header wrap

[rudolph]

Has anyone used high temperature header wrap on there headers before?
I am having troble with a project of mine, the headers don't get much airflow and they are cooking some rubber hoseses and burning me.

Dose it last long, or will it turn to dust and fall off? the stuff Super Cheap had looked crappy.

[MVnut]

Don't know about the 'Super Cheap' stuff but header wrap does work (for years) and is good for scavenging

[rudolph]

That sounds good, I am Worryed it will melt and turn to dust

[Warr]

An option, but not necessarily the whole solution is to have the headers HPC treated.
The "Coating" or process does effectively reduce the amount of radiated heat. But cant point you to any figures to prove it :)

[rudolph]

they are allready HPC coated, cost over $600 to get it done, looks good dosn't do much

[Warr]

they are allready HPC coated, cost over $600 to get it done, looks good dosn't do much
Ohh :(
Take some anti carcinogenic pills and wrap some asbestos around it :)

[rudolph]

I need asbestos underpants:wacko:

[Warr]

What is this project you have underway. Getting my nether regions that close to the exhaust, sounds like something pretty 'special'. Have you got any pic's ?

[rudolph]

The underpants but was a joke, I shouldn't realy say on here, it has stuf to do with cars and Cleveland V8s

[Warr]

The underpants but was a joke, I shouldn't realy say on here, it has stuf to do with cars and Cleveland V8s
Doesnt worry me!!
The Cleveland 351 I had in my XD Falcon. I put tri-y HPC treated headers and all sweet, but sounds like you need some alternative heat lag stuff. Have you tries the super-cheap stuff ?

[rudolph]

Doesnt worry me!!
The Cleveland 351 I had in my XD Falcon. I put tri-y HPC treated headers and all sweet, but sounds like you need some alternative heat lag stuff. Have you tries the super-cheap stuff ?

I have try ys to, I am cooking the P/S hose I have a XF ute with a 302

[ArcherWC]

Try Caldwell Racing Supplies in Albany, they will have the good stuff.


Also possibly an exhaust shop (Woolf Mufflers on Dominion Rd would be your best bet)

[trumpy]

they are allready HPC coated, cost over $600 to get it done, looks good dosn't do much

Holy crap.....did they gold plate them as well? Just got a quote to HPC my headers and pipe (less muffler) and came to $200 to $230, including sandblasting the pipes first.

[trumpy]

I had header wrap on my race car, mainly to keep things a little cooler under the engine cover. Worked well and used to last all season no problem, in fact was in very good condition when peeled off for the annual engine rebuild.
Being out in the weather might be a different situation though.

Just a quote from a Triumph forum....."The main drawback to header wrap is that it retains moisture when it gets wet. This is a Very Bad Thing (tm) for steel headers and exhausts. It's a Sorta Bad Thing (tm) on stainless parts like our collector/connector pipes.
Stainless will still corrode over time... Personally, I wouldn't put header wrap on my bike, but several of my friends run it and haven't had any problems. They re-wrap their exhausts once a year (in the fall, not the spring)... I haven't seen any issues, but none of them are all-weather warriors, particularly..."

I guess different people have different experiences with the stuff though personally, on a bike, I would go for the best quality wrap you can get.

[bucket boy]

I have try ys to, I am cooking the P/S hose I have a XF ute with a 302

you sure your not got motor jetted to lean shouldnt have trouble keeping this sort of combination cool

[bucket boy]

Holy crap.....did they gold plate them as well? Just got a quote to HPC my headers and pipe (less muffler) and came to $200 to $230, including sandblasting the pipes first.

it goes on o/d of pipe and lenghts v8 larger o/d 8 pipes best product available

[trumpy]

it goes on o/d of pipe and lenghts v8 larger o/d 8 pipes best product available

Take back my "holy crap" then....forgot you're talking V8!......:o: (old age brain fog..)

[bugjuice]

have you thought about since you're having problems with the heat and things melting to it, rerouting the things that melt? If you can't do much about the heat, then just move things away from the heat..??

[Macstar]

I haven't personally spoken to exhaust shops yet, but internet sites revealed an interesting but unverified claim:


Header wrap, by retaining the heat within the exhaust system, gases are supposed to escape / flow quicker allowing improved performance. Also, header wrap can keep other parts of the engine / car bonnet area cooler, such as the air intake system.

Apparently though there have been cases of header wrap where the temperatures captured within the manifold are so severe that they have literally melted the manifold and destroyed it....?!

[speedpro]

I bought some stuff from "Forman Insulation" years ago. Some was like a 15mm thick bright white pink batts sort of stuff but was heatproof at welding sort of temperature and the other stuff which is more like what you are after was a woven web about 2" wide and 1/8" thick. They have all sorts of foil tape and fibreglass tape to secure it as well. I have a turbo bike with HOT bits under the fuel tank and next to my leg and it sorted out any problems very nicely. Same in a turbo L200 ute I had as well.

[rudolph]

It's probably the xf 6cyl pump with the hose straight out the back... generally it heads straight for the header and is a common problem.

Yes it has the 6 cylinder pump still, I need new hoses made but, I have a set of smaller Coby headders I am going to try.

When i do burnouts and doughnuts they get pritty hot:laugh:

[rudolph]

Had the same trouble myself... I can tell you that Enzed will come out in their van and make a bew one with a right angle entry, problem solved :yes:

Me, I just wrapped it in header wrap (and the headers), problem solved :)

Will Enzed charge much? that sounds like a plan. If i take the belt of the P/S pump i wonder if i could drive across town with out fucking something?

[rudolph]

Yes, they charge well, but they come to you, and they do a perfect job. I think mine was about $150.

You can drive it fine without fucking anything with the belt off. The steering will be incredibly heavy, but if you can live with that, you're sweet.

That sounds ok, and you reckon the stuf you wraped the headers in lasted?

[Sollyboy]

I found some good cheap exhaust wraps at woolf mufflers in Mt Eden, they lasted at least 5 years till I sold the bike , try to get stainless wire to tie it off

[rudolph]

Yeah, I used the thermotech branded stuff from a V8 supply store. It's ok, but the quality of your wrapping job is cruicial. Needs to be wound as tight as you can, and overlapped 50%.


I got ENZED to make a hose, it cost $150 like you sed, I put a hi temp sleeve over the hose and with the new Coby pipes everything is happy:niceone:

[bimotabob]

I had header wrap on my race car, mainly to keep things a little cooler under the engine cover. Worked well and used to last all season no problem, in fact was in very good condition when peeled off for the annual engine rebuild.
Being out in the weather might be a different situation though.

Just a quote from a Triumph forum....."The main drawback to header wrap is that it retains moisture when it gets wet. This is a Very Bad Thing (tm) for steel headers and exhausts. It's a Sorta Bad Thing (tm) on stainless parts like our collector/connector pipes.
Stainless will still corrode over time... Personally, I wouldn't put header wrap on my bike, but several of my friends run it and haven't had any problems. They re-wrap their exhausts once a year (in the fall, not the spring)... I haven't seen any issues, but none of them are all-weather warriors, particularly..."

I guess different people have different experiences with the stuff though personally, on a bike, I would go for the best quality wrap you can get.

I agree 100% with you!!
Used it on my mild steel expantion chambers off my RG500
all weather bike and it caused rust on the lower chambers big time.
Avoid like the plague.


Cheers
BB