ok my new turbo arrived... no go coz everything was way off measurements etc. so I took off my old T3/T04e 57trim and welded 1/2 of the fins (not fully closed shut as you can see) on the hotside

used to spool @ 3000rpm & get 5psi @4000rpm now only 2400rpm & get 5psi by 3500rpm.
way more torque(throttle response was amazing too) @ around 2000 rpm it feelz like my dads supercharged v8 now ^^.... weight increase by a total of 3.5grams (6 fins) + maybe 2-3 more grams from the stainless steel weld spots (pic was taken when finz had minimal weld spots). btw it has a bit of the whining sound when spooling ... I like it alot

but letz see how long it'll last.
the other reason why i didnt use the small T3 turbo was coz the cold side was way too small(hotside A/R .48) about 3inchz smaller in diameter
another half assed job by copex

below-
