rx7 stock turbo on my gst

[mat_80]

I searched in all posts, and found nothing, so I want to know if these turbo will fit in my gst?
I think the stock turbo is HT12 but not sure.

 

[PieEyedPiper]

even if it fit, im not sure it would be an upgrade.

is this from a tt rx7?

They had a small one to help spool the large one and they only ran around ~7-9 psi. I"m sure they go higher but I'm not sure how much.

 

[GRITZ]

If this is a turbo from a 86-91 turbo II r-x7 then i would think that turbo would do you more harm because it uses a 1.00 a/r on the hot side...way to big for any street 4g63...Also the foot print is T3 so it won't bolt up.. 86-88(6-7 psi) being a s4 turbo and 89-91(10psi) being a s5 turbo which is the best!!!