Exhaust - Competition Diesel.Com

Burner · 07-13-2006, 11:55 PM

Why do I not see SS headers on trucks? Everything I've seen is cast? Is there a heat issue or .......

partsguy662 · 07-14-2006, 12:28 AM

Quote:

Originally Posted by Burner

Why do I not see SS headers on trucks? Everything I've seen is cast? Is there a heat issue or .......

Because the hood is closed...

Burner · 07-14-2006, 12:36 AM

Yeah yeah........ keep it up smart boy.

*Billysgoat* · 07-14-2006, 09:26 AM

Heat issues Rich, all aircraft exhaust are stainless and we are always chasing cracks etc

***Timbeaux*** · 07-14-2006, 09:33 AM

I have seen an SS for a dodge, but there were problems with the weight of the turbo and cracking...

Burner · 07-14-2006, 09:39 AM

How do they survive on other applications? I've seen boats and plenty of fancy cars with them. Maybe a destress set is what's needed........

***Timbeaux*** · 07-14-2006, 09:43 AM

http://www.hotroddiesels.info/images/Headers/

Burner · 07-14-2006, 01:15 PM

WOW! That flange looks like it's over a 1/2 thick! I don't recall ever seeing one that thick? Does anyone know someone or have a header like this? Also, why the equal length tubes? I wouldn't think that a Turbo Diesel really needed those kind'a pipes?

Billy....cracking is a problem? I thought that most good down pipes were SS, many are flexed.

DavidTD · 07-14-2006, 03:22 PM

I saw that header while it was in testing last year at Houston. When speaking to the creator of it, I mentioned that the only loss so far I would know of would be the heat loss vs a cast iron manifold. Heat is a large part of the spooling process.

I did not hear how the testing went. But the cool factor is 100%

*Billysgoat* · 07-14-2006, 06:36 PM

Rich with a high vibration aircraft engine cracking is definitely a problem, as is the parts and pieces eroding from the heat. Now keep in mind that this is all really thin material as well for weight savings.

Burner · 07-14-2006, 07:58 PM

I wonder if it's a 200, 300 or 400 grade? I would guess it's 304, possibly even 316?

Billy, I guess airplanes use something in the 400? How could I find out?

David, I had heard that a fella made a set for a Duramax and actually lost power. He said the same thing....lost too much heat.

Would a coating, like a powder coating, help retain the heat?

......is it possible to make a SS in a cast form?

*Billysgoat* · 07-16-2006, 02:31 PM

SS is definitely available in cast form, but the $$$$ is outrageous. I think what it boils down to is there are not enough advantages to offset the cost of production.

As for what grade aircraft is made out of I have no idea, you might be able to do some looking on replacement part seller's websites and find out. It has never really interested me that much so I just can't tell you.

07-13-2006, 11:55 PM	#1
Burner Name: Burner Title: slow poke Status: Not Here Join Date: Apr 2006 Member`s Gallery Posts: 4,393	Exhaust Why do I not see SS headers on trucks? Everything I've seen is cast? Is there a heat issue or .......

07-14-2006, 12:36 AM	#3
Burner Name: Burner Title: slow poke Status: Not Here Join Date: Apr 2006 Member`s Gallery Posts: 4,393	Yeah yeah........ keep it up smart boy.

07-14-2006, 09:39 AM	#6
Burner Name: Burner Title: slow poke Status: Not Here Join Date: Apr 2006 Member`s Gallery Posts: 4,393	How do they survive on other applications? I've seen boats and plenty of fancy cars with them. Maybe a destress set is what's needed........

07-14-2006, 01:15 PM	#8
Burner Name: Burner Title: slow poke Status: Not Here Join Date: Apr 2006 Member`s Gallery Posts: 4,393	WOW! That flange looks like it's over a 1/2 thick! I don't recall ever seeing one that thick? Does anyone know someone or have a header like this? Also, why the equal length tubes? I wouldn't think that a Turbo Diesel really needed those kind'a pipes? Billy....cracking is a problem? I thought that most good down pipes were SS, many are flexed.

07-14-2006, 03:22 PM	#9
DavidTD Name: DavidTD Title: DPM Status: Not Here Join Date: Apr 2006 Member`s Gallery Posts: 627	I saw that header while it was in testing last year at Houston. When speaking to the creator of it, I mentioned that the only loss so far I would know of would be the heat loss vs a cast iron manifold. Heat is a large part of the spooling process. I did not hear how the testing went. But the cool factor is 100%

07-14-2006, 07:58 PM	#11
Burner Name: Burner Title: slow poke Status: Not Here Join Date: Apr 2006 Member`s Gallery Posts: 4,393	I wonder if it's a 200, 300 or 400 grade? I would guess it's 304, possibly even 316? Billy, I guess airplanes use something in the 400? How could I find out? David, I had heard that a fella made a set for a Duramax and actually lost power. He said the same thing....lost too much heat. Would a coating, like a powder coating, help retain the heat? ......is it possible to make a SS in a cast form?