What pads are you using in the Z? If some OEM type ones bring a spare set... also flush the coolant and get some Motul 660 in there, what rubber is on the wheels? What spacers are on it? Keep a good eye on the water temps... burp the system before you go out using a funnel, great way of getting out trapped air. if the water temp goes up to half way its pretty hot in there and Id recommend cruising a bit to get it down, the OEM gauge is very bad to keep track on the temperature though so best play it safe.