Ok the GTD engine bits didn't really work out as planned so...
I'm going to look at a car later on which I think has a 1Y (1.9 N/A) motor in it.
Having just read the first 20 pages on this forum ( :shock: ) I have picked up the following info.
1.6 GTD cam has slightly better lift than the 1.9.
Both the 1Y and AAZ have piston squirters.
Are the compression ratios different between 1Y and AAZ?
Merc NA34X injectors will work better than GTD (SB code) injectors if I can find some (but we have had a 300 TD Merc in the family for over 10 years :twisted: )
GTD pump should work on the 1Y without probs (please let me know if this isn't right!)
I checked that the exhaust valves on the AAZ and 1Y are the same although the inlets have a different part number :?
The nice inlet manifold which Baxter pointed out comes on the 1Y so that will help.
Oh and a Chargecooler wouldn't go amiss...
This would be going into a T3 Bluestar so the exhaust system is already about 2.5inch bore from VW.

MG