I know there are tons of threads on boosting the 1st gens but I need somequick advice since Ive got 1 hour to make my mind.

I just decided to go turbo 2 days ago and have started looking for parts needed. The plan was to tear down a newly rebuilt 12a and prep it for a turbo. That is untill I went to go look at an intercooler and to my surprise next to the fmic was a 13b TII. I asked him what was wrong with it and he told me that it would spit out antifreeze on start up, he didn't know the condition of the seals. Anyways long story short he will sell it to me for $100 and it comes with upper and lower manifold as well as the turbo/exhaust bracket.

I know I need the manifolds but will the exhaust/turbo mounting work as well?
What else can I use off it to beef up the 12a? I prefer the carbed 12a although a TII would be fun.
I believe he said it came out of an 87.

Thanks for the help guys

 

The stock 13B exhaust manifold can work on the 12A... there's a bunch of different ways to make it work but it definatly don't bolt right up with out a spacer, notching, etc... I searched it the other day and there were plenty of threads with pics and all.

The TurboII lower intake manifold doesn't even come close to bolting up to a 12A, unless you made an adapter plate...

 

Ok thanks. So basically only the exhaust/turbo bracket is useful for me? Thanks again.

 

Kinda... for the trouble you have to go through to make it work you might want to pick up a ebay 13B tublar manifold. I've been seeing them go for around $100 lately.

You have to do some fanageling to make it work on a 12A w/the stock S4 turbo, but you'd have to fanagel the stock 13B cast iron one you're looking at too.

Pretty much every route you go turbo'ing the stock 12A requires fanageling...

 

The ebay manifolds are usually for a t4 or t3 flange. Wont work with stock turbo

 

Chop that sucker off and make / weld on a stock turbo flange... Fa'nagelism at it's finest.

 

im also considering doing a boost kit on my 12a. will the stock intake handle having 6-8 psi forced through it?

i currently have a turbonetic's t3/t4 i was going to use with my vw's vrt build but i went supercharged and would like to use that turbo if i can...and since the 13b ebay manifolds are flanged for it...

 

So then the turbo would be a bolt on affair... The flange that bolts to the motor would have to be cut in half and a inch removed, along with removing a inch from the tubing in order to fit on the 12A. I'm going to do this myself it's just I got other projects that come first right now. I'm not sure on the fitament in a 1st gen body, ex: if it hits the frame or anything else or even what type of lower intake manifold would even fit after the fact. That's something whoever tries it first will have to find out, but even then, I'm sure a little fanageling could fix that tooo. For a little over $100 it's worth it, to me anyways, vs building one from scratch.

 

i would have to agree with you, 100 bucks is a really good price for what you get, even if it would need some modification

great job with the info, what was your sorce?

 

My name 85TIIDEVIL should give it away. I've swapped this for that and that for this one time waaaaay tooo many.

I ditched going turbo a few years back being I popped two motors & couldn't get the thing to run right for tooo long of a time. It's fustrating on a budget so I gave up. Besides the fact I'm an electrican by trade not a auto technican, I decided to learn as much as I can before I take a crack at it again, that doesn't mean I didn't get my hands involved in a swap or two or three...

 

oic. when you did your other 2 turbo mod's what did you end up doing with the induction system? did you leave the stock nikki and intake mani? have to do some jetting or barb adjustment? hows about your ignition setup?

i dont meen to just pump you for info, but not a lot of people here are willing to give much up without preaching about the search feature....course thats just about every forum for you

 

You will need to boost prep it. I'll attach a web site that has helped me understand more. However it regards to prepping a holley since it's fairly simple carb and tons of parts locally. I would like to boost prep a sterling but we will see about that.

 

I went with a Series4 TurboII set-up in my 85, everything stock, ECU and all... Then a Weber blow thru on a S4 TII motor. Never boosted a 12A.

There is alot of stuff in the archives on boosting a 12A. When I search something I use the advanced search and go by thread titles. If you go by keywords in the posts it's sometimes waaay too general. The other sections have ALOT of useful info too.

Iwantagofast... Post that link up.

 

i have been doing some brief searching but most of the things i find go into some really drastic mod's that i really dont want to do. i want to keep the thing as plain jane as i can with a boost setup...but like most turbo mod's that usually isnt the case

i'll do a little more research on this. thanks a lot so far man, your the first guy on here that's actually giving me good honest answers and i really appreciat it.

iwantagofast- although it is on a holley, i wold realy like to go through that page and read up on it. i have a lot of experience with the standard holley 4 barrol's both vaccum and mechanical secondary. been using them on my v8 builds for the last few years. hpefully i can find some info somewhere on nikki boost spec's somewhere on the interweb :S

 

No problem, I'm building a 12A right now and I want it to handle a nice shot of nitrous, I'm about to start hitting the searches and archives for some tips too. I'll post up some pics later if I get the chance on the days progress.

 

Actually got around to dropping in a motor I put back together a few weeks ago.

Before you scroll down take a guess how much it weighs... alternator, and waterpump just as it sits in the pic..???





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