New 1 Series F40 Engines - tuning or.....
Discussion
The new 1 series only comes with a 140ish bhp engine which I think comes from the Mini - 3 cylinder etc - or the much more powerful M135 model
I can find no information about any other engine becoming available (can anyone advise ?) and if not can one do anything to increase the power to approach the i8 type output for the same unit - do any options not invalidate the warranty ?
The objective would be maybe 200 bhp
I can find no information about any other engine becoming available (can anyone advise ?) and if not can one do anything to increase the power to approach the i8 type output for the same unit - do any options not invalidate the warranty ?
The objective would be maybe 200 bhp
The difference between B38 Medium and Top power output engine are anything but trivial...
B38 Top Engine:
10
2.3. Changes
The following list provides an overview of the changes to the previous B38 engines.
Engine mechanics
• The crankcase was adapted to the front installation position of the mechanical coolant pump.
This is necessary for space reasons as the high-voltage starter motor generator and the intake
air system require more space.
• The diameters of the main bearings and connecting rod bearings were increased to 50 mm.
• The cylinder head is manufactured in the gravity casting procedure. As a result, the cylinder
head has a higher density and a higher stability.
• The shaft diameter of the exhaust valves was increased to 6 mm. This prevents valve
vibrations which would otherwise occur due to the high charging pressure with the valve overlap.
Oil supply
• A 1 kg / 2.2 lbs lighter oil pump, as the function of the integrated mechanical vacuum pump is assumed by the electrical vacuum pump.
• The anti-roll bar link is connected on the front oil sump side.
Belt drive
• Newly developed belt drive. The combustion engine is started via a high-voltage starter motor
generator. A conventional pinion style starter motor is not installed.
• The bearings of the drive shaft in the housing of the mechanical coolant pump were reinforced
due to the greater forces in the belt drive.
• The air conditioning compressor in the belt drive is also not installed. It is replaced with an
EKK at the electrical machine.
• Newly developed belt tensioner.
• Drive belt was widened from six to eight ribs.
• Adapted vibration damper with disconnected belt pulley.
Intake air and exhaust emission systems
• Twin-pipe unfiltered-air intake, actuator depending on the situation. Which can be switched by
a Local Interconnect Network (LIN)
• First use of a water-cooled throttle valve.
• The charge air cooling is carried out using an indirect charge air cooler, which is integrated in
the intake air system.
• The turbine housing of the exhaust turbocharger was integrated in the steel manifold.
• The charging pressure of up to 1.5 bar is reached by modified variable turbine geometry and
controlled by an electrical wastegate valve.
• The cooling of the exhaust turbocharger is done via the bearing seat.
Race Chip GTS GTS package claims 40BHP/66Nm gain on a 1.5L 118i 'previous F20 1 series - B38 engine with 100KW/136BHP so I would expect similar gains with the new 1 series.
B38 Top Engine:
10
2.3. Changes
The following list provides an overview of the changes to the previous B38 engines.
Engine mechanics
• The crankcase was adapted to the front installation position of the mechanical coolant pump.
This is necessary for space reasons as the high-voltage starter motor generator and the intake
air system require more space.
• The diameters of the main bearings and connecting rod bearings were increased to 50 mm.
• The cylinder head is manufactured in the gravity casting procedure. As a result, the cylinder
head has a higher density and a higher stability.
• The shaft diameter of the exhaust valves was increased to 6 mm. This prevents valve
vibrations which would otherwise occur due to the high charging pressure with the valve overlap.
Oil supply
• A 1 kg / 2.2 lbs lighter oil pump, as the function of the integrated mechanical vacuum pump is assumed by the electrical vacuum pump.
• The anti-roll bar link is connected on the front oil sump side.
Belt drive
• Newly developed belt drive. The combustion engine is started via a high-voltage starter motor
generator. A conventional pinion style starter motor is not installed.
• The bearings of the drive shaft in the housing of the mechanical coolant pump were reinforced
due to the greater forces in the belt drive.
• The air conditioning compressor in the belt drive is also not installed. It is replaced with an
EKK at the electrical machine.
• Newly developed belt tensioner.
• Drive belt was widened from six to eight ribs.
• Adapted vibration damper with disconnected belt pulley.
Intake air and exhaust emission systems
• Twin-pipe unfiltered-air intake, actuator depending on the situation. Which can be switched by
a Local Interconnect Network (LIN)
• First use of a water-cooled throttle valve.
• The charge air cooling is carried out using an indirect charge air cooler, which is integrated in
the intake air system.
• The turbine housing of the exhaust turbocharger was integrated in the steel manifold.
• The charging pressure of up to 1.5 bar is reached by modified variable turbine geometry and
controlled by an electrical wastegate valve.
• The cooling of the exhaust turbocharger is done via the bearing seat.
Race Chip GTS GTS package claims 40BHP/66Nm gain on a 1.5L 118i 'previous F20 1 series - B38 engine with 100KW/136BHP so I would expect similar gains with the new 1 series.
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