Phase I done, Phase II-interior almost done, and now Phase III-drivetrain (454 LSX!)
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Not a thirdgen... but gives you an idea:

For a really hardcore setup... you make a custom backing plate that the hose attaches to.... but this can cause complications as the hose will eventually fail from constant flex and rubbing.
Here is an example of a hose directly on a backing plate:

Remember you also have a coil spring in the way...

For a really hardcore setup... you make a custom backing plate that the hose attaches to.... but this can cause complications as the hose will eventually fail from constant flex and rubbing.
Here is an example of a hose directly on a backing plate:
Remember you also have a coil spring in the way...
Last edited by johnyIROC; Oct 19, 2006 at 07:14 PM.
Supreme Member
Joined: Feb 2001
Posts: 2,033
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From: North Canton, Ohio
Car: 1982 Firebird
Engine: sbc 307
Transmission: 200
Apparently I've been away for too long! This thread is all new to me, boy was I missing out. That thing looks great. I especially like what you are doing with the door handles. That's just killer! Keep up the good work.
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From: Canada
Car: 1979 Malibu
Engine: Blown LSx
Transmission: T56 Magnum
Axle/Gears: 9"/wavetrac/35's/3.70
a good suggestion for door popper is do what the hod rodders do, wire in a set of chrging posts in the back of the car like a race car or hot rod would, if the battery dies, just charge it through those!
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Yes, that is a Photoshop.
I'm still looking into how well the 4th gen bumper cover curvature matches the flat 3rd gen bumper cover, and how much is involved in modding the inner bumper support, as to the metal portion of how it attaches, as far as clearing the 4th gen exhaust cutouts.
I don't wanna steal Niel's thread though.
I'm still looking into how well the 4th gen bumper cover curvature matches the flat 3rd gen bumper cover, and how much is involved in modding the inner bumper support, as to the metal portion of how it attaches, as far as clearing the 4th gen exhaust cutouts.
I don't wanna steal Niel's thread though.
Supreme Member
Joined: Jul 2000
Posts: 1,787
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From: Tomball, TX
Car: 89 TTA
Engine: Turbo 3.8
Transmission: 200R4
Man, it's been so long since I've even been able to work on a car. This thread doesn't help either, lol. Hell, I still have some three year old HMS strut mounts in the closet that I never got the chance to install. One day my project will actually start up again, but for now, this thread will just serve as inspiration.
Your car seems to be undergoing quite a transformation and I must say that so far it is looking pretty nice. Let me know the first Houston area show you participate in and I'll be there to check out and give my praise in person. Goodluck!
Your car seems to be undergoing quite a transformation and I must say that so far it is looking pretty nice. Let me know the first Houston area show you participate in and I'll be there to check out and give my praise in person. Goodluck!
Thread Starter
Senior Member
Joined: Jul 1999
Posts: 888
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From: Houston, TX
Car: '87+'02 Z28
Engine: 454 LSX
Transmission: T-56, Viper output shaft
Axle/Gears: Strage 12-bolt 3.73:1
I like the door popper-charging post idea, but what brand/manufacturer do you guys recommend? I want something reliable, any ideas?
As always, thanks for the kind words!
As always, thanks for the kind words!
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Joined: Aug 2005
Posts: 852
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From: Springfield, Oregon
Car: 85 Z28, 88 GTA, 68 Cutlass S
Engine: 305TPI X2 ;), Chevy 250
Transmission: T5, 700R4, powerslide >:(
Axle/Gears: posi, and posi w/discs :D.
actually alot of car alarms come with backup batteries, so incase they disconect your battery your alarm still goes off.
maybe you could do something similiar to that.
or i always thought that itd be easy to leave the rear hatch key and if it dies, just get in that way.
maybe you could do something similiar to that.
or i always thought that itd be easy to leave the rear hatch key and if it dies, just get in that way.
On Probation
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Joined: Feb 2005
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From: So Cal
Car: 87 IROC-Z
Engine: LsX
Transmission: MN12 6speed
Axle/Gears: 3:42
Supreme Member

Joined: Sep 2005
Posts: 2,151
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From: Osceola Indiana
Car: 92 RS(sold) 1989 IROC-Z
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: ones that turn
Yes, that is a Photoshop.
I'm still looking into how well the 4th gen bumper cover curvature matches the flat 3rd gen bumper cover, and how much is involved in modding the inner bumper support, as to the metal portion of how it attaches, as far as clearing the 4th gen exhaust cutouts.
I don't wanna steal Niel's thread though.
I'm still looking into how well the 4th gen bumper cover curvature matches the flat 3rd gen bumper cover, and how much is involved in modding the inner bumper support, as to the metal portion of how it attaches, as far as clearing the 4th gen exhaust cutouts.
I don't wanna steal Niel's thread though.
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
My tips exit almost EXACTLY where the "frame" meets the rear bumper metal structure bolts to. So, the 4th gen style has too deep a notch to fit, without "frame modification. Of course, this was all eyeballing it without measuring the depth, so I can't be 100% sure, just 99%.
Learning that much, I didn't bother to check how much difference there is in curvature, or if it could be "massaged" into place.
I guess, custom notches would hafta be made, and smaller tips than what I have now. Some day...
Thread Starter
Senior Member
Joined: Jul 1999
Posts: 888
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From: Houston, TX
Car: '87+'02 Z28
Engine: 454 LSX
Transmission: T-56, Viper output shaft
Axle/Gears: Strage 12-bolt 3.73:1
Ok, finally I found some time to get back on the thirdgen board, I have been swamped at work! I have pics of the new fuel door, I believe John pulled it off a '91 or '92 Suburban, it's amazing how well it fits.
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
That's just a stock gas door, in a stock 3rd gen quarter opening? Not the whole sheetmetal and dor together?
If so, cool to know of a new source of doors for our cars.
If so, cool to know of a new source of doors for our cars.
yes, while it is a stock door, please realize this WILL NOT just screw on or bolt on, we spent about 4 hours fab time to get the thing in and some welding on tabs to get the screws to work, also some inner fender cutting. So please don't get the door and tell me it won't work. I'm telling you right off the bat that it won't just bolt on....
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Joined: Aug 2005
Posts: 852
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From: Springfield, Oregon
Car: 85 Z28, 88 GTA, 68 Cutlass S
Engine: 305TPI X2 ;), Chevy 250
Transmission: T5, 700R4, powerslide >:(
Axle/Gears: posi, and posi w/discs :D.
lookin awesome!
cant wait to see some color on it!
cant wait to see some color on it!
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From: Iowa
Car: 1987 IROC
Engine: 350 vortec
Transmission: TH350 3500 stall
Axle/Gears: 3.73 10 bolt grenade
I'm definitely inspired to get workin on my car now, hopefully I'll be able to restore it over this winter. That looks AWESOME, can't wait to see it finished
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From: WINDSOR, CO
Car: 91 Z28, 87 SC, 90 IROC, 92 RS
Engine: LS1, 305 TPI, L98, NADA
Transmission: T56, 700r4's, and NADA
Axle/Gears: 3.89, 3.42, 3.23, NADA
Did you guys end up making functional brake ducts for the car? If so please share!!!!
I cannot wait to see this in paint. Make sure to post some finished pics in the appearance board.
I cannot wait to see this in paint. Make sure to post some finished pics in the appearance board.
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Joined: Sep 2003
Posts: 1,408
Likes: 2
From: Western Maryland
Car: 82z28
Engine: 406
Transmission: th350
Axle/Gears: 3.23
I like the functional duct idea, but i dont see how the routing from the fender vents will work well, if at all. A more common place is the fog light/vent or turn signal holes. On my 82 I plan on moving my turnsignal inboard to where the stock "grille vents" were and using the turn signal openings as scoops for the brake ducting.
Im not sure how much lower the 85+ gfx are than the 82-84 but i think it would be interesting to see a set of ground effects extended like an 1" or so longer. Like on the earnhardt camaro..you know the one with the real iroc hood louvers...
Im not sure how much lower the 85+ gfx are than the 82-84 but i think it would be interesting to see a set of ground effects extended like an 1" or so longer. Like on the earnhardt camaro..you know the one with the real iroc hood louvers...
Thread Starter
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Joined: Jul 1999
Posts: 888
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From: Houston, TX
Car: '87+'02 Z28
Engine: 454 LSX
Transmission: T-56, Viper output shaft
Axle/Gears: Strage 12-bolt 3.73:1
Yeah, I can't wait to see my car painted as well! Bruce at Hawk's Thirdgen just shipped driver and passenger power mirrors to the shop, so hopefully John will have them in a day or so! Then, once I find the door switch assembly and have John do yet another sweet custom install, the car will be ready for paint! What I am trying to do is have a push-button switch (similar to the C6 vette) which will allow you to open the door by sliding your fingers/hand in the frenched in area and pushing the button and then the door pops open. Necessary, you ask? No. Is it overkill? ABSOLUTELY!!!!!
I think the brake ducts will work (but probably not effective as what you have described), however, considering that I don't plan on taking the car to the race track much, this is not an issue. I am sure it will be pretty slick when it's done, especially since John has been doing a stellar fabrication job on this car!
I like the functional duct idea, but i dont see how the routing from the fender vents will work well, if at all.....
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Joined: Jul 1999
Posts: 888
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From: Houston, TX
Car: '87+'02 Z28
Engine: 454 LSX
Transmission: T-56, Viper output shaft
Axle/Gears: Strage 12-bolt 3.73:1
Ok, I think these might be the last pics of the car you will have to see in primer......The photo in the middle is from the engine comp. area where the fuel vapor canister was located (some cars might have the battery on this side). John welded in a piece of metal so that it is nice and smooth!
Last edited by Neil; Oct 25, 2006 at 07:25 PM.
yes, the ducts will be functional. We have cut holes in the rear of the new front spoiler, we're welding about a 2.5 to 3in steel piece to the inside of each fender well and then routing the plastic and steel (dryer vent style) hose to a fabricated bracket either on the rear of the brake assembly or control arms. we'll have to see what works best when we get there. Hope that answered your question...as always I'll provide Neil with pictures of this fabrication.
Joined: Oct 2004
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Car: 2012 Corvette
Engine: LS3
Transmission: TR6060
The Corvette door handle mod is really awesome by the way. Something I'd love to do. I don't really like having the grab the underside of a handle, I like just something there to grab and pull (like the handles on the new Chevy trucks and BMW sedans).
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Joined: Oct 2001
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From: Olean NY USA
Car: 1985 Camaro Z28/1989 Pontiac Trans Am GTA
Engine: 305 tpi/350tpi
Transmission: 700r4
Seems that it is coming together nicely.....I've said it once and I will say it again, I can't wait to see it in paint!
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From: Peoria, IL USA
Car: 91 GTA
Engine: 377ci
Transmission: T56
Axle/Gears: QP Ford 9" 3.70s
Neil, I wouldn't mind helping you fund the project, by buying the miniram of your original engine
That is nice work! I am happy to see someone go nuts on a thirdgen. As I tell all my friends who think I am nuts, "It is not an investment, its a hobby".
I think those mods are absolutely awesome and the tire size is rediculous. I am running 305's on ROH Drift R 18s. From my experience racing, you may want to roll the inner fender lip before you paint. That is if your sticking to something resembling the stock suspension geometry in the rear. In my personal experience, setting the car up soft enough to take rough cornes and stick allows the body to rotate in such a way that big tires arc through the path of the inner fender lip.
I am not sure this will be true with your fender mod, but I thought I would throw it out there.

That is nice work! I am happy to see someone go nuts on a thirdgen. As I tell all my friends who think I am nuts, "It is not an investment, its a hobby".
I think those mods are absolutely awesome and the tire size is rediculous. I am running 305's on ROH Drift R 18s. From my experience racing, you may want to roll the inner fender lip before you paint. That is if your sticking to something resembling the stock suspension geometry in the rear. In my personal experience, setting the car up soft enough to take rough cornes and stick allows the body to rotate in such a way that big tires arc through the path of the inner fender lip.
I am not sure this will be true with your fender mod, but I thought I would throw it out there.
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Car: 1985 z-28
Engine: 350ci
Transmission: 700-r4
I see you welded the batt tray area on the pass side. I'd recomend welding up both front trays and the sides that go through to the fenders. Makes it real smooth.
Your car is coming along very nicely.
Your car is coming along very nicely.
Thread Starter
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Joined: Jul 1999
Posts: 888
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From: Houston, TX
Car: '87+'02 Z28
Engine: 454 LSX
Transmission: T-56, Viper output shaft
Axle/Gears: Strage 12-bolt 3.73:1
Silverbird....who is foxy?
Oh and Tommy Z28, very nice!!!! I do really like how you have sealed that area up. Are you going to put the battery in the trunk and are you going to drill a hole through the side panel for you parking lights?
Oh and Tommy Z28, very nice!!!! I do really like how you have sealed that area up. Are you going to put the battery in the trunk and are you going to drill a hole through the side panel for you parking lights?
Last edited by Neil; Oct 28, 2006 at 06:18 PM.
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From: Houston Area
Car: Faster
Engine: Than
Transmission: You!
Instead of either one of us making a special trip, just pick up your 4thgen steering column when you take the rest of the interior parts back to Dallas.
Have you guys welded in the door popper cages yet?
Have you guys welded in the door popper cages yet?
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Posts: 12,212
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
So...What was the decision on how to handle the extra space between the taillights and the license plate? Extended black parts or reverse lights, like a C5 ?
Thread Starter
Senior Member
Joined: Jul 1999
Posts: 888
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From: Houston, TX
Car: '87+'02 Z28
Engine: 454 LSX
Transmission: T-56, Viper output shaft
Axle/Gears: Strage 12-bolt 3.73:1
What are the door popper cages?
For the rear license plate area, "we" (Vintage is) are going to extend the black plastic pieces and we'll see how it looks. I think it will look fine especially when looking at the earlier pictures John took. Let me know what you think. I don't want the back end to look too busy with the addition of more lights.
For the rear license plate area, "we" (Vintage is) are going to extend the black plastic pieces and we'll see how it looks. I think it will look fine especially when looking at the earlier pictures John took. Let me know what you think. I don't want the back end to look too busy with the addition of more lights.
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From: Houston Area
Car: Faster
Engine: Than
Transmission: You!
I thought you were going to have to weld a tiny box on the inside lip of the door to hold the door popper button/switch..... hence door popper cage. Or, has the idea changed?
Thread Starter
Senior Member
Joined: Jul 1999
Posts: 888
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From: Houston, TX
Car: '87+'02 Z28
Engine: 454 LSX
Transmission: T-56, Viper output shaft
Axle/Gears: Strage 12-bolt 3.73:1
Oh, I see what you are saying. Yeah, the switches will be in on Wednesday, so John will then start fabbing up a housing for the switches to go on the inside/side of the door. I'll post pics when he gets the switches and starts with the fabrication.
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From: Houston Area
Car: Faster
Engine: Than
Transmission: You!
Something else to think about....... If he welds in the boxes for the switches, just make sure you are able to remove/replace the switches if necessary without have cut/grind. Should be interesting...
Thread Starter
Senior Member
Joined: Jul 1999
Posts: 888
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From: Houston, TX
Car: '87+'02 Z28
Engine: 454 LSX
Transmission: T-56, Viper output shaft
Axle/Gears: Strage 12-bolt 3.73:1
Yeah, switch removal won't be a problem. As for the color scheme......
last week John picked up the paint for my car and the color is GM Imperial Blue Metallic. A nice, solid dark blue. I think it will look good, ok I am hoping it will look awesome! The car will be one solid color and the emblems will be painted on the front and rear bumpers. I haven't decided if I will put any graphics on the rocker ground effects yet, but none of the original style emblems will be going back on the car.
The power mirrors arrived yesterday and I think John is prepping them today. Also, the greaseable hinge repair kit arrived last week from AndysZ28.com and I will be really happy to have those in, so that my doors won't creak anymore!!!
last week John picked up the paint for my car and the color is GM Imperial Blue Metallic. A nice, solid dark blue. I think it will look good, ok I am hoping it will look awesome! The car will be one solid color and the emblems will be painted on the front and rear bumpers. I haven't decided if I will put any graphics on the rocker ground effects yet, but none of the original style emblems will be going back on the car.
The power mirrors arrived yesterday and I think John is prepping them today. Also, the greaseable hinge repair kit arrived last week from AndysZ28.com and I will be really happy to have those in, so that my doors won't creak anymore!!!
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iTrader: (12)
Joined: Jul 1999
Posts: 12,212
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From: Bertram (outside Austin), TX
Car: 87 GTA
Engine: L98
Transmission: 700R4
Axle/Gears: Dana M78 3.27 posi
Thread Starter
Senior Member
Joined: Jul 1999
Posts: 888
Likes: 0
From: Houston, TX
Car: '87+'02 Z28
Engine: 454 LSX
Transmission: T-56, Viper output shaft
Axle/Gears: Strage 12-bolt 3.73:1
With the emblems, I think I will do something a little different. I am going to talk with graphics guy and see what he thinks would be cool and what he can do. But, I am pretty sure they will look slightly different and they will definitely be painted, but as far as how crazy I go with them I am not sure yet.
Stephen Too funny!!!!
Stephen
Look forward to a review on those...I know my rocker panels and latches would appreciate me redoing the hinges on my car. Some of the paint on the door sill has already given up and left!
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Posts: 4,098
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From: WINDSOR, CO
Car: 91 Z28, 87 SC, 90 IROC, 92 RS
Engine: LS1, 305 TPI, L98, NADA
Transmission: T56, 700r4's, and NADA
Axle/Gears: 3.89, 3.42, 3.23, NADA
Neil, What vehicles are using the Imperial blue hue? There is a blue that I am completly in love with on some of the new GM's, and have it planned in my wish book to paint my next camaro that color.




Thats amazing!