B5 S4 Engine into B6

Saw this thread on audizine: The Official B6 2.7T DIY/Swap Guide

There's a lot more than it meets the eye. Fuel tank, wiring loom, ECU, dash, cv joints and much, much more will need swapping or modifying in order to fit- much easier to start with a 1.8T quattro as the tank and fuel lines are similar ! The b6 came with a 3.0 quattro so technically the 2.7TT should drop in ! I would stick with the 2.5 tdi if i was you, much easier to return decent fuel economy and 250+ Bhp with just basic mods ! Ryan at darkside mapped a AFB 150Bhp fitted with a GT2559v turbo (off the renault VeilSatis 3.0dCI) and Bosio race 683 nozzles. He mentioned that it shifted well - you don't get this sort of comments from someone that does run a fully tweaked 350Bhp jetta tdi unless he's impressed with it !

My new hybrid is on the way, it boasts a GTB2260VK CHRA inside a normal gt20 housing, i will fit it in my allroad fitted with Bosio PP683 injector nozzles...will post with results !

It's not the engine's fault that the previous owner was a cheapskate and only serviced the car when the light told him to do ! Also the 1.8T would have needed a full engine rebuild due to sludge issues + there's no way you would get 300Bhp with 2k on a 1.8T ! Clutch barely can cope with 200-250Bhp + the ko3 would need hybridising + bigger injectors + bigger fuel pump + a damn good tune ! I have a b5 1.8T quattro sport, mapped to 225-230 Bhp, a ko4-15 turbo and a v6 will run circles round it ! The 1.8T needs loads of torque to get the b6 barge moving, even the 2.5 tdi with over 400Nm after a remap strugles with it ! Stroking the 1.8 is a different kettle of fish...