Z1 Oil Cooler-Experience

NV370z

I mostly read the information posted to this forum (often and extensively) but I am looking for some advice from real world experiences. I am going to purchase either the Z1 25 or 34 row oil cooler. I am not looking for opinions, the search feature is full of this topic but often provides no credible data. If you have a 25 row please post what you know from experiences with your own car, does it run over 220 if ambient air is above 85 degrees. For those with 34 row do you have issues getting the oil to temp (180) in everyday driving. I guess the most important question is with both what max temps are you seeing while spirited driving in above average temps (85-90 degrees).

Also regarding the mounting of the oil cooler, it seems everyone has a different opinion, mount the fittings down, sideways and up. Is there any credible reason any of these 3 do harm to the performance of the cooler/cooling?

Oil Filter, currently running mobil 1 M110. Not interested in running FRAM or puralator, what are you running?

If all else fails in the advice category I will just go with plan B, 34r and customized aluminum/velcro block off plate.

Any help is greatly appreciated.