bmw b38 calibrations

tuning guide for bmw b38 platform

The successor of the N13 engine comes the B38 engine, coming as a 3 cylinder 1.5 turbo. This engine comes in various models of the BMW range badged as the 18i commonly on the F series facelift LCI models & G series. Being 1 cylinder less than the previous N13 doesn't phase this newer variant still hosting a huge potential in tuning.

Stage 1 calibration:

190BHP & 270NM

Mandatory:

Completely stock vehicle (Zero modifications required)

Optional Additions:

Induction kit
Catback exhaust
Gearbox map (Auto models only)

Stage 2 calibration:

190-200BHP & 310-320NM

Mandatory:

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

Here we show a great example of both the stages taking place on a very healthy example of the B38 engine in form of the F20 118i. This was an excellent example of a B38 engined 118i 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:

135BHP & 164Ftlb (222NM)

Stage 1 Calibration:

188BHP & 204Ftlb (276NM)

Stage 2 Calibration:

196BHP & 232Ftlb (314NM)