Swifty's never-ending project thread!

[Swifty1638]

Joe is right. It does ride on oil, but after discussing things with Chad, This theory was formed:

the comp wheel was a BAD pairing for the turbine wheel. Imagine trying to play tug-o-war..with a 2 year old..they are the turbine wheel, and you are the comp wheel. Anytime i'd hit boost, the comp wheel would "suck" itself towards the comp cover, forcing the oil out of the thrust bearing area, and the thrust collar would then ride/wear against the soft brass metal the 270 bearing was made out of. When letting off the throttle, the shaft assembly would "shutter" back n forth, causing more wear. I have the old thust bearing/collar that shows a bit this to be true. So, I think the new setup will hold together just fine. Hopefully, no other issues with anything else on the car.

[blackrosenova400]

Joe is correct, it really shouldnt matter what it is made out of as if it is making contact, its done for eventually. The oiling system of the 270 isnt allowing enough oil in the contact area and the thrust of the compressor wheel is splashing it out.

As far as differant turbos having 270s having no problems is probably the fact that they dont use garrett center sections that have a weak oiling system on there thrust plates.