TUNING THE NISSAN CA18DET (S13)
A nice track and fast road prepped Nissan 200sx S13 with the Nissan CA18DET fitting, powered by OMEX Engine Management (Omex 600) A little engine management system allowing MAFless control improving overall reliability.
Simply tuned to a modest 300hp with a trusty ol Garret GT28R turbo. These turbos are great for quick spool and fast road performance.
A well looked after and well prepped S13.
This Nissan CA18DET S13 shows what a well sorted OMEX standalone management setup can do on a fast road and track focused build. Running OMEX Engine Management (Omex 600) alongside a Garrett GT28R turbo, it makes a safe, repeatable 300hp while staying easy to live with on the road. If you would rather keep the factory ECU, take a look at how we retuned a similar Nissan CA18DET using Nistune, or see how a CA18DET was set up for drifting on this Drift Spec S13.
Garrett’s GT28R remains a popular choice for CA18DET builds like this because it spools quickly enough for fast road driving while still supporting a genuine 300hp on the right supporting mods. Paired with proper engine management and a well prepped S13 chassis, it is a proven combination that plenty of owners in the Nissan scene continue to run today.
Little touches like this go a long way on a car that already spends plenty of time on track: keeping the MAFless OMEX setup properly mapped, checking boost control consistency, and making sure the GT28R is spooling cleanly all help this Nissan CA18DET S13 stay reliable session after session. It is a straightforward recipe, but it is exactly this kind of well sorted, sensibly built S13 that tends to keep going strong long after flashier setups have needed a rebuild.

