Does header wrap really help under hood temp?

[phatmanforya]

I don't want to waist money on header wrap if it doesn't work; so my first Question is is it worth the money?

If it is, where can i get it in Riverside, CA?
and about how much would it cost to do a v6 (91 ranger)?

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[ntsqd]

It might help the underhood temps, but it voids most header warranty's. The various ceramic coatings do a better job and don't kill the headers in the process.

If you do go for the wrap, DO NOT overlook using the sealing 'paint' on it afterwards. The sealer keep the wrap from absorbing oil. A friend of mine dang near lost his car to an oil fire when one of the trans cooler lines split.

[14802]

Everything ntsqd said is true... but if you must try summit or jegs, they have a fiberglass comp. just make sure you get the 2000 deg. If you have aftermarket headers plan on replacing them every couple years due to moisture between the header and wrap, they rust out. but yes it does drop the temp and you can work around the headers after running in a shorter period of time...

[dadunc205x]

just make sure to wear a long sleeve shirt w/ gloves and goggles, that header wrap is nasty stuff. my shirt has been washed many many times, and i still itch when i put it on. also, since the heat stays in the pipe longer, it deteriorates the metal faster than usual.

[mattb]

Do a search on this subject. I think it's been thoroughly discussed.

[phatmanforya]

I just did a search and your right it doesn't sound like it's worth the $100 and new headers through out the year. I'll just fab up some heat sheilds with a small scoop on the front and exit under the car. I might also add a box for cold air intake.

Thanx for the help everyone, i hate waisting money.

[scottm]

I have had good luck with header wrap on my 454 rv and my 76 blazer daily driver. It helps a lot to keep the starter cool, and they have both lasted many years with no problems. The secret is to not wrap the first 6 to 8 inches of tube from the head flange. The tube runs bright red hot there, above the temp where metallurgical changes (austenitizing) occur. What happens is the metal absorbs carbon from the exhaust gas, raising the carbon content of the steel, which makes it brittle and crack prone. But lower down, it works well to reduce heat around wires, fuel lines, and the floor under your feet...