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View Full Version : Smooth red valve cover and intake manifold - temp rated too!



onemoremile
04-03-2007, 06:28 PM
A couple thin coats of primer, one coat of orange, two coats of red. All coats are with Duplicolor ceramic engine enamel rated for 500 F. That coat of orange shows through under direct light like color shifting paint. You can see it where the flash reflects directly.

http://i23.photobucket.com/albums/b397/onemoremile/IMG_4185.jpg

http://i23.photobucket.com/albums/b397/onemoremile/IMG_4179.jpg

http://i23.photobucket.com/albums/b397/onemoremile/IMG_4176.jpg

http://i23.photobucket.com/albums/b397/onemoremile/IMG_4190.jpg

Rosati
04-03-2007, 06:30 PM
: X uh ohhhh

Nice! that color flares

Never saw a red IM but damn that should look good in the bay, esp on our black.

Im going w/ a wrinkle red vc and black IM when i get the turbo in

Dont forget installed pics!

Now all you need is a glowing BT to match em : )

AudiRacerS4
04-03-2007, 06:31 PM
very nice

onemoremile
04-03-2007, 06:32 PM
I've got a Vorsteiner vented carbon hood and the red will show through the vents. Should be pretty cool when it is all done.

pac1085
04-03-2007, 06:33 PM
Looks good!! Hopefully it'll last...here's what my valve cover looked like after a few months with that same exact paint, but silver instead of red:

Looked amazing at first...
http://farm1.static.flickr.com/100/294762650_67f1c93817.jpg

But turned into this...
http://farm1.static.flickr.com/121/294630103_fb837a7fcc.jpg

onemoremile
04-03-2007, 06:35 PM
Looks good!! Hopefully it'll last...here's what my valve cover looked like after a few months with that same exact paint, but silver instead of red:



It looks like heat caused most of your discoloration. Looks like I'll be doing a heat shield too.

Rosati
04-03-2007, 06:38 PM
damn phil , that wrinkle paint isnt too tough huh

either way the red should look good and Jim i think the paintll hold up fine , my high temp black hasnt shown one sign (even when cleaned) over time since i rebuilt my head and i used the dupli hi temp paint

A4 Sparks
04-03-2007, 06:40 PM
niceeee get some pics up after you got it done, also anyone ever do blue ? would love to see pics of that.

dubiraq05
04-03-2007, 06:41 PM
i like it. looks good!!!

pac1085
04-03-2007, 06:44 PM
damn phil , that wrinkle paint isnt too tough huh

That wasn't the wrinkle paint. It currently has the Krylon black wrinkle paint on it and still looks like new, that stuffs holding up great.

Ewok_Fetus
04-03-2007, 07:07 PM
Hahaha, I was going to ask if your car was Yellow... For some reason McDonalds came to mind...

SoFresh
04-03-2007, 07:42 PM
Thats pretty clean looking, I like how it changes colors from the orange to red, never would have thought of doing that. Post some pics once its all dried and put back on!!

docurley
04-04-2007, 03:12 AM
Nice was thinking of a blue for mine to match up with the samcos once I get the bay sorted out.

andernalin_junk
04-04-2007, 04:03 AM
i think that's too red ... too much plastic look

94jedi
04-04-2007, 07:20 AM
Jim that's kick ass!!!! I wanna do that now!!! one question - what about the IM retaining heat and not being able to act like a heat sink? Or do you have an intake mani spacer?

Oh also, what was your prep work like? I'm going to pick up a used VC and IM for this specific mod. I might switch to the ATW(is it the ATW's?) VC to get the updated pcv system.

mike-2ptzero
04-04-2007, 07:36 AM
Jim that's kick ass!!!! I wanna do that now!!! one question - what about the IM retaining heat and not being able to act like a heat sink? Or do you have an intake mani spacer?

Oh also, what was your prep work like? I'm going to pick up a used VC and IM for this specific mod. I might switch to the ATW(is it the ATW's?) VC to get the updated pcv system.

The spacers just help slow the heat transver process, it doesn't remove it completly. I have one on my car and did some testing. I found that it took just a little bit longer for the IM to heat up even at idle, it also allowed the IM to cool down a bit sooner between runs while the engine was off. But it wasn't a huge difference. The one thing I did not get to test was cylinder head temps which is one concern of mine.

I also think that painting the IM would cause it to retain more heat, but I could see doing something that would help remove the heat quicker.


The 2001 VC might be what you are looking for, it has the vent tube opening on the VC, some of the other years had it too but it still had the casting in the hole.

tunerb5
04-04-2007, 07:39 AM
i used that paint and its crap, discolors really easy from moderate heat.

SurferForever
04-04-2007, 08:02 AM
nice. should look good once its installed. How hard was it to take the intake manifold off? I gotta do it to change my gasket

EuroA4
04-04-2007, 11:34 AM
It looks like heat caused most of your discoloration. Looks like I'll be doing a heat shield too.


034 MS has a nice metal coil pack shield that might help to reduce heat coming from the turbo...but with a vented hood you might have more air escaping anyway?

Looks great in red!

mike-2ptzero
04-04-2007, 11:42 AM
034 MS has a nice metal coil pack shield that might help to reduce heat coming from the turbo...but with a vented hood you might have more air escaping anyway?

Looks great in red!

http://www.audizine.com/gallery/data/500/2716034_1_8t_coil_heat_shield.jpg

Sold without the sticker on it.

onemoremile
04-04-2007, 11:51 AM
That is the cover I was thinking of. Thanks for the pic Mike.

Heat retention should be a wash. I've got an intake manifold spacer but I don't think it really does much good in the real world. I'll be running meth/water injection so that makes heat retention a moot point. I just haven't decided if I'll run one sprayer per runner or one right before the throttle body. My preference at this point is to run one per runner an inch or two before the fuel injector.

nizmosx
04-04-2007, 11:55 AM
powdercoat FTW. nice job though, looks sick

onemoremile
04-04-2007, 12:08 PM
nice. should look good once its installed. How hard was it to take the intake manifold off? I gotta do it to change my gasket

IM removal isn't too bad. Pull the fuel pump fuse (20 amp - number 28?), remove the fuel filler cap, and start the car. It'll stall a few seconds later letting you know that the fuel system is depressurized. Remove all the vac lines and throttle body from the IM. Remove the screws holding down the fuel rail and pull the fuel lines from the plastic clips above the engine. Pull the fuel rail off and tuck one of it's lines over by the coolant reservior. You also have to remove the coolant passover tube somewhere in this process. All that is left is to remove the bolts attaching the IM to the head and the one brace under the throttle body. Then it just pulls off. It might take 30-40 minutes the first time you do it. It took me barely 10 minutes to get both the valve cover and intake manifold off.

onemoremile
04-04-2007, 12:16 PM
Oh also, what was your prep work like? I'm going to pick up a used VC and IM for this specific mod. I might switch to the ATW(is it the ATW's?) VC to get the updated pcv system.

I've got the AEB intake manifold (untouched - completely stock) that was on my car originally. I bought an extra and modded it before swapping. Let me know if you want it. I've also thought about installing the vented valve cover. I'll probably do it and a catch can when installing the new turbo system.

I used scotchbrite (normal and heavy duty), a couple scrub brushes, and Oil Eater for the first pass. I used long toothpicks to scrape the gunk out of the smaller areas. Then I used dish soap and scotchbrite to clean it up some more. The final cleaning was dish soap and a clean sponge with scratchy pad on the back. I rinsed it a few times and then set the oven for 200 degrees and tossed both parts in for 20 minutes to dry them completely. Then got the spray area ready and rubbed the parts down with a prep wipe. Then a couple thin coats of primer 10 minutes apart. Then the orange and two reds. Painting took 1 hour total. The parts are sitting in the basement curing right now. They won't go back on the car for a few days.

aaronamerica
09-06-2007, 07:16 PM
A couple thin coats of primer, one coat of orange, two coats of red. All coats are with Duplicolor ceramic engine enamel rated for 500 F. That coat of orange shows through under direct light like color shifting paint. You can see it where the flash reflects directly.

http://i23.photobucket.com/albums/b397/onemoremile/IMG_4185.jpg

http://i23.photobucket.com/albums/b397/onemoremile/IMG_4179.jpg

http://i23.photobucket.com/albums/b397/onemoremile/IMG_4176.jpg

http://i23.photobucket.com/albums/b397/onemoremile/IMG_4190.jpg

any pics of this installed

4ringAR
09-06-2007, 07:34 PM
didnt you have the valve cover crinkle red before? looks good, but i kind of like the look of crinkle red. i guess i will have to wait to see it installed, too.

Militant-Grunt
09-07-2007, 08:56 AM
damn phil , that wrinkle paint isnt too tough huh

either way the red should look good and Jim i think the paintll hold up fine , my high temp black hasnt shown one sign (even when cleaned) over time since i rebuilt my head and i used the dupli hi temp paint

Problem with wrinkle paint is that it takes a LOONG time to drive, and unless you have a garage or a place to leave the car while the valve cover is drying, its going to be tuff.

onemoremile
09-07-2007, 07:25 PM
The cover was stock before. The intake manifold's casting lines had been smoothed and the whole thing was knurled a bit with a burr and then clear coated.

Installed pics are spread over a couple threads but here are some more.

http://i23.photobucket.com/albums/b397/onemoremile/IMG_0786.jpg

http://i23.photobucket.com/albums/b397/onemoremile/IMG_0789.jpg

http://i23.photobucket.com/albums/b397/onemoremile/IMG_4254.jpg

onemoremile
09-07-2007, 07:28 PM
The manifold before.

http://i23.photobucket.com/albums/b397/onemoremile/IMG_2852.jpg

http://i23.photobucket.com/albums/b397/onemoremile/IMG_2851.jpg

port matching. this pic is from before the casting lines were cleaned up.
http://i23.photobucket.com/albums/b397/onemoremile/IMG_2837.jpg

ibew5audi
09-07-2007, 09:24 PM
onemoremile-your gonna spend alot of saturdays cleaning that engine after rain/dirt aren't you? Looks good. That nice, shiny condensor helps too. Looks like the throttle body might like a little polish or paint(silver/aluminum) job?

audiFUEGO
09-07-2007, 09:30 PM
that...looks....sick.

ur gonna have to clean it alot cause if that red gets dirty its gonna look worse than dirty stock

did you sand the outside?

audiFUEGO
10-11-2007, 06:06 PM
So does ceramic coating the IM help or hinder performance?

Same question for the valve cover.

I already coated my IM but now read that it might not be a good thing? should i remove the coat?

onemoremile
10-11-2007, 06:59 PM
It doesn't really matter one way or the other. Coatings can help reflect underhood heat but it will still get hot. The air coming from the intercooler isn't exactly cold either.

onemoremile
10-11-2007, 07:02 PM
4 months and 10k miles and they both look perfect even though I haven't cleaned them.

audiFUEGO
10-11-2007, 07:08 PM
so i should keep the coating on the IM? I could always remove it with some brake cleaner or something...

Do you think its worth ripping the valve cover off and coating that as well? Im not sure if i should color it red or blue... the IM is black

onemoremile
10-11-2007, 07:10 PM
I wouldn't bother. The only people I've heard of benefiting from coatings are V8 guys. They coat the underside of the intake manifold to reject heat from the hot oil.

audiFUEGO
10-11-2007, 07:19 PM
Thanks for the honest answer... I think i may do the valve cover just because i want to get rid of my stock engine cover and have a nice color...

ur color is badass i might just copy ur orange/red combo! [up]

I was just worried that the IM was a bad move but if you say otherwise then ill keep it... ur one of the few on here that i can trust to get good advice from everytime.. thanks broseph [:D][up]

ct1.8t4me
10-11-2007, 08:24 PM
For the record, this is what I was thinking when you said ceramic coating:

http://www.jet-hot.com/Pages/tech1.html

audiFUEGO
10-11-2007, 08:30 PM
How is that different from what i did? do they coat the inside of the mani also?

Im also thinking about doing a coat on my testpipe. what do u think?

ct1.8t4me
10-11-2007, 08:53 PM
How is that different from what i did? do they coat the inside of the mani also?

Im also thinking about doing a coat on my testpipe. what do u think?

I think coating the TP would be good - like I said, it would retain heat and therefore velocity of the exhaust gases. Coating the manifold would be a good idea as well. The increased velocity before the turbo would have theoretical gains.

audiFUEGO
10-11-2007, 09:30 PM
is it a pain to take the EM off?

ct1.8t4me
10-12-2007, 05:03 AM
is it a pain to take the EM off?

I've never done it - but my guess is that it would not be worth the trouble unless you had a reason to get in there and do it. The potential for breaking a stud or some other unforeseen mishap is probably proportionately greater than any gains to found ...

Maybe someone else will chime in.

onemoremile
10-12-2007, 06:19 AM
It isn't worth it just to pull it off and have it coated. If you are going to run a larger turbo then Swaintech Coating will help maintain higher exhaust velocity and should help with spool and keeping underhood temps down. Coating the exhaust manifold, HFC/TP, and downpipe is the way to go.

A couple posts ago he asked about intake manifold coating. That is the one that doesn't really help. Exhaust coatings do help especially on a turbo car. Commercially applied coatings are superior to anything you can do at home. Swain is superior to Jet Hot.

audiFUEGO
10-12-2007, 07:24 PM
onemoremile you say coating the IM doesn't really help... but can it potentially hinder performance?

auto_euroticaA4
10-13-2007, 11:15 AM
just did my brothers e36 valve cover...i used the parts wash & glass bead from work to clean it. looked awesome in the end.

Wizard-of-OD
10-13-2007, 12:26 PM
onemoremile you say coating the IM doesn't really help... but can it potentially hinder performance?

no

onemoremile
10-13-2007, 03:44 PM
I'm saying it doesn't do anything either way. The IM picks up heat from the head, the engine bay, and the intake air. Put a thermal insulating gasket between the manifold and the head and it will still get plenty hot from the ambient engine bay temps.