I have a 1985 gsl-se that I am wanting to put a twin turbo 13b in or a single turbo. I need to know if they whould fit up to an 85 5 speed transmission. If so what do I need to do to make the engine fit into the car. I work for a Nascar team so i can do just about anything as in fab work if I need to. Please any help would be great. Thanks Chris

 

SEARCH.


thanks.

 

[b]search Then Search Some More And Then Search Some More Then When You Think Your Head Is Going To Expload Search 5 More Times.

 

dont give up, ask the right ppl n they'll give u the right answers not just "search". happened to me too but it happens to all newbs to the forum. the thing that u gotta figure out first is if ur fb is a 12a or 13b. if 13b then the engine, theoretically, should fit on the fd engine. but to make it fit on the motor mounts u need a gsl-se front cover n oil pan. n u might as well get the fd tranny too cause it'll hold up to the power more and will work a lot better. there is soo much stuff to do u dont even know, i dont even know n im doin a similar swap this summer. u'll also need a gsl-se gas tank or a surge tank for the 12a's tank i think. u'll need/want to get an s4 rear end cause its a clutch type lsd or u can weld the 12a or 13b diff (even if ur car is a gsl or gsl-se w/ lsd im pretty sure it wont hold up to the power of the 13b tt). now if ur car is an sa instead of an fb then i dont even know what ur gonna do for suspension, n if u have an fb then im pretty sure u'll only be able to find psuedo coilover n shock instead of full body coilovers. there is a swap u can do but it requires fc shock towers n prob a buncha other stuff going into ur fb/sa. so ur going to have a blast with this im sure lol!

 

I think you should cut down on the power drinks or coffee

If you read his post alot of what you just posted would not even be mentioned or asked.
He has a Se, A Se unless changed is a F.I. model. That means that he has the correct fuel tank and the motor is not a problem as far as bolting in. The fuel pump will have to be upgraded. As far as the diff goes, as long as he isn't getting carried away it will last for awhile.
You did mention the basics but the biggest items are the ones that he needs to do his homework on . Thus being the installation of the ECU and wiring. The fitment of the FD trans in the Fb. The intercooler needs and where to mount with what radiator, what fabrication for the piping, etc..........

My only advice is to go Single Turbo.

 

thanks guys i have called a few places and they didnt know if it will fit up to a 13b 5 speed. so if i get a 13b tt it should bolt up to an 85 5 speed? I have an 1985 gsl-se 13b fi. I got it for $300 and it just needs a wax and it has 112000 miles. white with red leather

 

I am not familar with the Fd transmissions but with the TII transmissions there are mods to be done before the trans will fit and work but has been done many times.

$300.00 is a steal. Post up some exterior and interior pics for us.

 

To bolt up to the standard transmission you need an automatic counterweight from an FD and an aftermarket flywheel and matching clutch for an 85.

It won't last long at any serious power level so your best bet is to install a TII gearbox. This will fit with minor modification.

 

Ditto.

Rotaries all have the same bellhousing pattern,so by juggling the right counterweight,flywheel and clutch you can bolt just about any engine to any tranny.........but thats not to say that any rotary tranny is appropriate behind a turbo engine,or a 13B-REW no less.The N/A boxes are as weak as the TII box is strong.Even the FD guys run the TII box when they get serious.Compared to making an FD twin turbo 13B work in a 1st gen,installing the TII tranny is easy.

 

ok thanks steve

 

I recommend putting in a TII engine and trans, easier that way. Not only is there zero work to mate the engine to the transmission, the TII engine is easier to fit into the engine bay than the 3rd gen. You can use the engine front cover from your GSL-SE and it will practically bolt right in. The 3rd gen engine was designed to fit the 3rd gen power plant frame which is very different from the earlier RX chassis. And if you get a '89-'91 (S5) it'll make just as much power, internally (except for ports) they are almost identical, and you will probably have it ported anyway. Not that using an aftermarket flywheel is a bad thing - in such a light car, you'll really notice a light flywheel. Mazda's stock flywheels are all way too heavy.

The GSL-SE rear end is pretty solid. You'll break something eventually on the drag strip but for street use it's probably fine.

 

Using a stock flywheel is not a 'bad thing'. The choice betwen using a stock flywheel or an aftermarket lightened one comes down to the driver's preference and what the car is used for most of the time. A lightened flywheel with a brass button clutch disc, driven in stop and go traffic or hilly terrain can be a royal pita. However, for roadracing, a light flywheel and an organic/ceramic disc can work quite well.

 

thanks for the info guys the car will be a daily driver or every other daily driver depends on if i get the other 2 cars on the road. A 1972 ople gt and an 1989 toyota supra non turbo but will upgrade to a turbo motor. will have pics of the rx7 on tomorrow sometime.

 

Now the Opel GT would be an ideal candidate for a TII swap. I've never been able to find one in decent enough shape to do it though.

Post pics of your Opel too please.