Steve,

Perhaps a little more data would be appropriate.  What motor are you
running?  Glasair I? The LNC2 has had about 3 oil cooler location
discussions which tend to make worlds of difference as to how cool they
run.  

My IO 360 has the oil cooler hanging forward of #2.  For my plane oil
temp sits at 83C in high cruise.  I think this is the Vernithern (sp?)
set point.  In climb or low cruise I see 87C.  While racing on the deck
with the knobs all jammed in I see 95C.  OAT seems to have very little
affect from 70F-100F on oil temp (maybe 3-4 deg C).

If you do attend the Airventure Cup, Steve and Bruce Hammer have Glasair
I's with 360's and are a wellspring of data and insight as to how to go
fast while cool (or be cool while going fast for that matter).

Larry Henney
N360LH