IronMonkeyL255

Our parts deal fell though when it came to getting an REW to put into out '83 GSL.

We have decided to just throw in a 13B turbo from an FC (not sure if it's gonna be series IV or V yet).

I looked in the archives at the threads contained therein, but 90% of the links are invalid and 100% of the pictures are no longer there. I have figured out that for mounting purposes it would be easiest to run the stock 12A cover. I am guessing we will need a GSL-SE oil pan to mate up to the front cover and clear the steering linkages and account for the extra length of the motor.

Will the OMP for either series bolt up to the 12A front cover?

TeamSMS

you could use a gsl-se front cover.

IronMonkeyL255

But we already have the stock 12A sitting there, so we could just yank the cover off of that. Would it be that much easier with the SE front cover?

V8what?!

I`ve been reading up on this swap, and, as far as I understand, the gsl-se cover is the only way to go.

Total bummer that all the pictures don`t work anymore, too!

TeamSMS

i believe using the gsl-se front cover makes the swap much easier...but i dont know much about 12a's so i cant be for sure.

Druken

Depending on which series you choose, the OMP will be different. I believe that with the S4, the GSL-SE OMP will work. The S5 is different and will require some type of custom adapting to the front cover. The S5 ecu is much different than the S4 as well, since it requires the connection to the OMP in order to get the car out of limp mode and running properly.

IronMonkeyL255

Worst case, I was actually thinking I could fab up adapters from OMP block-off plates and some AN fittings/lines.

TeamSMS

Hmm never thought of that...if you do please get pics and let us know...

Druken

I do believe there are a couple people who have done custom fittings on their own, and I think they made threads about it as well with pictures. I had mine professionally done, and so the S5 OMP bolts on directly to my GSL-SE front cover perfectly.

P_Lav

To do use a 12A you will need to run premix, and a light wieght fly wheel, its just much simpler to get a gsl-se front cover.

steve84GS TII

GSL-SE front cover allows direct attachment of the S4 TII oil metering pump.It also has a perfect little boss under the OMP pad for the turbo oil drain.No special tools or proceedures required on that one,although the S4 is less desireable than the S5 engine. I did this in 01' and it worked fine.

If you are doing an S5 conversion and retaining the stock EFI,then the GSL-SE front cover can be modded to accept the electric OMP.It just requires some TIG welding and a little machining.Thats what I did 50K miles ago ago and its worked perfectly since 02'.The turbo oil drain will have to be routed to the front corner of the cover,but it will fit.
The 12A cover might be able to be modded in the same fashion,but I cant say for sure since the 12A cover has different OMP bolt holes,a different oil delivery hole and different sealing gasket than the GSL-SE.

IronMonkeyL255

I'll wait and see what we end up with.

If we get an S4, I will probably try to get my hands on an SE front cover.