Originally Posted by Hackett88
its the extra heat created by the fuel igniting in the exhaust that causes the damage. Usually rear end of turbo bares the brunt of the damage, Cracked housings, cracked/chipped blades etc... but you wont notice this until the turbos die.
If you get them really hot you can also cook the bearing cores leading to early turbo failure.
Something to avoid then. Note taken!