Hi guys,

Can some of you post pictures of your setups for heat shielding the inside of your engine bays? My tempretures are soaring in there and I am hunting for ideas!

Thanks in advance for your time folks!

George

 

I just reasantly sent my exhaust manifold, uim, lim and turbine housing off to be ceramic coated. I also got a turbo blanket from www.gothamracing.com that will cover the ceramic coated turbine housing. That should cool things off. I will also wrap my downpipe and possibly my ceramic coated exhaust manifold in header wrap. Are you single turbo or no?

 

Single TO4

my pipes are ceramic coated, but still the tempretures are wayyyyyyyyyyy high!

i am installing a turbo blanket by garrett, but i am after heat protection to the other components of the engine bay.

Thanks

G

 

Here's a turbine DIY heat shield article I found a while back. I might try it cheap and should be effective.

http://www.supraforums.com/forum/sho...d.php?t=326366

 

that is awesome, lol. maybe as like a second guard against heat i would put some thermal tape around the stainless pot.

 

i followed cripsy write up to the t, here is the link.
http://www.negative-camber.org/crispyrx7/gt35rpage2.htm

 

Thanks Guys!!! Thats some really good info there! The pan one is funny but damn neat!

 

Here's a few things:

Lower intake heat shielding:



Heat shielding like Crispy's:



I like the stainless steel pot method better, but here's one I got from ATP:



Wrapping the downpipe, and cat/midpipe.



Hope that helps.

 

Does this actually work? Seems like it doesn't cover the hotside completely? I know it looks cool, but does it work as well as say a turbo blanket would? Thanks in advance.

 

man that looks great! how does the thermal stuff hold up? I wasned to do that to my lim but I was always afraid that it would start pealing and looking bad after only a short amount of time.

 

atihun: your setup looks great!

Where did you get the heat sheilding you used?

 

haha, ive got to admit, that pot idea is cleaver

 

im trying to make a heatshield for my carb set up and trying to think of a good way

 

awsome!! atihun your sheilding ideas are impecable!!! nice work and thanks for the hints!!

 

FYI- DO NOT WRAP YOUR CERAMIC COATED COMPONENTS!!

Basically you'll be holding all the heat in the ceramic and its gonna fail VERY quickly.
Your best bet is to get the good, but expensive, ceramic coating. This will keep the heat inside and you wont have to bother with all the heat shielding. I have my turbo manifold, turbine housing, downpipe, and LIM coated. Hit the heat at the source. If its still not enough, do the shielding.

 

well i think it looks great, on the SUPRA site, something like a Buick from the 1980s, i wrapped my headers on my Camaro back in 1989, Im looking for somthing really NEW!! yuo know where all the heat stays in the pipe, none gets out. some type of ADIABATIC system!! we are always screwing around with antique A/I-W/I,,, heat wraps etc .. Etc..

 

Great thread, lots of good ideas here. Atihun, seeing those pics makes me more impatient to install my GZ LIM

 

thanks for the info! hopefully the ceramic coating will be enough.

 

Wraping is a good short term solution, but eventually will thermally fatigue your piping. We've been over this here: https://www.rx7club.com/forum/showthread.php?t=546801

Dont get me wrong guys, I'm all about managing heat, I deal with it all day at work. Wrap to your hearts content, I'm just saying dont do it over already coated parts.

Excellent ideas in here, i'm diggin it too.

You're welcome

 

oh so would you not recomend putting a turbo blanket on a hotside after you ceramic coat it? I've already got the turbo blanket from gatham racing and just descided to get the turbine housing coated with all my other stuff just cause it was such a good price in the grand sceme of things.

 

Hey dude, I was reading some of your posts regarding heat wrapping over ceramic coating. At the moment my downpipe, manifold, and turbine are all ceramic coated. Very nicely done I might add. I was just wondering what you had to say in terms of "heat shielding" rather than heat wrapping. I'm looking into making my own heat shield similar to the one done on the Supra. Would that have any adverse affects on the ceramic coated turbine? Please let me know. Thanks.

Great thread btw guys. A lot of very useful information. I'm glad I came across it .

 

That's a good question that I'd like to know the answer to as well.

 

I had a turbo blanket on the hot side of my turbo and pieces of metal started to flake from too much heat retention and the turbo blanket began to fall apart.

Save yourself time and money and ceramic coat the first time.

 

I got it at Summit : Thermotec Heat shielding:

http://store.summitracing.com/partde...5&autoview=sku

I degreased everything that I put the shielding on, and one trick I did to extend the life was to put Crazy glue on the cut edges so it hardens and doesnt peel / fray apart.

Unfortunately I don't know how long it will last, but when it peels off, I'll just replace it.

Also, I was also told that bb turbos don't do as well with the exhaust housing ceramic coated, so I left the turbo uncoated and just used a shield.

The exhaust manifold and downpipe are ceramic coated. The stainless catalytic and titanium exaust (just the piping to the can) are wrapped.

 

I would definately not put a blanket on the turbine housing if its already been coated. It needs to be able to let go of the heat that it pulls from the substrate. Basically if you use the blanket, you do just that, hold the heat against the ceramic, giving it no where to go.
I bought a blanket from Gotham back when i first went single turbo back in the 2-rotor days, now its sitting in a box in the garage. Barely used, anyone want it? . It helped lower temps of nearby components and underhood heat, but not as much as i would have liked. The Ceramic coating should do the same, but you can also do the same for the manifold and downpipe, lowering temps even more, and not have to worry about thermally degrading your exhaust piping with the wrap.
Keep in mind there are quite a few different exhaust coatings. Each have different operating heat ranges, varying thermal conductivity, corrosion resistance, etc. And there are a few different methods of application as well.
We generally need the "High-Heat" coatings (2000*+) since we're rotary and boosted. There are a few different companies that actually do this well.
Generally the polished aluminum coating is only good up to ~1200-1300*F, others have multiple coat systems that are good from 1600-2000*F. With the polished aluminum coatings you need to be careful of the Highly-Polished ones. Basically they use a larger alumina particle to get a better shine, but the corrosion resistance suffers. Not too big of a deal since we (RX7 owners) usually just use them on intake manifolds/intercooler piping as they wont hold up to our exhaust heat. Plus, we generally keep them clean anyway.
Look around for the High Heat coatings, find out the differences, make your decision and get it done. Wrap if you have to, but only short term, if possible. Get your stuff coated when you can. Watch out for warranties also. One company only covers "rust through" meaning there has to actually be a hole in your exhaust for them to cover it. Most warranties are decent, some are better than others. Also, companies that manufacture their coatings are going to be better than ones that just buy coatings from Techline and apply it themselves. Just like a paint job, the preparation is the most important part of the job.

I did a good deal of research on ceramic coatings, even before I worked at a place that does them. As I said in the other thread, I'm not going to say which one because I want you to make up your own mind about what coatings you want to do, and where to get it done.
My advice, do some research on your own. Don't take my word for it.

Here's a pic of my stuff getting coated, I can't tell you what is going on, but you can probably figure it out as you do your research. Have fun!