new toys are fun

[Mike]

thanks to lastcall190 for a great deal and great communication.

http://www.fquick.com/images/vehicles/full/1824210958.jpg?1226889441

[Featherburner]

What's the matter Mike? You spend so much on the headers that you can't afford to turn on a light? :lol: j/k They're a great looking set of headers.

[Mike]

the lights are on, but i had laundry hanging

[Knipps]

Sweet, you bought a Wii

[Mike]

nooo that just means i was at the nintendo store

[SteveR]

Sweet, you bought a Wii

:rofl:

[camaro2you]

how much did you pay if you don't mind me asking? you can send a pm if you like.

[Tru2Chevy]

how much did you pay if you don't mind me asking? you can send a pm if you like.

Just look at the Classifieds....

- Justin

[sweetbmxrider]

those look awesome, are you going to coat them?

[Mike]

no. they are stainless and should be fine, i dont drive in the rain or snow

[sweetbmxrider]

true, i just love how quickly mine cool down. enjoy.

[Tru2Chevy]

Shouldn't you not coat stainless headers? I remember a big discussion about that here a while back...

- Justin

[wretched73]

sorry > wii

[qwikz28]

Shouldn't you not coat stainless headers? I remember a big discussion about that here a while back...

- Justin

correct. that would be counterproductive if anything

[sweetbmxrider]

didn't know that?

[JL8Jeff]

Why would it be counterproductive? Coating keeps the high temps out of the engine compartment and helps pull more exhaust/heat out of the engine. The headers might stay hotter longer after shutdown, but while running the coating is always a plus. It's not necessarily to protect the metal but probably not worth the cost to do on stainless headers.

By the way Mike, nice headers! Where's the EGR connection though? :scratch:

-

[Tru2Chevy]

Why would it be counterproductive? Coating keeps the high temps out of the engine compartment and helps pull more exhaust/heat out of the engine. The headers might stay hotter longer after shutdown, but while running the coating is always a plus. It's not necessarily to protect the metal but probably not worth the cost to do on stainless headers.

Seems we had this discussions back in '06 Jeff: http://www.njfboa.org/forums/showthread.php?t=15784&highlight=stainless+coating

Coating Stainless Steel headers is pointless imho & I always thought SS was actually far better at keeping underhood temps down in comparison then mild steel coated headers.

How does normal stainless steel act as a heat barrier?

- Justin

http://www.burnsstainless.com/TechArticles/Stainless_article/stainless_article.html

"Typical 1010 carbon (mild) steel conducts 219% more heat per foot than do the types of stainless steel we use in header fabrication. By contrast, quite a bit more heat stays inside the stainless header tubes and does not get passed into the surrounding air. By not allowing the contraction of the cooling gases as they flow down the tubes, more exhaust velocity is retained which promotes better scavenging at the collector. This retention of velocity increases the overall header efficiency."

http://performanceweldingheaders.com/svsm.htm

"It is believed that due to Stainless Steel Thermal characteristics, the high exhaust temperature is retained inside the primary tubes and can increase the exhaust speed in the header, which in a Competition Racing Header sometimes is an important goal. Due to the simple fact that there is no rust generated, the inside of each primary tube will stay smooth and flow accordingly"

http://www.quicktimeperformance.com/Headers/

"Stainless steel performs this function without the need for add-ons because it has a much lower coefficient of thermal conductivity, thereby keeping more heat inside and transmitting it to the header outlet. Radiated heat is perhaps the most important reason to wrap or ceramic coat the headers to protect the car and the driver from excessive, fatiguing high temperatures"

(Sorry for the hijack Mike)

- Justin