hi all
just need some advice, my car has been sit over 5 years now and hasnt been started, ive just managed to get hold of another 2 TBI as one of mine was stick very badly (these coming from a car that has been working).
ive desided to keep the crossfire as tryin to keep it orignal as possible, got some new parts coming for it such as all the relays i could see, new rad, pipes ect.
ive never worked on the crossfire engine before so excuse me if this seems a stupid question, the fuel injectiors i know theres one on each TBI but are there any on the engine if so were?? as i feel that these may be blocked as its been sittin over 5 years.
any pics to help me find them would be great as well as any tips on what i can expect to go wrong when am tryin to get her started.

Thanx All

I use to own a cross-fire Z28. The only injectors were on the TBI. That engine wasn't much fun to work on. Seems like it took twice as long to do anything. Good luck.

Hey man, good luck with the CFI setup. I just sold an 82 TA with the Crossfire Injection and I loved it! For me, it was very easy to work on...and my intake manifold sat in the trunk for 8 years. It only took me an afternoon of work to setup and balance the throttle bodies. I had the LU5 intake on top of an L69 and it pulled like a train...and passed emissions clean as can be. Your best friend will be a water manometer, used to sync the TB's. If you have any questions or problems, PM me. Ill be happy to help you out.

how can i find out if my injectors are balanced correctly,and i looked at the injectors with the car running and its a cone........but not a full stream.Any ideas

Good luck on your project! I too am in the process of piecing together a CFI system as my car had all of it removed when I bought it. If you have a shop manual it will really help you out...make sure it's the factory though. Goes into much more detail. I think they even made a fuel injection manual specific to the CFI system. Saw one one Ebay a while back but haven't seen one since...been trying to find it.

alot of people are afraid to work on these systems but they are actually pretty simple when you get down to it. It's nice to see someone actually want to keep their CFI setup rather than swaping it for a carb setup

yeah man ,I bought this CFI a few months ago and since have put about 10000 miles on it.But when 1st got it home i gave it some tlc..So far I have installed a new radiator,water pump ,thermostat,diffy fluid,new belts and hoses,new fuel filter,o2 sensor,spark plugs and wires.Its still a little slow tho but i know it can get some what faster.I wanna have to where i can at least smoke some 4 and 6 cylinder cars.My blue 82 is way faster than this one but when these cars came out new these were faster than the 4bbl v8s.Thats how i wanna get this car.To its good ole glory days.
So i dont know much about CFIs yet but there pretty cool and I wanna learn more.I was reading some past threads and someone mentioned how there cool looking junk i agree that there cool looking but not junk.But that was a funny statement lol
But thanks for the heads up on the manual.Im gonna start looking for an owners manual for my car

With a water manometer. Also, they shouldnt be a stream, but should be cone shaped.

they are cone shaped,just the fluid that comes out ,its not a teady stream if you get my drift.......so a water maometer.....nver seen one dont know how to use it.Is a water manometer expensive and where can i get one.And when I turn the car off the fuel pump stays on for 30 seconds and then shuts off.And when I have the key turned into the stand by position(you know,when you can roll up ure power windows with engine off)
the fuel pump turns on and stays on.

with TBIs they dont fire steady streams, but interupted ones like what your seeing. that is normal

oh ok,cool then.Im gonna install a new fuel pump tho.I get this backfiring sound coming from the engine when its cold and when i gun it.

If you are going to replace the fuel pump I've heard you should use an '85+ Corvette pump since they flow a bit more than stock.

are they a direct bolt in

Yes, it is a direct bolt in. Just be sure all your rubber fuel hose is in good condition...because the 85 and up pumps run in the high 30's-low 40's as far as fuel pressure, as opposed to 9-13 for the CFI pump. It will feel like a new car after that pump swap though.

I just bought a '83 CFI Z from a friend.He had bought it with intentions of restoring her but his job has him moving.I'm lucky, from what I've read,since my car is complete and running(and optioned pretty nicely even has J65 discs.The manometer is next new item for the tool box - I was thinking an ignition misfire causing the miss/burping when cold.I hadn't even thought about sync'ing them since they were injectors - but makes sense it's still multiple separate delivery of fuel.Has anyone looked at X-ram's website( http://www.x-ram.com )or switched to their intake?

Go over to the Crossfire Injection Vault and do a search on the X-Ram or check out the Alternate Induction forum. Alot of people over there have tried it and you can get alot of peoples opinion. From what I read it is mostly negative, but get informed and make your decision. If you go that route your car will no longer be a "crossfire" car as there is no crossram effect with the intake. It is just a regular 4 barrel carb intake modified to fit to top throttle body plate.

Check out this link at the CFI Vault

Thankyou 1982TA for the info on the crossram.On the air cleaner baseplate the airhorns,for lack of a what they are called but they look similar to a carb's,look to be a block to airflow into the TBIs.Would I adversly affect or would this be beneficial,like in the regular TBI setup,to cutting these down for more direct airflow into the throttle bodys?Are they some type of silencer?Has anyone tried this with a crossfire?

The water nanometer is used to measure the difference in air flow between the to TBI units. When the throttle bodies are synchronized they will flow the same amount of air. When they are not in sync they flow different amounts of air which means different cylinders are getting varying air/fuel mixtures. The computer tries to compensate but there isn’t much it can do, and probably makes things worse. The result is rough running and poor performance.

There is a procedure in the factory service manual. But basically, you hook it to the base of each throttle body and read the difference, then adjust the butterfly valve, which controls the air flow, until they read the same. My crossfire runs great, so I haven’t had to do this and I’m not sure where to get a water nanometer.

I understand about sychn'ing them for fuel flow.What I was asking is would it help airflow into the TB's if I trimmed the airhorns on the air cleaner base plate down for more direct airflow.From the factory it's forced to go over these "airhorns" and the injector assembly itself blocks some airflow in.I'm thinking this is mostly done as a silencer but please corret me if not.And we don't have the option of taller filters like on the single TBI cars.