82taluver

Just wanted to share. Had a GM Historical services report done for my 91 GTA. It is in deed an R6P with MM5, CC1 AND J65. I have been doing lots of research and I havent found another like it. NOT saying they dont exist you jjust dont find that combo. Seems most 91s had rear drum,

Does anyone have any good guesstimates on the amount of this combo made? GTA Source page says 164 w MM5 alone, so add CC1 AND J65. That has got to be quite a low number. ?????

As a side note it is white w black leather .

TTOP350

iTrader: (8)

compnine.com/

mantaguy

iTrader: (5)

What is a R6P??

82taluver

R6P is performance enhancement group. It should come up easily in the RPO decoder. I have also done the compnine check. Maybe im looking at it wrong but it seems very difficult to match up . It just looks like a bunch of possibilities. ??

86TA355SR

iTrader: (1)

I'm interested in what you may have. I don't see it listed in the 91 RPOs. Maybe I missed it?
http://www.gtasourcepage.com/91RPOFigures.html

What did the performance enhancement group consist of? Are you talking about the SLP dealer installed parts?

JT

iTrader: (1)

Send me the VIN and I can look up the figures from Compnine. The free accounts don't provide all the details.

AmorgetRS

iTrader: (6)

It's interesting that it actually has the R6P RPO codes. I have a basically identical GTA (J65, CC1, MM5, LB9) but compnine doesn't list it as having the R6P RPO code. It has a 3.42 rear axle ratio, which is expected. I saw another 91 GTA in Canada over the summer and despite the same set of options, no R6P RPO code.

82taluver

I will post up a pic of the GM Heritage invoice they sent me. From what I read all GTA should have R6P mandatory. It is the equivelant of G92 in the camaro. It was optional in the Trans Am and I believe again mandatory in the Formula with 5.7 OR LB9 MM5 ONLY.The main thing I was trying to get an idea of is the combo of LB9 MM5 CC1 AND J65. It seemed like J41 cars come up much more often? Thanks for all the input so far!

here is pics of car its been in a thread before.http://www.flickr.com/photos/101053467@N04/

AmorgetRS

iTrader: (6)

That was my understanding of the R6P RPO code, too. However, I have personally seen 2 1991 GTAs that don't specifically have the R6P RPO code BUT have all the options associated with it. So as far as numbers, I can say at least 3

82taluver

That is interesting, the first RPO listed on the invoice I beleive is R6P. Ill get a pic so we can both see it.

AmorgetRS

iTrader: (6)

I'll throw out this possibility, the invoice lists R6P but the SPID sheet doesn't

The RPOs for my GTA came from compnine. The Canadian GTA actually had the SPID sheet and I specifically looked for the R6P RPO.

82taluver

That could very well be, I dont have the SPID sheet unfortunately. I lost it, yes I admit I lost it. Im still kicking myself over that. That is why I ordered the GM paperwork to verify and prove the GTA. I have the compnine report as well. I paid for the full rreport, but I really need to spend more time going over it. I dont really like the compnine set up, its jut a few pages of RPOs from all of 1991.

JT

iTrader: (1)

You asked what type of numbers are involved and if you subscribed to an advanced package, it allows you to select RPO codes to find out how many others are in their database. Not all VINs support it and we all know there is no 100% accurate source.

According to Compnine's database, they have 2,869 1991 GTAs in their database and 1,069 of those in their database have the R6P code.

82taluver

Ok I just re checked the compnine report and compared it to the GM invoice. It lists build date as the same on compnine and the GM invoice. So the compnine does have R6P AND R6A listed . Although I think I mis read the GM invoice. It lists R6A ??So Amorget you may have been spot on from the beginning. I apologize for the mix up, my brain was seeing what it wanted to see.

AmorgetRS

iTrader: (6)

Very interesting that compnine lists R6P. Would be interesting to compare the list of RPOs to see if there is a reason mine is missing R6P

92GTA

iTrader: (11)

Doesn't it also have to have N10 to get R6P? Maybe my age is starting to kick in but I thought N10 was part of R6P

My info (from the VIN decoder I had on TransAmGTA.com )shows this:

R6P - (19??-1990) CONTROL, SALES ITEM NO. 15, (1991-1992) PERFORMANCE PACKAGE, G92, N10, J65, KC4

If I recall KC4 was the oil cooler...

AmorgetRS

iTrader: (6)

My GTA has all of those things

82taluver

Yes mine also has n10. Also I have pics but am having trouble up loading them ill keep trying.

JT

iTrader: (1)

Brief instructions here:
https://www.thirdgen.org/forums/prob...mages-tgo.html

Otherwise you can email them to me at jt@thirdgen.org and I will add them to your post.

okfoz

I really suspect that the early 1991 GTA's and Formulas may not have had the R6P RPO.. Essentially the GTA should have automatically come with the equipment, as would have the Formula 350, and the Formula LB9/MM5. Only the trans Am was the performance equipment "optional" GM actually changed a few things mid model year around that time...

For example IIRC the early 1991 convertible Camaros had the plastic panels in the trunk, and the later ones went to the carpet... This changed around the normal time of when new models would be released. Little things like that.


R6P did not appear in the Order worksheets until 5/1990 in the 3rd printing.

R6P included Engine Oil Cooler, Dual Converter Exhaust, 4 Wheel disc brakes and Performance axle.

Optional:
Trans Am w/ LB9/MM5

Required
Formula w/ LB9/MM5
GTA w/ LB9/MM5
FORMULA w/ B2L (350)
GTA w/ B2L (350)
Trans Am w/ B2L (350)



John

TTOP350

iTrader: (8)

I wondered when it went to R6P, I see its still G92 in 89

okfoz

G92 and R6P are different on the Firebird

The Firebird's R6P acts more like the Camaro's G92, as it is a means to the performance gears, and some other goodies in 91 & 92...

Starting in 1988, G92 on the Firebird was a means to go to 1LE. I do not believe that after 1986, there are any G92 Firebirds without 1LE... I would be interested to see otherwise. I know that Camaros there are plenty of G92 (non 1LE cars) but not on Firebirds...

I actually do not think there are any G92 Firebirds in 1987... Neither of my LB9/M5 Formulas with the 3.45 gear have the G92 RPO, but they have the equipment... It was tied up in the W66 or the Y84 RPOs somehow with the LB9 & MM5

John

82taluver

Thanks for the help and input on this. I say at the end of the day I am just glad to have proof of Y84 .

TTOP350

iTrader: (8)

I always took G92 as the same thing as R6P, both were the performance axle/enhancement package with other things added, right?
You order 1LE and it adds G92 or R6P but if you order G92 or R6P you won't get 1LE..

On the birds, you just ordered 1LE if you wanted it and then it added what it needed, unlike the Camaros, where you had to hop on your left leg while feeding a bird with 1 hand and tying your shoe with the other to get 1LE.

AmorgetRS

iTrader: (6)

My GTA is 3/1990, which would make sense

90 GTA Black

Mine is 5/90 with no R6P. I'm not sure if it's a late or early model with that build date.

okfoz

Actually I thought to get 1LE you had to delete Everything, start with G92, and then it included the 1LE package. Then start adding on other options... Thus how some cars got T-tops, and even 1 car got A/C AND T-tops with the 1LE.

Furthermore, the TTA as a perfect example, had the 1LE brakes, but no 1LE RPO... It was tied up with the RPO for the TTA itself, or the VIN (not sure what the RPO for the TTA is)

G92 is used on the 1LE Firebirds from 88-92
G92 is used as the performance axle option on Camaros

okfoz

Keep in mind that the 3rd edition of the worksheet was released in 5/90, so it would have not gone into effect yet... More or less, I would assume that is when the dealer could start ordering the car with those options. So in reality the RPO on the cars would not show up until July or August, depending on how long it took to make the car after it was ordered.

FrankieRider2

Very interesting, indeed. John is correct; on Firebirds, the G92 option was the pathway to 1LE all the way back to the first mention of the G92 option via CDB is September of 1987. The 1LE option does not list under G92 until 1989.

The first time that R6P shows up in the CDBs is in June of '90 when the B2L engine was added as being available with the G92 performance axle. R6P is listed at that time as consisting of KC4, N10, and J65. But each option is shown individually on the February CDB listing only the 5.0L/MM5 combo has getting the G92 performance axle option.

The price on each '91 bulletin is listed as $444.00 MSRP, whether separate options or grouped together. Just adding a little info....

BrandonBbright

can someone please tell me what these rpo codes mean. Basic rundown of the options on my gta..thanks

90 GTA Black

Do a quick search and they should pop up for the year of your car. I can never rememwhat they all stand for but the info is readily available.

okfoz

R6P was basically the RPO for 91-92 for the performance axle (3.23 for L98, 3.42 for LB9+MM5) The Camaro called this the G92. It is confusing because the Formula and the GTA would have gotten the performance axle standard anyway as they did from 88-91. The R6P created specifically for for the Trans Am as an optional gear, as the performance gear was not available from 87-90 on the TA, unless you got a 1LE, which you then got the G92 (88-90). Then in 1991 Pontiac decided to offer the TA the performance gear option like what came standard on the Formula and GTA. This, in turn, ended up coming on Formulas and GTAs RPO tags along the way, even though they got the gear standard.

R6P is a performance RPO

DynoDave43

iTrader: (11)

It's easier to understand if you diagram it.

okfoz

Agreed.