View Single Post
  #5  
Old December 18th 07, 02:39 AM posted to alt.autos.corvette
Elbert
external usenet poster
 
Posts: 22
Default '84 crossfire to carburator conversion

On Mon, 17 Dec 2007 15:53:54 GMT, "Art" > wrote:

>Hello All Again,
>
>After doing tremendous research I think the conversion is not very difficult
>as long as certain things are compromised. Please allow me to run these
>things by everyone for comment.
>
>1. Emissions - 1984 was a very early stage of emission control and the
>components can be easily bypassed or disconnected completely and be similiar
>to the '79 'vette, as strictly a toy car for me I feel the emmissions issue
>is non existant as I dirve the car less than 5000/yrs tops and there are no
>emision controls where I live and if I must bypass those laws it can be done
>by either reregistering th ecar as a street rod or an antique.
>
>2. Intake and Carb - Edelbrock has a combination that will fit under the
>hood and not force outside body alterations,so on the street it is
>invisible.
>
>3.Valuation - the value of an '84 C4 with 128,000 miles is very limited as
>it now stands probably the maximum value is less than $5,000 a very
>inexpensive toy for a play car. With the conversion I know I could sell it
>for around $3500.00 a $1,500 loss but much less than a new toy.
>
>4. Distributor - this is kinda up in the air some say it has to be replaced
>with a vac advance distributaor and some say t does not, i will have to try
>the original first and if it don't work then replace it.
>
>5. The biggest issue is the transmission with the kickdown, most
>information is split 50/50 but it appears the the computer does not control
>the transmission and is controlled by a cable that may have to custom made
>but certainly doable I think.
>
>6. Digital dash - the digital (as another very attempt) will still be
>controlled by the ECM.
>
>The total expenditures from Jegs (with the exception of the distributator
>and transmission) is less that $500.00
>
>Please give me any comments or knowledge from your experiences.
>
>Thanks in advance.
>
>Art
>'84 red/red
>soon to be carburated
>



(1) who cares about the value of the car. It's your car do what you
will.
If is of value to you to keep it stock then get it fixed. If you want
to hot rod it or modify it, then do so. You can post a simple
question and you'll always get different answers. If you live in an
emissions strict state then it has to matter to you in order to get it
to pass. Otherwise its your car.

(2) I guarantee you that there are a number of manifold and carb
setups
that will fit under the hood. I'm sure a tune port setup would fit
under the hood too.

(3) the Value is in your eyes....

(4) If you go with a carb setup then you don't use an electronically
controlled distributor (ECM controlled).

(5) I'm sure a 1984 car uses a TV / kick down cable for trans
control.
this is easily modified to work on any number of combinations. You
need to start looking at some hot rod magazines, online resources. Its
very common to swap out 700R4 transmissions into old cars ... IF you
are going to run a carb setup for fuel then you stay with a 700R4
transmission. This is not a big issue at all, most any shop can get
something to work here. I suspect that a TV cable out of a 92K1500
would almost work fine.

(6) I think the dash could be the biggest issue if its ECM controlled,
but in 1984 there were very few cars that had any type of ECM control
much less control over the dash. This should be very easy to call
and find out about, as there are any number of shops that just do
corvette work. I just don't think that in 1984 the ECM controlled
very much at all, beyond maybe timing, fuel to some degree, and may
have read engine temp and or O2 level to adjust for fuel.


Get over the hurdle and go buy the shop manuals for your car. Make
some phone calls, ask around where you live.

A 79 Corvette would have a carb and distributor setup you could
replicate. A TV cable for your transmission would be easy to do.
You might make some real gains in power by going with a tuned port
setup, but that's your call.

Once again your project cars value is what it worth to you. IF you
have fun with it and it serves your interest then who cars what other
do. There are plenty of people who $hit-canned the early fuel
injection crap and went with a carb setup on various GM cars, because
a number of them plain sucked. Now with hindsight its known that the
tuned ports are good performers, and not to hard to setup, or even
entire engine swaps...LT1 for an example would be great candidate for
a vette. Most any of the 5.7 engines out of Z-28 or trans-am would
also be good (fuel injected).

If that were my car, my only two concerns would be. (1) can I pass
emissions if required (2) what kind of crap would I have to deal with
to get the dash to work.

Outside of that everything else is just how
you want to proceed. Either old school with a carb, or something new
with a modern fuel injection setup.
-----------
Elbert


Ads