What's a good running temp for a bravo 1 and when is it in danger

I can't speak to a value - However, I can say that I have a Bravo 3 with a drive shower. We keep the boat on a lift. After a pretty good run just for the heck of it I jumped in the water (inland lake) and felt the outdrive. Even with the drive shower the top end was warm -- not hot warm. I can only imagine how warm an outdrive gets behind some of these performance boats. For sure, make sure you have a drive shower

3pointstar

One of those hand held temp gauges that reads temp with the laser would probably work pretty well.

The boat he bought has drive temp sending units in them, for the record they never ran hotter than 105-110 pretty sure most of the time didn't hardly come off the needle, as for high temps IDK

That's even better

Dean from the Bravo shop, in the old days said that Lube temp would go to 195* after a hard run and if it got to 220* bearing would fail. Now that was old info and using old lube, back in the 90's. Friend of mine broke a drive shower and had the temp gauges and would see 50* hotter with the one minus the shower.. I can not remember what numbers he spoke of. I think it was 150* and 200* internal lube temp.
Hope that helps.
Dick