So is it my understanding that I can convert my stock '89 Turbo II to run a Garret T04BR ball bearing center. i feel as though I may be missing something. Any thing else involved in just the turbo. Not talking about the engine at all, though any suggestions on that would be greatly appreciated.

 

U might wana post this in the single turbo section, u will probabaly get more answers

 

look up BNR turbo thats pretty much what they do.

 

there is no way to convert the stock turbo to utilize a ball bearing CHRA that i know of. youre talking about swapping the whole CHRA(center housing rotating assembly) with the garrett unit which is kind of pointless since you will still be limited by the rather tiny stock turbine housing. you would be better going with a standard T4 flange turbo versus trying to blow through the straw that is the stock turbine housing.

 

my jdm hybrid is garrett turbo crammed into the stock S5 housing, has oil cooled only center section. I dynoed 361whp 309 ft-lbs, 12.1@116mph

i have to pull the housings off to measure the comp and turbine size

 

Ditto. You will also need a lot of supporting mods; ecu, fuel, intercooler, clutch etc..

 

Yes yes yes, this is what I was after!!!! How much boost were you running? Please give me more information!!!!! Those numbers are great for what it is!!! How does it drive? Oh yea what exact internals?? thanks a million!!

 

way to ignore the suggestions to avoid wasting money on a VERY expensive hybrid mod turbo that will still be very limited. if you're gonna mod the stock turbo then just forget the BB CHRA aspect and live with a little lag until the time is to go with a real upgrade turbo. people have gone over 400WHP on non ball bearing hybrid turbos but the turbos just don't last and are less than optimal because of the turbine housing being the limiting factor(yep smaller turbines help spool which in turn also makes the ball bearing center more of a waste of time and money, they also limit the output of the turbo severely and it also becomes very difficult to control boost with the internal wastegate).

 

Thanks man!!! Most def! It really does make more sense to go w/ a real ball bearing unit rather than retrofitting the stocker.