Originally posted by RubberBerner
oh as for the cr change in the sohc
Technical Information
Compression Ratio Change for 1989-90 S13's
According to Nissan Technical Bulletin TS89-072:
KA24E ENGINE CHANGE
APPLIED MODEL: 1989 240SX (S13) from engine number KA24-012039*
SERVICE INFORMATION
To improve driveability the KA24E engine on the applied model has been changed as follows:
Compression ratio has been changed (9.1 to 8.6).
Air temperature sensor has been added.
E.C.U. has been changed.
Idle speed.
Self-diagnosis for E.G.R.
...
*Vehicles with an Air Temperature Sensor on the air cleaner box have the
.modified engine.
i dont know how u found this but thanks.
china