is it an easy and un-expensive fix to repair a crack on a turbo ?

 

Where abouts on the turbo is the crack?
Chances are you will need to replace the turbo.

Tony

 

wastegate, will this affect performance, was told that it was boosting fine and no smoke etc and only found out bout crack when took it off.

 

Me personally I wouldnt worry if there is no ill affects as I have a turbo car(non scooby) the last 5 years with a crack across its waste gate housing and it works fine. Its really up to you if you want to change it, you could get a scrap turbo with a good exhaust housing and swap them out