Nissan 240SX (S13, 1989-1994): Power mods
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What are the best power mods for the Nissan 240SX (S13, 1989-1994)?
It depends on the car’s condition and how you use it. These are the 1 power build entry we have sourced for this car: Plan an SR20DET swap (Limited). Each lists caveats, related problems and sources so you can match it to your goal.
Plan an SR20DET swap Limited
The JDM SR20DET is the common S13 swap. A plug-in harness exists for US S13s, including convertibles and ABS cars.
Caveats: Guides disagree on whether stock mounts and driveshaft carry over; confirm for your engine and gearbox. 1989-1990 cars need the DOHC cluster for the tach.
Parts: JDM SR20DET engine and gearbox (Silvia / 180SX), Wiring Specialties PRO Series SR20DET swap harness for US S13 240SX
Sources (3)
- S13 SR20DET wiring harness for S13 240SX, PRO Series (WRS-PROS13SR20-S13) — Wiring Specialties (harness maker's product listing) (vendor article; read 2026-10-26; full page read)
- Nissan SR20DET swap guide, part 1 — Speed Academy (May 14, 2014) (editorial; read 2026-10-26; full page read)
- SR20DET swap into the 240SX: complete walkthrough — Boost Command (guide site; undated) (editorial; read 2026-10-26; full page read)
More for this car
- All Nissan 240SX (S13, 1989-1994) fitment answers · S13 common problems
- Newsletter archive: past issues with every new and corrected entry
Report a correction — spotted an error or have a better source? Email hello@chassisdex.com.