Turbo exhaust system modifications can trigger boost cut (fuel cut on boost), a new chip fixes it. Chip is needed for boosting past 0.7 bar / 10 psi with stock exhaust. Original chip 1267355052 requires soldering and 24-pin socket is needed. Open-up Motronic, check original chip and circuit board id. Single chip is replaced on all Motronic versions.
Modified binaries are available for labels listed below:
|1267355052||052 / 483||2716||S723||FD 48.3 RU|
|1267355088||088||2732||S722||FD 05.85 / FD 42.84|
|BOOST||POWER||TORQUE||HOW TO||WHAT ELSE|
|0.4 bar / 6 psi||252 hp||380 nm||—||—|
|0.7 bar / 10 psi||300 hp||450 – 500 nm||Chip + M102 WG||Boost Gauge|
|0.9 bar / 13 psi||330 hp||530 nm||Chip + Custom WG + AFPR||AFR meter + Boost Gauge|
|1.1 bar / 16 psi||Not applicable||Not applicable||Not applicable||Not applicable|
Note: Theoretical max power with M102/M106 turbocharger is 360 HP at flywheel, based on stock inducer size. For extra horsepower bigger compressor wheel is needed and upgrades on fuel system too. Stock 3064G wheel diameters are inducer 48,3 mm / exducer 75,9 mm.
Note2: Unplugged / interrupted wastegate control line makes computer lose ability to influence boost pressure. Also failsafe upon severe engine knock is disabled. It is better to adjust wastegate spring rate, shortcut to this is M102 wastegate with stiffer 200N spring against 65N.
Note3: Power & torque numbers at 0.9 bar / 13 psi are average from three different actual dyno setups and are there for guidance what to expect.