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Header heat shield
Posted: Sat Jun 18, 2022 7:38 pm
by Mr. Toasty
I’ve been imagining this for a while and finally got it in the car. It’s a simple 6x18” sheet of thin aluminum I got at Lowes for $13, so definitely nothing fancy. One straight bend and a lot of hand forming, especially on the rear edge. Any input/suggestions welcome!
Re: Header heat shield
Posted: Wed Jun 22, 2022 8:25 pm
by Dare
Interesting. Looks like its not supported on the outboard side. Given that its aluminum, any concerns for cracking at the mount points?
I took a slightly different approach with a heat blanket:

- EngineBuild_065.JPG (2.45 MiB) Viewed 2297 times
Re: Header heat shield
Posted: Wed Jun 22, 2022 9:45 pm
by Mr. Toasty
Dare wrote: Wed Jun 22, 2022 8:25 pm
Interesting. Looks like its not supported on the outboard side. Given that its aluminum, any concerns for cracking at the mount points?
I took a slightly different approach with a heat blanket:
EngineBuild_065.JPG
Good point about it cracking, and no it’s not supported on the outboard side. I guess time will tell how well it holds up. I like the heat blanket idea! Much easier to handle than a rigid sheet of aluminum
Re: Header heat shield
Posted: Fri Jun 24, 2022 2:51 pm
by Dave W.
That's a good idea. Porsche makes one, too. For some reason it was only installed on the auto trans 944. See #13 in this diagram;
http://www.autoatlanta.com/porsche-part ... ion=105-05
Re: Header heat shield
Posted: Fri Jun 24, 2022 11:38 pm
by Mr. Toasty
Yup, I looked at that before making mine. As I understand it, the OE shield on AT cars is there to keep the ATF lines cool rather than protect the whole area from the headers. I wanted to keep the fuel lines cooler and also channel any leaking fuel away from the headers
Re: Header heat shield
Posted: Sat Jul 02, 2022 6:06 pm
by j1nx3d
RS Barn made one, I have it fitted on my 944. It has a thermal material on the hot side and it arrives with a film on it to prevent scratches. Not sure how effective it is on my car but RS Barn had tested a decent reduction in under bonnet temps.
Re: Header heat shield
Posted: Sat Jul 02, 2022 8:12 pm
by Mr. Toasty
j1nx3d wrote: Sat Jul 02, 2022 6:06 pm
RS Barn made one, I have it fitted on my 944. It has a thermal material on the hot side and it arrives with a film on it to prevent scratches. Not sure how effective it is on my car but RS Barn had tested a decent reduction in under bonnet temps.
That looks really nice! Much nicer than mine lol. I'll have to look it up and see if they're still making them, or at least try to copy it next time I do this
Re: Header heat shield
Posted: Fri Sep 09, 2022 8:29 pm
by Seagrams
Re: Header heat shield
Posted: Fri Sep 09, 2022 8:31 pm
by Mr. Toasty
Seagrams wrote: Fri Sep 09, 2022 8:29 pm
Gave a go at it. I did notice it helped engine bay temps a bit.
PXL_20220816_193838350.jpg
PXL_20220816_201412421.jpg
PXL_20220816_201533281.jpg
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Very clean! Is that a rolled top edge I see?
Re: Header heat shield
Posted: Fri Sep 09, 2022 8:35 pm
by Seagrams
Mr. Toasty wrote: Fri Sep 09, 2022 8:31 pm
Seagrams wrote: Fri Sep 09, 2022 8:29 pm
Gave a go at it. I did notice it helped engine bay temps a bit.
PXL_20220816_193838350.jpg
PXL_20220816_201412421.jpg
PXL_20220816_201533281.jpg
PXL_20220816_202740925.jpg
PXL_20220816_202752859.jpg
PXL_20220816_202813088.jpg
Very clean! Is that a rolled top edge I see?
Yup, I gave the edge that mounts to the coolant tube a roll over to try and double up the strength.
Didn't want to spam too many photos in my original post.

- PXL_20220816_201420581.jpg (1.32 MiB) Viewed 1893 times
It is aluminum so I hope it can hold up to a bit of abuse.