"Wrapping" Stock Jazz header

[claymore]

.....

[FIT]

feel any different with the car?

[Philip Lee]

my only concern is, i heard stories that using heat wraps have higher chance of getting rust on the header.

is this true? did u ever get rust on your headers after using wraps?

[kimo]

I used the wrap in previous car, but found out that it makes the header so hot that it even crack.

[Fizz]

I used the wrap in previous car, but found out that it makes the header so hot that it even crack.

same here. i used the same brand Thermo-Tec "white" header wrap couple of years back, wrapped it around an aftermarket stainless steel header on my Civic and after about 2 months the header had a little crack around the welds. Removed the wrap and took the header for warranty replacement (of coz i did not tell them i wrapped it :D ).

[kimo]

I think it's worth only in high output car, as for Jazz it's usless unless you got the stuff free.

[vividjazz]

Put wrap on the Geni headers on my Suzuki GTi years ago and the headers corroded badly within 2 years and had to be replaced once they developed holes. Didn't make a big performance difference.

I used the spray after the thermal wrap. Don't know if that made it worse. Also the Geni headers had a coating on them that may have reacted badly to the wrap.

They smoked really badly straight after being installed (looked like the engine was on fire).

I wouldn't ever do it again.

I understand the wrap makes a bigger difference with headers located on the side of the engine rather than the front like the Jazz and Suzi.

[Fizz]

i think these thermal wraps are kinda "old-school" already nowadays, and might not be as efficient as ceramic coatings. but then, i guess ceramic coatings would cost an arm and a leg compared to the wraps...

[Nightrider]

Heatwrap trapps the heat in the header but the headers metal is then subjected to higher temperatures - thats why wrapped headers wear and crack quicker.
It does reduce engine bay heat though. Its a trade off.

[kimo]

Yes it' usless for our car and I have done it in my Starlet few years ago and the header crack, and had to weld the crack and throw the wrap, and I felt no gain at all. I don't say that wrap is waste of money. Btw if you read other people post you will find it crack many people header. Btw I spend only $10 in my CAT mod, and gained more than the wrap header of yours :D


Hey, Kimo tell us how you come to your conclusion that wrapping is usless. Is it from all your vast drag racing experience? If you had read the post you would see that I predidcted only small gains and for $30 that is virtally free. Tell us about all the modifications you have made to your ride that would gain you one tenth for $30. If you have any I will run out and get them tommorow. How about some posts and pictures of modifications you have made to your car.