cw3adkins

Well first off; I have a 87 Iroc-z (automatic) w/ 305 FI TPI. I've been pondering about what to do with the gauge cluster. I'm not sure if it is possible, but does anyone know if you can modify (both the dash and cluster) in order to fit a 4th generation gauge cluster into my 87? I already know that there will be much needed 'fabrication' in order for it to fit, but does anyone know if there would be any special electrical issues or should I just completely abandon the idea?

1984_350_lt

i been wanting to do the same thing with my 92. i have seen pics of 4 gen dashes in 3 gen gars but dont really know what kind of eork is involved

Stephen

iTrader: (12)

People have been swapping the entire dashes for the last 10+ years, so there are plenty & a good search will provide pics & info on what all is needed to do that. In fact, I KNOW I've see build progress pics.

As I recall, while they aren't a 100% complete drop-in, they aren't all they physically hard, just a LOT of little nuts, bolts & connections to deal with.

Fatal88 (a member here, who I haven't seen on in years), is probably the most "famous" one, since he did it YEARS & YEARS ago. Even cut the inner front end off later & put an entire LS1 front half (engine, suspension, firewall, etc.).
http://s119.photobucket.com/albums/o...albumview=grid

In fact, you'll see pics of the TPI & LS1 engine as well as the LT1 & LS1 dash he swaped to later.

HCR13

iTrader: (5)

anything IS possible. I think I slightly remember someone on here doing that once. Remove the 3rd gen gauges and put the 4th gen gauges in its place. The remaining gaps were just covered by abs plastic sheets... But as far as making them work, I would think you need gauges from a OBD1 car which I think (iirc) is 94 and down. 95 and up I think is strictly ecm controlled...

t-top havoc

iTrader: (3)

Where have I seen that Camaro....man that looks familiar but I can't remember......Beautiful!!!
If you go this route good luck & by the looks of it,you will enjoy the upgrade.

one92rs

iTrader: (5)

that camaro has been in a lot of shows all over. luckily for me i have known the owner for years. still is a beautifal car. some of the parts on my car are from some of the older builds.

cw3adkins

Sorry for the (most likely repeat question on here), but I just got a 01 gauge cluster, pulse gen, and signal interface and want to throw it into my 87 Iroc. Does anyone know (possibly have pics or schematics) of the pins on the back of the 01 cluster? I need to figure out what pins go to what. Tried running a search, but after about 70-80 threads I kinda gave in. Thanx.

ChildOfDaLotus

Hey guys, im new to this whole forum thing. I have often read but never posted before so please bare with me. Im not sure if this is the proper thread or where I should ask this, but if anyone know the answer I could really use the help. Im looking into buying an 85 RS, it originaly came with the 6 cylinder in it, but this guy did a 400 small block engine swap with a turbo 350 trans. The motor was out of a 78 el camino (also swapped to that car I assume). The 78 motor does not have any electronics on the motor everything is mechanically driven, so there are no computers on the engine. This causes a big problem here in PA when you want to get it inspected because all of the dummy lights on the dash are constantly on due to not being hooked to anything. Here in PA if the check engine light is on your vehicle automaticaly fails inspection and emmisions (stupid I know). So my question is, is there anything you guys know of that can fix this problem, like just ripping all the dummy lights out or hooking them to a relay to shut off when the motor starts, I have been searching endlesly for days now and cant find anything, I also know that in Pa they check to see if your dummy lights come on when the key is turned to the on position, so I dont know if just ripping them out would be legal. I thank you in advance for any suggestions.

livewire

iTrader: (10)

I thought this thread was about a 4th gen dash swap

HCR13

iTrader: (5)

welcome to the site ChildOfDaLotus! Thats quite a problem. I normally would have just ripped them out/off but if they check for them to come up. The easiest..."easiest" thing to do is wire up some relays, but you would have to get some creative wiring. Go to the "Electronics" section and click on the "Start New Thread" at the top and make your own dedicated topic so people can see it and answer it...

ChildOfDaLotus

Thank you HCR13 I will definately look into doing relays, I was stumped for days, thanks for the idea.

padillas87IROC

Did you get your cluster to work.
Im working on doing the same swap but im stuck!
can you please help>

91ls1t56

I have done this it was not difficult.Just cut out a little of the dash behind the gauge cluster,make a filler piece,and trim to fit.

91ls1t56

one more pic

mtflyboy

wow that looks really good... i like where the speedo and tach are compared to ours..

Dante93GTZ

iTrader: (5)

I demand to know more about your radio pod.

91ls1t56

Like what?

cw3adkins

Wow, that looks really nice. did you pin out the cluster yourself or did you get pin out info from somewhere else? Is it safe to assume that the lcd for the milage doesn't work or did you do an ecm swap too? If you didn't swap the ecm; does the other gauges still work?

Dante93GTZ

iTrader: (5)

What console do you run with it?

Also, how did the 4th gen gauges mate to your 90-92 harness? Surely not a direct plug and play on the actual wiring connector?

RS Chris

The console looks like it was just cut short and carpeted. I dont think he plans to run one. As for the gauges, if you look in his sig you can see he has an LS1. This probably made the swap a lot easier.

91ls1t56

Yes the console was just cut,plastic welded and carpeted. As for the LS1 stuff,it was all from the same car engine,tranny,ecm,wiring,radiator,gas tank,rear end,and gauges. The lcd screen works odometer and trip odometer so it is an accurate log of my drive train. When I did the swap I intergrated the wiring harnesses,I only have the wires I need.All wires were trimmed to length with the proper termanal ends crimped on,all others were removed.

0078red1

you sir just gave me the light that i was looking for. Now i can finish my ls1 swap in my 90 camaro

Ramair21

iTrader: (3)

anything is possible




video
http://www.youtube.com/watch?v=15_XYO4GyOo

0078red1

so where the redlines are at on the dash is where you cut out and attached the ls1 clusters

0078red1

hey just a question about the install of the gauges. i know that you mad a cut but how did you get it to stick to back with it moving around and was there any free space around that i may need to know of.

hardon85

Just to clarify I believe the only clusters that were completely ecm controlled were the LS1 clusters. I'm not sure about the V6 gauges but I would guess that all but the 3800 engine clusters would be individually controlled.

Tobias05

interesting swap!

I give it a +1 for the eye candy and creativity. looks almost stock.

However, due to the lazy and inaccurate tachometer, a dummy temp gauge, and the 90-250 ohms fuel gauge I have to humbly question why go through the hard work just for factory gauges?

Not talking down on anyone, just curious...

hardon85

I think when doing an LS1 swap it's a lot easier to do 4th gen (98-02) gauges instead of converting everything I'm not completely sure though what all has to be converted but I have caught that on some other threads. Also the last time I looked on ebay they are a lot cheaper than a 3rd gen 140 mph cluster and all Z28s have a 150 mph speedo. At least those are the reasons I was considering it.

Tobias05

figured I'd share my 4th gen gauges while everyone's talking about them.

3rdGenLs

iTrader: (1)

@Ramair21 can you give more information on how and what you used to fill in the gaps after installing the cluster.

Ramair21

iTrader: (3)

All i did was test fit the cluster and cut till i was able to slide it back enough. Then i traced the 4th plastic gauge cover unto some ABS plastic sheet. Cut and fit. traced some unto plexiglass as well. Very simple.