Upgrade stages up to 69Hp for the 0.8CDi engine of Smart ForTwo.

Stage 1 and Gearbox upgrade upgrades, are presented below. 

Stock engine specs:

Capacity: 799cc
bore x stroke: 65.5 x 79 (mm)
Compression ratio: 16.4:1
Turbocharger: KP31

Full boost: bar@2100 rpm
Constant pressure:bar
Pressure at revlimit:bar
Revlimit: 4500 rpm

Power: 54hp
Torque: 130Nm

Stage 1:

Engine upgrades:

-Stage 1 Software upgrade

Engine performance:

Full boost: bar@2100 rpm 
Constant pressure:bar 
Pressure at revlimit:bar 
Revlimit: 4500 rpm

Power: 69hp
Torque: 160Nm

Stage 1 - DPF OFF:

Engine upgrades:

-Downpipe (Optional)
-DPF Filter remove
-Stage 1 & DPF Removal Software upgrade

Engine performance:

Power: 73hp
Torque: 165Nm

Software upgrades:

Boost control is achieved using the OEM ECU and N75 valve.