Inquiry- swapping a 13bT (tranny and all) into an 84 gs with the old 12a, can it be done if I were to get a fuel tank and pump from a gsl se? will i need anything else to make all the cpu crap run? can it be done at all?

 

Read this, then search plz

 

Yea I posted "my plan" in the sticky thread "TII swap into GSL-SE" at the top of the first gen forum. It pretty much details what is needed to convert an GSL-SE to nearly stock TII. My post doesn't tell you "how" to do it but specifies "what" is needed to be done.

Your 12a conversion shouldn't be too much different. You'll need the 13b into 12a front engine brace from Racing Beat.

And forget the GSL-SE fuel pump and go right to a Walbro 255 inline fuel pump ( http://www.fuel-pumps.net/500.html ). The SE fuel pump doesn't have enough pressure and rate to supply the TII engine--though I bet some people try and use it. The Walbro is a standard upgrade mod in the FCs. So since you need a new one go right to the Walbro.

Best way to get most of what you need is get a TII donor car, it should have most of what you need. That way you don't spend lots of hours in junk yards or ebay searching for parts.

I recommend an 87-88 since parts are more available and cheaper than 89-91--and I'm planning on posting my GSL-SE/TII wiring schematics in the near future.

The schematics will take you from stock SE to stock TII--and believe me there is ALOT of research required to merge wiring systems. And then pulling the harness and separating wires takes about 2 days--I just did it.

Gook luck on your project. Welcome to the land of BOOST.

Scott