700 is SAFE on long hauls, 800 is safe on hauls that arnt 2 minutes long, 900 probably pushing short, 1000 is a few seconds, 1100 is very very brief peak! past that for any more than a few seconds will probably lead to bine melting terratory, but obviously if you have a pissy bine you will heat the blades quicker AND have higher EGT's due to backpressure, and if you have a large turbine, then less pressure and all round lower EGT's. Its a circle which is which big turbo's dont break... and pissy GT15's always die. Its swings and roundabouts, and will always depend on what turbo you have. I have a chunky T28 which never peaks above 800 after several minutes of abuse, so just depends on that judgement.
![[Image: 22f2b6b2-758b-4c1c-96fb-6fa9c6059b13_zpsf306b56b.jpg]](http://i585.photobucket.com/albums/ss299/Ha11elujaz0rs/22f2b6b2-758b-4c1c-96fb-6fa9c6059b13_zpsf306b56b.jpg)