Anarx

Well i've been playing with the idea of Megasquirting my 82. and how it could be done cheaply. *mainly because i would probably be upgrading to a different motor like a S4/S5 NA motor* and was wondering how hard it would be to pull a TPI off a astro van or the like.

mainly just playing with ideas right now and was wondering if anyone has done this before.

Jess

blwnrtr93

If you're upgrading to a S4/S5 NA motor, why not just add the electronic fuel injection that came with these motors and is proven to work? You should buy a wrecked car with a motor that runs well and pull all the necessary pieces before scrapping it out.

kgray

The holley bolt pattern is much easier to find, so if you got a holley manifold, you could go that route.

j9fd3s

iTrader: (3)

gsl-se throttle body or 12at throttle body are close to a bolt up...

Anarx

Was there an EFI 12a? i thought that EFI didn't start until the GSL-SE and i thought that was a 13b.

well one of the reasons i was thinking a throttle body off of an Astro van is it should have enough flow. and the injector that comes with it should be able to feed a 12a pretty easily.

a holly carb adapter would work but it would be a bit expensive for the TB that i'm after. I'm thinking as cheaply as possible. perhaps i will make a goal of EFI a 12a for something like under $500 or less.

no_name

just make an adaptor plate and you can use just about any throttle body you want. I want to EFI my 12a and was going to use some gm throttle body stuff. The most dificult part is wiring everything up to a computer/ finding a cheap computer that will do the job. I will probably be going megasquirt on my project.

trochoid

iTrader: (6)

Trivia question: Who makes the throttle bodies for the FI 13Bs?.
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Nikki
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.And Tokico makes the bumper shocks.

3rd and final 7

iTrader: (9)

well sheetfar i did not know that tokico made our bumper shocks.
i did know that Nikki does make the throttle bodys though.
like said before make an adapter plate or what you could do is get this Part Number: 18111 from racing beat and put a gslse upper intake mani on there weld a couple injector bungs the lower and be good to go

Anarx

Welding the intake manifolds i really want to try and keep away from. I have seen the results from welding cast aluminum parts before and it never looks very good. *very dirty metal* this whole process wouldn't require that i think i am just going to have to get this TB i'm thinking of and try it. we shall see

Pele

iTrader: (28)

Wonder if I can get replacements in adjustable rebound.

noblesilkfairy

I'm in the process of slowly doing the same thing to my 12a. I got myself a Rochester TBI off of a 3.1L Lumina APV. The route I eventually settled on was I got a Racing beat manifold and bolted on a 1" carb spacer then cut a plate to fit over that. I then tapped some bolt holes in the spacer to accept the TBI. I'm not far enough yet to have it running but it should work. The manifold can eat up a big chunk of your budget but everything else is relatively cheap, plus I'm not cutting/welding and thus possibly creating irreparable damage to any expensive parts. I may eventually open up the bores in the intake to improve airflow, but I will try to get it running first.

If you want to do it the cheapest way though, and you have some basic fabricating skills, I agree that you should probably just make yourself an adapter for the stock manifold. If you're going to run an S4/S5 engine, your best bet is to keep with the stock injection components and if you want, hook up the MS to that although it would probably be a lot easier to run the factory computer for the engine you use. But then again, where's the fun in that?

However you go about it though, let us know. I may end up having to steal some of your ideas.

trochoid

iTrader: (6)

LOL, plan on doing some NASCAR style bump drafting? While suspension shocks don't work well in a horizontal position, the SA front bumper shocks do have a spring which might be able to be upgraded. Haven't found the rear SA ones yet to check for a spring.
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They are not a straight swap for the FB shocks but it may be possible to modify them

I*don't know why this crap at the bottom of my post is there, but everytime I cite a quote it follows the post, even after the quote has been deleted. *Looks like the new owners still have some work to do on the system.

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rotarygod

iTrader: (1)

The single cheapest and easiest way to make it work on your current motor for the time being is to just use the existing carb as a throttlebody. Disconnect the fuel lines. Later on when you decide what you want to do, then upgrade. At least this way you can have something running quicker. You'd have to fab up fuel injector mounts and a fuel line but this is pretty easy.

If you are swapping engines anyways then just get ahold of a 2nd gen intake manifold. It'll work fine.