Header Wrap inquiry
#46
Race Director
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Ed,
You wont beat summit racing for price!
http://store.summitracing.com/defaul...Search&Ntt=dei
That is for a 50ft section. If you need less you can get lengths from like 10 bucks.
You wont beat summit racing for price!
http://store.summitracing.com/defaul...Search&Ntt=dei
That is for a 50ft section. If you need less you can get lengths from like 10 bucks.
#47
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Thanks Andy
Regards
Ed
PS How many feet do I need ?
They carry silicon hose ?
Regards
Ed
PS How many feet do I need ?
They carry silicon hose ?
#48
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It really depends how many pipes you will be wrapping! You can wrap right down to the muffler if you want (a bonus of this is to reduce cabin temps). I got the 50ft part. You will need more than that if you are doing your headers and x-over and down pipe etc. Remember to get it damp before you try and wrap! and get a few hose clips handy.
#49
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What makes headers (or any exhaust component) crack is a thermal gradient (temperature difference per distance). I am sure you have seen (pictures of) glowing exhaust systems, but if you look closely the flanges are not or much less glowing (cooler) because of their larger (outside) cooling area relative to the heat source area (hot gasses inside). One way to minimize this difference (thermal gradient) is to coat the inside.
I know some people have cautioned against this, but their concerns of non-stick, non-existent and flaking coating is against my factual experience. I have used HPC in the past, but will use Jet-Hot Coatings in the future (better customer service) and have gotten the explanation that degradation of the normally lower temperature internal coating is an oxidation process at elevated temperatures, but since there is very little oxygen inside the pipe coating actually holds up better than if it was on the outside. It is also protected a little by the typical carbon deposits. The coating is quite thin at ~.002” so if it against my experience should flake off it will do less damage to the turbo turbine than the flakes of carbon that occasionally gets hurled through the system. This btw is the only reason that the turbo manufacturers no longer make the less impact resistant ceramic turbine wheels. Too bad, since they due to their light weight, provided very quick spool-up.
Laust
I know some people have cautioned against this, but their concerns of non-stick, non-existent and flaking coating is against my factual experience. I have used HPC in the past, but will use Jet-Hot Coatings in the future (better customer service) and have gotten the explanation that degradation of the normally lower temperature internal coating is an oxidation process at elevated temperatures, but since there is very little oxygen inside the pipe coating actually holds up better than if it was on the outside. It is also protected a little by the typical carbon deposits. The coating is quite thin at ~.002” so if it against my experience should flake off it will do less damage to the turbo turbine than the flakes of carbon that occasionally gets hurled through the system. This btw is the only reason that the turbo manufacturers no longer make the less impact resistant ceramic turbine wheels. Too bad, since they due to their light weight, provided very quick spool-up.
Laust
#50
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Humm.. That's food for thought. So would you coat the inside and the outside . Are they able to get inside the pipe ? Is this a like bath or a hot dip process ?
David floyd loves his jet hot coated pieces.
regards
Ed
David floyd loves his jet hot coated pieces.
regards
Ed
#51
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Andy
I assume when doing the headers that its best to use 1 inch wide wrap ?
TIA
Ed
I assume when doing the headers that its best to use 1 inch wide wrap ?
TIA
Ed
#53
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FWIW I used the 2" wrap on all of the components I wrapped. I didn't have any difficulty wrapping them or fitting them back on the motor once wrapped.
#54
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Got ya
Thanks again
Ed
Thanks again
Ed
#55
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Ed,
Thinking about it, the 2" may even be getter on the headers as there would be less overlap points, its a pretty tight fit between the stock manifold sections...
Thinking about it, the 2" may even be getter on the headers as there would be less overlap points, its a pretty tight fit between the stock manifold sections...
#56
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So Paul, you did or didn't remove the heat shield on the headers when you wraped ?
Thanks
Ed
Thanks
Ed
#57
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I only removed the heatsheild on the upper part of the #4 runner, and that was for the purposes of easily fitting an EGT probe.
#58
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Thanks Paul
Ed
Ed