Upgrade stages up to 205Hp for the 1.6THP engine found in Peugeot 308.

Stage 1 & stage 2 upgrades, are presented below.

Stock engine specs:    

Capacity: 1598cc                           
bore x stroke: 77 x 85.6 (mm)
Compression ratio: 10.5:1
Turbocharger: KK K03

Full boost: 0.8bar@1400 rpm
Constant pressure:0.6bar
Pressure at revlimit:0.4bar
Revlimit: 6500 rpm

Power: 140, 150 & 156hp
Torque: 240Nm

Stage 1: 

Engine upgrades:

-Stage 1 Software upgrade

Engine performance:

Full boost: 1.15bar@2000 rpm 
Constant pressure:1bar 
Pressure at revlimit:0.8bar 
Revlimit: 7000 rpm

Power: 185hp
Torque: 300Nm

Stage 2:

Engine upgrades:

-Air filter
-Full 63.5mm exhaust
-Bigger intrercooler
-Stage 2 Software upgrade

Engine performance:

Full boost: 1.25bar@2000 rpm 
Constant pressure:1.1bar 
Pressure at revlimit:0.9bar 
Revlimit: 7000 rpm

Power: 205hp
Torque: 320Nm

Dyno:

Software upgrades:
The fuel pressure regulator was tuned to 130 bar at high rpm.

The variable valve timing was also tuned, making higher valve overlap at 4000 rpm. 

Use of 95/100 octane fuel is mandatory.