Jump to content
SAU Community

Are "worn In" And Old Intercoolers Better Than New Ones?

Spunky Munky
 Share

Recommended Posts

Chrisrotary Apprentice

Chrisrotary

Posted
Posted
Inter coolers are painted black from factory for thermal efficiency ...

matte Black is able to dissipate heat far better than any unpainted alloy surface

Sounds funny I know but research it

I thought that only related to black absorbing all the colour in the light spectrum thats why its perceived by our brain as black because no light is reflected. to same effect if you leave a black object out in sun it will get warmer quicker because the black paint will absorb more of the light (electromagnetic waves) from the sun. where a white object will reflect the light and also heat.

I wasn't saying it would make a big difference tho your right.

I was only thinking in terms of bees dick, width not length.

djr81 Grand Master

djr81

Posted
Posted
Inter coolers are painted black from factory for thermal efficiency ...

matte Black is able to dissipate heat far better than any unpainted alloy surface

Sounds funny I know but research it

I thought that only related to black absorbing all the colour in the light spectrum thats why its perceived by our brain as black because no light is reflected. to same effect if you leave a black object out in sun it will get warmer quicker because the black paint will absorb more of the light (electromagnetic waves) from the sun. where a white object will reflect the light and also heat.

I wasn't saying it would make a big difference tho your right.

I was only thinking in terms of bees dick, width not length.

This has been done to death a million times. But anyway.

There are two key mechanisms for dissipating heat from an intercooler:

conductivity & emissivity.

Both are obvious in the way they function.

Painting an intercooler black improves the heat transfer due to emissivity but lessens it due to conductivity.

Conductivity is by far the more influential of the two mechanisms which means you degrade the performance of the intercooler if you paint it. On the upside it helps stop it corrode from salt etc.

So don't paint it if you want it to work at its best.

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


  • Similar Content

  • Latest Posts

    • TurboTapin
      R32 GTST - 600KW+ RB28/CD009 Build

      By TurboTapin · Posted

      I just got to work and skimmed through 61508 and 61511. I was surprised the CSA adopted both, but neither are enforced. To recap what I read, it states that in a perfect world, they should be segregated but they acknowledge that this is not industry standard and clearly mention that they allow mixing of safety and non-safety. 61511 also mentions software segregation like AB does in their safety PLC's.   Now if only I could go back to control, let alone safety over comms. In my current line of work, we're only allowed monitoring and basic control over comms. Everything critical must still be hard wired as much as possible. 
    • TurboTapin
      RB25DET Solid lifter conversion

      By TurboTapin · Posted

      I've unfortunately never been as they're on the complete other side of the continent and another country that isn't currently letting us in as easily as they use to. I even heard their stop signs over there actually say "Stop" instead of "Arret". If I decided to trek the 48h drive, I wouldn't know when or where to stop haha. Whenever I order parts from UP Garage, I order from Japan as it's cheaper. Same with GKTech... oddly enough, it's cheaper shipped from Australia then it is the US.  UP Garage Japan operates their US leg though, unlike Tomei. If Tomei JPN had the power to close down Tomei USA, I'm sure it would be done in a day. They're two completely separate entities. Tomei JPN messed up somewhere originally agreeing to its creation and got sacked big time. 
    • KKaplumbaa
      SR20 to cefiro

      By KKaplumbaa · Posted

      I asked someone about this and he told me about the Audi 1.8T engine. But I think it would be difficult to swap
    • MBS206
      The Cool Tools Thread

      By MBS206 · Posted

      I don't know that machine specifically, but I'd personally go for something with a little more kick than 130amp. Around up to 180 would be good. At the 6mm range, you're really pushing the machine hard and don't have a long period you can run for with out needing to give it a rest. Lots of MIG machines come with a regulator and hose. A lot will come with a starter roll of wire too, but it isn't too expensive to buy. I'd recommend NOT buying a massive roll too, as you don't want it sitting around FOREVER in the machine between uses and potentially going to shit. For thin sheet metal, get a roll of 0.6mm if you're doing over 3mm and above, switch over to 0.8mm wire. Even by 2mm you'd probably really want to switch. As for gas battle, it's all swap and go style now. You'll pay a bottle deposit, and then X amount to swap for a full one. I think it's like $200 or $300 for a D Size bottle upfront as "deposit", and like $110 to $150 per swap. My D size CO2/argon bottle lasts a fair bit of welding on the MIG. And I run an E size bottle on the TIG. For DIY MIG, stick with a D size bottle. If you really start to get into a LOT of welding and doing it really regularly, then upgrade. If you're like most DIY car guys, one D bottle will last you 2 or 3 years easily. I think I've been on my current bottle about 5 years. It is starting to get low, but I've been smashing it a lot more the last 6 months.
    • KKaplumbaa
      SR20 to cefiro

      By KKaplumbaa · Posted

      SR20s came with cars like the Bluebird and Primera, but the RB20 never came. The ones in Turkey were either brought in specially or from abroad. That's why RBs aren't as common as SRs. And if a part breaks or I need to replace it when doing maintenance, it's harder to find parts for RBs.
×
×
  • Create New...