lt1zr28

How many of you know of this bad boy?This was a one of a kind IROC Turbo V/6.

kmcn47

you mean this?

also what the hell wheels are those on that car, they look so perfect on it to me, i want them!

BigWhiteGTP

Those are Ronals, the most popular aftermarket wheel in the 80's/90's for Thirdgens

kmcn47

They still made? Expensive?

lt1zr28

[QUOTE=kmcn47;5182829]you mean this?

Nope.Thats not an IROC Z.Here is some more info.TPI 4.3 with a THM-700 R4 was going to be a 5spd car but during testing there was rpm issues.
Anybody?

BigWhiteGTP

No longer made for a long time. Remember these are 80's aftermarket wheels. Just keep checking ebay. As for expensive, not really. I bet if you find a set, they can't be more than $400 from a nostalgic owner.

kmcn47

cool, however i still wanna know what an iroc evolution II is

lt1zr28

More info. Its color was called. Nuclear Plum Crazy.This was one of many prototype colors for use in '91-92 time frame.This IROC was an '87 model.
Anybody?

lt1zr28

Here is a in engine pic and interior pic

Jason E

I remember when MT tested it right around 1990, just as the IROC option was to be discontinued. It was a turbo 4.3 V6, sort of a test bed for the GMC Syclone. 0-60 was around 5 flat, and HP was 300-350...more than the Syclone's 280.

It was a bad car, and MT loved it. I wonder what happened to it...

lt1zr28

The IROC II was 200 lbs more than same stock IROC.It did 0-60 in 6.2.An the 1/4 in 14.8 @ 91.9 mph.First run clocked at 134 mph.295 hp.This was in june '88

Jason E

I wonder if I'm thinking of a different car then...I swore the 4.3 turbo was faster...

lt1zr28

That was first run test with 10 bls of boost.It most likely changed with some more tweaking

subroc

iTrader: (2)

No. These are ronals


Those are american racing gotti replicas

calamitascamaro

iTrader: (5)

Those wheels are basically one offs. They're concept wheels. And thats a concept car, so it makes sense. You can see those wheels up close if you have Gran Turismo 4 or 5, and you get the IROC Concept.

kmcn47

how much are these, where can i get some, an what does it take to make 16s fit? i assume nothing but better safe then sorry

kmcn47

however these are the ronals (r9s) he was reffering to, striking resemblance

kmcn47

nope those are different aswell

SweetRevelation

wow! you're hung up on these wheels like a 16 year old kid is hung up on his ex!

anyway, is there any pics/media on this "Evolution IROC II"??
all I seem to see is hearsay as if this thing is like the freakin' chupacabra

kmcn47

good one
i'd like to see it too, i wanna see the rims jk jk

lt1zr28

Hows this

kmcn47

oh yeah i have seen that there was a thread with it in it somewhere i'll see if i can find it

kmcn47

its in this one about midway down the page

https://www.thirdgen.org/forums/hist...are-third.html

they talk about it here

https://www.thirdgen.org/forums/hist...pened-all.html

heres another one about it
https://www.thirdgen.org/forums/hist...hp-anyone.html

thats all i know

calamitascamaro

iTrader: (5)

I stand corrected.

cerberus

great info here!

kmcn47

kinda off topic but does it bother anyone to think that some of the most valuable thirdgens could somehow end up in the hands of people who didn't know what they were or how much they meant to the thirdgen community and could be cut hacked and modified in ungodly ways?

InfernalVortex

iTrader: (4)

Those wheels are on project-RS's car.

Also, kind of interesting to see the origin of the dreaded swirlports in that article you posted up. Originally a performance trick for a Cavalier, used in a turbo v6... finally ending up as a low performance truck cylinder head. I have to assume they really did do a good job with swirl though. And without those swirl ports, GM would have never ventured into trying to replicate it in a less obtrusive way, resulting in the Vortec heads we all know and love.

kmcn47

yeah alot of really goo things have come from bad ones, kinda like having fertile farm land because it floods all the time lol

oh and not the ronals the AR gotti replicas, i want some for my maro

InfernalVortex

iTrader: (4)

Well he apparently got rid of them. This is a pic from one of his older threads:



https://www.thirdgen.org/forums/fabr...ront-chin.html

kmcn47

ahhh now i see, wonder if he still has them the more i look for some its like the harder they get to find

lt1zr28

Here is the Camaro GTZ its not the same as the IROC II.Here is pics of wheels & car

Twin_Turbo

iTrader: (25)

Those wheels are jongbloed wheels

Project-RS

iTrader: (1)

heres a better pic of when i had them. mine came off a 87 vette so i needed the 2" adapters. i should of kept them, but they needed some work:

Project-RS

iTrader: (1)

heres mine now, 17" ARE ones.

lt1zr28

Yes.That's what the pic say's.They were 16X10 with 255/50VR16 rubber on all 4

BigWhiteGTP

This dude has a set. https://www.thirdgen.org/forums/sout...nna-trade.html

And yes Subroc, those are also Ronals.

kmcn47

looking for the gotti replicas now, trying to get the look of the car i posted for my own 84z