S15 Black Top SR20DET   Specifications

S15 Silvia 99+

Horsepower: 250ps at 6000rpm Transmission: 6 Speed, Close Ratio  

Injector size: 480cc/min 

Turbo specs:

Compressor: T-28, 60 trim 60 mm BCI-1 compressor in T-04B housing

Turbine: Inco turbine wheel. Cast divider wall between turbine discharge and wastegate.

Center Section: Ball Bearing

Additions: 6 speed manual transmission. The 6 speed cannot  be used on the S13 and S14 motors, and uses a different driveshaft. Speed sensor is located in the differential.

Performance:

The stock turbo will be safe to 15-18 psi. After that, the turbo is past its efficiency range, and power increases will fall off and are not worth the risk of turbo damage. The engine should produce close to 300 RWHP at safe boost.

Required Parts for the install:

Engine, S15 6 speed transmission, S15 driveshaft, S15 differential, S15 speedometer, alternator, starter, power steering pump, Crank Angle Sensor,  ECU, harness, MAFS.

Fitment:

The engine and transmission will fit into 95-98 S14 US 240SX chassis with minor modifications to the transmission mounts. The differential is needed as the speed sensor is located there.   A digital black box is available to convert the speed signal to work with the stock US S14 dash speedometer.

The S13 chassis requires more work. The driveshaft has different mounting location from the S14 / S15 chassis. Custom one-piecs driveshaft or modified S14 DS must be used, Black box also needed for speedometer.