TUNING THE NISSAN SR20DET (RNN14)
The Nissan RNN14 Sunny GTiR is one of the rarest and most exciting hot hatches of the 1990s. Powered by the Nissan SR20DET turbocharged engine with four-wheel drive, the GTiR punched well above its weight in Group N rallying and on the road.
FC Tuning carried out a full ECU remap on this GTiR using our Nistune ECU solution. Getting the most from the SR20DET in the GTiR’s AWD configuration requires careful mapping of fuel, ignition, and boost to achieve safe and reliable power gains.
This rare GTiR left the dyno with strong power improvements and a well-calibrated map that does justice to this exceptional and unique Japanese performance car.

