Sent my Exhaust Manifold to Buschur for Porting & Jet Coating BUT....
Jul 10, 2010, 12:54 PM
#31
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Coating Color...?
While were on the subject: Does the color if the coating affect how well it works? Like what is the difference between a silver coating and a black coating, besides appearance? Does one color insulate better than another?
Jul 10, 2010, 01:37 PM
#33
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What I meant was does the color of the coating have any affect on the ability to hold heat, or reflect heat. Does a black coating hold heat better than a silver color? Same question for reflecting heat. Some manufacturers offer black coatings, some offer silver coatings. Is there a difference in heat retention or refection because of the color? I know that if we were comparing radiated heat (energy), like sunlight, that a black coating would hold absorb and hold more heat than a silver coating, but what about transmitted heat like an exhaust manifold. Does the color of the coating have an affect when the heat energy comes from within?
Jul 10, 2010, 02:04 PM
#34
What I meant was does the color of the coating have any affect on the ability to hold heat, or reflect heat. Does a black coating hold heat better than a silver color? Same question for reflecting heat. Some manufacturers offer black coatings, some offer silver coatings. Is there a difference in heat retention or refection because of the color? I know that if we were comparing radiated heat (energy), like sunlight, that a black coating would hold absorb and hold more heat than a silver coating, but what about transmitted heat like an exhaust manifold. Does the color of the coating have an affect when the heat energy comes from within?
But what I saying above is some companies use color to represent different temp withstanding. ie. Company's silver coating only withstands 1300*F, but that same company's black coating can withstand 2000*F
Jul 10, 2010, 10:59 PM
#35
I'm just saying.... your manifold is going to get glowing hot and whatever is touching that manifold is going to get to same temp. The coating is not going to reflect that kind of heat down stream.
I have read that coatings help protect the part, they sometimes reduce exhaust turbulence by filling in and smoothing out rough exhaust components, and they do reduce heat at cruise and idle thus helping to slow heat soak when in low speed, partial throttle, or dead stop situations.
The non vendor testing I've seen shows that it doesn't do much when the exhaust is being punished at 1500*. Now "not much" is not "none" and to some those pretty looks might be worth the hundred bucks. But if in a hurry to reassemble a car I don't think I would lose any sleep over not coating the part as the factory heat shield does an excellent job of preventing heat from radiating in the engine bay. It also hides that pretty little thing tucked away behind it.
This is the last I'll say about it as its not that big of an expense or gain. But... I would invest more heavily in porting and improving flow.
I have read that coatings help protect the part, they sometimes reduce exhaust turbulence by filling in and smoothing out rough exhaust components, and they do reduce heat at cruise and idle thus helping to slow heat soak when in low speed, partial throttle, or dead stop situations.
The non vendor testing I've seen shows that it doesn't do much when the exhaust is being punished at 1500*. Now "not much" is not "none" and to some those pretty looks might be worth the hundred bucks. But if in a hurry to reassemble a car I don't think I would lose any sleep over not coating the part as the factory heat shield does an excellent job of preventing heat from radiating in the engine bay. It also hides that pretty little thing tucked away behind it.
This is the last I'll say about it as its not that big of an expense or gain. But... I would invest more heavily in porting and improving flow.
Jul 10, 2010, 11:16 PM
#36
Have you ever had a ceramic coated parts on your car?
If the ceramic is done properly, it wont "chip off in a year".
Also, most quality ceramic coatings work, and work well. You can test them yourself just by touching the item after the engine has be running. The ceramic coated item will always feel cooler to the touch then the non ceramic counter part.
I also still keep all heat shields installed when using ceramic coated parts. Ceramic coating is not a replacement for heat shields, its added protection.
And ceramic coating keep the heat in the manifold or DP, which it turns keeps exhaust gas velocities high.
You are kinda right though. There are companies that do ceramic coating, but use poor methods/poor quality coating, that does end up flaking off or not working as advertised. Just like with any part or service, you just got to research it and go with someone respected in the ceramic coating biz.
(DISCLAIMER - Dont go run out and touch your hot manifold, etc. Use cation if trying to test ceramic coating with your hand/skin. I take no responsibility if you hurt/burn yourself. Do at your own risk.)
If the ceramic is done properly, it wont "chip off in a year".
Also, most quality ceramic coatings work, and work well. You can test them yourself just by touching the item after the engine has be running. The ceramic coated item will always feel cooler to the touch then the non ceramic counter part.
I also still keep all heat shields installed when using ceramic coated parts. Ceramic coating is not a replacement for heat shields, its added protection.
And ceramic coating keep the heat in the manifold or DP, which it turns keeps exhaust gas velocities high.
You are kinda right though. There are companies that do ceramic coating, but use poor methods/poor quality coating, that does end up flaking off or not working as advertised. Just like with any part or service, you just got to research it and go with someone respected in the ceramic coating biz.
(DISCLAIMER - Dont go run out and touch your hot manifold, etc. Use cation if trying to test ceramic coating with your hand/skin. I take no responsibility if you hurt/burn yourself. Do at your own risk.)
my swain coated downpipe was surprisingly cool to the touch only a couple of minutes after shut down...i can actually keep my hand on it
Jul 10, 2010, 11:28 PM
#37
My 2 cents...... I asked the same question about color affecting the ability for a thermal coating to do its job to a local reputable powder coating business owner. The answer was no. It's the material used. Color reflects light. When light is what is creating the heat then yes it would matter. Radiant heat is different and the material that insulates is what matters. I had my exhaust phenolic powder coated by the same business in a dark grey of all things and I can touch it with my hand immediately after getting out of my car. Hot but doesn't burn me.
Jul 10, 2010, 11:51 PM
#38
My 2 cents...... I asked the same question about color affecting the ability for a thermal coating to do its job to a local reputable powder coating business owner. The answer was no. It's the material used. Color reflects light. When light is what is creating the heat then yes it would matter. Radiant heat is different and the material that insulates is what matters. I had my exhaust phenolic powder coated by the same business in a dark grey of all things and I can touch it with my hand immediately after getting out of my car. Hot but doesn't burn me.
Jul 11, 2010, 10:28 AM
#39
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I would love to see a video of you running the car a bit then pressing your finger on the exhaust manifold. That would easily sell me on coatings or send you to the emergency ward!
Jul 13, 2010, 07:34 PM
#42
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https://www.evolutionm.net/forums/sa...-bov-more.html
I have a stock manifold if you'd like to save the downtime... no problem sending it to the porting/polishing/ceramic coating shop of your choice.
I have a stock manifold if you'd like to save the downtime... no problem sending it to the porting/polishing/ceramic coating shop of your choice.
Jul 23, 2010, 11:48 AM
#43
Tirado Custom Coatings
RockmanX, thanks for the recommendations and thanks to everyone that made suggestions. There were so many great options to consider!
One of the first few calls I made was to Carlos at Tirado Custom Coatings...
Carlos was great to do business with, his pricing was very competitive, and he promised he could turn-around the job, in 2-3 days. I agreed to have his shop do the work...in addition:
1) He suggested to ship the EM direct to him from Buschur to speed things up!
2) He provided me with very timely updates! Communication was top notch.
3) He started working on my EM same day it arrived!
4) He worked very late to get the job done quickly (I got an email update that it was finished and ready to ship at almost 9pm at night)!
5) He sent a follow-up email the day it arrived to ensure it was undamaged and that I was happy!
Cool guy and Straight-up some of the best service I've received in a very long time.
I would highly recommend TCC!
Here are some pics of my EM:
Jul 23, 2010, 09:21 PM
#45
UPDATE!!! Wanted to report back my experience:
RockmanX, thanks for the recommendations and thanks to everyone that made suggestions. There were so many great options to consider!
One of the first few calls I made was to Carlos at Tirado Custom Coatings...
Carlos was great to do business with, his pricing was very competitive, and he promised he could turn-around the job, in 2-3 days. I agreed to have his shop do the work...in addition:
1) He suggested to ship the EM direct to him from Buschur to speed things up!
2) He provided me with very timely updates! Communication was top notch.
3) He started working on my EM same day it arrived!
4) He worked very late to get the job done quickly (I got an email update that it was finished and ready to ship at almost 9pm at night)!
5) He sent a follow-up email the day it arrived to ensure it was undamaged and that I was happy!
Cool guy and Straight-up some of the best service I've received in a very long time.
I would highly recommend TCC!
Here are some pics of my EM:
RockmanX, thanks for the recommendations and thanks to everyone that made suggestions. There were so many great options to consider!
One of the first few calls I made was to Carlos at Tirado Custom Coatings...
Carlos was great to do business with, his pricing was very competitive, and he promised he could turn-around the job, in 2-3 days. I agreed to have his shop do the work...in addition:
1) He suggested to ship the EM direct to him from Buschur to speed things up!
2) He provided me with very timely updates! Communication was top notch.
3) He started working on my EM same day it arrived!
4) He worked very late to get the job done quickly (I got an email update that it was finished and ready to ship at almost 9pm at night)!
5) He sent a follow-up email the day it arrived to ensure it was undamaged and that I was happy!
Cool guy and Straight-up some of the best service I've received in a very long time.
I would highly recommend TCC!
Here are some pics of my EM:
I hear many great things about Carlos and Tirado Custom Coatings