My header should arrive later on today. I got a DC Stainless 4/2/1 for my GSR...

I've heard that a header might make my engine bay hot, which can take away performance. I'm trying to keep that from happening.

Does anyone have experience with "Jet Hot" or any other powdercoating companies? Does it work to keep the engine bay cooler?

I'm in the Los Angeles area. Does anyone know of any "local" powdercoating companies?

TIA!

 

ive never heard of anyone powdercoating their header before, if you were concerned about heat then why didnt you get the ceramic coated header? i really dont think the heat the header dissapates is going to make that much difference

 

it should NOT make a big difference on a street car - if its for the track or the strip you might wanna coat it - try a search (archives) its been covered before

 

I had mine true ceramic coated, very thick sandy coating. much improved engine bay temps. Swain Technology in Scottsville NY just south of Rochester.

pic in my site, link in my sig, it looks kind of gray/rough texture.
very happy customer here

 

Ive heard a couple of people Jet Hot Coating or Heat Wrapping their header to reduce engine bay temps, which is always a good thing.

 

Thanks for teaching me about the search button... My car will be used for racing, as well as being my daily driver.

The reason why I asked this question again is that I don't want to ship my header to Jet Hot. If you read the post in the archive, someone sent their header to Jet Hot, and it was returned with damage.... Don't want that to happen to me.

Does anyone in the Los Angeles area have experience with a local company that does powdercoating?

TIA, Again



[Modified by passion4healing, 10:19 AM 1/23/2002]

 

Hey:

So far my experience is with 5.0s, but having the headers on my car Jet-hotted made a significant difference in underhood temps. Also looks cool. I have had universally pleasant experiences with Jet-Hot, but I also insure everything I send them.

An advantage to sending the header to them instead of buying a precoated unit (again my experience is with Mustangs) is that they coat the inside and the outside of the header. This would help to keep rust away, I am sure.

My experiences with header wraps on street cars have all been pretty negative. It does lower the amount of heat coming out of the header, but it also traps a lot of moisture and condensation inside the header pipe. Makes things rusty in a hurry.

This is with V8s in the humid midwest. West coast results may vary.

Steve

 

You don't want powercoating, you want thermal coating, there is a difference.

 

There is a company in Phoenix, AZ called HPC (High Performance Coating). They do a good job and they are closer to you than any of the other companies listed so far. I think it's $110 for inside/outside header coatings.
http://www.hpcoating.com

 

You cannot powdercoat your headers. The coating will not be able to withstand the heat. I asked my local powdercoating company about this one time when I had wanted to get my turbo manifold coated.

 

There is always a flip-side.

In this case backpressure increases at your exhaust ports.
If heat is insulated within the header, it does not escape to the engine bay, then the temps within the header increase significantly.

I have heard many people relay negative expeiences with header-wraps, and yet I see many people with them in their turbo drag cars.

Remember though thatt the drag setups are not meant for longevity. If you are hoping to keep your vehicle I would dissuade you from investing in header-wraps or any thermal coating that locks heat inside the header.

Why then do turbo-charged drag-oriented imports use header-wraps? Because the added heat/pressure within the header propels the turbine slightly better. They don't care about engine temps down a 1/4 mile stretch. Just getting that boost wheel to spin faster. Plus, these guys have been able to tune for reversion (backpressure) to cancel out it's effects.

Be careful.

Karl

 

If you do it right, and coat the inside as well as the outside, the coating should have no effect on the longevity of the hardware. IMO, it should make it last longer.

 

ttt

 

you can just get thermo tec header wrap and that will be a lot cheaper than jet hot or powder coting

but the heat from your header will not take hardly any power away uyou won't notice this unless you are like steph, or jojo,or lisa, the point im geting at is you are not pro you don't need to worry about heat from header

 

Why don't you call Jet-Hot yourself. You have a bunch of opinions and none they are really true. When you get something with a high temp coating, not only are you keeping rust away, but the high heat will not get to whatever was coated. In the case of the header, they coat the inside and out. It creates a very smooth surface area that lets the exhaust gases exit more quickly. Kinda like the polish portion of a port and polish. You have double protection here. The exhaust gases exit more quickly and the heat in not transfered to the header. By doing this, the underhood temp is lowered, and the header will last longer. So, call them, get a price quote, and they will send you a video and info on their product.

 

I had my brand new JDM 4-1 header coated with Jet Hot this summer. I opted from the flat black 2000 finish and the thing looks great. Jet Hot gaurantees it from chipping, flaking, rusting, peeling, etc. for life and that's exactly why I sent it there. I had no problems whatsoever with Jet Hot and the header made it back to me in perfect condition. Well worth the $180 (which includes shipping) in my book.

 

This is not true. "Polishing" is only to make the part look like work was done on it. It is a way of making he customer feel they had a good porting job done. Polishing adds no special benefits to a aporting job.

Read: http://www.theoldone.com/components/cylinderheads/

Just Nit-Picking,
Karl