dhp123166 Posted February 18, 2009 Share Posted February 18, 2009 I searched and did not find anything but I probably was not too thorough. Anyway, 280z NA with jet hot coated headers. Do I really need the stock heat shield??? Quote Link to comment Share on other sites More sharing options...
FlatBlack Posted February 18, 2009 Share Posted February 18, 2009 *I have been told* that Nissan added the webbing on the later 280Z's intake plenums because they were having issues with the heat ruining the injectors. This is second hand information, take it as you will. The heat shield is for extra protection and I would recommend using it so your injectors will lead a long life. If you have an extra set and care more about aesthetics, then take it off. If you look at a 280ZX engine bay they added another one to protect the brake master cylinder which is way further away than the injectors if that gives you an idea. Quote Link to comment Share on other sites More sharing options...
mrandrei Posted February 19, 2009 Share Posted February 19, 2009 Heat wrap is also a good idea. When I was experiencing trouble with the header on my truck melting the starter cable, my mechanic advised me to use firesuit material from a used firefighters reflective uniform. His idea's brilliant, it works incredibly well. Quote Link to comment Share on other sites More sharing options...
srbigbutt Posted February 19, 2009 Share Posted February 19, 2009 I don't have headers now, but have one that I will be installing and I will definately be adding a heat shield. Mine currently doesn't have one and I get Vapor Lock from heat soak if I let it sit for awhile while car is warm and it runs like crap for a couple minutes. Very embarrassing when you go into a store looking all cool and then come out 15 minutes later and your car is backfiring and stumbling real bad. Quote Link to comment Share on other sites More sharing options...
zedman240 Posted February 19, 2009 Share Posted February 19, 2009 One thing I know is heat kills everything! I even moved my battery to behind the passenger seat. Quote Link to comment Share on other sites More sharing options...
MJLamberson Posted February 19, 2009 Share Posted February 19, 2009 If you look at a 280ZX engine bay they added another one to protect the brake master cylinder which is way further away than the injectors if that gives you an idea. My first gen had one of those stock so it wasnt just the s130s... But the I removed it so you can see my turbo better . Nobody else had one on there anyways:rolleyesg Quote Link to comment Share on other sites More sharing options...
cygnusx1 Posted February 19, 2009 Share Posted February 19, 2009 I use a shield that I covered with reflective fiber cloth. I have a 76 with no hood vents and a turbo. Parked hot, it will run like A$$ 15 minutes later if I dont prop the hood up. I would shield if you don't mind the look. People think I open the hood when I park my car to show off the motor. They are partially correct...only partially. Quote Link to comment Share on other sites More sharing options...
MJLamberson Posted February 19, 2009 Share Posted February 19, 2009 I miss having a vented hood Quote Link to comment Share on other sites More sharing options...
srbigbutt Posted February 19, 2009 Share Posted February 19, 2009 I use a shield that I covered with reflective fiber cloth. I have a 76 with no hood vents and a turbo. Parked hot, it will run like A$$ 15 minutes later if I dont prop the hood up. I would shield if you don't mind the look. People think I open the hood when I park my car to show off the motor. They are partially correct...only partially. I'm glad i'm not the only one!! Quote Link to comment Share on other sites More sharing options...
dhp123166 Posted February 20, 2009 Author Share Posted February 20, 2009 Hello? In my original post I wrote that I have jet hot coated headers. Jet hot coated headers... JET HOT COATED HEADERS. There is nowhere near the ambient heat that comes from the stock exhaust manifold or even uncoated headers. We do well to read everything thoroughly and with total comprehension before we spout our opinions... Quote Link to comment Share on other sites More sharing options...
MJLamberson Posted February 20, 2009 Share Posted February 20, 2009 Who are you talking to? Cause everybody who posted went out of there way to give you advise of offer an opinion based on there experience with heat in the bay, they didnt have to, the fact that you have jet hot coated headers doest make what was said any less true or relavent. Quote Link to comment Share on other sites More sharing options...
srbigbutt Posted February 20, 2009 Share Posted February 20, 2009 I just stated my experience because I would hate for you to go through all the trouble of installing your JET HOT COATED HEADERS and have the same issue I have. Quote Link to comment Share on other sites More sharing options...
dhp123166 Posted February 20, 2009 Author Share Posted February 20, 2009 What was offered as opinions was rendered moot by a fact that was originally given by myself in the original post and was ignored by the responding posters. Doesn't make them bad people that need to be defended. Jeez. I explained that I have these wonderful Jet Hot coated headers. They have been installed for years now... I have owned my Z for over a decade and know a little about sources of heat in the engine bay. The implication in my original post (that no one got) was that "because I have drastically reduced my underhood heat, do I need the heat shield?". I'm already bored with this. Quote Link to comment Share on other sites More sharing options...
johnc Posted February 20, 2009 Share Posted February 20, 2009 dhp123166, Congratulations! You just earned 7 days in the cooler. Quote Link to comment Share on other sites More sharing options...
Nismo280zEd Posted February 20, 2009 Share Posted February 20, 2009 dhp123166, Congratulations! You just earned 7 days in the cooler. Wooo bravo! Quote Link to comment Share on other sites More sharing options...
FlatBlack Posted February 20, 2009 Share Posted February 20, 2009 I'm already bored with this. How incredibly uneccessary! Why would you ask if you had already made up your mind? Quote Link to comment Share on other sites More sharing options...
YellowFever Posted February 20, 2009 Share Posted February 20, 2009 I also have a 280Z NA with a JET HOT coated header and non-vented hood. I removed my intake manifold heat shield when the header was added. I haven't had any vapor lock related issues since doing this... but I haven't driven the car during summer without the heat shield, either. My heat shield looks like crap, but if I begin to have heat related issues this summer I will paint the shield with some brake caliper paint and bolt it back in... problem solved. Quote Link to comment Share on other sites More sharing options...
LowCarbZ Posted February 20, 2009 Share Posted February 20, 2009 I'm confused... If the O.P. is boasting about how effective his JET HOT COATED HEADERS are at reducing engine temps, why is he asking if he needs a heat shield if he's just gonna rip apart the responses? Sometimes people on "teh Interwebz" make no sense to me. They ask a question and when they don't get the answer they wanted get all pissed off. Or in this case make absolutely no sense. I'm still trying to figure out if the O.P. was making a statement or asking a question??? O.P.: If you're so knowledgable on the subject why aren't you telling us that you do or don't need it? Quote Link to comment Share on other sites More sharing options...
Evan Purple240zt Posted February 20, 2009 Share Posted February 20, 2009 I have a jet hot coated turbo manifold and still run a heat shield. When your motor is non-crossflow you need every bit you can get. Mine is, and I still run one. Quote Link to comment Share on other sites More sharing options...
capt_furious Posted February 20, 2009 Share Posted February 20, 2009 If the question had been phrased differently, perhaps the thread wouldn't have turned sour. 'Do I still need a heat shield if the headers have been Jet Hot coated? The coating seems to significantly reduce heat radiation." My response would have been that every little bit of heat kept away from the intake side helps. Oh, well. Tact is a lost art. Quote Link to comment Share on other sites More sharing options...
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