1991 3000GT VR-4 twin turbo

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1991 3000GT VR-4 twin turbo

Post by The1Bobco on August 19th 2011, 1:53 am

Alright well Ive researched this a while since My paintjob is a $200 maco paintjob (or cheaper if possible) and after a year of ownership it has turned from red to pink, the paint is flaking off and I can literally watch it fade more and more by the month, I cant even wax it because i end up with pink wax (as in the wax is pulling up pigment) THAT BEING SAID, I have decided to give my car a self paintjob until I decide if I want to hold onto it for several more years or sell it. I rebuilt the 3.0L engine last year and after pulling it I sent it to a shop and bored it to 3.3L, larger injectors and a fuel remap provided just under 360 hp, and torque was 336. so this summer its time to try to repaint so her outer beuty matches her inner beuty.

QUESTIONS/ PLANS:

alright well Im going to lay out my current plans for how im going to go about painting it and please correct me before I go out and do something stupid/wrong...

SANDING
First im going to sand the hell out of it since i know it ahs at least 3 layers of paint on it (unknown color, black, and now red) so I would like to sand at least 2 of those off and i was thinking about using an orbital 120-180 grit, followed by hand/block sanding of 320.

PRIMING
Once im down at least 2 layers (im not going to metal) I wipe everything down with alcoohol (70%, 90% what?) than I plan on painting 2 layers of dupli-color primer at a 60/40 mix paint/ laquer thinner with a currently unknown dry time between coats (6 hours, 12 hours, 1 day?) Once primed I was going to hit it with 220 orbital, 320 dry block, and im unsure but i was thinking about doing a guide coat after the 320 dry block, and than 320 dry block sand the guide coat followed by a 400 wet sand, I really couldnt find much useful information about guide coats, but i know good prep work will result in much more desireable finish, so if you could tell me when to put on the guide coat along with what to sand it with, it would be of great help.

COLOR CHOICE/paint choice
I really wanted a dark blue, however i cannot find anyone with a very nice glossy dark blue, so Im not sure if I can even do this color. If anyone has some links to a great rolled on dark blue let me know, because I searched about 100+ of the project cars and only found 1 person using a dark blue and he still has not finished (he was painting with the rustoleum topside navy blue) and while that color looked pretty good, if no one can get a dark blue to shine than id rather be safe and go for reds, which i have seen done very well. I know lighter colors are supposed to be easier, so if you think dark blue is a bad idea let me know, Id rather have a nice red rather than a flat blue. the second part of this question has to do with using rustoleum topside rather than the regular rustoleum. It seems like topside has been easier to work with, but there are less examples of its use. The topside blue looks pretty good but I saw topside also has a red color, but have not seen any examples of this so Im nor sure if its any good, ideas/suggestions?

PAINTING


wipe area with alcohol, than use 60/40 mix of paint/mineral spirits, paint a single coat, let it set, paint a second coat 12 hours later, sand with 600grit the next day
-repeat above 3-4 times (for a total of 6-8 layers depending on problems etc)

once the final coat is on, I believe im supposed to wait about a month before doing the final wetsand at 1500 grit, than wetsand at 2500 grit (by hand) and than compound/polish
2 months after this I can wax it (correct?)

please let me know if this sounds about right before I get to deep.
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Re: 1991 3000GT VR-4 twin turbo

Post by 86 stang on August 19th 2011, 6:06 am

welcome
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Re: 1991 3000GT VR-4 twin turbo

Post by rmdhokie on August 19th 2011, 5:46 pm

I haven't seen Rusto Topside blue in person, but I really like Brightside dark blue. 1989 Honda project on this forum.

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Re: 1991 3000GT VR-4 twin turbo

Post by The1Bobco on August 19th 2011, 7:17 pm

alright, well at least ive finally seen a well done dark blue,I still may stick to red just because its supposed to be easier, however I might order some dark blue and test paint some sheet metal I have out back.
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Re: 1991 3000GT VR-4 twin turbo

Post by wantajav on August 19th 2011, 8:04 pm

Yes:

Red can be WELL done. appears to go on thin, so be patient.

Check out Robogeek's posts on this forum --a true inspiration

On the samba.com check out Joesplace's posts--killer Regal Red bug
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Re: 1991 3000GT VR-4 twin turbo

Post by The1Bobco on August 27th 2011, 3:04 pm

just a bit of an update, here was the first pass of sanding with 120, next will be hand sanding by 220 and than hand sanding with 320, and than should I primer, or should i do a final pass with 400 grit before priming?

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Re: 1991 3000GT VR-4 twin turbo

Post by 86 stang on August 27th 2011, 4:42 pm

i would go up on the grits as much as you can stand it before primer popcorn
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Re: 1991 3000GT VR-4 twin turbo

Post by The1Bobco on August 27th 2011, 4:53 pm

alright ill do a final sand of 400, and if really motivated ill do a wetsanding with 600 before priming, and Ill get some photos once its nearing sanding completion

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Re: 1991 3000GT VR-4 twin turbo

Post by cac1967 on August 27th 2011, 5:10 pm

I would do the 600 sanding before priming.Remember, a great paint job is all in the prep,whether it's sprayed ,rolled , or with rusto or any automotive paint Very Happy
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Re: 1991 3000GT VR-4 twin turbo

Post by retired plumber on August 27th 2011, 8:26 pm

Its true the prep is 90% of the job but I personally think 400 for the final sand is plenty.
Mike
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Re: 1991 3000GT VR-4 twin turbo

Post by The1Bobco on September 28th 2011, 10:45 pm

Man it feels like its been forever, but I had finals so i had to take 2 weeks off to focus on school work, anyways sanding is like 95% done, it needs one more pass with 600 wetsand, which will take about 2 hours, and than its ready for primer. Any tips on primer application, or when i should put my guide coat on?

pictures of its current sanding status






and here is where you learn all about the history of your car (replaced panel) and theres some bondo in the back on the driver side, but its not super thick bondo so its not too bad.

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Re: 1991 3000GT VR-4 twin turbo

Post by cac1967 on September 29th 2011, 9:54 pm

Prime the car,then put your guidecoat's on,probrably two coat's of primer,then mist on your guidecoat's!! thumbs up
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Re: 1991 3000GT VR-4 twin turbo

Post by 63Falconconvert on September 30th 2011, 9:41 am

I would load up 2 heavy coats of a good filler primer. Get yourself a long board (16") and a 6" or 8" board. What I did was buy 2 long boards from Harbor Freight, cut one so I have a 6" board and a 10" board. (look at page 4 of my thread in the project section)
Your car looks pretty straight, my Falcon isn't so I start with 80 grit, block it right down to nothing, reprime, block with 180 grit, reprime block with 220,reprime 320, 400. As you go up in grit you will be putting on less primer as it builds on your panel.
80% of your primer ends up on the garage floor.
I use cheap black primer as a guide coat, dries super fast and sands easy.
Hope this helps
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Re: 1991 3000GT VR-4 twin turbo

Post by The1Bobco on October 14th 2011, 3:29 am

Alright so i did 2 coats primer but my first coat was too thin (I was learning) and right now i have maybe 90% coverage, should i paint a third coat and than sand, or sand it now as is? The plan is to sand it with a longboard with 180 grit and than reprime, and sand again with 220 or 320, Im not hardcore enough to sand and reprime it 4-5 times seeing that primer is the most expensive part ($90 per 1 gallon dupli-color can) Im gone till monday so i wont be able to sand till next tues/wed but if i could get some feedback before than it would be great.


Photo's lie a bit, they look like full coverage but its really not, in the picture of the top of the car you can start to see what i mean by 90% coverage.







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Re: 1991 3000GT VR-4 twin turbo

Post by dean_af on October 14th 2011, 8:53 am

Looks good. You have to love working in a small garage. My garage is even smaller Neutral
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Re: 1991 3000GT VR-4 twin turbo

Post by cac1967 on October 14th 2011, 9:53 pm

90 buck's for duplicolor primer ? I work for a major auto part's store , we sell the duplicolor primer by the gallon for $39.99 a gallon, lookin really good,I would now start with my guide coat and start my block sanding!!! thumbs up
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Re: 1991 3000GT VR-4 twin turbo

Post by RoboGeek on October 15th 2011, 7:41 pm

looking good!
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Re: 1991 3000GT VR-4 twin turbo

Post by retired plumber on October 15th 2011, 11:07 pm

I would use 320-360 grit for the primer. 180 (to me) is way overkill at this point and would take most of the primer off and make deep scratches. If you have good coverage now just use the 320, re mask, wipe down and PAINT, PAINT, PAINT.
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Re: 1991 3000GT VR-4 twin turbo

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