Originally Posted by forgot to bid

I've had a few 88s that had weak APU bleed air and you could tell it during engine start. Figured thats why there running so hot on start. I've had engines run up to about 10 degrees short of max temp on start and then ones with great APUs keep even hot engines 100 degrees below max temp.

The good news, I've had more Captains than not start a trip telling me "I don't care about the APU, if you need it, start it. And start it when we clear of the runway. Keep these people cold."