Jump to content
SAU Community

Worst Thing Would Happen To Diy Gone Wrong.

lcy

By lcy,
in General Automotive Discussion

 Share

Recommended Posts

lcy Rising Star

lcy

Posted
Posted

hey guys,

i have been reading some threads about DIY painting FMIC to black.

THings i have done are:

spraying it with etch primer x 1 layer or maybe abit more.

then let it dry. it says 10 minutes drying time (second layer wait for 1 hr) which i didnt read and i sprayed the high temp paint on it after 25 to 30 minutes.

i gave the intercooler a few layers ot the high temp paint. every thing seems nice n paint seems even.

after letting it to dry for half hour(says on bottle - dried to touch in 10 minutes) after 30 or so minutes. i installed the FMIC back into the car. gave it another 45 miuntes to dry.

And i started the car. drove it around n couldnt feel any problem.

been driving the car around for a few days. nothing seems to be wrong...

so what can go wrong?? losing cooling efficiency seems to be wat everyone been telling me. besides that wat can go wrong to the FMIC or even the car?

thanks in advance.

Sarumatix Veteran

Sarumatix

Posted
Posted

Paint is not a particularly good or bad conductor so it wont make much difference really. You'd have to set up some experiments to confirm that. That said if all you care about is performance, painting it black really can only hamper the flow and heat exchanging. Up to you whether that is as important as the aesthetic or 'stealth' factor.

R32Abuser Mentor

R32Abuser

Posted
Posted (edited)

black attracts heat more so than what the color of aluminium will...something you dont want in a heat soak. I.e. say your in the sun, it will get hotter than if it were just left unpainted-something which will hamper performance. However, it also sheds heat quicker than any other color i.e. say your in the shade or the cooler is well covered then it will lose heat quicker than if it were left unpainted.

Really as stated earlier it makes sweet fa difference to performance. Main factor it changes is the attention you get-good and bad. Its up to you but iv left mine unpainted and it saves you having to paint it every so often after the paint eventually flakes off.

Edited by R32Abuser
TezGT-R Rising Star

TezGT-R

Posted
Posted

Itll slow down the heat exchange rate a little bit (though not enough to worry about unless you put on like 5 coats). If your really worried about it use paint stripper on it and then get the cooler black ANODIZED. Changes the outer layer of material rather than coating it. And it can make it a little bit tougher depending on what anodizing you use. Plus it will never flake off.

Good luck

joeyjoejoejuniorshabadoo Grand Master

joeyjoejoejuniorshabadoo

Posted
Posted

leewah did this a couple of months back (but he had micolour piant it...) my guess is that he researched the pro's and cons a fair bit before he did it to a 10 sec car

KISIN Veteran

KISIN

Posted
Posted
leewah did this a couple of months back (but he had micolour piant it...) my guess is that he researched the pro's and cons a fair bit before he did it to a 10 sec car

did what, sorry im not sure what you referring to (obviously not the glad wrap idea :banana:), the spraying or anodizing ?

Stinky Rooster Grand Master

Stinky Rooster

Posted
Posted

OK, your problem will have uncovered a few other issues you may need to consider (despite all the other replies being full of "dun worry dude, its all good" etc etc etc.

Firstly, your "rice" level has just taken a nose dive big time! You may find that the monster tacho with a redline of 15 00000000000rpm is now completely redundant. This is not cool!

Apart from the complete lack of "fuwwly HeKtIc BrO" you will recieve at the local drive thru Macca's, your chance of picking up "wif teh womenz" will be significantly lower.

The only thing that can save this is a crapload of neons STAT!!!! A GTR badge is also highly recommended, as is a complete shopping list down both doors (bonus "uleh's" if you can slip a random Ralliart or Mugen sticker in there as well.) Oh, no matter what else happens, get a dose pipe or one of those frontal lobotomy inducing BOV's (y'know, the ones you can get from supercheap that are so loud they give you brain surgery unasked?)

Just be grateful that you didn't try this on a Honda - your v-Tec's would be horribly low due to the leakage this influx of stealth would bring!

(BTW, in al seriousness, the colour of your intercoooler will only be affected by the amount of heat it is able to reflect, ie black reflects f**k all heat and light, whereas white reflects almost all - if your 'line is white, I think that would be a much better way of hiding it and not affecting the cooling capacity)

R34GTFOUR Mentor

R34GTFOUR

Posted
Posted
(BTW, in al seriousness, the colour of your intercoooler will only be affected by the amount of heat it is able to reflect, ie black reflects f**k all heat and light, whereas white reflects almost all - if your 'line is white, I think that would be a much better way of hiding it and not affecting the cooling capacity)

true, but black also disperses heat faster

white fmic would look as ugly as sin

  • 2 weeks later...
tom_v Rising Star

tom_v

Posted
Posted

I heard that if its black but properly sprayed so that it wont come off like a can will, it will actually be better for the car as the black draws the heat out of the cooler just like black radiators.

Is this right?

R34GTFOUR Mentor

R34GTFOUR

Posted
Posted
I heard that if its black but properly sprayed so that it wont come off like a can will, it will actually be better for the car as the black draws the heat out of the cooler just like black radiators.

Is this right?

yes, black also disperses heat fastest but it also absorbs it the quickest.

So in a a location like where the radiator is under the bonnet, there is no light contact so black is a good choice to disperse heat. On the front of the car with a big fmic on show, black would absorb heat faster just sitting there in the sun, but once you were driving around it would also disperse heat faster.

Either way it would make bugger all difference in most applications, and the only real reason you would do it is for some sort of "stealth" effect

Fat_Tony Collaborator

Fat_Tony

Posted
Posted

THe colour of something will only effect its ability to absorb light energy.

White reflects light heat, black absorbs light heat.

So unless u have a 1kw floodlight in front of your fmic, colour don't do sh!t

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share
Go to topic listing


  • Latest Posts

    • GTSBoy
      Unknown sound similar to BOV on positive boost with partial throttle RB26

      By GTSBoy · Posted

      I don't think the shuffle can damage the turbos. It only happens at low shaft speeds and loads. It's just annoying (to some people - others are tickled by the effect) and it quite possibly reduces spool performance a little bit.
    • Murray_Calavera
      Steps to DIY sanding car back ready for respray....

      By Murray_Calavera · Posted

      Oh dear. The panel beating needs to be done before the filler work. Do you have a photo of the dent before you started? Hard enough to not flex and only hit the high spots?  What do you mean it was just temporary? 
    • Manur33
      Vag Coil Diy loom wire guage selection

      By Manur33 · Posted

      Can u check this way it works for power supply?
    • Manur33
      Vag Coil Diy loom wire guage selection

      By Manur33 · Posted

      These coils draw 10amps that what i read online
    • nouveau_poor
      Unknown sound similar to BOV on positive boost with partial throttle RB26

      By nouveau_poor · Posted

      I appreciate the detailed explanation, think I understand now. I spent the better part of last night reading what I could about shuffle and potential solutions. I had replaced the OEM twin turbo pipe with an alternate Y pipe that is separated further away from the turbo. The current one is from HKS and I had a previous pipe that was separated even further away, both have shuffle. I had heard that a divider can be welded in to the OEM pipe to remove turbulence, and figure that aftermarket pipes that are more separated would achieve the same thing. From what I read, most people with -10 turbos get shuffle due to their size, though it's a bit less common with -5s on a standard RB26. I think Nismoid mentioned somewhere it's because OEM recirculation piping is common in Australia with -5 cars. It seems that the recommendation tends to vary between a few options, which I've ordered in what I think is most feasible for me:  1. Retune the MAP or boost controller to try to eliminate shuffle 2. Install OEM recirculation piping 3. Something called a 'balance pipe' welded onto the exhaust manifolds. I don't know if kits for this are available, seems like pure fabrication work 4. simply go single turbo My current layout is as follows: Garrett 2860 -5s HKS Racing Suction intake MAF delete pipes HKS racing chamber intake piping hard intercooler piping,  ARC intercooler HKS SSQV BOV and pipe Haltech 2500 elite ECU and boost solenoid/controller HPI dump pipes OEM exhaust manifolds HKS VCAM step 1 and supporting head modifications Built 2.6 bottom end All OEM recirculation piping was removed, relevant areas sealed off I'll keep an eye out for any alternative solutions but can get started with this.  Only other question is, does shuffle harm the turbo (or anything else)? It seems like some people say your turbo shafts will explode because of the opposing forces after a while and others say they just live with it and adjust their pedal foot accordingly. 
×
×
  • Create New...