Power FC Adapter Board for Nissan KA24DE Engine, Dyno Results!

Ask any 240sx owner with a turbo KA setup what's the main issue when going from NA to turbo and their reply would most likely be lack of engine management, and blow off valve and idle issues. A stock ECU retune will help give better performance and is common amongst KAT owners, however, the idling issues associated with the blow off valve opening will still remain. Here at FRSport.com, we are experimenting with adapting Apexi's PowerFC into a KA motor to see just how well the motor responds to the unit.

The factory motor dynos at about 130RWHP and 140TQ, give or take a few numbers depending on the condition of the motor. In fact, our stock test vehicle on the dyno yielded 129.4RWHP and 139.5TQ to be exact, which is nothing to be impressed about.

In our quest to extract more power from the KA motor, we started with an unlikely approach by looking at the engine maangement. Our engine management system is the PowerFC, from a blacktop S13 SR20DET. The PowerFC doesn't exactly plug directly into the KA motor, as the differences between the KA and the SR is significant enough to make it next to impossible to bolt-on without severe modifications to the engine components and harness.

In order to make the unit plug and play, we have prototyped an adapter board to allow the PowerFC to run with the KA just as if it was made for the KA motor. With the foundation in place, we wanted to see just how much power can be extracted from tuning alone so off we went to XS Engineering for some tuning!

After installing all the goodies listed, we popped in the ignition and fuel maps from the NA tune and drove off to XS Engineering once again for another tune. The results? You can see for yourself!