Ceramic Exhaust Coatings
Discussion
The temperature in my engine bay is marginal at a standstill and the exhaust is the major problem, has anyone else got this problem ?
I have looked into ceramic exhaust coating from Camcoats and other from a spin off company from the Atomic Research Est, if anyone else is interested perhaps a group buy and discount session could be arranged. Estimated 30-50% reduction in heat
I was thinking DEC/JAN timings
I have looked into ceramic exhaust coating from Camcoats and other from a spin off company from the Atomic Research Est, if anyone else is interested perhaps a group buy and discount session could be arranged. Estimated 30-50% reduction in heat
I was thinking DEC/JAN timings
quote:
Stig
I have some custom equal length pipes from Primary Designs in Thame ( F1 exhaust makers ) in stainless steel, the silencers are repackable aswell. A work of art!!
Hi, that exhausts sound nice, what are the primary tubes diameter and lenght / and what horse power range are they best at. Would be nice to have a Picture or to If you would not mind.
Cheers CLIVE
Stig & all
Check out http://community.webshots.com/user/gareth215 for shots of exhaust.
Primary pipe length was 32" as requested by American Speed. Primary pipe width 2"
Cost £3K
Sound priceless !!
Check out http://community.webshots.com/user/gareth215 for shots of exhaust.
Primary pipe length was 32" as requested by American Speed. Primary pipe width 2"
Cost £3K
Sound priceless !!
I'm worried that the stuff would start to flake off after 18 months...then rust 10 times worse!!
Provided it lasts I'm definitely interested in going the coated mild steel route though.
Apart from the increased temp specs what is the advantage of the black satin finish on the race spec? Would have thought that with a black finish it would just radiate a bunch of heat into the engine bay...
Provided it lasts I'm definitely interested in going the coated mild steel route though.
Apart from the increased temp specs what is the advantage of the black satin finish on the race spec? Would have thought that with a black finish it would just radiate a bunch of heat into the engine bay...
Hi,
I'm not an expert on thermodynamics or heat transfer, but I've heard the answer to your concerns about the black color somewhere. There are a lot of companies here in the states that will coat exhaust. Jet Hot Coat is one of the most popular www.jet-hot.com/faq.html . Also check out www.performancecoatings.com/headercoatings.html
A lot of these companies have gaurantees of some sort. I think the really critical factor is preparation. At a minimum the exhaust will need to be sand blasted on the outside. This will roughen the surface, which allows the coating to stick, and clean off any rust. However, the pros will also prep the inside of the exhaust as well. Its becoming quite popular here in the states. There are also some products that you can apply yourself, if you have a spray gun, and have the exhaust sand blasted. Assembly is also critical, b/c the coating can be scratched.
Cheers!
-Mack
I'm not an expert on thermodynamics or heat transfer, but I've heard the answer to your concerns about the black color somewhere. There are a lot of companies here in the states that will coat exhaust. Jet Hot Coat is one of the most popular www.jet-hot.com/faq.html . Also check out www.performancecoatings.com/headercoatings.html
A lot of these companies have gaurantees of some sort. I think the really critical factor is preparation. At a minimum the exhaust will need to be sand blasted on the outside. This will roughen the surface, which allows the coating to stick, and clean off any rust. However, the pros will also prep the inside of the exhaust as well. Its becoming quite popular here in the states. There are also some products that you can apply yourself, if you have a spray gun, and have the exhaust sand blasted. Assembly is also critical, b/c the coating can be scratched.
Cheers!
-Mack
quote:
I'm worried that the stuff would start to flake off after 18 months...then rust 10 times worse!!
Provided it lasts I'm definitely interested in going the coated mild steel route though.
Apart from the increased temp specs what is the advantage of the black satin finish on the race spec? Would have thought that with a black finish it would just radiate a bunch of heat into the engine bay...
Guys
The exhausts are chemically cleaned and strayed internally with black satin, then Cermakrome for a shiny alluminium type finish.
Both these ceramics have an excellent rust prevention
www.camcoat.u-net.com/Coatings.htm
Shall we try for a bulk discount ??
The exhausts are chemically cleaned and strayed internally with black satin, then Cermakrome for a shiny alluminium type finish.
Both these ceramics have an excellent rust prevention
www.camcoat.u-net.com/Coatings.htm
Shall we try for a bulk discount ??
From www.teegardenmotorsports.com/techfaq.htm
Assuming there's no problem with Ted & Co providing me with the raw materials...count me in!
quote:
WHY IS BLACK SATIN A BETTER THERMAL BARRIER THAN CERMAKROME, SINCE BLACK SHOULD EMIT MORE HEAT THAN A SILVER COATING?
While it is true that black normally is a better color to emit heat, in this instance the color is not as important as the fillers in the coating. These fillers are very effective insulators, sufficiently so that the black color does not affect the function. Interestingly the silver color of CERMAKROME or any other Metallic Ceramic Coating comes from the aluminum filler. Aluminum is a very good conductor of heat. Yet the effectiveness of these coatings are not degraded.
Assuming there's no problem with Ted & Co providing me with the raw materials...count me in!
Found this comment on Internet: Normal caution in accepting this as gospel.
Do you recommend coating stainless to reduce under hood temperatures?
We built a custom set of headers for a T-70 Lola that was being converted into a “street” car. Due to the tight confines of the engine bay, the owner wanted to try coating the headers to reduce the under hood temps. The owner was fanatical about measuring and recording all engine operating data-he had thermocouples on everything! After coating, he did not see one degree change in the under hood temps.
Another issue is that all coatings will stain if they get oil spilled on them. Bare stainless is nice because maintenance is easy-a scotch bright pad and WD40 on mill finish, blue away and Simi chrome on polished.
Phil
Do you recommend coating stainless to reduce under hood temperatures?
We built a custom set of headers for a T-70 Lola that was being converted into a “street” car. Due to the tight confines of the engine bay, the owner wanted to try coating the headers to reduce the under hood temps. The owner was fanatical about measuring and recording all engine operating data-he had thermocouples on everything! After coating, he did not see one degree change in the under hood temps.
Another issue is that all coatings will stain if they get oil spilled on them. Bare stainless is nice because maintenance is easy-a scotch bright pad and WD40 on mill finish, blue away and Simi chrome on polished.
Phil
Hi,
I’m not an expert in thermodynamics or heat transfer, but I’ve come across some insights about black coatings for exhaust systems. Companies like Jet Hot Coat hot,jet are quite popular in the U.S. and offer guaranteed services also check this.
One key factor in achieving a good coating is preparation. At a minimum, the exhaust should be sandblasted to roughen the surface for better adhesion and to remove any rust. Professionals often also prep the inside of the exhaust. This practice is becoming increasingly popular in the States.
There are also DIY products available if you have a spray gun and can sandblast the exhaust yourself. Just be cautious during assembly, as the coating can be easily scratched.
I’m not an expert in thermodynamics or heat transfer, but I’ve come across some insights about black coatings for exhaust systems. Companies like Jet Hot Coat hot,jet are quite popular in the U.S. and offer guaranteed services also check this.
One key factor in achieving a good coating is preparation. At a minimum, the exhaust should be sandblasted to roughen the surface for better adhesion and to remove any rust. Professionals often also prep the inside of the exhaust. This practice is becoming increasingly popular in the States.
There are also DIY products available if you have a spray gun and can sandblast the exhaust yourself. Just be cautious during assembly, as the coating can be easily scratched.
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