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You hear alot of different things about header wrap. We have used it on a modified circle track car for years and have never had any problems. The wrap will make a big difference in the amount of heat disspated into the engine bay, the exhaust will stay hotter further into the system, but probably not enough to damage your O2 sensors downstream. I would do it, just wrap it tight and be consistent to prevent moisture from getting in between the wrap and the tubing. Good luck!
so you werent fully wrong but according to him as long as its wrapped tight should be good
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how many circle track cars see puddles at highway speeds?
-da chinchilla
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on cars with ocasional use its ok
but with most all header companies , it
VOIDS WARRENTY
i guess ill have to get you guys pics of some headers that have been wraped and let you all see the damage is causes to them
run a stainless header, shouldnt have problems then.
It is'nt that the header will rust . The higher exhaust temp. will cause metal to fatigue faster . Which I have heard that using wraps on header can cut their life expectancy up to half before they begin to crack .
If you add wrap to a car running a turbo which ia a restriction in the exhaust , which in turn will raise the temp. of the exhaust gases in the manifold . The header will wear out very fast .
Wrapping the header is OK if you don't mind replacing the header twiced as much as an unwrapped one . But for a daily driver an unwrapped exhaust will do fine . The money spent in wrap and new manifolds later on could go into building the engine for more power .
But it really comes down to do you want to wrap the header and take the chance on having to replace it when it starts suffering from metal fatigue . Or leave the manifold alone and buy other things for the car .
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pretty much all covered it, but heres something i havent seen yet.
i was thinking a while back of wrapping my psetter. eric laid it out, so i got the therm changed once again with an ac delco, not a stant or kem. worked good, so i sold my header wrap since it is ceramic coated.
from what i have read and seen from forums of all types, from domestic, imports, muscle cars.
On headers:
mild steel uncoated.... like said fatigues the metal, also doesnt allow natrual expansion, and retains moisture if the wrap isnt coated with hi temp coating afterwards. can be bad in no time
mild steel ceramic. same thing with fatigue and expansion, but with the coating, slows down the degrading from moisture retention. basically think about a hot moist heat wrap
Stainless steel, same thing can occur, but at a slower rate since stainless is stronger, and more moisture/corrosion resistant. 304 is good, 316 offers more corrosion resistance.
stainless steel coated, prob the most desirable to wrap if you are gonna wrap one. but same thing apply.
on manifolds stock. good for keeping temps down, but can be awkwards to wrap with some manifold designs. coat manifold in hi temp sealing spray, wrap, then coat the wrap.
some are getting 4-5 years out of wrapping headers as opposed to the others getting 6-7 or 8 years out of the header. for some the temps lower are enough a compromise, however, underhood temps rise mainly at a standstill. air does flow under the hood when moving, so its not much a factor.
if need be i can post all the sites i have saved on it.
