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Alfa Romeo Giulietta TB 1.4 Multiair 163 & 170Hp - Stage 1 & 2

Upgrade stages from 195 to 215 Hp for the Multiair engine found in Alfa Romeo Giulietta.

Stage 1 & Stage 2 upgrades, are presented below.


 

 

 

Stock engine specs:    

Capacity: 1368cc                           
bore x stroke: 72 x 84 (mm)
Compression ratio: 9.8:1
Turbocharger: Garrett GT1446

Full boost: 1.5bar@2500 rpm
Constant pressure:1.1bar
Pressure at revlimit:0.7bar
Revlimit: 6500 rpm

Power: 170hp
Torque: 250Nm

 

Stage 1: 

Engine upgrades:

-Stage 1 Software upgrade

Engine performance:

Full boost: 1.6bar@2500 rpm 
Constant pressure:1.3bar 
Pressure at revlimit:1.1bar 
Revlimit: 6800 rpm

Power: 195hp
Torque: 280Nm

Stage 2:

Engine upgrades:

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

Engine performance:

Full boost: 1.6bar@2500 rpm 
Constant pressure:1.45bar 
Pressure at revlimit:1.15bar 
Revlimit: 6800 rpm

Power: 215hp
Torque: 290Nm

Dyno:

 

 

 

 

 

 

      

 

Software upgrades:

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

Use of 95/100 octane fuel is mandatory.

 

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