is it possible that an 85 IROC came with rear disc brakes?

http://cgi.ebay.com/ebaymotors/ws/eB...tem=1828587575

 

Why not? 4 wheel disc (J65) was available on third gens back to 82.

 

ah be damned, learn something new every day, i was under the mipression only 1le's had 4wheel disc, thanks

 

I smell a fish in that car.

Why would you have to do all those items when it only has 17K miles on it?

. I HAVE INSTALLED A NEW MASTER CYLINDER, MASS AIRFLO, HEAD GASKETS AND VALVE SEALS, SHOCKS AND STRUTS.

Chet

 

Chet,

I had a chance to look at an 89 IROC with a 5.7 TPI today. It only has 16,000 miles on it and was red with red wheels, fully loaded, still has the gatorbacks! This car is GOERGEOUS

Anyway he had to replace all the injectors because it would not idle down so I guess sometimes things break even on newer cars.

Don

 

Did you know you could order four wheel discs on a Sport Coupe from 1982 thru 1986? It's true.

 

Willie,

To get the four wheel disks did you not also have to get the limited Slip differential and looking at the 1986 sales brochure it also says requires V8.

Chet

 

Chet,

You are correct. The sequencing of rear axle options is:

1) Limited slip (G80)
2) 4-wheel discs (J65)
3) Performance axle ratio (G92)

In other words, you cannot get any one of these options without any one listed above it. In other words, you cannot get #2 without getting #1. You cannot get #3 without both #1 and #2. There were restrictions though. #3 was not an option on Sport Coupes, but #1 and #2.

The 1986 Camaro brochure is correct too about the V8 being mandatory. Think about it -- all Z28's and IROC-Z's come with V8's. It was an option on the Sport Coupe. The brochure infers that a V8 is a mandatory option on the Sport Coupe to get 4-wheel discs.

My point in all this is this: The original question was whether 4-wheel discs were available on IROC-Z's. The answer is yes. I was merely trying to point out that not only was it an option on IROC-Z's, but also on Sport Coupes from 1982 thru 1986. From 1987 on, 4-wheel discs were an exclusive IROC-Z option.

Willie

 

Chet, you said earlier that things were fishy with the replacement of parts on the 17k mile car. My 87 had 6300 miles on it when I got it. I had to replace the tires, EGR valve, tranny seal and yoke and it still needs valve seals. Not driving a car is the worse thing you can do to it. I wouldn't be surprised if some of your seals are dry and just haven't leaked because the car hasn't been run enough. It's typical. I found an 87 IROC with 789 original miles on it and the owner replaced the tires, fuel pump, EGR and a few other items before he could sell it. It only had 789 miles and it needed repairs due to just sitting.

 

This is very true, a friend of mine has a 10 mile or so '78 Vette pace car that his parents bought new and he inherited. Just about every piece of rubber and every seal needs to be replaced if it is ever to drive again. They brought the car home from the dealer, drained all the fluids, placed it in a huge bag, put it up on jack stands, and sealed it up. It wasn't until the mid 90's that the bag was opened up, and by then the damage was done. He'd need to open up the engine, tranny, and rear end to make sure there isn't any corrosion due to lack of fluids all those years. It would take thousands to make it driveable. Basically what he has is a nice pretty statue that will look nice in a museum some day, not a car. Definately not the smart investment his parents thought they were buying.

 

Willie,

So for instance you could have ordered an IROC-Z with a limited slip differential and have rear drum brakes.

I wish I would have known more about the ordering process when I purchased my car. I have never actually set down and ordered a car and have always taken what is on the dealers lot. I was more interested in making sure I got the best motor that was offered for that year and when I saw what was on the car that I have it seemed like it had the correct options. My window sticker is over on my original post One of the lowest Z28, second page. I can see now it was missing two items, the Performance axle ratio (G92) and the oil cooler option. I just didn't know that these available and the 1980 Corvette I came out of didn't have the options either.

scottmoyer,

I Think you are more than likely correct on your statements about the seals. I haven't driven the car much. They don't show evidence of leaking but it is happening because I did have to add two cans of freon to the air conditioner on 9/19/00 for the first time. This was the last time I really drove the car and on that day I put 39 miles on the car in the morning and in the evening I put 27 miles on it. I don't see anything leaking yet but I am not going to say it won't happen. When I started the car up again on 4/30/02 the air conditioner still had a charge and was blowing cold air.

I have always tried to be aware of even the temperature changes in the weather that would cause the car to attract moisture. In the spring time when it would suddenly get hot and the temperature is cooler in the building, the building would stay closed until the temperature in the building gradually adjusts upwards. I think you can see that evidence in how my disks brakes and most of the metal parts have very little rust on them. The floor has carpet on it so moisture will not leach up from the concrete floor and the car has a tent type cover that was not cheap when I purchased it back in the early eighties for another car. I would say its the oxidation of the rubber parts that the storage has affected the most. I am surprised that my tires show no effect of being bad but I have always had them aired up to 50 psi. I guess they like the conditions they are in. When the car was started and or driven I have written it down in the log book every time since 3/07/87 when the car at that time had 1396 miles on it.

In having a car like this moisture is your main enemy. When I have started the engine it was always fully heated up and all the moisture was burnt or boiled out. I always went through all the cycles of the heater, AC, gear ranges, Different Rpm's for the motor, etc.and tried every thing to hopefully keep it working. I always have written the time that the engine was run. For instance when I had the car out on 4/30/02 to take pictures I wrote down in the log book "Started Z28, pulled out of garage. Took pictures for thirdgen.org. Ran car for 1 hour 15 minutes." 2719 miles 4-30-02.

I would hope that this car will maybe be shown someday to let someone see a typical factory car and all its flaws even as an almost new car. The car has a lot because these cars back in 1986 were selling good. They let a lot of things slide by on the assembly line that would not happen today. On this car the alignment of the right fender to hood is pathetic. There is other items on this car that are poor, but I took it and have accepted its imperfections. A car is still made by human beings and therefore will never be perfect. Quality on Cars has improved so much since the eighties.

It looks like I won't be really driving this car to much anymore and if the seals were to leak I wouldn't do anything to them. I just want to keep the car as original as I can. I will let the next owner who ever it might be deal with these problems. I feel like the car has been saved for future viewing enjoyment. I know this Z28 has one exact twin when it came in on the carrier and the only difference was the color and it was black. I am sure its fate was not quite as good as this ones is.

I have included a PIC of the exhaust manifold so that you can see that it still has some of the grayish tint on it.

Chet

 

Willie,
What I ahve a hard time understanding is I have an 87 Firebird Formula, with the Ltd slip dif, the disk brakes, and the Borg&Warner rear axel with 3.45 gears, but no G92.

I do not know why either, seems like I have all the right stuff.

John

 

John
Do you have the oil cooler? That's part of the requirements on the Camaro for G92, I don't know about Firebirds

 

I do not know that one... hmm, do you happen to know the RPO code for it?

Then I can look at my RPO sheet. Funny thing, 150K and it still has the glovebox RPO data sheet.


John

 

KC4

 

thats it, I do not have the oil cooler. thanks... I wonder if it was even available, and how hard would it be to add?

thanks

John