i have a couple questions for anyone that may know, im putting a 12 valve in to my 2000 f250 and was starting to look at this charger? the 12 valves have the t4 flange i belive i stand corrected on that; but correct me if im wrong. is anyone else on here running this turbo or heard or pros/cons about it? like suggested psi it sould not be running over.. and i was debating on going non wastegated with a blow off valve.. yay or nay?

heres the link to the turbo so were all on the same page

Borg Warner S300SX3 S366 66MM .91 A/R 90 Degree Outlet

 

12v's come with a t3 flange from the factory, that turbo is also way too big IMO. you could run it if you wish but its going to be lazy on the bottom end. the 68mm turbine or 71mm turbine is what you should be looking for

 

Borg Warner S300SX3 S363 63MM .88 A/R 90 Degree Outlet what about this one i cant even find what flange this one has on it?

 

Says T4 flange, would be a street friendly turbo for sure. That tight of a housing will take away from top end performance but, should have plenty on the low end. The ported shroud is nice, especially if you plan to tow. Youll deff. want to gate. Blow off relieves boost press. not drive pressure.

 

That would be a great turbo if it did not have the .88 housing on it. your best bet is the .91 divided housing or get in touch with some vendors on here about a .83 divided housing with a wastegate