All about Heat Wrap, Ceramic Coating, and Reflective Heat Tape
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- เผยแพร่เมื่อ 15 ก.ย. 2024
- Flatirons Tuning Tech Tip - All about Heat Wrap, Ceramic Coating, and Reflective Heat Tape
If you are building your car to make power, you are also going to be making heat. And how you control and contain that heat becomes more and more important the further you go. This is something that we have run into on our race cars, as well as our 2003 WRX project car, so we thought we would go through some of the things that we have done to keep temperatures of various components under control.
Thank you for watching, and thank you for your support!
If you are interested in links to the items discussed on our web-site, here are links to them:
DEI Header Wrap:
www.flatironst...
DEI Reflect-a-cool Silver Tape:
www.flatironst...
DEI Reflect-a-Gold Heat Tape:
www.flatironst...
Never thought about the heat from my exhaust next to the oil pan. Good points in this video.
Very glad that the video was helpful and thanks for watching.
Stay Tuned!
DEI is an awesome product. i use them in all my cars, funny but i know how addictive can be the heat protection thing. once you start loving your car, the more you want to protect the parts and lower the temperatures, i end up wrapping my whole engine bay of my evo 10.
Thanks for the comment, and thanks for watching!
send me pics
Bro you look like the principle from eastbound and down nice video
Tremendous information from a great source
Thanks very much! Stay Tuned!
Thank you so much for this helpful, informative and fun episode.
Glad that the video was helpful. Thanks for watching and Stay Tuned!
Awesome video. Thanks heaps for sharing your knowledge 🙏🏼😇💯
No problem at all! Thanks for watching and Stay Tuned!
Excellent video, right on, very informative!! Just the best!!
Thanks and Stay Tuned!
I put DEI wrap on my intake tube & has worked well
Great video! I wish you would have shown the wrapping and given any tips for the wrap process itself.
Thanks! Honestly, I wouldn't say I am any where near an expert yet. Only then will I pass on some tips. Biggest one right now is wear gloves :-)
thanks for the vid. just about to re-do my wrap and was considering having the headers ceramic coated while they were out. sounds like it's worthwhile even after considering the cons.
Thanks for watching and glad we could help. Stay Tuned!
Very helpful. Thanks.
Thanks for watching and Stay Tuned!
Such good info! Love these videos !
Ceramic coatings inside headers are effective, outside they're just paint. Black coatings on the outside will increase their emissivity and help them cook adjacent parts.
@Estebita Latorre yeah, i was thinking to first ceramic coat the header, then wrap it and finally tape it with some golden heat tape..
It's a bit overkill, but there's that, any bit counts!
True ceramic headers and exhaust are more importantly also coated on the inside. Just on the outside will over cook the metal from the inside. The pipe can no longer shed the excess heat efficiently by dissipating into the cooler air outside around the pipes. Yes exhaust gas will get hotter and evacuate quicker but the metal will take a beating. Plus the coating on the inside will still decrease heat in the engine bay.
Nice work man
It looks like you used the titanium DEI product that’s not fiberglass based.
excellent video thank you
No problem and thanks for watching!
Man I use ceramics all over to great success. I haven't gotten around to doing it but I want to grind up some aerogel and mix it into some ceramic paint and test that some. I know so far it's made huge gains in keeping my oil temps down(air oil cooled).
Thanks for the comment, and Stay Tuned!
Damn, why have I never known about this channel? They tips are so interesting to me.. maybe because I own the car above your head and my dream car is the one behind you 😎🤘
Thanks for that Benjamin! Be sure to check out more of the videos, and pass it on!
Thanks for watching!
Good information
Thanks
You need to take care on how you explain heat transfer by conductance and heat transfer by radiation. They are two different process, and each have their own properties.
Thanks Litch. I did my best to be clear, but it certainly can get tricky. Thanks for watching!
Care to share your enlightenment and add some constructive details, @Litch?
Do you recommend ceramic coating a high flow catted downpipe? I'm aiming for OEM + and nothing crazy maybe 500-550 hp on my Supra. Is ceramic coating worth it on downpipes or maybe only for headers?
Thanks for your question. The short answer is no. Many ceramic coaters won't coat catted pipes because it is a bit more difficult. And the benefits to the coating after the turbos is less than the pre-turbo pipes. The main gain from a post turbo pipe getting insulated is heat control/management.
Hope that helps, thanks for watching and Stay Tuned!
ummm ceramic coating is intended to be effective on the inside of tubing. it's on the outside only because of cost to mask it. the point of ceramic coating is to help the heat of expanding gasses move down the tubing, rather than being dissipated through the tubing, therefore causing better scavenging.
well, I've had several header's ceramic coated at a place called fireball coatings in the Toronto area who also do coatings for race cars and they only coat the outside no matter how much you pay them, it really doesn't matter if you coat the inside or outside as the ceramic coating acts as a insulator to keep heat in the exhaust header's rather than let it escape into the engine bay, the greater heat in the manifold increases exhaust velocity which in turn increases exhaust scavenging, essentially exhaust header wrap will accomplish the same effect.
@@kevins5911 putting coating on the inside is also an attempt to make the headers last longer.
And it stops you melting stuff
right on!!!!!
You guys always come in clutch when I'm researching subie stuff!! I'm currently doing an na-t with an ej253 (avls) with a 2018 stock sti header and up pipe. The header kept the shielding it comes with but I had to strip and "re-do" the up pipe for fitment with the head. It's still very close to the head and would like to keep that area as protected as possible from heat. Should I ceramic coat the up pipe and add heat tape to the head or will a wrap be more of a viable way? TIA
Thanks for your question. For the up-pipe, you do want to keep it as insulated as possible to keep the hear away from the head. I'd say that if you are not able to run the stock heat shielding, then wrapping the up-pipe would be the next best option.
Beyond that, you may want to look at DEI's form-a-shield as that has a metal outside to help prevent any possible issues with oil dripping onto it.
Hope that helps and Stay Tuned!
@@FlatironsTuning Thank you!
I really appreciate these tips :) Keep it up!
I have a couple of questions, do you guys also use a turbo blanket? do you see any harmful long term effects on using a turbo blanket? (possible cracking of the hotside housing)
I'm really contemplating on using it on my evo6, 4g63. temperatures here in the Philippines reach 101 deg. F outside. i cant imagine how hot it is in the engine bay.
Hello Andrei. Thanks for your question. We do use a blanket on our race car, and it has had no negative effects. For a street car, you would just have to keep an eye on your coolant and oil for a bit to make sure that you aren't heating them too much. But we have also started to see some people that have shown that there isn't really a significant increase in oil or coolant temps with blankets.
On an Evo, it should really help to keep your engine bay temps down, so it would be worth a try.
Thanks for watching!
So... I know you talked about it, but what is your honest opinion about wrapping a ceramic header? Mine are supposedly rated for 1800 degrees. I have a supercharged V8. I want the least amount of heat, but I also don't want to ruin the headers. Installing these things are a pain in the butt.
Thanks for your question. All I can say is that from what we have seen on our turbo manifold, wrapping the ceramic header was the most effective at keeping heat away from things that were around the header. But it also did take off some of the ceramic coating over time.
If you have the coating, and there aren't any critical pieces that are about 1" - 2" from the header, you are probably okay. But if there are, then you may want to look at some form of additional insulation. DEI has another product that we haven't played much with yet, but it seems promising for some applications. It is called Form-a-shield:
designengineering.com/form-a-shield/
If there are some specific locations that you want extra insulation, this could be a good option, and I think that it would have much less wear when going over a ceramic.
Hope that helps, and thanks for watching!
Does the spray for the wrap make it last longer and less likely to degrade over time? Thanks.
I think you are wrong at 3:47. By putting the thermal barrier on the outside of the pipe, you will be causing the pipe to get hotter, stretch more, and develop more cracks earlier. Header wrap keeps way more heat inside will cause the header to get really hot and often fail. Tons of failures at the welds. The focus should be on putting a thermal barrier inside of the header to keep the heat inside and not letting the header absorb heat.
Is the header heat an issue to worry about with NA subaru engines? From what I understand is that they don't make near as much heat as the turbo engines.
I’m running a stock 2000 c5 corvette, going to bump up the exhaust a little. Looking at the BBK shorty headers they are ceramic coated. Would it really be necessary to wrap it, being I’m not racing, just looking for a nicer tone and just a little boost in power. I’m not going with long tube because of clearance issues, these NJ roads are bad, I don’t need my exhaust getting damaged also if my stater needs replacing again, I would have to remove the header on the passenger side, now I just have to drop the H pipe, well it’s an X pipe now, but u get my point. Besides I would only be able to afford cheap thinner wall ones. The reason I’m mentioning that is because there is always somebody that will say, get the long tubes, when I’m not asking for that opinion. What’s your thoughts? Great video.
Thanks for your question. I'd say go and take a look at the area around where the headers are going to run. If they are close to anything that you don't want to get hot (like plastic, cooling system, etc.) then it may be worth looking at taking some other heat control measures (like the reflective tape.
The other thing to consider is what you are doing with the car. If you are driving it on the street most if not all the time, the chances of the headers getting really hot is much less. If you are tracking the car a bit where the exhaust will be getting up to maximum heat for a reasonable portion of its life, there again it may be worth looking at more heat control measures as you are putting the part on the car to prevent discovering issues.
I hope that helps, and thanks for watching!
What if you used a dry sump oil pan and pump? That would reduce the amount of oil near the headers because the dry sump oil pan is much shallower.
That is certainly true. And there are many other benefits of the dry-sump system as well. But it is not a simple install, and I wouldn't recommend it for a street car.
But it would certainly help to keep oil temps down :-)
Thanks for watching!
Hi mate! Thanks for your informative video! I'm wondering i just bought a Tomei unequal headers for my 04 fozzy xt. You recon i should ceramic coated? They look awesome bare metal, but do they get a lot hot? The oem have a protection shield around them. Thanks in advance
Is it possible to wrap a single header pipe with the gold take then wrap it with the fiber glass wrap on top for more heat reduction? The header on my quad is to close to my leg and gets real hot.... Way to hot...
Thanks for your question. The gold foil is to reflect radiant heat, and it wouldn't hold up on an exhaust pipe. However, I think that if you wrap your header and make sure that you are overlapping 1/2 way with each new wrap that will give you a double layer of insulation which should make a big difference.
Hope that helps, and thanks for watching!
Yep, exactly and it's no fun! What about ceramic coating it, then wrap it and finally tape it?
For anyone reading:
What if I got my 4-2-1 catless header ceramic coated and wrapped in titanium wrap? Does titanium rub away the ceramic coating the way the fiberglass does? I imagine it would be similar. What if I use a high heat coating like VHT flameproof in between the ceramic coated header and the titanium wrap?
Thanks for your question. Yes, we have always used the Titanium wrap and it has rubbed off the ceramic coating over time.
If you want the maximum amount of insulation, I'd recommend looking at the DEI Form-A-Shield:
www.flatironstuning.com/dei-form-a-shield
It is harder to work with, but it will give you the best heat barrier. It also will let any liquids roll off its surface, which can be a helpful feature as well.
Thanks for watching and Stay Tuned!
Internal ceramic coating is best or headers burn up inside creating more heat from external coating
hi, whats the best colour to use on the exhaust headers to get the best performance
Thanks for your question. The ideal color to keep heat from radiating would be white.
Thanks for watching!
What kind of headers are those. I believe I have the same ones picked them up ceramic coated inside and out.
They are Kinugawa headers. Basically the same as most of the common header types out there.
Thanks for watching!
@@FlatironsTuning wow really?! I thought those are tomei el headers for a second there
@@KDD8 Well, it turns out that there are a number of headers that are actually made by the same manufacturer and re-branded. So it isn't entirely surprising that you might think that :-)
Thanks and Stay Tuned!
Would wrapping a ceramic coated turbo manifold be ok?. if it's a daily driver and your not racing around. Just wanting to protect the components around it.
Thanks for your question. Sure, you can certainly do it. Just keep in mind that more than likely the wrap will wear off the ceramic coating to some extent.
Thanks for your question and Stay Tuned!
Did you DIY the ceramic coating, or have it done somewhere else? Was it coated inside and out? What's the temperature rating?
This coating was professionally applied, and it is rated for 2000* F.
Thanks for watching!
Hey man just curious is it 100% necessary to us the ceramic spray on the fiberglass wraps or is it jusy suggested, just curious if i need to coat mine or not.
Thanks for your question. No, it isn't required to seal the heat wrap. If you don't seal it, it can be more likely that it can hold any oil that might come into contact with it, and as it goes through heat cycles over time, it will become more brittle.
Over time, heat wrap can start to come apart and fall off, so the hope is that the silicone spray will help keep the wrap together much longer.
I hope that helps and Stay Tuned!
@@FlatironsTuning Thank you very much this helped alot.
Silicone spray fixes the oil problem with wraps
Thanks for watching and Stay Tuned!
@@FlatironsTuning yeah my bad I felt like it went to long after I commented this you mentioned it 😂
Do you recommend DEI with the high temp silicone on bare metal headers. Does it holdup well?
We have been running the DEI heat wrap for a couple years now. Not a lot of miles, but a lot of very high temp use, and it is still holding up!
If you think that you will have to install and remove the header often, you might want to try something like the DEI form-a-shield instead of the wrap.
www.flatironstuning.com/dei-form-a-shield
Hope that helps, and Stay Tuned!
FlatironsTuning nice!
So did the silicone coating make a difference?
Thanks for your question Mohamed. The biggest difference that I have noticed so far is that it really makes a difference in how any oil that gets on the header is shed off. I have since changed the oil, and it is next to impossible to prevent at least some oil from getting on the headers. This happened, and it could be seen since I used the white coating. I continued with the oil change, and let the pan drain, etc., and by the time I came back to button everything up, all signs of the oil that had got onto the header wrap were gone.
We are putting it on a couple other headers, and we'll see if there is anything else that we notice.
Thanks!
@@FlatironsTuning Hey, how about now 3 years later? I want to wrap my aftermarket up pipe and downpipe and it sounds like coating the wrap is a good idea.
Can you do both? Spray the wrap?
yes its recommended and you get more life out of your wrap
DEI makes a better product to reflect heat on thr oil pan
How would putting vents on your hood effects heat management? Would you be more inclined to use ceramic coat over the wrap?
Thanks for your question. I'd say that would have little to no effect. The heat generated by the headers that you have to combat is radiation (think Infra-red), so just moving more air through the engine bay would not help that unfortunately.
Hope that helps, and thanks for watching!
Do you recommend DEI wrap with ceramic coated headers ?
Thanks for your question. The short answer is no. From our experience, over time, the header wrap will rub off the ceramic coating. So at first, you may have much better heat management, but over time, that improvement will fall off.
Hope that helps, and Stay Tuned!
Header manufactures will void the warranty if they have been heat wrapped.
Thanks for your comment. That is pretty common because of the additional heat load that wrap puts on the metal.
Thanks for watching!
does cc melt in real hot weather
Thanks for your question. Sorry, but not sure what you mean by CC??
FlatironsTuning sorry i meant ceramic coating
Okay, no, it will not melt at all. This is something that has to be professionally applied keep in mind, but is is very durable.
FlatironsTuning just checking cos in some states they have 3 digit temperatures in summer.
@@blackleo_999 Ceramic coating is designed to handle temperatures in the excess of 1000c /1800f
You drastically reduce the life of the Headers.
Exactly why you use something like 321 that's able to sustain higher temperatures without fatigue.
With plenty of insulation, 304 will definitely stay warmer than it's able to reliably handle.
I can grab my header with my bare hands when the car is running... even when the motor is warmed up... big turbo spools at 3800 instead of 4200 rpm... this guy needs to learn more about thermodynamics as it relates to Turbos and Horsepower
Jonathan Scafe what did you put on your header to keep it that cool while warmed up?
^can confirm
@@randabuffer6562 agreed! What did he use?
Good information
Thanks