I have decided to go with a precision non-ball bearing 5857 turbo with the pfab log manifold. It will be going on a stock f20, should i go with the .63 or .82 t3 a/r exhaust housing? Does anyone have any dyno graphs? Thanks, Paul

 

Ball bearing?

 

non-ballbearing. edited the post!

 

5857 JB is a serious POS

 

63 will spool faster

 

Get a BB or a GT3076

 

lol. if you don't get the oil feed/return correct, you'll burn one up in a heartbeat. But, being JB they can be rebuilt as opposed to a BB.

Get the .63 housing and ensure you have the proper restrictor. Can't remember the right one off the top of my head, may be .035

 

Listen to him.

 

Fo sho

 

I have one its the shiznet!!