I've recently bought a ps13 with an sr20det.
The car will be used as a weekend toy and drift car.
I am doing a complete engine rebuild with std parts.
Power goal is around 300bhp.

My main question is are there any main weak point or areas for improvements that need sorting for a nice reliable engine.

Oil cooler
Radiator + silicone hoses

Any other areas that need attention?
Inlet manifold ?