Glenn,
I agree with you. I lived 7 blocks from the beach for years. I could not have
fancy rims or paint on my car because of the marine layer in the mornings. I
have a Toyota we used to laugh about because after the first year there was
tiny rust holes in the window pillar at the seam and a few other places. The
joke was i wonder what kind of can was welded in that spot. I started parking
it out side after that and the rust proved it never sleeps. There was hole
appearing all over even in the bed from the salt that settled with the marine
layer in the morning. Now i live about two miles from the ocean in Fountain
Valley. The accelerated rusting of our vehicles stopped. I see no rust at all
on my 1996 Chevy that i got new when we moved here. So where you live even in
the same area makes a big difference.
My friend was out visiting from the mid-west. It was a real foggy day last
winter. He said, i did not you guys got river fog.
So i guess where he lives the rust would not be sleeping. LOL
Vigil
Glen Byrns <grbyrns@ucdavis.edu> wrote:
I've used header wrap on the turbo exit pipe for years and haven't seen
accelerated corrosion. I think the difference in experience across the
country may be due to the climate conditions. When the header is hot and
allowed to cool, moisture can only be drawn and condense on the wrap/header
if there is moisture present. Those of us who pamper our cars with garage
storage in California are driving our hot manifolds into a fairly moisture
free environment for the "cool down". If I were parking my heated up Sprite
by the beach or outside in high humidity, I suppose it would be more of a
factor. As it is now, I'm quite sure the header pipe will outlive me.
There is absolutely no question that it has made a difference in the
under-bonnet temps.
I only wrap the pipe exiting the turbo however, since wrapping the manifold
before the turbo caused it to get so hot that the expansion increased the
cracking problem with the original homemade manifold. The new one is
thicker, better welded, and supported by a brace to take the turbo weight.
No cracks yet!
Glen Byrns
> Hello all, I just finished reading an article about exhaust wrap which
> basically said it would severely shorten the life of the header.In other
> words,
> "don't use it". Any thoughts out there? How about the coating for both
> the
> inside and outside of the pipe that I see advertised? Some kind of
> ceramic ?
> Summer is coming on and I need something to keep the heat down.Bob C
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