i recently fitted a greddy manifold to my r34, (still sorting out some minor idling issues) but on the r34 small coolant lines run fron thermostat area up to inlet manifold then along top of the inlet manifold then through aac valve then around the rear of the engine to the turbo. pretty basic what i did.just tose all the old unused coolant lines over your shoulder (ei, the ones that go to through the manifold, throttle body and aac valve) and run a new hose directly from the thermostat area to the hard small steel line that goes to the turbo. (the small stell line is located at the rear of the engine on drivers side.)
thanks
Justin