bmw b58 calibrations

tuning guide for bmw b58 platform

The brilliantly engineered BMW B58 engine coming as a straight 6 cylinder 3.0 turbo. In our opinion one of the most aggressive in terms of power delivery in the BMW range as well as hosting some outstanding tuning potential. Using the modern MG1 control unit this engine is commonly found in the 140i but housed in the various badged 40i range in both the F & G series.

Stage 1 calibration:

400-440BHP & 600NM

 

Mandatory:

  • Completely stock vehicle (Zero modifications required)

 

Optional Additions:

  • Induction kit
  • Catback exhaust
  • Gearbox map (Auto models only)

Stage 2: calibration

440-460BHP & 660-700NM

 

Mandatory:

  • Downpipe decat or sports cat exhaust (T&C's Section 3)
  • Induction kit
  • Uprated intercooler
  • Uprated charge pipes
  • Gearbox map (Auto models only)

 

Optional Addtions:

  • TU HPFP

Please note figures will vary from vehicle to vehicle the above quotes are from what we achieved on many occasions but as we all know every engine is different.

Here we show a great example of both the stages taking place on a very healthy example of the B58 engine in form of the F20 140i. This was an excellent example of a B58 engined 140i brought to us from stock and covering over various hardware and tuning stages. The graph defines what we have achieved within stages 1 & 2.


Stock:

343BHP & 353Ftlb (478NM)


Stage 1 Calibration:

434BHP & 454Ftlb (615NM)


Stage 2 Calibration:

465BHP & 500Ftlb (677NM)

Please note we require these vehicles to have appropriate tyres for the vehicle in order to conduct our dyno testing. These vehicles are light on the rear end and have an aggressive power delivery without premium branded high speed rating tyres we are unable to dyno these vehicles. In term this means no budget tyres, no winter tyres, no bald tyres, no tyres with cuts or bulges.

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