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Hit the under side with a scrub brush and some simple green.

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Old 05-14-2010, 12:47 PM
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Hit the under side with a scrub brush and some simple green.

I was bored. I figure now would be a good time since the 12 bolt is waiting to go in. It worked very well. That simple green is good stuff.

Old 05-14-2010, 01:00 PM
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Re: Hit the under side with a scrub brush and some simple green.

Very nice and clean! So glad it's spring so work like this is worthwhile.
Old 05-14-2010, 01:09 PM
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Re: Hit the under side with a scrub brush and some simple green.

As if this car needed to be any more clean.... Looks great!
Old 05-14-2010, 01:15 PM
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Re: Hit the under side with a scrub brush and some simple green.

Originally Posted by Orr89RocZ
As if this car needed to be any more clean.... Looks great!
Yea, I got issues. Haha. I plan to have the 12 bolt in by late Sunday. I'm hoping to feel a big difference going from 2.77's to 3.73's.
Old 05-14-2010, 03:32 PM
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Re: Hit the under side with a scrub brush and some simple green.

I spy some grime on your shocks, you're slacking

Ever think about an undercoating, like a bedliner type material for the underbody?
Old 05-14-2010, 03:43 PM
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Re: Hit the under side with a scrub brush and some simple green.

very nice! stupid question but was the undercoating already removed before you did this? and how long did it take you? and is there anything you should be careful to not spray or scrub on? I bought one of those big bottles of oomph from k-mart for like 2bucks originally 8 or so hoping to clean up the underside some time. only thing is i gotta get the car moveable first!
Old 05-14-2010, 04:56 PM
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Re: Hit the under side with a scrub brush and some simple green.

Yea, I got issues. Haha. I plan to have the 12 bolt in by late Sunday. I'm hoping to feel a big difference going from 2.77's to 3.73's.
I've done the 2.77 to 3.27 then to 3.42's on bolt on L98 and its been a big difference each step. 2.77's to 3.73's will be reallly really fun Hope to change my 99 TA from 2.73 to 3.73.
Old 05-14-2010, 05:52 PM
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Re: Hit the under side with a scrub brush and some simple green.

Originally Posted by IROCThe5.7L
Yea, I got issues. Haha. I plan to have the 12 bolt in by late Sunday. I'm hoping to feel a big difference going from 2.77's to 3.73's.
You will man. you will not be disapointed, i went from 2,73 to 3,73 and shaved halfed a second off my 1/4mile times
Old 05-14-2010, 05:53 PM
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Re: Hit the under side with a scrub brush and some simple green.

Wow how clean, everything here rusts if it's clean and bare like that
Old 05-14-2010, 09:34 PM
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Re: Hit the under side with a scrub brush and some simple green.

I don't know what was under your car, but I had the Rusty Jones beeswax undercoating on mine. Simple Green worked great at dissolving it, but it would have required a lot of work to get everything. I found Gunk Gel engine degreaser, sprayed the undercarriage, let it soak and hit it with a pressure washer. Here's my results.

before:


After:


I forgot to mention that the right side was done manually with a rag and mineral spirits and took all day. I got a much better clean with the Gunk. I did have to use some Simple Green and a clean rag to wipe any residue left after the Gunk cleaning and this was the result.

Last edited by scottmoyer; 05-14-2010 at 09:53 PM.
Old 05-15-2010, 04:10 AM
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Re: Hit the under side with a scrub brush and some simple green.

Originally Posted by Primetime91
I spy some grime on your shocks, you're slacking

Ever think about an undercoating, like a bedliner type material for the underbody?
I'm having a heck of a time removing that grime on them. The shocks are the only suspension pieces left that are stock. They work fine, but I'll most likely buy new ones. I doubt I'll undercoat it. I really like the way it looks now.


Originally Posted by iroc stangs
very nice! stupid question but was the undercoating already removed before you did this? and how long did it take you? and is there anything you should be careful to not spray or scrub on? I bought one of those big bottles of oomph from k-mart for like 2bucks originally 8 or so hoping to clean up the underside some time. only thing is i gotta get the car moveable first!
I don't believe so. I'd guess it just didn't come out of the factory with any undercoating. It was just dirty. Some parts required more scrubbing than others. But before I even started, it was pretty darn clean under there to start with. It just wasn't shinny or as bright as it is now. It took about 4 hours. I used a 50/50 mix of simple green and water. There was really nothing to watch out for when doing it. It's pretty much all hard lines and stuff under there.


Originally Posted by Orr89RocZ
I've done the 2.77 to 3.27 then to 3.42's on bolt on L98 and its been a big difference each step. 2.77's to 3.73's will be reallly really fun Hope to change my 99 TA from 2.73 to 3.73.
Originally Posted by lordmetalz28
You will man. you will not be disapointed, i went from 2,73 to 3,73 and shaved halfed a second off my 1/4mile times
That's good to hear guys! My cars been screaming for gears ever since the H/C/I swap. Not to mention it was a coin flip as of late if the POSI was going to work on the 9 bolt. I did buy these though for the new 12 bolt:


Originally Posted by scottmoyer
I don't know what was under your car, but I had the Rusty Jones beeswax undercoating on mine. Simple Green worked great at dissolving it, but it would have required a lot of work to get everything. I found Gunk Gel engine degreaser, sprayed the undercarriage, let it soak and hit it with a pressure washer. Here's my results.
That looks excellent! I don't know if it didn't come with undercoating, or if it was removed at one point. But when I got under there, it was just dirty.


I don't know how many of you heard of this wax: http://www.autogeek.net/collinite-in...r-wax-845.html

But it is literally the strongest, longest lasting wax I have ever used. My buddies and I put a coat on our cars before winter. And it will last 6-7 months through a cold, wet, salty Buffalo winter. My car is a weekend warrior that doesn't even see rain. I'm confident putting a layer of it under the car now while it's clean will last quite a while.

Last edited by IROCThe5.7L; 05-15-2010 at 04:19 AM.
Old 05-15-2010, 05:27 AM
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Re: Hit the under side with a scrub brush and some simple green.

Originally Posted by IROCThe5.7L
Yea, I got issues. Haha. I plan to have the 12 bolt in by late Sunday. I'm hoping to feel a big difference going from 2.77's to 3.73's.
that feeling you'll get is you slapping yourself in the face going "Why didnt I do this sooner?!" lol car looks clean!
Old 05-15-2010, 08:37 AM
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Re: Hit the under side with a scrub brush and some simple green.

Looks pretty sweet man, looks like a new stock underbody iroc....

I Just spent 270$ on POR15 products (paint suit, brushes, 2 quarts POR15, marine clean, metal ready, gloves, etc.) and im going to do this cleaning first, and then do a full underbody undercoat with POR15 semi-gloss black.
Old 05-15-2010, 09:26 AM
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Re: Hit the under side with a scrub brush and some simple green.

Originally Posted by IROCThe5.7L
I was bored. I figure now would be a good time since the 12 bolt is waiting to go in. It worked very well. That simple green is good stuff.

Wow thats clean! Same with SCOTTMOYERs picture

Last edited by irock88; 05-15-2010 at 09:29 AM.
Old 05-17-2010, 07:59 AM
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Re: Hit the under side with a scrub brush and some simple green.

I need to do that sometime!
Old 05-17-2010, 01:28 PM
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Re: Hit the under side with a scrub brush and some simple green.

sick, thats clean.. do you ever drive that thing? LoL
Old 05-17-2010, 09:45 PM
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Re: Hit the under side with a scrub brush and some simple green.

Looking good. Simple Green is excellent stuff, especially when combined with a couple well-chosen brushes. I use it to clean the rear 'bowls' of my aluminum rims a couple times a year. To me an aluminum rim isn't really 'clean' unless the non-face section is too. (Maybe you're not the only one with 'issues' )

I love this shot of Scott's car too



My Camaro was Ziebarted by the original owner. I like the protection, but there's something really cool about being able to preserve and see a view like the above. To me it's a part of 3gen history. Maybe it'd be worth shooting it with clearcoat?

On my Camaro, I do re-apply rubberized undercoating in high-wear places like wheelhouses, as needed. Seems like a good low-budget solution, compared to more 'robust' stuff like Por15.

Last edited by Red90IROC; 05-17-2010 at 09:50 PM.
Old 05-17-2010, 09:57 PM
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Re: Hit the under side with a scrub brush and some simple green.

Did either of those immaculate chassis have undercoating on them?
I've laquer thinnered my to death and still have about a paints thickness of the black crap covering the factory paint.
Attached Thumbnails Hit the under side with a scrub brush and some simple green.-img_4805.2.jpg  
Old 05-17-2010, 11:57 PM
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Re: Hit the under side with a scrub brush and some simple green.

Originally Posted by Justin89Formy
that feeling you'll get is you slapping yourself in the face going "Why didnt I do this sooner?!" lol car looks clean!
Thanks. I guess in the long run it was a good thing our deal never worked out. Lol. I really wouldn't be happy with 3.27's with this setup.


Originally Posted by Brisk
sick, thats clean.. do you ever drive that thing? LoL
Lol sure do. But it's not a daily driver. I wouldn't consider the car as having low miles anymore. I got 75,200 miles on it currently.
Old 06-09-2010, 07:31 AM
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Re: Hit the under side with a scrub brush and some simple green.

Update: All done!



Old 06-10-2010, 12:29 AM
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Re: Hit the under side with a scrub brush and some simple green.

Thats just sick, very nice looking. I wish my car was as nice as everyones here on this site.
Old 06-13-2010, 08:08 AM
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Re: Hit the under side with a scrub brush and some simple green.

Originally Posted by IROCThe5.7L
Update: All done!


are spohn swaybars bigger then the stock iroc ones?
Old 06-13-2010, 08:25 AM
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Re: Hit the under side with a scrub brush and some simple green.

Originally Posted by skinny z
Did either of those immaculate chassis have undercoating on them?
I've laquer thinnered my to death and still have about a paints thickness of the black crap covering the factory paint.
What is the most effective product to use to remove undercoating?
Laquer thinner evaporates too quickly. Varsol or paint thinner isn't aggresive enough.
I'd like to remove the undercoating but leave the factory gray e-coat.
From the picture you can see that's it's in excellent condition.
Old 06-13-2010, 09:04 PM
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Re: Hit the under side with a scrub brush and some simple green.

I used a putty knife to remove the majority of the gunk under my car, then "purple power" to clean up what was left, worked for me. Once you get the 'thick' stuff off, it comes off easily enough
Old 10-05-2010, 11:07 AM
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Re: Hit the under side with a scrub brush and some simple green.

How do the new gears feel?
Old 10-05-2010, 11:21 AM
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Re: Hit the under side with a scrub brush and some simple green.

wowwwwwwwwwww you guys are lucky!!! lol if only my underbody was that pretty. wow. ive got a weekend coming up at the body shop with a grinder and por 15. not looking forward to it but must do it before the car comes off the road in about 6 weeks. ill take pics of how it goes.
Old 10-05-2010, 11:21 AM
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Re: Hit the under side with a scrub brush and some simple green.

let alone the fact that i just spend 140 for a gallon of paint!
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