engine/oil temp

ok, combo is a 410 with S475 turbo, 727. just had a street tune on the efi done so to get miles on her before hitting the dyno. block is 2/3rd filled. motor has 8 qrt pan remote filter and large oil cooler.
went for a drive last night after work and engine temp was all good at 180* but the oil temp was getting up to 200*. oil psi was getting down to 15-20 at idle 60 psi on road. how relative is oil temp to water temp or vise versa. i've never monitored oil temp before, but thought it would be a good idea to do so with the block fill. oil temp sender is in the pan and the cooler is behind the headlight basically. not much room up front with large ic.
maybe need to look at getting oil cooler into clean air.