Scott Posted February 15, 2011 Share Posted February 15, 2011 1064 degrees C What is the max EGT that is seen as safe when REALLY pushing these cars? I thought I saw 1000C mentioned somewhere? I know I'll hit 900-1000F just cruising on the motorway. If that is the case I could see the plating dripping off lol. Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted February 15, 2011 Share Posted February 15, 2011 well gold plating is the best for heat reduction, if its good enough for some dragsters and turbo housings then i believe its still a very good option Quote Link to comment Share on other sites More sharing options...
Scott Posted February 15, 2011 Share Posted February 15, 2011 well gold plating is the best for heat reduction, if its good enough for some dragsters and turbo housings then i believe its still a very good option It will be fine on some parts of the engine, I can't see it being used on an exhaust manifold though, it would come off. Have you seen those things glow bright cherry red lol. Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted February 15, 2011 Share Posted February 15, 2011 Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted February 15, 2011 Share Posted February 15, 2011 It will be fine on some parts of the engine, I can't see it being used on an exhaust manifold though, it would come off. Have you seen those things glow bright cherry red lol. how will it come off? its fused to the surface of the metal, would never flake. Quote Link to comment Share on other sites More sharing options...
Scott Posted February 15, 2011 Share Posted February 15, 2011 http://www.mkivsupra.net/vbb/attachment.php?attachmentid=127014&stc=1&d=1297771288 All cool parts that I see, notice the hotside of the turbo isn't gold Can't see if the exhaust manifold has been coated, if it is PROPERLY used then I would think not. Quote Link to comment Share on other sites More sharing options...
Scott Posted February 15, 2011 Share Posted February 15, 2011 http://www.finishing.com/136/36.shtml According to that 600 Degrees F is the max, that would cook off on my engine nevermind someones on the track. Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted February 15, 2011 Share Posted February 15, 2011 http://www.finishing.com/136/36.shtml According to that 600 Degrees F is the max, that would cook off on my engine nevermind someones on the track. What is the maximum temperature that gold plating over nickel plating on a copper base alloy can withstand? Will it withstand 600 deg F for 2 hours? thats why! Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted February 15, 2011 Share Posted February 15, 2011 Quote Link to comment Share on other sites More sharing options...
Chris Wilson Posted February 15, 2011 Share Posted February 15, 2011 Proper Zircotec coatings are fabulous, but only worth it if you either want a nice to look at finish (DO NOT choose white, it shows every finger mark when the grease from them is baked, choose black), or you want to substantially reduce under bonnet heat. I doubt any performance gains from retaining heat in the header pies will be noticeable, I have never felt a difference. Peter at Camcoat is a friend of mine, but the reason their coating is cheaper is that it's not the same product at all. It works, but is not as good as Zircotec. Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted February 15, 2011 Share Posted February 15, 2011 full race exhaust systems Quote Link to comment Share on other sites More sharing options...
Scott Posted February 15, 2011 Share Posted February 15, 2011 What is the maximum temperature that gold plating over nickel plating on a copper base alloy can withstand? Will it withstand 600 deg F for 2 hours? thats why! Find me a temp for it then. Everything I am reading says that gold plating is for low temp applications. Quote Link to comment Share on other sites More sharing options...
Scott Posted February 15, 2011 Share Posted February 15, 2011 http://www.mkivsupra.net/vbb/attachment.php?attachmentid=127015&stc=1&d=1297772034 full race exhaust systems Again, you are showing low temp applications. You low on post count or something Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted February 15, 2011 Share Posted February 15, 2011 Find me a temp for it then. Everything I am reading says that gold plating is for low temp applications. ill try and find the temperatures somewhere. Quote Link to comment Share on other sites More sharing options...
johnny g Posted February 15, 2011 Share Posted February 15, 2011 Isn't gold more of a heat reflector than a heat insulator/thermal barrier? Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted February 15, 2011 Share Posted February 15, 2011 the highest use i can find is 1086 degrees c which is very high but i think dull off on the hotside, but still bloody good. i can platinum plate too lol Quote Link to comment Share on other sites More sharing options...
Scott Posted February 15, 2011 Share Posted February 15, 2011 the highest use i can find is 1086 degrees c which is very high but i think dull off, but still bloody good. i can platinum plate too lol That is the temperature resistance of gold. Gold plating is a completely different bucket of spanners. I don't know any gold plating firm that won't first pre-coat the material with another material. For high temperature resistance you are generally after platinum (I think). Are you doing the gold plating yourself? What is your process? Or are you sub conning it? (Reason I ask is you said you can platinum plate). Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 15, 2011 Share Posted February 15, 2011 Isn't gold more of a heat reflector than a heat insulator/thermal barrier? Pretty much what thought Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted February 15, 2011 Share Posted February 15, 2011 no you have to pre coat the surface your doing or atleast activate it... i am plating myself and also using 2 other firms which do some larger items for us. i can plate platinum but its not cheap and would need to be ordered special. i never realised the running temperature of the manifold but should have guessed it would be more than 1100 as they do glow cherry red ha ha. Quote Link to comment Share on other sites More sharing options...
ManwithSupra Posted February 15, 2011 Share Posted February 15, 2011 Isn't gold more of a heat reflector than a heat insulator/thermal barrier? Pretty much what thought Mclaren f1 boot lid Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted February 15, 2011 Share Posted February 15, 2011 Isn't gold more of a heat reflector than a heat insulator/thermal barrier? no you are correct thats ideally what its best at, but as discussed heat coating it very exspensive so why not plate other items to get rid of heat... just not manifolds Quote Link to comment Share on other sites More sharing options...
Dnk Posted February 15, 2011 Share Posted February 15, 2011 The colour of a piece of steel may be used as a guide to it's temperature. These are particulalrly useful when hardening or tempering steel. Colour °C Pale yellow 221 Straw 230 Golden yellow 243 Brown 254 Brown to purple 266 Purple 277 Bright blue 288 Blue 293 Dark blue 316 Just visible red 500 to 600 Dull cherry red 700 to 750 Cherry red 750 to 825 Bright cherry red 825 to 875 Brightest red 900 to 950 Orange 950 to 1000 Light orange 1000 to 1050 Lemon 1100 to 1200 White 1200 to 1300 Quote Link to comment Share on other sites More sharing options...
Rob_Mitchell Posted February 15, 2011 Share Posted February 15, 2011 The colour of a piece of steel may be used as a guide to it's temperature. These are particulalrly useful when hardening or tempering steel. Colour °C Pale yellow 221 Straw 230 Golden yellow 243 Brown 254 Brown to purple 266 Purple 277 Bright blue 288 Blue 293 Dark blue 316 Just visible red 500 to 600 Dull cherry red 700 to 750 Cherry red 750 to 825 Bright cherry red 825 to 875 Brightest red 900 to 950 Orange 950 to 1000 Light orange 1000 to 1050 Lemon 1100 to 1200 White 1200 to 1300 nice info dunk Quote Link to comment Share on other sites More sharing options...
Lee P Posted February 15, 2011 Share Posted February 15, 2011 no you are correct thats ideally what its best at, but as discussed heat coating it very exspensive so why not plate other items to get rid of heat... just not manifolds I can see where your coming from Rob but the idea of coating the manifold is to keep the heat in. This helps keep under bonnet temps down but more importantly keeps the gases in the manifold hot which makes them move quicker aiding in spool. Quote Link to comment Share on other sites More sharing options...
Brazil Posted February 15, 2011 Share Posted February 15, 2011 That is the temperature resistance of gold. Gold plating is a completely different bucket of spanners. I don't know any gold plating firm that won't first pre-coat the material with another material. For high temperature resistance you are generally after platinum (I think). Are you doing the gold plating yourself? What is your process? Or are you sub conning it? (Reason I ask is you said you can platinum plate). Just face it, your wrong and rob is right...! Quote Link to comment Share on other sites More sharing options...
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