Does anyone have any pictures of there carb setups?I would also like the most complete list of stuff I need to order.Any other details would be appreciated.


Thanks in advance

 

1.) Intake manifold.
2.) Gaskets.
3.) Carb.
4.) Fuel pressure regulator.
5.) Non-electronic Distributor.
6.) PROPER Linkage adapter for TV cable (If auto or 4+3 trans)
7.) A means to activate the TCC (If auto)

I'm sure I've missed some stuff, but that's a "short list" that will get you started. Do you REALLY want to do this???

RACE ON!!!

 

How about find someone with an '84 and trade them?

 

1984's were carbed???

RACE ON!!!

 

I think he said carb'd, not crossfire.

 

I did my 85 , but no pic's. Im used to have somew in photohorst.org, but i can't seem to find them. Anyway.

CFI-EFI has it about right.

The biggest issue is intake height clearance. You can run a weiand stealth, or edelbrock performer...anything bigger and you'll have hood clearance issues.

I made used the stock dash bezel and put aftermarket gauges in it. I have heard you can still use the stock dash, just use all the stock grounds, and only eliminate the injector and dist wires. The other thing i did was just extend the stock fuel pump pickup and run a holley blue ( which i don't like as it's loud as hell) I will be using a mech pump soon. You can get a converter lock-up kit from transmissino center for $70 if i remember correctly. I use a turbo 350 right now.

Would i do this again ? NO, i would just sell the TPI vette and buy an LT-1 vette...this is just my opinion. I could go just as fast with a stock LT-1 and spray.

Mike

 

As I understand it, the dash remains functional, except for the mpg read out.

I would stick with the stock, in tank, pump. It's there. Simple and cheap. It also virtually eliminates the possibility of vapor lock. I would be sure to use a bypass regulator and plumb the return back to the tank as the car was designed. No point in reinventing the wheel. All this is already there.

Or if one is fascinated with fooling with carbs, buy a C3 or earlier. The EFI is reliable, smooth running, easy starting in all kinds of weather, and economical. Plenty of power is possible, even if one's goals exceed the stock intake manifold. Personally, I don't understand a step back in technology.

RACE ON!!!

 

Now, I'm no engine expert and don't claim to be. That said, I was under the impression that CFI was closer to being a carbed system than it is being a fuel injection system.

 

I did it because i could do it alot cheaper than buying a stealth ram or other after market fuel injection. The carb tuning hasn't been bad and i've learned alot. I have a daily driver that will run 10's on command, that's not too bad, but my friend has done the same thing with a 94 4th gen and all stock LT-1..even the stock manifolds. He has spent hundreds of HRS reading testing and tuning the computer though.

What's you reason for wanting to go to a carb ?

 

You might have made that disclaimer, BEFORE you posted.CFI (Crossfire Fuel Injection) uses two, one barrel, TBIs (Throttle Body Injector) with each barrel equipped with an electronically fired fuel injector, similar to the eight used in a TPI system. The injectors are fired by the ECM which uses a variety of sensors to determine the pulse width of the firing time, just like a TPI. There is no venturi in a throttle body. It may LOOK more like a carb than a TPI system, but it functions more like a TPI. Crossfires ARE EFI. Hence my screen name.

RACE ON!!!

 

So basically what you're saying here is that you knew what I was talking about and instead of originally posting this constructive paragraph, you decided to be obtuse and sarcastic... Get a life.

 

NO! I didn't know what you were talking about. And now it is obvious YOU didn't either. When you said:I believed, that YOU believed '84's were carburetored. Since you NOW seemed to be aware, all along, that '84's were CFI, I thought I'd do you the favor of enlightening you that CFI IS EFI. Just remember, it is only what you learn AFTER you think you know it all that counts. I was only trying to help. Chill out, bud!

RACE ON!!!

 

Sorry if I misread you. It just seemed like your first response
was really sarcastic, especially after you showed just how much you knew about the system in the 1984 Vette. I was just going by what friends have told me - I've never seen, driven, or worked on a Vette older than 91. I only know Cross-Fire Injection because someone's got a pic of the CFI unit in their sig (or did at one point).

 

The reason for me doing this is because I already had formato's burn me a chip.The car is going on its fourth year sitting and I really am tired of trying to get this running with the tune port setup.I have a 355,a small cam,and 10.22:1 compression and it will not idle and if you give it any gas it will die.My tps is fine and I have good fuel pressure.I just want to drive my vette so bad.It is driving me crazy to see eveyone advancing in mods and I am still at phase one.

Thanks in advance

 

I'm willing to bet that something very simple is keeping your car from running correctly. Is your car setting any codes? Do you get a "12" code from the ECM to indicate that it's operational? What is your timing set at? Any chance the timing chain has slipped (compression test)? Is your ignition system up to par (plugs, wires, cap, rotor, module)? Plugs gapped correctly? How many pounds of vacuum at idle? Have you tried swapping the original chip and / or ECM back in with a known good unit?

You said you have "good" fuel pressure...How many pounds? Does it drop dramatically when you goose the throttle?

This sounds like an ignition or timing issue, particularly when it falls on it's face when given throttle. Start there by running a few tests, and don't replace any parts until you determine that they are faulty. You also mention that the cam has been replaced....are the rocker arms adjusted correctly?

You can certainly go the carb route, and a lot of folks here have done it. But the electronic fuelie offers better throttle response, better mileage, better driveability at all elevations and temperatures, fewer emissions, and a cleaner burning (thus longer lasting) engine. And it has the added advantage of On Board Diagnosis (OBD1). But if you have a basic mechanical issue, a carb isn't going to correct it.

I know that "Rich & Lisa's 84" has done a carb conversion on one of his 84's, and the 85 should be very similar. You might trying paging him for advice.

IMHO a carb is a bigger PITA to tune than an electronic fuelie. Post the results of your troubleshooting so we can get a better idea of what's been done, and maybe we can get your baby running without butchering it.

 

Here is a shot of my 84 after the swap. I had just got it running so its a little rough still but you get the idea. Take a look at CFI's post for the list of parts as it is fairly complete. You can get the TC lock up kit from bow tie overdirve.

 

Not too bad for a guy that thinks it's a bad idea, HUH???

RACE ON!!!

 

Guys I may have made it sound wrong when I said it dies when you goose the throttle.I can rev it fine and it revs fast and clean,but as soon as it tries to come back to idle it dies.I am sorry for the confusion.

 

Very possibly the IAC and/or passages. I would double check the minimum air setting, also.

RACE ON!!!

 

Were the fuel pumps in '84 electric or mechanical?

Opps, looks like he has an '85.