).
This mk2 had many turbos along the years, from s300 to gtd40, I don’t race it anymore and kept turbos sensible…still frightens me every time I take it for a spin in the wet !
 

adamss24

Veteran Member
Joined
Nov 2, 2005
Location
Great Britain
TDI
audi a4 2.5 tdi 98 quatrro 6speed
while Appreciate the discussion, My build thread is now confusing… :LOL:
if I am cluttering your thread I could delete my posts…it’s your thread at the end of the day !
I would be grateful for any posts on the forum, the quality posts are getting rather scarce across the boards…
 

zipitie.nz

Active member
Joined
Sep 27, 2019
Location
New Zealand
TDI
MK2 Golf 1.9TDI Firad 80% 2260VKLR
unfortunately facebook and the short attention (tiltok) generation, has not helped a marked decline in forum posting. It really sucks. But hey at least for the most part we have made **** work. Unlike the new gen who seem to go to a APR catalog buy a DV and a Airfilter and call it a “Build” oh don’t forget the cheap nasty aftermarket wheels and JOM suspension kits
 

adamss24

Veteran Member
Joined
Nov 2, 2005
Location
Great Britain
TDI
audi a4 2.5 tdi 98 quatrro 6speed
To be honest, most pd engines have a strong following in uk, mainly because cars have become affordable and tuning potential of the pd lump, these have little secrets left unearthed ! Basically one gets on a specialist website, picks a set of injector nozzles (as large as possible so they’re reek of diesel fumes), get a gt1856 hybrid turbo and a questionable map from some spotted kid in a car park and try the popcorn limiter at every corner then they whinge about oil consumption and flog the marketplace with duff turbos when they go pop !
I don’t like much the pd engine, it’s raw and short power band is nothing to write about however it makes good torque from tickover and it’s easy to maintain and build. Throw a few grand at it and you can have supra performance for peanuts with reliability as on the Japanese car !
However the mk2 golf and pd engine makes for an interesting combo, the sheer power of the built engine and light chassis makes it a very potent sleeper while being rare sight on streets !
Keep up the good work mate and enjoy it as much and as long as possible !
 

burpod

teh stallionz!!1
Joined
Nov 27, 2004
Location
cape cod, ma
TDI
82 rabbit vnt ahu, 98 jetta vnt ahu, 05 parts car, 88 scirocco.. :/
why do you still have the vac ball there???? :D
 

zipitie.nz

Active member
Joined
Sep 27, 2019
Location
New Zealand
TDI
MK2 Golf 1.9TDI Firad 80% 2260VKLR
Flashed my New tune on the TDI over the weekend.

She drives well and makes boost now after the 140hz and signal inversion.

Next steps

get the interior reassembled, and do DTC deletes
 
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