Info on a ST- 50 turbo.

[thaile]

Hey I'm not sure what or if anybody has any information about this turbo, but I was kind of thinking about upgrading turbos on my truck and while digging through some of the turbos we have around the shop I came across this turbo which on the ID Tag has ST- 50 stamped on it. I know that it came originally off a 400hp 855 cummins motor and was wodering if anybody knew how big this turbo is or if it could be used as a single or if it would have to be used as the big turbo in a set of twins. If anybody has any information or what size Holset turbo this would be comparable to let me know please. Thanks.

 

[jwilliams3]

Its good for a paper weight.

Thats real old tech.

 

[RBratby]

the st50 is also on the cummins 903. it is to big to run as a single turbo. i second what jwilliams3 said.