Header heat

manga_blue · Postby **manga_blue** » Tue Mar 04, 2008 11:10 pm

How do you keep it down? The headers are already ceramic coated but the airbox, heater hoses, and nearby wiring are still getting disturbingly hot and smelly. I've refitted the extinguisher for daily driving.

Has anyone got experience with header wraps or exhaust wraps or heat blankets or anything else that works?

Steampunk · Postby **Steampunk** » Tue Mar 04, 2008 11:17 pm

I put heat-reflective tape, which is same as header-wrap but with a metalised surface one side and sticky on the other, on the heat-shield protecting my pod and it works only if you put at least 2 layers on/around the part you are protecting.

I also have it on the heater hoses, and a hydraulic hard-line near the headers. But what I did is wrap foil around the hoses first and then reflective wrap around that.

There's a corrugated aluminium panel made by ACL that works very well at deflecting and dissipating heat. NMX516 has one, as do a few others.

fattima · Postby **fattima** » Tue Mar 04, 2008 11:17 pm

Have heard many negative stories about exhaust wrap, mainly manifolds cracking.
Saw this the other day, looks interesting
http://www.trackdogracing.com/website/heat_shields.htm

pcmx5 · Postby **pcmx5** » Wed Mar 05, 2008 8:35 am

fattima wrote:Have heard many negative stories about exhaust wrap, mainly manifolds cracking.
Saw this the other day, looks interesting
http://www.trackdogracing.com/website/heat_shields.htm

I have used exhaust wrap on my current system with no problems over two years,but have the Track Dog shield in the garage waiting to go on when I change to RB headers;it doesn't sit directly on the headers,leaves space to aid flow.

Sorry probably won't do the change for a couple of months so cannot promise a "roadtest" soon!

Peter

bark · Postby **bark** » Wed Mar 05, 2008 10:00 am

Manga_blue I can strongly suggest using the corrugated aluminium panel by ACL, it's a bit pricey ($70 for 700mm x 300mm sheet) but it works as it has a ceramic fibre insert. I ahev just installed it on my turbo application and the bonnet no longer gets hot!

I can also recommend using silicone hose covers on those pipes that are constantly near any hot spots such as exhaust manifold. Some speed shops will have the silicone hose covers and the colours are red or a light grey - I got mine from OG Speed Shop in SA, also a bit pricey at about $30 per metre but great stuff.

I can send pic's if you like to show you what I'm on about if you wish just PM me oyur email address.

manga_blue · Postby **manga_blue** » Wed Mar 05, 2008 3:33 pm

Thanks guys. I think I've got it worked out and I'll use everyone's advice. That means:
1. I've ordered the Track Dog bag, thanks Pete and Bruce
2. I've bought the reflective tape, thanks Andrew, to cover the power steering hose, the really hot part of the airbox, the centre radiator hose and the heater hose until the Black Dog thingy arrives.
3. I'll swap to silicon hoses (not just sleeves) all round later in the year when I come round to a preparing for an enduro again.
4. If steps 1 and 2 are not enough then I'll form the ACL sheet between the airbox and the headers, curving itaround towards the firewall to separate them from the heater hoses.

Aren't forums great!

Steampunk · Postby **Steampunk** » Wed Mar 05, 2008 4:56 pm

I think this is what bark meant about silicone hose surrounding things:

Just look at that ugly-ass engine bay, who would do such a thing

I call my engine bay \"Franky\" (Frankenstein)

I had silicon hose lying around, made by Gates, and so I thought I may as well put it to some use.

manga_blue · Postby **manga_blue** » Wed Mar 05, 2008 9:59 pm

It's not so bad. I'm a firm believer in never washing an engine bay.

My main issues are that heater hose you can see just below the #4 primary and the radiator hose under the #1. They're both hot and tacky.

bark · Postby **bark** » Fri Mar 07, 2008 12:30 pm

This is what I was referring to:

See the light grey material behind the front turbo flange, this is a silicone sleeve. It slides over your existing hoses/lines and prevents these hoses/lines from getting hot.

manga_blue · Postby **manga_blue** » Fri Mar 07, 2008 5:17 pm

Yh, thanks Bark. I've seen them for sale but I'll just do it cheaply with reflective tape until I get the Track Dog blanket. If they're still hot then I may do that as well.

sabretooth · Postby **sabretooth** » Mon Mar 10, 2008 8:47 am

Repco sell that ACL stuff. I've got some sitting in the garage waiting to go around my turbo and dump pipe.

It certainly looks the goods, and seems to be the OEM shielding on a lot of cars.