I'm setting this up to store technical info on what N15s have which engine etc. If you have any corrections or additions then please post them up!
UK N15 Almeras
Si
3 and 5 door
FWD
GA14DE Engine
1.4 L (1392 cc) 16V DOHC fuel injection engine. Bore x stroke (mm): 73.6 x 81.8. It produces 64 kW (87 PS) @6000 rpm and 116 N·m (86 lb·ft) @4000 rpm. Redline is at 6595 rpm.
SRi
3 and 5 door
FWD
GA16DE Engine
1.6 L (1597 cc) 16V DOHC fuel injection engine. It produces 98 bhp (76 kW) and 100 lb.ft.
GTi
3 door only
FWD
Strut braces fitted front and rear, suspension is stiffer than other models and features longer inside stud on front to accomodate strut brace, phase 2 gti springs and shocks are of a different design.
Front: Phase 1 has a lower spring seat than Phase 2
Rear: Phase 1 has a larger diameter spring than Phase 2.
SR20DE Engine
2.0 L (1998 cc) 16v DOHC fuel injection engine. It produces 142bhp.
This version of the SR20DE is the lowport, roller rocker type. Block is 53J.
JDM N15 Pulsars
Low-end Models
3, 4 and 5 door
FWD
GA15DE
The GA15DE is an 1.5 L (1497 cc) engine with DOHC and single point electronic fuel injection. Bore and stroke are 73.6 mm (2.90 in) and 88 mm (3.5 in). It produces 105 hp (78 kW) @6000 rpm and 135 N·m (100 ft·lbf) @4000 rpm.
SR-V
5 Door with roof bars, tailgate mounted spare tyre, often two tone paint.
4WD
Suspension setup on rear is different to 2WD N15 and similar to RNN14 GTiR
GA15DE
The GA15DE is an 1.5 L (1497 cc) engine with DOHC and single point electronic fuel injection. Bore and stroke are 73.6 mm (2.90 in) and 88 mm (3.5 in). It produces 105 hp (78 kW) @6000 rpm and 135 N·m (100 ft·lbf) @4000 rpm.
SR20DE
SR18DE
GTi
3 door only
FWD
SR18DE
The SR18DE is a 1.8 L (1838 cc) DOHC engine. It produces 125 PS (92 kW) @6000 rpm and 156 nm @4800 rpm
VZ-R
3 and 4-door
FWD
SR16VE 'Bluetop'
The 1.6 L (1596 cc) with NEOVVL variable valve timing with lift control. It produces 175 PS (129 kW) @7800 rpm and 119 ft·lbf (161 Nm) @7200 rpm. Redline is at 8300 rpm.
SR-V VZ-R
5 door hatchback with roof bars akin to SR-V
FWD
SR16VE 'Bluetop'
The 1.6 L (1596 cc) with NEOVVL variable valve timing with lift control. It produces 175 PS (129 kW) @7800 rpm and 119 ft·lbf (161 Nm) @7200 rpm. Redline is at 8300 rpm.
VZ-R N1
3 door only
FWD
SR16VE N1 'Redtop'
1.6 L (1596 cc) with NEO VVL producing 200 PS (147 kW) @ 7800 rpm and 134 ft·lbf (181 Nm) @ 7600 rpm. Redline of the N1 Version 2 (1998) is at 8600 rpm
Autech N15
3 Door Only
FWD
SR20DE Autech Tuned, highport
2.0 L (1998 cc) 175PS @ 6800rpm
UK N15 Almeras
Si
3 and 5 door
FWD
GA14DE Engine
1.4 L (1392 cc) 16V DOHC fuel injection engine. Bore x stroke (mm): 73.6 x 81.8. It produces 64 kW (87 PS) @6000 rpm and 116 N·m (86 lb·ft) @4000 rpm. Redline is at 6595 rpm.
SRi
3 and 5 door
FWD
GA16DE Engine
1.6 L (1597 cc) 16V DOHC fuel injection engine. It produces 98 bhp (76 kW) and 100 lb.ft.
GTi
3 door only
FWD
Strut braces fitted front and rear, suspension is stiffer than other models and features longer inside stud on front to accomodate strut brace, phase 2 gti springs and shocks are of a different design.
Front: Phase 1 has a lower spring seat than Phase 2
Rear: Phase 1 has a larger diameter spring than Phase 2.
SR20DE Engine
2.0 L (1998 cc) 16v DOHC fuel injection engine. It produces 142bhp.
This version of the SR20DE is the lowport, roller rocker type. Block is 53J.
JDM N15 Pulsars
Low-end Models
3, 4 and 5 door
FWD
GA15DE
The GA15DE is an 1.5 L (1497 cc) engine with DOHC and single point electronic fuel injection. Bore and stroke are 73.6 mm (2.90 in) and 88 mm (3.5 in). It produces 105 hp (78 kW) @6000 rpm and 135 N·m (100 ft·lbf) @4000 rpm.
SR-V
5 Door with roof bars, tailgate mounted spare tyre, often two tone paint.
4WD
Suspension setup on rear is different to 2WD N15 and similar to RNN14 GTiR
GA15DE
The GA15DE is an 1.5 L (1497 cc) engine with DOHC and single point electronic fuel injection. Bore and stroke are 73.6 mm (2.90 in) and 88 mm (3.5 in). It produces 105 hp (78 kW) @6000 rpm and 135 N·m (100 ft·lbf) @4000 rpm.
SR20DE
SR18DE
GTi
3 door only
FWD
SR18DE
The SR18DE is a 1.8 L (1838 cc) DOHC engine. It produces 125 PS (92 kW) @6000 rpm and 156 nm @4800 rpm
VZ-R
3 and 4-door
FWD
SR16VE 'Bluetop'
The 1.6 L (1596 cc) with NEOVVL variable valve timing with lift control. It produces 175 PS (129 kW) @7800 rpm and 119 ft·lbf (161 Nm) @7200 rpm. Redline is at 8300 rpm.
SR-V VZ-R
5 door hatchback with roof bars akin to SR-V
FWD
SR16VE 'Bluetop'
The 1.6 L (1596 cc) with NEOVVL variable valve timing with lift control. It produces 175 PS (129 kW) @7800 rpm and 119 ft·lbf (161 Nm) @7200 rpm. Redline is at 8300 rpm.
VZ-R N1
3 door only
FWD
SR16VE N1 'Redtop'
1.6 L (1596 cc) with NEO VVL producing 200 PS (147 kW) @ 7800 rpm and 134 ft·lbf (181 Nm) @ 7600 rpm. Redline of the N1 Version 2 (1998) is at 8600 rpm
Autech N15
3 Door Only
FWD
SR20DE Autech Tuned, highport
2.0 L (1998 cc) 175PS @ 6800rpm