How awesome is your underbody?
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From: Beautiful BC
Car: '88 IROC-Z / '91 Z28 / '91 GTA
Engine: LT4 Hot Cam 305 / L98 355 / MR 383
Transmission: 5-spd / 700R4 / 700R4
Axle/Gears: 3:45 / 3:23 / 3:23
thats pointless.. I bought my car to drive it so I can actually enjoy it, not sit around and look at it.
...and my undercarriage is as clean and neat as yours?!
...and my undercarriage is as clean and neat as yours?!
Supreme Member
Joined: Feb 2005
Posts: 1,286
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From: Torrance, CA
Car: 1991 Camaro RS
Engine: THE LT1 SWAP SHALL BEGIN!!!!
Transmission: 700 R4
Axle/Gears: LSD! =(
I agree, but if you have other cars... use them instead of the third gen. I wish I had a beater.
Joined: Aug 1999
Posts: 19,282
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From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
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From: NY
Car: 86 Iroc
Engine: 383
Transmission: TH350
Axle/Gears: 3:73s!
And also you went cheap with it in the back by the exhaust where it makes its first bend to go over the axle, cause you can still see the old stuff....
Joined: Feb 2005
Posts: 4,506
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From: West Warwick RI, postal code: 02893
Car: Building LS3, T56 Z28
Engine: LS3
Transmission: T-56
Axle/Gears: Moser/ 4.11
DOn't listen to these guys, if you like to take care of your car. Then by all means, do so. I personally like to go to car meats and shows and look at cars, and am allways curiouse how they look underneath. When they are nice on top and on bottom, it impresses me 10 times over. Means that it is a whole package. And that it will be around years longer than the guys who let the poor cars rust to bits.
Anyways, since the last posters don't seem like they have much to post in terms of pics, here is my undercaridge. And I am proud of my POR-15 coating job.
front

back

and the good old *** shot to bring it all home.

I am done
Anyways, since the last posters don't seem like they have much to post in terms of pics, here is my undercaridge. And I am proud of my POR-15 coating job.
front

back

and the good old *** shot to bring it all home.

I am done
Joined: Aug 1999
Posts: 19,282
Likes: 103
From: Lawrence, KS
Car: Met. Silver 85 IROC/Sold
Engine: 350 HO Deluxe (350ci/330hp)
Transmission: T-5 (Non-WC)
Axle/Gears: Limited Slip 3.23's
Here's of couple of mine: https://www.thirdgen.org/forums/atta...ber-mounts.jpg
https://www.thirdgen.org/forums/atta...-what-diff.jpg
JamesC
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Joined: Feb 2005
Posts: 4,506
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From: West Warwick RI, postal code: 02893
Car: Building LS3, T56 Z28
Engine: LS3
Transmission: T-56
Axle/Gears: Moser/ 4.11
Nice, those summit dif. covers look great and I bet add a good amount of rigidity. Maybe i should get one for my Moser 12 bolt??? Another thing to add to the, "will get over winter" list.
Hope people keep posting, these pics are almost more interesting to see than the outside or interior pics. Its something different, plus we get to see what really makes your car go.
-Dennis
Hope people keep posting, these pics are almost more interesting to see than the outside or interior pics. Its something different, plus we get to see what really makes your car go.
-Dennis
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Joined: Jan 2003
Posts: 1,786
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From: Paxton, MA
Car: 1987 Camaro Z28
Engine: 335 TPI Stroker
Transmission: Tremec TKO 500
Axle/Gears: 10 bolt / 3.42
Looks good man. I personally get under the car once a year and clean everything up and undercoat it. I think its a great thing to do and probably helps it last alot longer, plus it looks better. I clean underneath about everytime i have it up on a lift. I do the underneath with flat black, and wheel wells in gloss black.
I guess i just like keeping all the big-dollar items that are under my car clean. Aint nothin wrong with that!
I guess i just like keeping all the big-dollar items that are under my car clean. Aint nothin wrong with that!
Truck Bed Liner
I was thinking of using a paint on truck bed liner for my undercoating has anyone done this or even tried how hard is it and will it work.
You know the kindda like rino liner stuff
You know the kindda like rino liner stuff
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Joined: Apr 2004
Posts: 2,139
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From: MN
Car: 1986 Camaro SC (Supercool)
Engine: one composed of various metals
you know, I never got around to undercoating my car, but last year when I had to do the clutch swap, I spent a few hours taking off all the caked on grease and oil that was down there and I was suprised to see the stock paint and no rust....made me happy
Joined: Feb 2005
Posts: 4,506
Likes: 92
From: West Warwick RI, postal code: 02893
Car: Building LS3, T56 Z28
Engine: LS3
Transmission: T-56
Axle/Gears: Moser/ 4.11
POR-15 is a great way to go. If you wanna do rino skin that is allways another route. POR-15 will be less $. I saw a 69 once that was all rino lined in and out. It was done on a frame-off type resto on a rotisery. If you just wanna get some undercoating and don't plan on making a show stopper for years to come, then just get a gallon of POR-15, some zinc phosphate primer that they sell and go nuts. Stuff works great.
I did 2 coats under, 3 coats in the wells, and 1 coat inside. Once the car is done I plan to take a saturday and SLOWLY paint all the other parts in gray that are not allready Sphoon powder coated red. The light surface rust kills me. I hate seeing it on parts 3 days after i buy them. UGH!!
It will take a long as time, but when I am done it will all be sealed up tight.
More pics anyone? this thread is pretty interesting.
I did 2 coats under, 3 coats in the wells, and 1 coat inside. Once the car is done I plan to take a saturday and SLOWLY paint all the other parts in gray that are not allready Sphoon powder coated red. The light surface rust kills me. I hate seeing it on parts 3 days after i buy them. UGH!!
It will take a long as time, but when I am done it will all be sealed up tight.
More pics anyone? this thread is pretty interesting.
I like clean undercarrages too...
I was luck thou, My '91 was very clean. All I do is wipe on some of the light "Rust Check" oil (red stuff) using a rag to keep the underside looking good. I don't drive the car in the rain and up here in Canada the winters are a no-no...
-Andrew
I was luck thou, My '91 was very clean. All I do is wipe on some of the light "Rust Check" oil (red stuff) using a rag to keep the underside looking good. I don't drive the car in the rain and up here in Canada the winters are a no-no...
-Andrew
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Joined: Sep 2005
Posts: 717
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From: Edison nj.
Car: 84 firebird
Engine: 400 sbc
Transmission: th350
Axle/Gears: 3.08
My under carrage isnt clean, but I know their are lots of greese,cob webs and a burn mark by that cat, now my floor booard is damn near clean as a whistle
Supreme Member
Joined: Apr 2006
Posts: 1,206
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From: Morganton, NC
Car: '92 T/A WS6 Vert/1956 Chevy Nomad
Engine: 350 TPI
Transmission: 700r4 w/ Transgo Kit
Axle/Gears: 3.42 LSD
How do you guys go about cleaning your underbody? Do you use a pressure washer, or just lots of hard scrubbing and elbow grease?
Thread Starter
Supreme Member
Joined: Nov 2005
Posts: 1,975
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From: Indianapolis
Car: 1991 Z28 (sold)
thats pointless dude, you just undercoated your car, and took pics and said it was all clean. lol. You can see on the exhaust sheild where do didnt even do a good taping job. You can also see by the brake and fuel lines that under them is missed too.
And also you went cheap with it in the back by the exhaust where it makes its first bend to go over the axle, cause you can still see the old stuff....
And also you went cheap with it in the back by the exhaust where it makes its first bend to go over the axle, cause you can still see the old stuff....
and nice pics Dennis!! ive always loved the underbody of your car, everything is new!
thanks for the pics so far, i made this thread so people could show off
and i do drive the car at least 2 times a week lol. im not the kind of person who would buy a car and just let it sit. if i had it my way i would keep the car garaged and drive it only on nice days.
Joined: Feb 2005
Posts: 4,506
Likes: 92
From: West Warwick RI, postal code: 02893
Car: Building LS3, T56 Z28
Engine: LS3
Transmission: T-56
Axle/Gears: Moser/ 4.11
Thanks for the compliment. I am def one of the lucky ones to get to put as much $ as I have into my car. I run out of $ again by x-mas, so I better be done by then. Looks like I will be.
Hey you guys seem to be checking this thread pretty often, does someone wanna go to utube and see if they can find my video I uploaded of my car last night? I can't check to see if it is there from my work PC.
Thanks guys.
one last thing. POR-15 is pretty wasy to clean too. Soap and water go a long way, just wish I was able to say how good it is against road grime. My car hasn't had a chance to experience that kinda stuff yet.
Oh well. Soon enough
Hey you guys seem to be checking this thread pretty often, does someone wanna go to utube and see if they can find my video I uploaded of my car last night? I can't check to see if it is there from my work PC.
Thanks guys.
one last thing. POR-15 is pretty wasy to clean too. Soap and water go a long way, just wish I was able to say how good it is against road grime. My car hasn't had a chance to experience that kinda stuff yet.
Oh well. Soon enough
Joined: Feb 2005
Posts: 4,506
Likes: 92
From: West Warwick RI, postal code: 02893
Car: Building LS3, T56 Z28
Engine: LS3
Transmission: T-56
Axle/Gears: Moser/ 4.11
YouTube - dennis' camaro
Turn up the volume really loud. The small digital camera had the mic on the top by my finger so the sound sucks. I will get a better video once I set my valves.
Turn up the volume really loud. The small digital camera had the mic on the top by my finger so the sound sucks. I will get a better video once I set my valves.
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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
Here is the only shot I have. I cleaned and prepped the floor pan and painted with a undercar flat black paint. It looked awsome till the first time used the pressure washer on the bottom side. I will be using the POR- 15 next time I feel like doing that much cleaning.

What do you guys think about painting the exhaust to bring back the original color? As you can see mine looks like crud!

What do you guys think about painting the exhaust to bring back the original color? As you can see mine looks like crud!
Joined: Feb 2005
Posts: 4,506
Likes: 92
From: West Warwick RI, postal code: 02893
Car: Building LS3, T56 Z28
Engine: LS3
Transmission: T-56
Axle/Gears: Moser/ 4.11
wayfast84 do some of you guys even have oil in your engine?
I don't get it....
just to clarify, is this the logic that goes on in your head:
clean car = no oil
I don't get it....
just to clarify, is this the logic that goes on in your head:
clean car = no oil
Supreme Member
Joined: Apr 2006
Posts: 1,206
Likes: 4
From: Morganton, NC
Car: '92 T/A WS6 Vert/1956 Chevy Nomad
Engine: 350 TPI
Transmission: 700r4 w/ Transgo Kit
Axle/Gears: 3.42 LSD
Dennis, is yours the car with the lambo doors on it? I recognized the house and the mis-matched door and fender in the video.
When do you think you'll be done with the project?
When do you think you'll be done with the project?
Joined: Feb 2005
Posts: 4,506
Likes: 92
From: West Warwick RI, postal code: 02893
Car: Building LS3, T56 Z28
Engine: LS3
Transmission: T-56
Axle/Gears: Moser/ 4.11
yup. I am the lambo door guy. Should all be done in about a month.
I am gonna put a video up of me geting out and using the lambo doors once I finish making the door panels.
I am gonna put a video up of me geting out and using the lambo doors once I finish making the door panels.
Joined: Sep 2005
Posts: 6,258
Likes: 6
From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
thats pointless dude, you just undercoated your car, and took pics and said it was all clean. lol. You can see on the exhaust sheild where do didnt even do a good taping job. You can also see by the brake and fuel lines that under them is missed too.
And also you went cheap with it in the back by the exhaust where it makes its first bend to go over the axle, cause you can still see the old stuff....
And also you went cheap with it in the back by the exhaust where it makes its first bend to go over the axle, cause you can still see the old stuff....
+1I havne't undercoated my car yet, there's no need really just yet. My car has a very clean undercarrige. I'll undercoat it before winter gets here because it doesn't look like i'll be able to afford a DD yet. Also, when I do the undercoating I'm gonna use the POR-15 or whatever it's called.
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From: Caledon, Ontario
Car: 11 F350 CC DRW Dsl
Some real nice looking underbodies on the various cars.
I'm not a fastidious car cleaner myself (mine's white, wax all you like and it still looks the same) but I can appreciate the work that goes into some of these. My underbody is clean and rust free but not undercoated or painted other than what the factory put on.
I'm not a fastidious car cleaner myself (mine's white, wax all you like and it still looks the same) but I can appreciate the work that goes into some of these. My underbody is clean and rust free but not undercoated or painted other than what the factory put on.
Senior Member
Joined: Mar 2006
Posts: 633
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From: Point Pleasant, NJ
Car: 1987 Chevy Stepside
Engine: 350 TBI w/ a Cam
Transmission: 3 Speed Stick w/ granny low
My under isnt so nice but my exhaust is better! And yes I do agree if your car is any less than a weekend warrior sell it so someone can enjoy it.
Thread Starter
Supreme Member
Joined: Nov 2005
Posts: 1,975
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From: Indianapolis
Car: 1991 Z28 (sold)
I havne't undercoated my car yet, there's no need really just yet. My car has a very clean undercarrige. I'll undercoat it before winter gets here because it doesn't look like i'll be able to afford a DD yet. Also, when I do the undercoating I'm gonna use the POR-15 or whatever it's called.
Joined: Sep 1999
Posts: 1,405
Likes: 8
From: Grand Rapids, MI
Car: 1985 IROC-Z
Engine: Magnacharged LS1
Transmission: T56
Axle/Gears: Ford 9" 4:11's
Here's my piece of crap before the 4 inch exhaust. Yes the car is driven.....about 3-4K miles a summer.
Joined: Sep 2003
Posts: 25,895
Likes: 429
From: Pittsburgh PA
Car: 89 Iroc-z
Engine: 555 BBC Turbo
Transmission: TH400
Axle/Gears: MWC 9” 3.00
wow ur cars are reallly clean guys! good job. just cuz you have a clean underside doesnt mean u cant drive it.
my car had a bad oil leak for over a year. really nasty underthere, but i since fixed that leak and got most of the underneath cleaned up. powerwasher, a brush and lots of degreaser helps. i have a little ways to go, and i would love to undercoat the car with something, but thats way down the road when i actually get time to restore it up like that.
2 pics in link in my sig, mainly of my torque arm but u get the idea. not bad for a 150k miles car
my car had a bad oil leak for over a year. really nasty underthere, but i since fixed that leak and got most of the underneath cleaned up. powerwasher, a brush and lots of degreaser helps. i have a little ways to go, and i would love to undercoat the car with something, but thats way down the road when i actually get time to restore it up like that.
2 pics in link in my sig, mainly of my torque arm but u get the idea. not bad for a 150k miles car
Senior Member
Joined: Dec 2004
Posts: 627
Likes: 2
From: Warren, MI
Car: 1989 Firebird Formula
Engine: 305 T.B.I. (Vin tag "E" = LO3)
Transmission: THM-700-R4
Axle/Gears: 10 bolt posi 3.23
thats pointless dude, you just undercoated your car, and took pics and said it was all clean. lol. You can see on the exhaust sheild where do didnt even do a good taping job. You can also see by the brake and fuel lines that under them is missed too.
And also you went cheap with it in the back by the exhaust where it makes its first bend to go over the axle, cause you can still see the old stuff....
And also you went cheap with it in the back by the exhaust where it makes its first bend to go over the axle, cause you can still see the old stuff....
Supreme Member
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From: Northern, VA
Car: Pair of 92 Z28s
Thread Starter
Supreme Member
Joined: Nov 2005
Posts: 1,975
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From: Indianapolis
Car: 1991 Z28 (sold)
and lol Steve
i thought he was going to put a hamster wheel in there Supreme Member
iTrader: (45)
Joined: Dec 2003
Posts: 3,970
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From: Northern, VA
Car: Pair of 92 Z28s
Joined: Sep 2005
Posts: 6,258
Likes: 6
From: O'Fallon, MO
Car: 1991 Z28 convertible built 3/1/1990
Engine: Cammed 6.0L LSX
Transmission: T56
Axle/Gears: custom Ford 8.8", 4.10 gears
Supreme Member

Joined: Sep 2005
Posts: 2,151
Likes: 0
From: Osceola Indiana
Car: 92 RS(sold) 1989 IROC-Z
Engine: 350 TPI
Transmission: 700R4
Axle/Gears: ones that turn
Man i want to undercoat my underbody how long does it take prep, and work
all your underbodys look awesome by the way
all your underbodys look awesome by the way
Supreme Member

Joined: Apr 2003
Posts: 1,664
Likes: 62
From: Plano IL
Car: 92 Firebird,74 Nova
Engine: Stock tbi,Vortec 350
Transmission: T56, th350
Axle/Gears: 3.73 LSD, 2.73 open
Man you guys have some nice underbodies
Mine is fairly clean for having 85,000 miles on it and as far as I can see the 2 Illinois winters I had outside (under a cover) was the only time it has seen snow.
The only decent pic from under, would like to repaint some of the stuff with the rust on it and good scrubbing on the rest.
Mine is fairly clean for having 85,000 miles on it and as far as I can see the 2 Illinois winters I had outside (under a cover) was the only time it has seen snow. The only decent pic from under, would like to repaint some of the stuff with the rust on it and good scrubbing on the rest.
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From: Calgary, AB, Canada
Car: 1982 Trans-Am
Engine: 355 w/ ported 416s
Transmission: T10, hurst shifter
Axle/Gears: 10 bolt, true-trac, 3.73
I didn't have a chance to read this whole thread but...
I undercoated my car, and I think the exhaust heat is starting to melt it off... It's really black and greasy everywhere, and I can't see any oil leaking in those places, so I think the undercoating is "sweating" off... Just an FYI, take a look at yours in a while, and let me know if it does the same... Maybe I just drove through too much fresh asphault...
But yea, I gotta get it up on a lift sometime and pressure wash the underside... But with a driver car like mine is, it leaks too fast for me to keep it clean
I undercoated my car, and I think the exhaust heat is starting to melt it off... It's really black and greasy everywhere, and I can't see any oil leaking in those places, so I think the undercoating is "sweating" off... Just an FYI, take a look at yours in a while, and let me know if it does the same... Maybe I just drove through too much fresh asphault...
But yea, I gotta get it up on a lift sometime and pressure wash the underside... But with a driver car like mine is, it leaks too fast for me to keep it clean
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Joined: Aug 2006
Posts: 256
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From: indiana
Car: 86 Z-28
Engine: 355 small block XR276HR roller cam
Transmission: TCI built 700r4 2000 lockup stall
Axle/Gears: moser axels auburn posi 3:73 gears
good post its alot of work to keep one that clean even with a power washer would love to get a lift jack stands just dont give you much room maybe one day ill get there winter project maybe love drivin it to much for any other time of year. i really like pullin up behind a rod thats clean uderneath looks cool. good job guys
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Joined: Jun 2005
Posts: 691
Likes: 16
From: Owasso, OK
Car: 87 iroc
Engine: 410 sbc
Transmission: tremec 3550
Axle/Gears: 30 spline 3.73

here's one of mine. i just got the exhaust done and subrames welded in. should have finished pics of it soon. the exhaust is custom 2.5" y pipe into a single 3" thru a dynomax muffler. best looking exhuast i have ever seen. the guy that did it has crazy skills.












