Originally Posted by supunna_picta

After my first track day was sullied by excessive oil temps and rev limiting moments I put on a Z1 25 row oil cooler. Here's some feedback that 2 or 3 of you might find useful.

After a 1500 mile road trip here's some rough numbers:

3000-7000 foot altitude, 64-82 degree weather and 70 to 80mph cruising you will sit at sub 180 degree temps with needle swings just above and significantly below 180 (often around 160). A plate is recommended for daily driven Z's during cold weather.

Track day (5000ft), 80-85 degree weather I was pushing the car and hit 250, maybe 260 for a short stint. No cut-off. It was sweet.

Get one if you plan on tracking your car at all, it's going to allow you to focus on other weaknesses of the car, like brakes.