I need some help in what a/r exhaust housing is best to have on my turbo. Is there a certain way to find out?

 

setup details and goals?

 

Stock 4.8 with a turbonetics t70 im thinking of doing 12 psi max. When i bought the turbo it came with an extra exhaust housing of 1.10 a/r so was wondering if its better also since it is coated

 

what does it spool like ? 1.10 seems a lil large id be tempted to try a .8x housing

 

Still havent ran it the turbo wont mount it hits my fender well so ima redo my piping. Just wanna make sure i put the one thats better. Don't know if im making much sense what im trying to say haha.

 

just try it out and see how it spools , if its to laggy u know u need a smaller housing

 

Oh ok. Have a questione would the size of the turbo do a big differance?
This is how the previous owner had the car but when i bought he didnt have the turbo anymore so i bought one and it wont fit into place.

 

if the ex housing is what is hitting then going to a smaller housing will free up some room

 

Yes its the exhaust housing hittin with the small one. So i was thinking of cuttin the pipe and welding it about 1inch closer for it could clear.

 

the housinig in that picture only apears to be a t4 63 or 84, id contact the guy and see what housing he was using and just get the same one. much easier then cutting up the hotpipes and redoing them

 

He doesn't reply to my messages i been trying for about 3 weeks and no reply. Thats why i post i up here. Ima just redo the hotpipes sounds like the best way for less headaches.

 

well i looked through his old thread this is what he had
T76 .81AR Turbo : Godspeed Project

Description : T76 T4 GODZILLA T4 .80ar compressor .81ar turbine

FREAKING HUGE COMPRESSOR HOUSING , 1000 HP !!!!

(check out the picture with the turbo next to the soda can. you can imagine the size of this turbo charger.)

* Intake :3.95 inch
* Outlet: 2.5 inch
* Compressor trim: .80 ar
* Compressor Wheel diameter 76.80mm / 102.35mm
* Turbine Wheel diameter 72.78mm /64.20mm
* Exhaust trim: .81ar
* Turbine flange type: t4 flange
* Downpipe flange type : 3 inch v band flange
* Cooling type: oil cooled only
* Horsepower rating: 1000+ hp