detltu

iTrader: (1)

I would really appreciate some more info on any of these subjects. Particularly the SLP package and pictures of the 92 1LE Z03 cars

From previous searching I found this on the SLP cars:
https://www.thirdgen.org/forums/hist...-gtas-slp.html

Quote Acceld Z:
The full SLP package included.......
Cold air kit
Tri-y headers and y-pipe
2 on the left cat-back
Siamesed intake runners
Throttle body flow booster (optional)
Recalibrated PROM
Underdriven crank pulley (optional)
52mm Throttle body (optional)
If the car had these things installed as part of the SLP performance package a certification sticker was put on the rad support. The options that you chose where "punched" out of this sticker.

Also from 92 GTA (whose website no longer seems to work) it looks like the package cost around $2085 and was GM part number #12341398

Pretty cool stuff but I would love to see some pics of any cars with this package. Also I believe I have read that this was available on Camaros as well but I can't find any mention of it through my searches. Anybody with this package from the factory or old magazine tests or anything. Basically any more info would be awesome as well as pics of the sticker mentioned or just cars with this package installed.

detltu

iTrader: (1)

As far as the 1LE Z03 cars. some threads mention 7 or so known examples. Whatever the number is, it is clear there aren't many of them. If the number is 7 then at one time all seven cars could have been represented on thirdgen.org! Seven different usernames have mentioned owning a 1LE Z03 car. I have only been able to find pictures of I think 2 cars. It would be great if anyone could post some pictures of these cars and even better if we could get pics of all 7 of them.

One of the cars sold here on thirdgen.org
https://www.thirdgen.org/forums/cama...anniv-1le.html


I won't out the members who have these cars but it's a fairly simple search to find them. Hopefully some of them are active or know members on here who are still active so please post pictures if you have them!

Drew

iTrader: (58)

Well, the SLP package is relatively well documented. It was a dealer package, available over the counter, not a true GM option. SLP didn't offer an under-drive crank pulley, throttle body airfoil, or bored throttlebodies at the time that the kit was offered. All of that came out in the mid-late 90's. I'm pretty sure I've posted a pic listing what it included and how it performed...
Yep...

https://www.thirdgen.org/forums/post...721-post3.html

At the end of the day they were just normal cars with a few aftermarket parts. Not really all that special. Add headers, catback, a CAI, a custom tune, etc to any thirdgen and you'd have the same thing.

As for the 1LE/Z03 cars, Compnine is the only place that has any records that can be cross referenced, they show The thing to keep in mind is the difference between the Heritage Package (Z03) and the 25th Anniversary. Because technically every since 1992 Camaro is badged 25th Anniversary. The heritage package is just an emblem and stripes, so it's not exactly that special either.

detltu

iTrader: (1)

Thanks for the response. I somehow missed that thread and I went back to my search and it was totally there. The magazine article was great. Other threads suggest that there were Camaro's with the package installed from the dealership but I haven't seen any pics of a Camaro with the package installed. Only talk about ads that are no longer active.

Thanks again.

Drew

iTrader: (58)

Technically a person could buy the parts from a GM parts counter, or from SLP and install them on a Camaro. There was a time when SLP bothered to develop parts and get them certified, hence the name Street Legal Performance. The parts weren't extremely high quality, they didn't always fit or work better then others, they were just one of a few companies making an effort. Up until a few years ago they still offered most of the parts for our cars, but they've stopped production and closed out almost everything now.

Jason E

Its really sad SLP stopped supplying parts for these cars. My Z28 is full of SLP parts (all of which have fit well and proven very durable) that aren't available anymore. With the R&D long paid for, I can't imagine it costs SLP a ton to continue to make these parts available...its sad because in a better economy, I think a company that supplies 3rd and 4th gen parts could do well for itself.

Then again, no one asked me

92GTA

iTrader: (11)

Here are some pictures...

detltu

iTrader: (1)

Thanks for the pics and responses guys. I know that there is a lot of knowledge on this board on these subjects and I just can't get enough about these cars.

As far as the collectors edition it has been discussed on here quite extensively and Mark_ZZ3 has been an incredible source of information on those cars.

This website contains most of the knowledge out there from Mark_ZZ3
http://members.shaw.ca/tunedportinje..._never_was.htm

And this was an interesting thread with the Motorweek video.
https://www.thirdgen.org/forums/hist...prototype.html


I still can't get enough of this car. From the performance and specs it seems like this may have been a B4C 350 car with the SLP package and a 6 speed. I seem to remember one of the articles mentioning a special suspension on it as well. Also the black GTA style wheels with a camaro center emblem were sold for a while from Classic Industries. It seems like this would be an easy car to recreate.

Drew

iTrader: (58)

Except that most of the parts on that car weren't built by SLP. The runners are one off's, not SLP parts. Same with the headers. Back then SLP was still dealing in Tri-Y's.

The engine wasn't a typical GM F-car engine either. Note the external EGR passage, that with the Corvette valve covers lends to the theory it's a true Y-body engine.

In reality the only parts that really can be traced back to SLP are probably the transmission crossmember, and the bulge for the transmission tunnel. Those parts were offered by SLP in the last decade or so as they cleaned out a warehouse. They might have offered the modified ZF6 bellhousing for a time too.

The muffler shown in the pics sure looks like it has the old Dynomax Super Turbo logo stamped in it. SLP's muffler was the 2 on the left style, and it's fully welded, sorta diamond shaped, not a typical oval shaped muffler.

Edit: The number 17449 is visible on the muffler. WLK-17449 is a Walker/Dynomax Super Turbo with offset 2.5 inlet/outlet.

detltu

iTrader: (1)

Wow! Good spot on the muffler! Yeah upon review it probably has little SLP hardware. The SLP package actually provided more horsepower unless the GM High Tech performance 300hp number is to be believed. I also forgot that it got the Corvette aluminum heads. Was the cam different on the Corvette Motor as well?

Drew

iTrader: (58)

The 1991 Corvette L98 was only rated at 5hp higher then the Camaro (250hp). I can't see a set of semi-siamesed runners, headers, and the other subtle tweeks making another 50hp. The 270hp estimate is probably a lot closer.

It looks to have the standard large cap Corvette distributor (the divorced coil is usually in the way with that EGR). The pics don't really show if they used the Corvette or F-body fuel rail.

To get a run of the mill G92/L98 Z28 to perform as well (30hp stronger) it wouldn't take much. Even with those modifications that car was just as slow as most other G92/L98 Z28's of the same vintage. Low 14's are pretty easy to hit with a late L98 car with 3.23 gears, pull the air filter and you're there.