Turbo for lots of fuel

To get the measurements of both wheels do I have to take anything apart????
Or just what I can see???
EGTs at 50psi and 1900rpm under full load 900*F-1000*F burning clean.
If you are to run it at 38-40psi 1600rpm it was still making good HP the engine sounded different from stock didn't sound like it was working at all very smooth and EGTs at 850*F.
The only time you had to watch high EGTs was anything under 1400rpm and too much throttle,it would still pull there but you could only use about 30% engine load and it would smoke a bit.

 

The turbine wheel 95mm A/R 1.23
The comp wheel 117mm and 88mm
Seems to be the same as the measurements you got for the 47.

 

If 55 is used in 630/700hp C-18 that has max torque at 1200 rpm it should be quite perfect for you. Anyone know what A/R that C-18 turbo has?

 

Hopefully thats the last nail in the coffin when it comes to dealing with Great Lakes.
You will be running bigger injectors than me as well as the box so it might be to small,seems to work well for me though.
As far as changes to fit it all I did was to make the flexy exhaust under the cab a bit longer to move the exhaust closer to the turbo because of no wastegate.
No changes on the intake side and all the oil lines bolted straight up.
But I did run that turbo for 2 weeks before I put the injectors in and it was a pig to drive,heaps of lag and it felt like the engine never had enough HP to drive it.

 

I really dont know how much fuel these injectors are flowing as Great Lakes removes all part numbers so they could be flowed stockers or 59s but they were brand new.
All I know is that they don't smoke,only on gear changes and anything under 1400rpm.
I allowed a whole day to change the turbo so I wouldn't have to rush,by 10am I had to go back to work.
When we had both turbo's next to each other on the bench we couldn't believe how big the GT47 was through the middle and shaft size over the stock turboit looks bullet proof...................Wish I hadn't said that

 

I probably should clarify what I wrote earlier, just because cat lists (example) GT47 for a C15 doesn't mean its the same as the GT47 you buy from Garrett, Cat have the turbo specially make for them and to there specs. The 47 refers to the frame size and there are many combinations within a frame size. Thats problaby why Shauns GT47 is bigger internally than the Cat spec GT50 it replaced. So a GT55 you buy from Garret may be considerably different to the GT55 fitted to a C18, sorry for any confusion. Wasn't till I did some reading I realised there was so much involved in this.
Shaun, was the turbine on your Garrett turbo a lot bigger than the one that came off your truck? you said the turbine was 95mm yes? I measured a C16 turbo and it is 92mm, a noticalbe difference but not huge.