Tracking the car, Oil cooler questions

[tommyguns]

Hi all,
I'm having the short block replacement done next week, so I thought I would have the Z1 oil cooler installed at the same time being that I intend to start taking the car to the track when the weather breaks. With my current short block my temps sit around 230 with some spirited driving. Should I expect that to change once the shorty is done or will it still be an issue.
I have a few questions I need answers to.
1) How many of you track your car without the cooler and what were your temps?
2)How many of you track your car with the cooler and what were your temps?
3) My dealer is telling me that I should be fine without it. Is he correct?
4) In my situation meaning that the engine is getting pulled, how long should the cooler install take.
Thank you in advance and kindest regards,
Tom