Hi, I received this Corvette from a friend as payment for alot of work. Unfortunately, he obtained it from someone that removed the twin throttle bodies. I need to determine what 85-up system I have and how to repair it. I think it was a kit because it has chrome peeling off of it. If anyone has #'s, engine bay photos, ect., it would save me time and be greatly appreciated. I would return to stock except for the added expense/lower performance trade-off. Thanks for your help, Robert

 

its an 84, how do you know it has an 85 intake system? 'cause they are 2 totally different animals...

Post a pic of what you HAVE now. Or post a link to a pic, then someone can hopefully ID the intake and tell you what you need to do.
I doubt they did a complete swap to TPI...that would mean ECM, harness, sensors everywhere...etc> Like I said, whole other animal.

 

I know it's not '84 because I have the shop manual for'84; I'm guessing '85 because it's TPI-it says so. I don't know year, etc. because it looks like some aftermarket mess, chrome on top plates, black powder-coat on runners. Using my manual, I know either a lot is missing or by-passed. Wiring has been butchered so I am not sure if they bypassed, eliminated or just said, "We don't need it". My other manuals are generic, so my option is buy each year manual and trace wiring, or find out what kind of kit this is.

 

find the build plate on the door jamb and see what yr it WAS or was supposed to be.
Then we MIGHT be able to figure out IF the engine intake was traded out or if this is just aftermarket crap bolted on. Pics would be very helpful. We can guess for months....looking at pics of what you HAVE will tell us exactly what it is and what it should be. Find that tag as well.

Lots can be learned from looking at the aftermath of a disaster..!

Score:

rebert 0

Bubba 2

 

I thought maybe I could get some help here, but undoubtably, YOU ARE THE ONLY PERSON THAT KNOWS ANYTHING!! My VIN is:1G1AY0789E5. My build code is: 10/83. That translates to a 1984 model car! I am not an idiot like you want to portray me, I am a 57-year old mechanic who has seen enough engines to tell the difference between twin throttle bodies and tuned port injection! All I wanted was an easy way to ID what was missing/wrong. Thanks for nothing!

rebert 3

Bubba -2 For being insufferable[/QUOTE]

 

I picture of both sides of the engine bay would help a lot.

 

I took pix this afternoon and was going to post them until I saw Lees reply. I thought this was a place to deal with like-minded people, not be treated like dung! I know enough to tell the difference from twin throttle bodies and TPI. In fact, I looked through your forums and found pictures of both engine set-ups- mine isn't original. What I have and what I'm supposed to have are two different things. Thanks anyway, I'll figure it out.

 

I for one would love to try to help. A picture would help a lot. There are a few aftermarket kits out there but should not be hard to narrow it down with some pictures. Also do you knoe if you have alm heads or cast. Just wondering if he did a complete swap. Give some of us a chance to help

 

If I'm not mistaken the only big difference in the TPI set ups over the years were cold start (has an extra injector) speed density or Mass air flow. I don't think the injectors changed someone knows the systems should post up.

Hope this helps

http://forums.corvetteforum.com/c3-t...injection.html

 

Hey PAL !

YOU are the GUY that expects US/ ME to use ESP to GUESS at what YOU have ! !

I CAN't SEE the wires you talk about.

I can;t SEE the TPI and whats missing/gone/added on

I can;t understand because YOU say one thing then contradict it in the SAME sentence ! 84 then tpi then maybe 85 stuff. ????????? whaaaat?

you make NO sense.

I took pix this afternoon and was going to post them until I saw Lees reply. I thought this was a place to deal with like-minded people, not be treated like dung! I know enough to tell the difference from twin throttle bodies and TPI. In fact, I looked through your forums and found pictures of both engine set-ups- mine isn't original. What I have and what I'm supposed to have are two different things. Thanks anyway, I'll figure it out.

If you had given half this info when asked, you'd be well on your way by now

I CANNOT even BEGIN to HELP without more INFO than what YOU offered... You think answers just get pulled outta my a$$ and fit ANY situation?

an 84 sorta with some kind of TPI KIT .. uh-huh

WTF do you expect me or anyone else to do with that VAGUE BULLSH!T description???????



and as far as the "SCORE" you IDIOT,

THAT was to poke fun at the jackass that DID THIS to the CAR, BUBBA,

NOT YOU!

Bubba 2
Rebert 0 <---------meaning you were losing this battle so far.

simple SOB

BUT, since you and your FU attitude do not have ANY sense of HUMOR or the ability to comprehend any of that, in order to get some HELP YOU have to provide something more than your USELESS description of...........????? a corvette with something under the hood? 84 or 85 or ???

MY God,

what did you expect? YOU REALLY thought someone was going to tell you what to do and how to fix it without knowing what it is/was or even what it looks like or whats been done?????

SERIOUSLY ?

I have NEVER said this before, but YOU have forced me to sink to a new LOW

I wouldn't help you fix your POS now after your BS insults and insinuations if my life depended on it...

Personally,

I THINK you are a TROLL

Here to start trouble. That's what TROOLS do. Start useless threads and ask stupid vague questions so people get SUCKED into their BS game.


I TRIED to help you by asking questions that HAD to be answered before ANY help could come your way. I TRIED MFer.

IF you are a mechanic, what are you doing HERE?

You're a TROLL

its obvious to me now.......

 

me, I would put a carb on it till I could complete a tpi system ,if that's the way you wanted to go. Also, Lee was trying to help in a nice guy way. Heck, I been working on cars since 1964 and still come in here to ask stuff.. no carbs , no points, no dist. LED dash.... arghhhh

 

There's numerous ways to identify the Tpi. On the drivers side fuel rail there's a number that starts with 1708xxxx. IE: an 85 would be 17085050. Hint, it is hard too see once all together, and is not the easy one to see in front. The manifold itself has a number like 14081005, or 18436572. 3 different plenums were used. 2 different runners. 2 different throttlebodies, and numerous different injectors at different pressures.
What computer do you have? Run as fast as you can from the 85 1226870. 86 thru 89 used a MAF sensor and ecm 1227165. 90, and 91 was a MAP sensor and used the 1227727 mounted in the engine bay. You might have a Camaro unit ecm number 1227730. Different years used different programming and different injector flowrates. Some used 23 lbs, some 22.4, and some at 22.1. Doesn't sound like a big deal, but knowing what you have will help you put together a good running system the first time.

 

You need to go back to school, then read the posts. I was very plain that the CAR was '84, AND that the induction system on it now wasn't original. My '85-up basis was because that was the system used after '84 and I knew the car has TPI. YOU were the one that would not believe that I knew what YEAR MODEL THE CAR IS?!? Give me a break, in NC, your title #'s and VIN #'s had better match or you just donated your car TO THE STATE! As far as your other remarks, I didn't come to cause trouble, but I also didn't come to take S**t off you because of your attitude! I was, and am in a bind, and don't find too much humor in the situation. Sorry, but my friend committed suicide last year, so I really wanted to get the car running right. Don't worry though, I would not take help from you now anyway. So sit back on your throne and let the pions help me get this going!

 

Thanks, my daughter tried to send the pictures in, let me know if you get them. Will try to get the #'s now that I know where to look.

 

Would love to use carb, but for emissions here, I can go newer, but can't change back to carb for 4 more years.

 

Thanks, that will help, I saw some #'s but didn't know if they were casting #'s or something useful. Will see about getting them all. Thanks again!

 

Some engine pics would really help here. Theres a lot of guess work going on that could easily be answered with those pics.

I would assume that the TPI that was retrofitted in there would have to be one that doesn't have the MAF since the 84 is a MAP set up (speed density)

 

I don't claim to be an expert but if I can see a picture I can look at mine and say yes it is the same or no it's not. I'm a visual person so pictures help a lot in determining things. If you can't upload a picture here, upload it to something like Photobucket and provide a link. The more details that can be provided including pictures, the better chance of getting accurate info and help which is what people here are attempting to do.

I've gotten a lot of help here before, people want to see these vehicles preserved and driven and will help a lot, but the more info given in the beginning the better the info and advise given based on my experiences.