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Nissan SR20DET
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Nissan SR20DET
Verdict
SOLID · 68/100
Est. cost /3yr
€2,400-7,500 over 3 years depending on modification level and maintenance history at purchase
Oil interval
5,000 km
Recalls
0
Worst issue
Injector Failure / Injectors Not Firing
HIGH
Nissan SR20DET
S14 · S14
Injector Failure / Injectors Not Firing
€300-900
HIGH
Steering Column Lock / Ignition Key Won't Turn
€200-600
HIGH
Turbocharger Wear and Oil Feed Issues
€600-2,000
HIGH
Premature Brake Rotor and Pad Wear
€150-500
MODERATE
Seat Belt Restraint Failure
€100-400
MODERATE
Fuel System Faults
€150-700
MODERATE
Nissan SR20DET
S14 · S14
•Check turbo shaft play by firmly gripping the compressor wheel and testing for radial movement, any play is a red flag
•Perform a cold-start compression test across all four cylinders, readings should be within 10% of each other
•Inspect all rubber fuel lines and turbo oil feed/return lines for cracking, weeping, or previous repair tape
•Test all four injectors with a noid light and confirm fuel pressure holds after key-off for at least 30 seconds
•Check steering column lock function and confirm ignition key turns smoothly without force or binding
•Verify the service history shows oil changes no longer than every 5,000 km, neglected oil intervals are the number one killer of this engine
•Confirm whether the car is a Zenki (1993-1996) or Kouki (1996-1998) facelift and check for a mismatched head or turbo from a swap
Nissan SR20DET
S14 · S14
Turbocharger oil feed line
Inspect and replace if cracked or restricted; flush with fresh oil before startup on any newly acquired vehicle
120,000 km
Fuel injectors
Ultrasonic clean and flow-test all four injectors; replace O-rings as a set
100,000 km
Timing chain and tensioner
Inspect tensioner for wear; replace chain if rattling on cold start is present
150,000 km
Coolant hoses and radiator
Replace all rubber coolant hoses and inspect radiator for cracks given vehicle age
At purchase on any vehicle over 15 years old
Nissan SR20DET
S14 · S14
No recalls on record
Nissan SR20DET
S14 · S14
✓Highly proven and well-documented engine in the performance and tuning community
✓Extensive aftermarket support including forged internals, upgraded turbos, and engine management
✓Relatively simple single-turbo layout makes maintenance accessible for experienced DIYers
✓Strong community knowledge base makes diagnosis and repair well-documented
✓Kouki (late S14) cylinder head flows better than the earlier Zenki head, giving a stronger tuning base
Nissan SR20DET
S14 · S14
Real consumption
9 L/100km
Official consumption
Not available
Oil interval
5,000 km
Oil spec
5W-40 fully synthetic, meeting API SN or better
Est. cost /3yr
€2,400-7,500 over 3 years depending on modification level and maintenance history at purchase
Nissan SR20DET
S14 · S14
220 hp · 274 Nm
1993-1996
220 hp · 274 Nm
1996-1998
Don't pick between Zenki and Kouki S14 based on hp, the factory numbers are close either way. The Kouki's revised head and larger turbo make it the marginally better base for tuning, but on both variants turbo condition and oil feed line integrity matter far more to long-term reliability than which facelift you buy. Confirm the engine and turbo are original to that chassis generation, since engine swaps between S13, S14, and S15 donor cars are extremely common in this platform.