Rust inside intercooler pipes - Miata Turbo Forum - Boost cars, acquire cats.

Welcome to Miataturbo.net   Members
 


DIY Turbo Discussion greddy on a 1.8? homebrew kit?

Reply
 
 
 
LinkBack Thread Tools
Old 11-24-2007, 06:39 PM   #1
Junior Member
Thread Starter
iTrader: (9)
 
Join Date: Jan 2007
Posts: 455
Total Cats: 3
Default 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?

Name:  Picture020.jpg
Views: 23
Size:  55.5 KB
sv650_ck is offline   Reply With Quote
Old 11-24-2007, 06:44 PM   #2
Senior Member
iTrader: (8)
 
Join Date: Mar 2006
Location: Floriduh
Posts: 882
Total Cats: 0
Default

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.
soflarick is offline   Reply With Quote
Old 11-24-2007, 06:53 PM   #3
Elite Member
iTrader: (3)
 
Mach929's Avatar
 
Join Date: Oct 2004
Location: lansdale PA
Posts: 2,500
Total Cats: 0
Default

precoat the inside very lightly with oil
Mach929 is offline   Reply With Quote
Old 11-24-2007, 07:48 PM   #4
Elite Member
iTrader: (2)
 
Join Date: Jan 2007
Location: Lexington, SC
Posts: 2,084
Total Cats: 0
Default

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
mazda/nissan is offline   Reply With Quote
Old 11-24-2007, 08:59 PM   #5
Junior Member
Thread Starter
iTrader: (9)
 
Join Date: Jan 2007
Posts: 455
Total Cats: 3
Default

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.
sv650_ck is offline   Reply With Quote
Old 11-24-2007, 09:24 PM   #6
Elite Member
iTrader: (3)
 
Mach929's Avatar
 
Join Date: Oct 2004
Location: lansdale PA
Posts: 2,500
Total Cats: 0
Default

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.
Mach929 is offline   Reply With Quote
Old 11-24-2007, 09:29 PM   #7
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,792
Default

plumb the breather into the intake and ruin your rings, you'll get a nice coating of oil
Braineack is offline   Reply With Quote
Old 11-24-2007, 09:49 PM   #8
Senior Member
 
Join Date: May 2006
Posts: 884
Total Cats: 0
Default

Powdercoat.
firedog25 is offline   Reply With Quote
Old 11-24-2007, 09:51 PM   #9
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,792
Default

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.
Braineack is offline   Reply With Quote
Old 11-25-2007, 02:31 PM   #10
Senior Member
iTrader: (1)
 
Join Date: Oct 2006
Location: Burbank, CA
Posts: 536
Total Cats: 0
Default

Steel pipes? It's 2007
PaKMaN is offline   Reply With Quote
Old 11-25-2007, 02:47 PM   #11
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,792
Default

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.
Braineack is offline   Reply With Quote
Old 11-25-2007, 03:08 PM   #12
Senior Member
iTrader: (13)
 
Join Date: Sep 2006
Location: San Diego
Posts: 606
Total Cats: 0
Default

Quote:
Originally Posted by Braineack View Post
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.
jasonrobo02 is offline   Reply With Quote
Old 11-25-2007, 03:39 PM   #13
Junior Member
iTrader: (3)
 
Join Date: Aug 2007
Location: Panama City, FL.
Posts: 336
Total Cats: 0
Default

yeah that ^
01TurboMiata is offline   Reply With Quote
Old 11-25-2007, 04:06 PM   #14
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,792
Default

or you can do that. But really, I've never one bit been worried about rust.
Braineack is offline   Reply With Quote
Old 11-25-2007, 04:11 PM   #15
Senior Member
iTrader: (8)
 
Join Date: Mar 2006
Location: Floriduh
Posts: 882
Total Cats: 0
Default

Corky told me mild steel sheds heat better than stainless and almost as well as aluminum during his testing.
soflarick is offline   Reply With Quote
Old 11-25-2007, 04:22 PM   #16
Boost Czar
iTrader: (61)
 
Braineack's Avatar
 
Join Date: May 2005
Location: Chantilly, VA
Posts: 72,900
Total Cats: 1,792
Default

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.
Braineack is offline   Reply With Quote
Old 11-25-2007, 10:16 PM   #17
Elite Member
iTrader: (39)
 
Zabac's Avatar
 
Join Date: Sep 2007
Location: High Point NC
Posts: 4,854
Total Cats: 8
Default

Al hotside piping
SS cold side piping
and you have no worries
Zabac is offline   Reply With Quote
Old 11-27-2007, 05:49 PM   #18
Former Vendor
 
Join Date: Jun 2006
Location: Bell Tuning & Performance
Posts: 1,338
Total Cats: -78
Default

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
Stephanie Turner is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Project Gemini - Turbo Civic on the Cheap Full_Tilt_Boogie Build Threads 59 12-15-2017 09:00 PM
Back to Stock Part Out!! Turbo Parts, MS2 Enhanced 01-05, Suspension, and MOAR! StratoBlue1109 Miata parts for sale/trade 16 10-02-2015 10:39 AM
Going back to stock. Need some 1.6 parts. Trent WTB 2 10-01-2015 01:15 PM
Time to start learning and play with tuning The Gleas MEGAsquirt 3 10-01-2015 10:30 AM


Thread Tools

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 05:24 AM.