Well I just helped my friend tune his 2001 VW Jetta. It has the 1.8 turbo motor and has been HEAVILY modified. Just listing a couple main things are stroked to a 2.0 or 2.1 liter, big port head, aftermarket intake manifold, custom made tubular exhasut manifold, GT3582R turbo, and everything else that normally is done at this level. FMIC, cams, fuel pump, 160lb/hr injectors, etc. etc.
All runs were done in 3rd gear. We did do one in 4th during tuning just to see spool up difference. It spools 400rpm faster when dynoed in 4th gear.
Ok this car has been dynoed tune and here is the final ignition table for 93 octane pump gas:
As you can see he is not going to run more than 20psi (240kpa) on 93 octane and here is the results on the dyno:
Now for 110 octane race gas, here is the tuned out timing chart:
Here is the dyno results, note the map sensor on this pull was fluctuating between 315kpa and 305 kpa which is 30 psi:
Just thought I would post this for people that are interested. Everyone does stuff different but this is how we did his car.