Well I already know the answer to this but seeing as I am not much of a Camaro guy I figured you could help my little buddy out with a history lesson. I tried to get him started on searching TGO but he is not too keen on doing this. So I thought if anyone had some direct info relating to the topic they could post it here. Vampiroc seems a little confused on the subject...

 

Far be it from me to get in the middle of a urinating contest (eeewwwwww) but the fact is, there were IROCs with both the LG4 and the L03.

 

You can also point out that not all Iroc-z's have 4 wheel disc brakes either. Lot's of them have drums on the rear.

 

I might be wrong on this, BUT I remember hearing that in 87 they offered the LG4 with Automatic, or the 305TPI with the M5 only in the Convertables... so yes, they had IROC's without the TPI engine.

The ONLY cars that came with ONLY TPI were the 87-92 GTA, 89-92 T/A, and the later Z28's ( I think)

John

 

so yes, they had IROC's without the TPI engine.


correct

 

Go back and tell vampiroc that he's the ****** who needs to get a clue, not you.

 

Yep, my 85 IROC is an LG4.

JamesC

 

Most had TPI, but in certain years you could also get an LG4 or a L69. I seroiusly doubt they came with the LO3 though... I've never heard of that. The TA and Formula had it, but not the IROC or Z28.

 

Like I was trying to tell the first person, you could get the LO3 in an Iroc. There are lots of members on this very board that have them. Its not THAT unheard of. I have a friend that owned an 88 Iroc LO3 TBI. It also had the rear drum brakes. His login on this site is 871LEIroc. Ask him sometime, he is pretty keen on his history. Some people just assume that bcause it was an IROC that only certian engine combo's were allowed. At my last count from this post I see that 5 different engines were available from 1985 through 1990. They were the LG4,
L69, LB9, LO3 and L98.

 

Yeah it was started in '88(Not sure) that you could get an LO3 in the base model IROC-Z coupe and convertible.

 

https://www.thirdgen.org/newdesign/tech/techdb.shtml

 

TBI IROC's? Really? I had no idea. That kind of sucks.

 

Yepp my iroc has drums. Are the iroc drums aluminium or??

 

http://www.iroc-z.com/1985pages/1985...es%20in%201985

 

is there a site like that that would give me more info on my 91z28?

 

http://www.camarosource.ca/php/camar....php?year=1991

 

When some people bought the cars NEW, they were not thinking about who would own them down the road. Engine options were sometimes just a matter of cost.

Stock no cost.....Carb/TBI 305
$745 option.........TPI 305
$1150 option........TPI 350

Numbers did change over the years, but as you can see it was a expensive option on a already expensive car model for those years.

 

that'd be me Thanks for the plug razor!

Don't have the car anymore though...it was slow AND a money pit It really sucked not to have posi.

For the rest of you, just think of IROCs as Formulas. Both came with the 305 TBI/LG4 (87 Formula and 85-87 IROC) and had only the one suspension (FE2/WS6) both could have drum brakes as well.

 

That is just plain sad.

Anyone who argues this common misconception is a moron.

People who don't know Camaros are a little more forgiveable, but really, anyone who just frequents this site every now and then should know that IROC doesn't = TPI.

 

There were plenty of LG4 and L03 IROC-Z's. They were the base motors along with the t5 and a drum rear. Anything else was an option that was ordered.

 

since this was directed at me, I already made it clear IROCs were 4 wheel discs and upgraded suspension, I took back the TPI part because there was an L69 in 85 and LG4 86-87. I have NEVER EVER heard of a factory TBI IROC or a drum brake rear iroc, and whatever. GM just got stickercharger crazy I guess if you dolts want to feel special and call your RS with IROC door stickers an IROC. Might as well call all the V6 turd mustangs with the "Pony Appearance Package" GTs. From what I've heard and read about and remember at the dealership when my folks bought their '89, a TBI IROC was just a marketing ploy to scam dumb ****s out of another 2K-3K over the price of an RS. It was a dealership, stickercharged bunch of nonsense. They took an RS, put the IROC hood on it, door decals, grid tail lights, and IROC badges on the ground effects and bumper. everything else was standard, low performance junk from the crummy rear end to the trashy TBI engine. We were shown one of these "IROCs" and my dad who was making the purchase at the time couldn't justify the 16K sticker price of this "IROC" when it had the EXACT same features as the 13K 305 TBI RS, so he bought the RS. So whatever, if you want to feel special and think that the sticker makes the car fine, whatever. IROC always was the top of the line 3rd gen camaro model for a majority of the generation. it had the top of the line suspension, and the 4 wheel discs, and for the most part, was TPI since RS's and base Z28s didn't come with it. yeah there are always special ordering exemptions, I've heard of V6s with IROC suspension, and case of a first gen RS/SS with the RS hood but opted to not have the hideaway lights because the motors had a tendency to fail and freeze in the winter. if an IROC means sticker on door to you, then hey glad you feel that way, I'm the IROC ****, I don't and I'm done waffling on this issue.

 

JamesC

 

Vanpiroc
The most uninformed I have seen someone write.

 

vampiroc, you are a dumbass.

The 1 and ONLY thing that makes an IROC an IROC is the B4Z on the SPID label. No B4Z no IROC and if it has B4Z it is an IROC. There is no debating that fact. If the GM factory put the B4Z RPO on a car it is an IROC, regardless of the other options on the car. Dealers can't make the RPO change and the RPO is what makes it an IROC.


JamesC do you have a picture of your RPO codes or a copy of the window sticker?

 

Man you are so ignorant. SOmeone who likes Camaros should know about them, yet you do not. Look at a Camaro brochure in 88-89. It clearly states the 5.0 EFI (TBI) as standard equipment. Plenty of 305 TPI cars have drum brakes.

Hmm...I guess you would say that GM doesn't know what they are talking about?

Look at a book about Camaros--it has the same info.

AS for your sticker on the door arguement--NOT all IROCs had them. Guess they weren't IROCs eh???

A sticker on the door means zip. It proves nothing either way.

 

There was a RPO option to have NO DECALS on a IROC-Z,

 

Unfortuntely vampiroc,

You have been very misinformed. May I ask where you found your information from? Where ever it was, they have VERY incorrect infomation. Perhaps you have a friend telling teaching you incorrectly?

Not all IROC's had decals. Starting 1988-1990 (end of the Camaro IROC-Z) IROC's could be ordered with no decals (RPO DX3) for a credit of $60.00.

To simply go by what you see if what it is, is very incorrect. Anything visually can be changed. The RPO codes will tell you what the car was ordered with. If it looks like an IROC-Z, does not necessarily mean it WAS one when it was ordered. If there is no B4Z in the RPO codes, then it is not a real IROC-Z.

To NEVER hearing about an IROC-Z coming standard with TBI is also incorrect. (This may be true for 1990 when the engine was only the TPI) If you are able to view or otherwise obtain some IROC-Z brochures (1985-1990) they will clearly indicate the standard engines in both the description for the IROC-Z and in the Performance Engine combinations. Usually will indicate "S" for Standard, and "O" for optional. Mind you, the standard engine for 85-87 was the 4-bbl LG4, 88 & 89 started with the L03 TBI as standard and then switched to only TPI for 1990.

Perhaps you are not fully aware of these. And that the sources that you find your information needs to be corrected. Could you please let us know where you are obtaining your knowledge from?

http://www.camarosource.ca/php/camar....php?year=1985
http://www.camarosource.ca/php/camar....php?year=1986
http://www.camarosource.ca/php/camar....php?year=1987
http://www.camarosource.ca/php/camar....php?year=1988
http://www.camarosource.ca/php/camar....php?year=1989
http://www.camarosource.ca/php/camar....php?year=1990

Hopefully this will help you out a bit. Most of the people here know a LOT about Camaro's and so when someone argues the point about something, rather than argue back, it might be helpful to research to see if what they are saying is true and then if you can prove otherwise, perhaps post where you are finding your information. Otherwise it may give you a bad reputation and we are all Fbody fans here and definately do not want that. :-)

Good luck.

 

Perhaps a little refresher coarse on what differentiated the IROC Z from the rest of the breed. THe ride height of the Iroc was 15mm lower than the Z28, Irocs got the 16" wheels standard at first, then as an option in 88(15" Z28 wheels were standard), Irocs got a better steering box with "stops" for the wider tires. Bilstein shocks and special Delco struts along with the "wonderbar" steering brace were also part of the package.The uniform paint colour and Iroc Z decals were also part of the package. As someone mentioned here the decals could be deleted. There were also California Irocs that came with a plain hood, no stickers and no rear spoiler. Now I believe the grid tailights, hood louvers and fog lamps were all options that were included with the IROC Z but were available on the Z28. As far as TPI is concerned I beleive it was also an option for the Z28 as well , although maybe not in 85?So it was entirely possible to order a low option carbed or throttle boddy powered Iroc with drum brakes, low gear ratio and non posi were also available.By ordering or buying an IROC-Z, you got the best handling Camaro available at the time, not necessarily the fastest or best equipped.

 

Save for the fog lamps, everything else you mentioned was standard on all Z28 cars. (Hood/grid taillamps, fog lamps were an option that could be ordered on a Z28, and TPI was an option for 85' Z28's.)

 

Was the upgraded suspension part of the IROC package??? IE, was the "Wonderbar" only availble on the IROC and not the Z28?

John

 

Yeppirs, you got it. The IROC package was the camaro's ws6.

 

Yes, it was part of the package. The Steering Box Support (aka wonder bar) was a IROC only part. Reason: Only the IROC had the option for the then new 245/50/16 tires and wheels, and they put additional stress in steering box area. GM's engineering then added the support for added strength in that area. Note: it was not part of any handling package.

 

I Have an 87 Iroc... B4Z code intact. Checked out everything.. Its all original and i have drums in the back. Just for you guys to know.

 

Well, that's a)not true and b) a contradiction.


a)Trans Am/Formula/GTA all had options or standard 16 inch wheels with, you guessed it, 245/50/16.

b)first you say, "Yes, it was part of the package.", then in the same post proceed to say " Note: it was not part of any handling package."

 

If you read the original question and quote you will see it was a two part question. The Yes , was for one and the other was for the aka wonder bar.

Also my reply was in regards to a Camaro IROC question and NOT about what your T/A came with.

 

It was one question. "IE" is an abreviation for a discriptor. (In Example)

BTW, I don't have a T/A, I have an IROC. I was saying that as to mention that the other thirdgen fbody with the same size wheel/tire setup did not get that part.

 

Man what a TOOL!! So I guess my 89 IROC-Z with rear drums is fake? LOL SO whats up with me having TPI (Since the only Camaros to have TPI were IROCs and Z28s and B4cs), and most importantly whats with my RPO code Z28 in my 89???? LOL

Kevin

 

IE is REALLY i.e. which stands for 'id est' which is Latin for "that is" IE is Internet Explorer

exempli gratia 'eg' means 'for example' also Latin

And back to the original issue..

My '88 IROC convertible came with 305TPI AND rear drum brakes.


vampiroc sounds like a very bitter 'kid' that is not totally knowledgeable of his subject...just my humble opinion.