So, another update to the build. Finally.
The 1.4 turbo i purchased some 10 months ago was fitted shortly after it arrived, and was unsuccessfully mapped in quite a few times by multiple people.
After quite some time talking with JBS about EA211 engines and turbos, they told me that they'd decided to develop a hybrid for it finally. Sooooo.. I'm the first person with the JBSL12 Hybrid Turbo!
Results;
That's 181bhp, and 206 ft/lbs (280nm). With stock exhaust, and stock intake.
Leading on from this we learned;
The turbo is capable of 1.7 bar, but we only used 1.5 bar to reach the 280nm mark which is about the limit for the stock rods (we thought it'd need about 1.6 bar but it was actually much more responsive to the additional boost than we expected).
The stock exhaust becomes a restriction at the 5000 rpm point, and it actually took less boost to get to the 280nm torque than we expected. Sports cat should cure that and allow up to around 200-205bhp (again, limited by stock rods), but...
The high pressure fuel pump just starts to run out at 180bhp, it could probably manage 190 at a push, so they're looking into taking the internals from a 1.8tsi hpfp and putting them inside our hpfp.
Uprated rods should let it make as much as the turbo can make, which will top out probably about 220-230bhp. 200bhp/litre would be an impressive feat, but it's not something that could be done without excessive RnD into uprating internals and custom built turbos (hybrid wouldn't be enough for that).