You ideally don't want it going above 125°c, without an oil cooler. It'd take some going to get it that hot on the street mind.
Just make sure you run a decent oil and you should be fine.
For referrence I'll happy run laps on the track with my oil at 125°c so long as it's stable at that temperature. However I'm also running Millers Nanodrive CFS oil, which is rated for 125°c with temperature spikes upto 150°c.