Don, when I had my headers wrapped I didn't notice any reduction of
the underhood temps. It took longer for the engine bay to heat up,
but in the end the temp was about the same. And it also took longer
for things to cool down. I remember once, the truck had set for close
to 2 hours and I found that I couldn't keep my finger in the
windshield washer bottle because the water was too hot. That's when i
decided to have the headers coated. That's the best money I've ever
spent on my truck. Also you might want to check out this page:
http://www.mikesdakota.com/html/dakota/thorleycoat.html and see what
the wrap will do to your headers in the long run.
--Mike
www.mikesdakota.com
> The main reason for doing the exhaust wrap was for noise, to help keep
> it cooler under the hood and..... Well, its hard to rationalize but think of
> this, DC puts the tranny cooler in the truck to help cool the tranny, but you
> still have the hot exhaust pipes right from the manifold to the cat in front
> of the tranny. As the truck is moving down the hi-way the heat from these
> pipes are being blown over the tranny. I'm doing any thing I can to help cool
> the tranny and engine. I tried this and hope it works. The sad thing is I put
> in the tranny temp gauge after the exhaust wrap so its hard to say how much
> the wrap really works in that respect.
> Don M
> http://www.geocities.com/maldbnsf
> '00 QC Bronze, 4.7L, Rest listed at
> http://www.twistedbits.net/WWWProfile/dakota/QwkvWz@DAJFf6/profile.htm
> P.S. Did I mention I love my DAK!!!!!!!!!
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