To coat or not to coat (my downpipe)
Feb 1, 2009, 10:28 AM
#1
Evolving Member
Thread Starter
iTrader: (1)
Join Date: Jun 2007
Location: Inside the Sarlacc Pit
Posts: 203
Likes: 0
Received 0 Likes
on
0 Posts
To coat or not to coat (my downpipe)
So I got my downpipe for Christmas (DC Sports super long dp that replaces the cat section as well to a test pipe). I haven't installed it yet because I thought it would be pointless to do so during winter here in the Midwest. I'm going to install it this coming spring. I have a friend that works at a shop that does powdercoating. He's been trying to get me to bring the downpipe in to get coated. I posted on a local thread and some people think it's a waste of money.
What does EVOm think? I thought I could reduce engine bay temps. Since my friend works there I would be able to get a discount. Thoughts?
What does EVOm think? I thought I could reduce engine bay temps. Since my friend works there I would be able to get a discount. Thoughts?
Feb 1, 2009, 10:45 AM
#4
Evolved Member
iTrader: (6)
Join Date: Sep 2003
Location: Knoxville Tennessee
Posts: 1,275
Likes: 0
Received 0 Likes
on
0 Posts
the only things worth coating in the exhaust system is the manifold and hotside of the turbo. even then I wouldnt powdercoat them, I'd get them jet hot coated
Feb 1, 2009, 11:25 AM
#7
My downpipe is coated by Performance Coatings in Auburn, WA ($60) They did inside and outside the downpipe. I've touched it after going for a drive many times and it never very hot. Hard WOT drives is different though. I'd imagine, being right next to the oilpan, it wouldn't heat the pan up as much as a non-coated downpipe would.
Trending Topics
Feb 1, 2009, 11:30 AM
#8
Evolving Member
iTrader: (22)
Join Date: Jul 2008
Location: East of things.
Posts: 250
Likes: 0
Received 0 Likes
on
0 Posts
I have the same DP, uncoated, no issues. As you put it in make sure it isn't touching the transfer case housing. If it does you can search my posts, i found a simple fix.
Feb 1, 2009, 12:33 PM
#9
Account Disabled
Join Date: Feb 2009
Location: PDX
Posts: 0
Likes: 0
Received 0 Likes
on
0 Posts
So I got my downpipe for Christmas (DC Sports super long dp that replaces the cat section as well to a test pipe). I haven't installed it yet because I thought it would be pointless to do so during winter here in the Midwest. I'm going to install it this coming spring. I have a friend that works at a shop that does powdercoating. He's been trying to get me to bring the downpipe in to get coated. I posted on a local thread and some people think it's a waste of money.
What does EVOm think? I thought I could reduce engine bay temps. Since my friend works there I would be able to get a discount. Thoughts?
What does EVOm think? I thought I could reduce engine bay temps. Since my friend works there I would be able to get a discount. Thoughts?
Why do I need Ceramic Thermal Barrier Coatings on my exhaust system?
Ceramic Thermal coatings keep your manifolds, headers, exhaust pipes and mufflers from corroding or rusting. Coatings also retain heat within the exhaust system which give you a much cooler underhood temperature. A cooler intake charge means more horsepower. By retaining heat within the system, you create a scavenging effect which gives you more power.
Secondly, you may ask...
Are Ceramic Thermal Barriers Coatings the same as powder coatings?
The only similarity is that they are both baked-on finishes. Powder coatings are baked at 425 degrees to melt the powder to a smooth finish. You must never get it that hot again, or it will burn off. Powder coating is basically very tough paint that is available in almost any color. Ceramic thermal barrier coatings were developed by NASA and the aerospace industry thirty years ago, for thermal insulation on rocket and jet engines. The coatings are applied in liquid form, cured, then baked at a high temperature. Ceramic thermal barrier coatings are formulated to retain heat and withstand much higher temperatures.
The only similarity is that they are both baked-on finishes. Powder coatings are baked at 425 degrees to melt the powder to a smooth finish. You must never get it that hot again, or it will burn off. Powder coating is basically very tough paint that is available in almost any color. Ceramic thermal barrier coatings were developed by NASA and the aerospace industry thirty years ago, for thermal insulation on rocket and jet engines. The coatings are applied in liquid form, cured, then baked at a high temperature. Ceramic thermal barrier coatings are formulated to retain heat and withstand much higher temperatures.
...
Feb 5, 2009, 07:44 AM
#14
here maybe this will help
https://www.evolutionm.net/forums/ev...ipe-not-3.html
https://www.evolutionm.net/forums/ev...ipe-not-3.html