We aren't moving fast at all...We are crawling through the woods. Also, the splash guards help keep dirt, mud, etc from getting into the engine bay. A dirty engine is an unhappy engine...is a hotter engine!

 

How about port holes like a Buick?

 

Chico ***** were hilarious... :rofl:

Header wrap also causes the metal on the headers to become brittle, as well. I've seen some people take the wrap off (after many many races) and pieces of metal actually fall off. Creepy.

 

lol! Spoken like a true street truck driver, or west coast pre-runner guy. In the woods, trails, rocks and swamps you don't have the option to move quickly, as Mike mentioned.

 

That's from the excessive heat cycles. The metal keeps getting retempered when it's exposed to the high heat.

 

anyone else with experience with header wrap on a ranger or other? noticeable improvement? better to use or stinless or coated instead of plain steel? makes more sense to me to bump old thread then to start a new one

 

Header wrap traps moisture alot of times and it will rust the crap out of your headers. Your better off getting an aftermarket set and having them coated.

 

I also have been thinking about header wraps. I don't want to do it first of all since there's not much room under the hood to wrap them, without taking them completely off...not worth it. Also the wrap will get filthy and will need cleaned/replaced constantly. I did hear or see that there's some silicone spray coating you can spray over the wrap to make it more durable.
The idea of spraying some coating like ceramic or something would be another idea, but I don't think it would help much. It would just get hot also after a few minutes and you'd be left with the same problem you started with.
I do have a prerunner bumper on with no mud/splash guards...one of them got ripped off and i never replaced it, so I just took the other one off. Since I have the prerunner bumper off, the stock bumper and valence is gone, so it's pretty much like running around with your pants off when speaking about keeping the engine bay cool.

 

interesting cons about heat wrap. i just picked up a $50 roll at autozone (2"x50'. WAY more than i need for my 18" exhaust manifolds for the 3.0L. i'll share with my peeps). kind of disappointing to hear all of this after buying a roll. i don't do any off roading so maybe the maintenance of the wraps wont be an issue. however the endurance of those cast iron exhaust manifolds does pose some concerns for me. how much heat can they actually take?