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How would the GT 1749V compare to the stock turbo on a BNM TDI block below 2000 rpm? I.e.: we have a non-VNT turbo against a bigger VNT turbo. So we might lose some oomph from the stock ATL turbo (BW BV39?) but what difference is left compared to my current BNM?

My favourite gearbox shop *COUGH*http://ckr-fahrzeugtechnik.de/ *COUGH* confirmed that MQ250 can take more than 250 NM...

Thanks, then to the gearbox: Swapping in the MYP is apparently harder than a GRJ (or JDD or any MQ250 gearbox). Hopefully MQ250 can handle +20% Nm torque like MQ200 (02T, HCS) has done so far. Can anybody please confirm?

Another way of putting the big question is; Would the GT1749V be good enough at spooling around 1700 rpm so that the 3-cylinder TDI can do 100 KM/h comfortably when utilising a gearbox of type MYP in the highest gear? I.e.: the engine should not sputter when confronted with this load under these conditions; I do not need peak-torque that low but (just) enough to drive the car with this 'bluemotion' MYP gearbox. In this video https://www.youtube.com/watch?v=lIGRWoVw8Ag an ATL with probably stock turbo does exactly that.

Elsewhere I found this: http://forums.tdiclub.com/showthread.php?p=3321977 140 hp / 288 Nm Others comment that there is room for more as the tune was limited to avoid gearbox damage. Questions: How would this graph compare to the stock ATL turbo setup below 2000 rpm? What room -if any- for improvement is there in the real world to improve on the graph shown if the gearbox is not a limitation anymore?

Will the spool up be as fast as the stock ATL turbo? `Goal` is kinda open for discussion. Currently at 95HP/240Nm from a BNM 3-cylinder. Adding the ATL turbo to that setup should get the block close to 120 HP/280 Nm. Closer to circa 140 HP/300 Nm would be interesting if we can combine that goal with the low end torque of the stock ATL turbo because the low end is what we'll use daily. Setup will be used as a daily driver so should respect hardware limitations and not be 'on the edge' of what is possible. (virtual) Smoke-free tune is must.

Elsewhere the 1449v was suggested as an upgrade to the stock turbo, supposedly a BW BV39. Can the 1449v spool up at low rpm for low end torque?

Hello! Which turbo would allow the 1.4 TDI (MKB:ATL) to produce more HP (PS) but also allow for more, lower bottom torque when compared to the 'stock' turbo on the ATL? Where could I find some hints about this challenge? Kind regards, Udo