Nissan SR20DET engine
SR - Engine Code Name
20 - 2.0 Liter Displacement
D - Dual Overhead Camshaft
E - Electronic Fuel Injection
T - Turbocharged
The Lack of the letter "D" on some of the engine identifications indicates a SOHC cylinder head.
The SR20DET is part of the SR family of Nissan's engines.
It is a popular inline four cylinder engine fitted into a variety of cool sports cars, generally the Nissan Silvia (Nissan S13, s14 nissan , S15 Nissan). It also came in the Nissan pulsar GTIR (bhp) and the Nissan Bluebird. This engine replaced the CA18DE and CA18DET that originally powered the Nissan Silvia and Nissan 180SX. The CA18 was deemed too expensive to produce and no longer met Japanese emission standards, so it was replaced by the SR20. The SR, just like the out-going CA, was a turbocharged intercooled engine in top form. Nissan also produced a cheaper naturally aspirated version called the SR20DE. In the US and Canada, the Silvia and 180SX are both under the 240SX banner. USDM and Canada Nissan Silvia 240sx come stock with the SOHC KA24E for earlier models, or the DOHC KA24DE for later models.
Both are naturally aspirated engines producing 140 hp (100 kW) and 155 hp (116 kW) respectively. SR20DET engine swaps are becoming more commonplace due to the forced induction aftermarket additions available for the SR20DET. Many shops specialize only in SR20DET swaps.
Why You Want One: The SR20DET's square geometry lends itself well to the ideal balance between high-RPM shenanigans and respectable low-end torque. The factory-issued T25 or T28 turbo also helps. Variable cam timing and available individual throttle bodies on select variants make this one of the most impressive, well-appointed four-cylinder engines ever.
Power Potential: 350whp is easier to come by here than with any other Nissan four-cylinder mill. Swap turbochargers, give it more fuel, address the tune, and you're done. For even more power, for example beyond the 450whp mark, a more durable headgasket and head studs must be used along with forged internals. Aggressive cams may also be needed but require solid lifters and matching, high-performance valve springs to ward off valve float.
