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I've been running a 2bular header which I wrapped with DEI Titanium wrap. It's supposed to be good quality stuff, but mine cooked off and fell apart in less than a year. I decided to make my own out of better quality materials.
Here's the result:
![Product Chair Furniture Beige Comfort]()
It is made in three pieces - top, bottom, and elbow. The fit is intentionally a bit loose, as the idea is to manage the heat, not retain all the heat inside the header, in which case most of the heat would make it to the exhaust and melt the packing. The seams allow some of the heat to dissipate, and the blanket also absorbs some heat. If I need to retain more heat, I can add more eyelets and tighten up the fit. The opening at the elbow is for the wideband sensor.
So far, the fit seems to be pretty good for heat management. After a track session, the shield itself got hot, but was still almost cool enough to touch briefly. The floor and forward wall of the trunk area were just warm; before they had been too hot to touch.
Each part is two layers of 18 oz Mil-Spec silica fabric which is rated for 2100F service, melting point 3000F. The filling is two 1/2" layers of ceramic blanket rated at 2400F. It is sewn with Kevlar; that's the weak link with a service rating of 570F. If the Kevlar starts burning out, I'll sew over it with Inconel thread if I can find some, or unravel some of the silica cloth and use that. The eyelets and zipties are stainless steel.
Here's the result:
It is made in three pieces - top, bottom, and elbow. The fit is intentionally a bit loose, as the idea is to manage the heat, not retain all the heat inside the header, in which case most of the heat would make it to the exhaust and melt the packing. The seams allow some of the heat to dissipate, and the blanket also absorbs some heat. If I need to retain more heat, I can add more eyelets and tighten up the fit. The opening at the elbow is for the wideband sensor.
So far, the fit seems to be pretty good for heat management. After a track session, the shield itself got hot, but was still almost cool enough to touch briefly. The floor and forward wall of the trunk area were just warm; before they had been too hot to touch.
Each part is two layers of 18 oz Mil-Spec silica fabric which is rated for 2100F service, melting point 3000F. The filling is two 1/2" layers of ceramic blanket rated at 2400F. It is sewn with Kevlar; that's the weak link with a service rating of 570F. If the Kevlar starts burning out, I'll sew over it with Inconel thread if I can find some, or unravel some of the silica cloth and use that. The eyelets and zipties are stainless steel.
