Originally Posted by odin2347
If you heard a rattling noise thats pretty bad, better hope you don't have metal in your oil. I would try to find a used VF52 they sell for around $500 (OEM turbo on 09-14 WRX). It is a nice upgrade over the VF40 and you'll just need a tune
A good used one is $600-700 and you'll need a tune, plus a new fuel setup to fully take advantage of the top-end that turbo can offer. A used VF52, while less prone
to failure than the VF40, can still fail under normal circumstances.
OP, send a PM to JmP6889928
. He rebuilds VF40s with improved journal bearings to prevent the failure you just experienced.
There are also upgrade options, including an 11-blade billet wheel that can produce 20+psi. I'm currently running one of his units on a Stage 2 setup, and I produce alot more power than I need. At the very least, get a conversation started, John will definitely help you out.