Well I installed the newly-set injectors (155kg/cm2) tonight. At first, I had quite a bit of white smoke, but that went away as I bled the injectors. I brought the idle down to what I think is normal, then tried blipping the throttle. It wasn't revving up very well, so I slowly increased the fuel enrichment (which you may remember was backed way out to stop the smoking and limp home), little by little. I test drove it and it has LOADS of power (very nice!). I think it's a significant improvement over the performance prior to all of this work. It starts easily and runs smoothly, with plenty of power in all gears. 
Two concerns remain however, mainly that it still does emit a slight puff of white smoke when you"blip" the throttle, and though it was dark, it was my impression that it was smoking slightly out on the road.
Also, the idle climbed as I adjusted the fuel enricher, and even backing the idle screw all the way out would not bring it down to the previous setting. I'd say it's at about 1000rpm, but of course with no tach it's all speculation.
So....the good news is that I can now drive her, and that I conclusively proved that 125bar was too low for this engine. The bad news is that a timing/pump/injection problem still exists and must be sorted out. Perhaps the opening pressure is even higher?
I anticipate the arrival of my factory manual any day (really disappointed with the Ellery manual and it's complete lack of information on the 88-90 3B-2) and I hope to find the information I need to take her to the VW dealership to check my pump timing.
Two concerns remain however, mainly that it still does emit a slight puff of white smoke when you"blip" the throttle, and though it was dark, it was my impression that it was smoking slightly out on the road.
Also, the idle climbed as I adjusted the fuel enricher, and even backing the idle screw all the way out would not bring it down to the previous setting. I'd say it's at about 1000rpm, but of course with no tach it's all speculation.
So....the good news is that I can now drive her, and that I conclusively proved that 125bar was too low for this engine. The bad news is that a timing/pump/injection problem still exists and must be sorted out. Perhaps the opening pressure is even higher?
I anticipate the arrival of my factory manual any day (really disappointed with the Ellery manual and it's complete lack of information on the 88-90 3B-2) and I hope to find the information I need to take her to the VW dealership to check my pump timing.
Maybe someday I'll have a melt down and I can return the favor. 
Cheers
