hurm.... the gdi turbo if remain in stock form, the transmission should handle well, just dun always rev till red line and change gear, service gearbox on time, no problem actually.... +, gdi engine are for fuel economy, not much mod can be done, unless swap the head to gsr head.... remain stock and u will satisfied with it..... 200hp+- in stock dy........
4g91 and 4g18
The 4G91 uses a 78.4 mm bore and 77.5 mm stroke for a total displacement of 1.5 litres. With a 9.5:1 compression ratio and DOHC, four-valve-per-cylinder head and multi-point EFI, this engine produces 84 kW (114 PS; 113 bhp) at 6000 rpm and 135 N·m (100 ft·lbf) at 5000 rpm
4G92-MIVEC DOHC 16 Valve
Total Displacement - 1597cc
Bore - 81.0mm
Stroke - 77.5mm
Compression Ratio - 11:1
Maximum Output - 128 kW (174 PS; 172 bhp) @ 7,500 rpm
Maximum Torque - 167 N·m (123 ft·lbf) @ 7,000 rpm
Applications
The SOHC 4G18 displaces 1.6 L (1584 cc) with a bore and stroke of 76.0 mm x 87.3 mm. It is a 4-valve per cylinder engine. Output is 105 PS net at 6000 rpm (Middle East specifications), 122 ps gross (Gulf Countries specification), 96 PS net with 151 NM (European specifications).
even stock 4g91 is more powerful than 4g18,cause of dohc....
Displacement, cc 1834
Engine model 4G93T (turbo)
Max.power (Net), kw(PS)/rpm 205 ps (150.78 kw) / 6000 rpm <--ingatkn 192hp jer,ni 202.1993hp fuh
Max.torque(Net), N*m(kg*m)/rpm 28.0 kg*m (274.59 N*m) / 3000 rpm <--mau kuat mounting
Power density 6.05
Engine type Serial 4 cylinder DOHC16 valve IC turbo
Engine information
Fuel system ECI-MULTI (electrically controlled gasoline injection)
Turbocharger Turbo with intercooler
Fuel type Unleaded premium gasoline
LEV system (Low emission vehicle) No
Compression ratio 9
Bore, mm 81
Stroke, mm 89
Final gear ratio
Fuel consumption at 10-15 modes, l/100km 8.1
Fuel consumption at 60 km/h, l/100km