155 is cool for a t8, very cool. the fast guys seem to like to be @ or around 170.
approaching 200 is hot for these(i got that # from randy), 170 is the sweet spot, gear up!
most of us seem to run the 1900 in the rc8be geared 19/46, and with that gearing i'm @ 165-170 after 10 minutes.
the 1700 could be geared higher, no problem.