does anyone have specs on this factory turbo?

I can't find any information on it other than rebuilding kits.

BUICK Grand National/T-Type 86-87 3.8L (Intercooled) GAR TB0348 (TA48)

This will be mated to a D16Y8 if this info helps. TIA

 

I asked the same questions.

https://honda-tech.com/zerothread?id=935681

 

thanks for the link.

what modifications had to be done to fit it to a standard T3 flange?

 

I hacked off the 3 bolt ford flange, and welded a T3 flange onto it.. etiehr way. you'll ahve to weld somethnig tog et it fit or make an adapter plate.

 

I build turbo kits for hondas and have a GN [87] and if you have the stock turbo
it will work perfect on a 1800 to 2000 cc motor . it will come on about 55 or 6
and make plenty of boost as far as the 3 bolt flange you,ll have to change your
manifold flange