Rust inside intercooler pipes
 

My ic tubes have some surface rust inside. When I ran a wire brush through quite a bit of debris/rust came out. According to Stephanie, just need to wire brush it and after they're installed oil will coat the tubes to keep them from rusting. Will also probably spray some ospho inside to kill the rust. Any other suggestions?

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Ospho is good stuff, also etches the surface for paint. Stephanie told me the same thing, but I may prime and paint the interior since I have an oil catch can that may prevent oil from coating the pipe.

precoat the inside very lightly with oil

run an oil mister to the charge pipes that measures the amount of rust inside the pipes by means of an electrical current lazzer, i mean sv650

Thanks for the input. Sounds like rust won't be a problem long term. I may try running a primer filled sponge down the tube after the ospho. Not sure about the oil mister recommendation.

i thought this through myself when i noticed my pipes not on the car developed a little surface rust. I thought about painting/priming the inside, even poweder coating. but i had bad visions in my head of flakes coming off and flying into my motor.

plumb the breather into the intake and ruin your rings, you'll get a nice coating of oil :bigtu:

Powdercoat. :)

I don't see how you;ll coat the inside of the pipes. clean um and throw them in, your breather line will deposit a fine mist of oil throught the entire piping, they won't rust from the inside.

Steel pipes? It's 2007

They are chosen to shed heat before the air charge even reaches the intercooler. Silicone pipes insulate the air charge before the intercooler, BEGi saw a 20*F drop in temps between the turbo and IC with the use of thier MS pipes.

Brain, I took his comment to mean something closer to "use aluminum intercooler pipes.

yeah that ^

or you can do that. But really, I've never one bit been worried about rust.

Corky told me mild steel sheds heat better than stainless and almost as well as aluminum during his testing.

yes SS retains heat very well.

while it can rust, i don't think it's a concern. The benefit of MS of aluminum is the sturdiness and the ease of welding over using tons of couplers.

while AL should weight less, they use a fairly thin walled MS. The first pipe off the turbo is about half the weight of my current pipe of the same length with the walls being about x2 the thickness.

Al hotside piping
SS cold side piping
and you have no worries

Unless cost is a factor. We did some testing with an aluminum compressor outlet tube. It did not shed as much heat as you would have expected, i think it was about 5-10 degrees F.
Stephanie